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T450s won't turn on without battery disconnect - Any solution to this issue?

Q: T450s won't turn on without battery disconnect - Any solution to this issue?

I have read quite a few threads regarding Lenovo laptops requiring the battery to be disconnect to get the unit to turn on once it goes to sleep or is manually shut off. I started having this issue on my 3 year old t450s about 3 months ago. I disconnected the internal battery so that starting it up only involves removing the external battery. Is there a solution to this issue? Of course I'd like to resolve it on this laptop but I'm even more concerned about purchasing an new t model laptop. Love the laptop but am frustrated by this issue. Mark

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RELEVANCY SCORE 200
Preferred Solution: T450s won't turn on without battery disconnect - Any solution to this issue?

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RELEVANCY SCORE 109.2

This just happened to me again this morning. The third time in 3 months. I open my laptop and the three lights on the keboard (FN/Mute/Microphone) are all on. The power button does nothing at all. Suggested solutions that I've tried:- Insert a paperclip into the small hole on the bottom of the laptop and press the button with it.- Press the power button 11 times, then hold for 30 seconds on the 12th time. The only solution that has worked for me is to open up the laptop and disconnect/reconnect the internal battery. I now cannot trust that my ThinkPad will turn on when I need it. This could be bad for business if it happens at an inopportune time. I need a solution. Any ideas?

A:T450s won't wake. Power button does nothing. Only solution is to disconnect internal battery.

I am not confident of these suggestions, but would suggest that you try the following:: confirm you have the latest available BIOS, drivers, and operating system,Reset BIOS to the factory defaults and then make any needed adjustments to the BIOS settings.

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RELEVANCY SCORE 84

I have a Lenovo Thinkpad T450S laptop has two batteries. Internal Battery 1 is working perfectly fine. HW Info shows the following Info:Power Status: On AC PowerCurrent Capacity: 19570 mWh (100.0 %)Current Voltage: 11.936 V Removable external battery has been on 0% and charging for a weeksUnique ID: SANYO45N1775Designed Capacity: 23200 mWhFull Charged Capacity: 16570 mWhWear Level: 28.6 %Power Status: Charging Critical On AC PowerCurrent Capacity: 0 mWh (0.0 %)Current Voltage: 5.123 V I started hearing the USB Connect/Discount Sound when I recover laptop from Stand By mode approximately the same time that the battery stopped charging. I have no external devices (hard drive, printer, mouse, USB...) connected. I some times get the message "Battery 2 Not installed Message in a white pop up window. I have tried the following but the problem still persist1) Fresh Installed Windows 10.0.17134 Build 171342) Updated to the latest Bios Firmware3) Updated Lenovo Energy Management software but got a message saying Windows has the latest Drivers (However Battery Driver says Microsoft 2006)4) Updated Battery Firmware but got a message saying nothing to update5) Installed Lenovo Vintage Software & Reseted the battery but got an Error. Could it be a Windows Update problem since I am hearing Device (USB) connect/disconnect sound & the battery issue happen approximately the same time?Any suggestions? Buying a new battery would be my last option

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RELEVANCY SCORE 76.8

Lenovo T450sWindows 10 v1709Internal battery removedRemovable battery not installed when connected to ac power Has anyone noticed...When FnLk is toggled on, the green LED on the Fn key is not lit unless a battery is installed even though ac power is connected.This was never the case with Win10 v1703.

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RELEVANCY SCORE 71.6

I have over 8 of these Dell Inspiron 15 5000 "Gaming" series. Here is the issue I have been running into.
1. When the computer goes to sleep the fan runs non-stop.
2. The screen goes black and pressing the power button turns off the laptop, but it doesn't come backup when pushing the button again.
This is what I have tried to do to solve this issue.
1. Contacted Dell. This is what they did. Installed the latest BIOS and video drivers for both displays. Intel and NVIDIA. Disable some programs from starting up on boot. Ran the boot diag (found no errors). Asked I uninstall some programs (Meraki/Cisco) that might be affecting the system. They then told me since my warranty only covers hardware that I will have to contact software to solve. what?
2. After about 1 week of running the problem keep happening. So, I search and found that a new video driver.
Side note: Just got a brand new laptop same model/make and booted it up and went to grab some lunch and now it is video is freaking out!

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RELEVANCY SCORE 62.4

I just wanted to post a problem I had with my T450s, and the way I solved the issue. I couldn't find a solution online, so I am going to share how I fixed it, in case somebody else has this issue. PROBLEM:I had let the battery run all the way down, and when I connected the AC charger next, the laptop would not power on. The power button would blink green 3 times when I connected the charger, but pressing it down would not turn on the machine. I tried holding down the power button for 30 seconds, tried turning it on with and without the external battery. Nothing worked. SOLUTION:I figured that a battery pull would fix the issue, but pulling the external battery was not enough. The internal battery must also be disconnected. This process is laid out in the following video explaining how to replace the backup battery: https://www.youtube.com/watch?v=CJtH5S7RURo You do not need to replace the backup battery itself, just open the computer, unplug as directed, and then plug it right back in. My computer powered on immediately. I needed to reset the Date/Time in the BIOS, and then it booted up just fine Side note: I called Lenovo techinal support, and after describing the problem, they immediately decided to send me a box to ship the laptop to them for repairs. This was a fairly simple fix, once you know what you need to do. I would think that support should have known this solution (as I have seen many users encounter this problem) and be able to walk you t... Read more

A:T450s Won't Power On - With Solution

Hello and welcome,
 
Thanks for posting the fix (and problem).
 
Did you try the emergency reset hole on the bottom of the laptop after removing the rear battery and AC power before resorting to the internal battery disconnect?
 
Z.

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RELEVANCY SCORE 60

Hello I have a hp split x2 model number 13-m010dx and it will not turn on or charge up the battery. I tried to charge it with another cord to see if it was the cord but it would not charge or turn on. I have read with this model they have had battery issue. What can I do?

A:Notebook won't turn on Battery issue

You might want to take a look at this document: Battery Does not Power Notebook or Hold a Charge. It suggests troubleshooting steps to determine if the problem is the battery, the power supply, or the system board.You might find the answer to your battery/power issue as you work through the steps in that HP support article.   Hope this helps, for any further queries reply to the post and feel free to join us again  **Click the White Thumbs Up Button on the right to say Thanks**Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem. Thank You,GBL84I am not an HP Employee

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RELEVANCY SCORE 57.6

Hey guys! Just got a used t450s off eBay, and for some reason, the power button doesn't turn the computer off! I have to do it manually. I hit the button, and it doesn't do anything. Anyone? UPDATE: Solved. I just have to push it a bit harder 

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RELEVANCY SCORE 57.6

I accidentally closed my T450S without turning it off last night and went to sleep. Today it won't turn on. When I plug in the charger the power button blinks 3 times. I have work vital to my job and my studies that I must retrieve soon. The laptop is 9 months old, but the warranty is invalid because I live overseas and I can't ship it to the US for repairs. I have files I need Monday morning or I will fail my courses, which means I also lose my job. I have some of it backed up, but the finished product was a file too large for my google drive and I just bought a new external hard drive to back up this korning. I have tried:1. Booting without the battery2. The emergency reset button3. Removing the internal and external batteries and booting4. Draining the battery by holding the power button then booting with no battery5. Hitting the power button 10 times then holding for a minute then booting6. Removing the RAM, draining the power, replacing the ram, then booting with no battery7. Unplugging and replugging the connector between the charger and the motherboard8. Putting the whole thing back together and letting it sit on the charger for an hour in the hope that all this stuff did something and now it just needs to charge. Everything I tried left me with the same result. 3 blinks of the power button when plugged in, and no other response to anything else. Is there any way of repairing this giant waste of money sitting on my desk? Please help!

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RELEVANCY SCORE 57.2

Hello everyone! I use the t450s for school, and I'm very happy with it thus far. My only complaint is battery. Just today, I realized it had a 2nd battery. I'm relatively unfamiliar with it, so could someone please tell me how it works? Does it kick in after the 1st battery dies? Do I have to enable something? Thanks guys!

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RELEVANCY SCORE 57.2

I just got it today, after everything was set up, I started to use it. Soon after that a message bumped out and told me tthat there're important updates, and I chose to update them. Then the laptop shut down automatically, it made a sound after the screen became black and it can't turn on anyway. I tried press the power button, it made 5 short sounds and didn't have any other reactions. The green light and the red light on the "i" of Thinkpad keep flashing in a low frequency. The only thing I have downloaded to this new laptopThe only thing I have downloaded on this new laptop was google chrome. I have no idea what happened.... Can someone help?

A:New T450s doesn't turn on, please help

Hello and welcome,
 
Sorry to hear about this.  There's a post just below yours where a member reports a similar-sounding problem.
 
https://forums.lenovo.com/t5/T400-T500-and-newer-T-series/t450s-won-t-boot-after-bios-update/td-p/20...
 
They were able to fix things by using the emergency reset hole on the bottom of the laptop.  See pages 6 and 7 of the (English) User Guide - ThinkPad T450s
 
Z.

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RELEVANCY SCORE 56.8

Hi!Just switched from a macbook air to a T450S. Really like the computer in general but the battery time sucks for me. I use quite heavy applications but I still only get about one hour battery time (even though I have tweaked the battery optimization settings in the Power Manager. According to the specifications when I bought the computer, the batteries are of the type 6-cell litium jon 47wh.Is there anything I can do to make the battery life better? 

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RELEVANCY SCORE 56

Hi, I have a user at my company the let's her T450's battery rundown to empy... (She leaves it in sleep mode over the weekend and the battery dies) This happend a while back and I had to leave the laptop on charge all day, unplug the battery, hit the reset button on the back and then plug everything back in for it to start up again.   Today, this issue happend again where the user ran the battery down to 0% and now the laptop will not boot up at all.  I tried the following things noted below but all the laptop does is display three quick power button flashes when I plug the power cable into it.   *Uplug the power cable and the battery.  Hit the reset button on the back and then tried to power it on - Nothing*Uplug the power cable and the battery.  Hold the power button down for 30 seconds and then tried to pwer it on - Nothing Going to leave it sit for a while but I do not think this is normal when someone runs the batter down to 0%.   Has this happened to anyone else or is this laptop dead and I will need to send it in for service?  Would like some thoughts on this...  Thanks!

A:T450s Won't Boot After Battery Depletion

It sometimes takes an hour or so before the battery appears to begin charging from total empty, but usually it should boot fine regardless.Do these have the internal battery as well as an external battery?

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RELEVANCY SCORE 56

Hi, I like that my T450s has 2 batteries. But the thing that bothers me is that the removable battery is drained first entirely prior to using the built-in battery. I've noticed that this increases the "cycle count" of the removable battery as essentially the battery has been completely used. In other laptops this is not a problem as they come with 1 battery and the cells are depleted uniformly.  This has only become a concern for me when I want to use the laptop for long hours without a charger. This would increase the cycle count of the removable battery if done on a daily basis. By doing so will I be ruining the battery life ?  Pls let me know, thanks.

A:T450s - How many cycles can the removable battery ...

Not sure, but I guess this is a bit by design, True the external is wearing more by having more cycles, but this also means that the internal one has a increased live time. The external one will be the first to wear, but is also the more easy one to replace .I already have 2 externals with my laptop.But I get your point and I'm curious about it too. Depleting a battery fully will wear a Li-ion more then not fully depleting it (if my study's where right that is). So it might be true that the less wear on the internal battery does not compare equally to the extra wear caused to the external battery.On the other hand, the extra wear might not be that great to worry about. And this dubble battery design does give us the awesome feature to hot-swap external battery's (which I use quite more that I thought I would).

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RELEVANCY SCORE 56

Hi!I just received my brand new T450S with Win 7 Professional and Battery 1 is not charging (initially it was at 80% but now it's down to 79%).After reading here on the forums, I tried to see if I could find some info in the Lenovo Power Manager but without no luck (in the settings it says that the battery should fully charge).Any suggestions on what to do?THanks,

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RELEVANCY SCORE 56

My T450s has recently started discharging the internal battery first rather than the removable battery. I can't recall when this started to happen but I think it happened when I updated the BIOS to the latest version currently available. Anyone have any insight if this is an issue with other models and a fix? This is rather annoying. I have updated all of the other drivers with the System Update utility from Lenovo. Machine Type: 20BW

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RELEVANCY SCORE 56

Hi all, My 2-year old Lenovo T450s is experiencing charging problems. If I plug in the battery charger, it starts charging for a second, it then stops, then the cycle starts again. Needless to say that none of the batteries (neither the built-in nor the external) charge properly. I tried to: (1) buy a new battery charger, (2) unplug the external battery leaving the internal plugged in, (3) unplug the built-in (internal) battery leaving the external plugged in. None of these solutions worked. I then unplugged both batteries and plugged the battery charger, and the laptop works. What do you think? Is it a hardware problem (perhaps related to the motherboard - I can't think of anything else)? Is it a software problem? Thank you in advance for your time! Best, Paolo

A:T450s only works on AC when battery is removed

I cannot be sure without seeing it, but I would guess motherboard charging circuitry.  I am assuming it will not charge while turned off.
 
Are you still under warranty?  Many are 3 years

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RELEVANCY SCORE 56

Hi, I have an issue with my T450s laptop battery. The power management tells that the battery is charging and not charging intermittently. I am running windows 10 PRO 64 bits.I have the latest drivers and bios. 

A:T450s Laptop Battery issues

Does it not charge if you plug in the AC when the battery is above 96% already?

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RELEVANCY SCORE 56

Hi everyone, Just received my T450s. Installed the rear battery, then plugged in the power.  On my old T510 I have an indicator showing me when I have power hooked up, and indicates the charging status of my battery.  I don't see anywhere on the T450s chassis that indicates the status of the battery charge. The only thing I will see is the dot on the "i" on the top cover, flash when I connect power.  Surpised there isn't a status indicator. Peter

A:Just got my T450s - no battery charging indicator?

No, there is no charging indicator on the T450s. By popular demand, Lenovo added one back to the T460s.

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RELEVANCY SCORE 56

HiAnyone using Thinkpad T450s, everything is good excepet for the battery life. I bought late in 2015, I usually have a 3-4 hours unpludged, which only do some document editing, web browsing and some stuff like that, It is supposed to be 8 hours, is that right?What the hell should I do?!!

A:T450s battery life lacking

Hello and welcome,
 
I can't answer directly but it will depend on the combination of internal and external batteries you're running.  There were several options.
 
Which do you have?
 
Z.

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RELEVANCY SCORE 56

while this issue happen, i find its recording device is always on. and there is nothing change about the sound problem even i have disabled the recording device at the right low corner.

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RELEVANCY SCORE 55.6

Hello,
 
I got a T450s, brand new and everytime I am not plugged in (it's a laptop after all) the computer litteraly slows down to a point where it is unusable, a simple key (space, a letter, a number) will usually take 3-5 second and sometimes up to 20 seconds to register, no software is usable, CAD, video playback and authoring, completely useless when on battery. The thing is this is a laptop, I WILL use it on battery. That is despite me choosing high performance in the Lenovo power manager.
 
Anyway I can fix this?
 
 
Moderator comment: Model added to subject for clarity.
 

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RELEVANCY SCORE 55.6

Are T440s and T450s external 6 cell 72WH battery compatible?

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RELEVANCY SCORE 55.6

Here is the solution:
Go to the properties of the WIFI, "Control Panel\Network and Internet\Network Connections", Right click on the WI-FI adapter, Properties,  Configure,  advanced, Power output. Change it from 100% to 75%. If you wish to use external monitor attached to the docking station, you will have to change it to 50%. The only problem now with the 50% is that the WIFI will no longer switch off automatically. Closing the lid also affects this, so you may have to play with this setting.

Palo B

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RELEVANCY SCORE 54.8

I'm dual booting Windows 10 and Ubuntu 18.04 on my T450s. About a year ago, when I first replaced the removable battery with a new extended 6-cell external battery, I was getting 12-14 hours of battery life off a single charge. Now I'm getting about 5-6 hours on both OSs. I checked the battery health on LInux via: $ upower -i /org/freedesktop/UPower/devices/battery_BAT1and got the info that the external battery had only lost a few percent of its original capacity (can't give exact figures cos writing this from Windows). My general use cases are running firefox, mail clients (geary/postbox), translation/word processing software (memoy ms word, libreoffice). Main CPU usage usually seems to be Windows background processes. What can I do to resolve this? Recalibrate the batteries (although I'm struggling to find tools to do that on the t450s)? Reinstall Windows and Ubuntu?

A:Battery life on T450s with 6-cell reduced by 50% in a year

   I'm not sure how helpful this is but... it's all I've got...if you boot to Windows 10 and run the Vantage tool you can do a draw-down test.This wil reset the battery gauge, and having done that it testyou can then compare the present "Full Charge" capacity vs. the design capacity.

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RELEVANCY SCORE 54.8

how can I perform a system check on a built-in (not the external one!!) battery on T450s model? is there a way to get a replacement if I have an excessiv performance loss? The battery is in use for a bit more than one year and I have a 3 year warranty on it.Regardsmarco991

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RELEVANCY SCORE 54.4

After a long journey, both batteries in my T450s were flat, and this morning when I plugged in and booted up I got the message that "The battery installed is not supported by this system and will not charge".  True to its word, one of the batteries does not seem to be charging.  These are the original batteries which came with the laptop when bought new from Lenovo.  They have performed well since I received it, no problems to date, and no obvious reduction in performance.  How can I get the battery charging again? Thanks for your help.

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RELEVANCY SCORE 52.8

I can't find a way to disconnect and reconnect the battery. There is no battery pinhole. What to do?

A:Disconnect battery Chromebook CB5-571

Hello, You have to unscrew the 18 screws of the bottom and remove it. You'll see the battery connector.

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RELEVANCY SCORE 52.8

I can't find a way to disconnect and reconnect the battery. There is no battery pinhole. What to do?

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RELEVANCY SCORE 52.8

I just bought a laptop Aspire F15  F5-573G-74R7 .I intend to use essentially connect to a mains power outlet.When I insert a paperclip into the battery reset pinhole and press for four seconds, nothing change, and it seems it is recharging.How really turn off the batteries and to be sure it does it when I'm plugged to the AC power? Thank you, in advance.José

A:Aspire F15- Battery: how disconnect to use the lap...

You're supposed to use the reset hole with it unplugged. The reset hole is to remove static buildup from the laptop. It does not permanently disconnect the batteries. The only way to disconnect the battery is to open the laptop case and unplug the battery.If you are going to use it plugged in all the time,just do it and don't worry about the battey.

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RELEVANCY SCORE 52.4

My new t450s has worked perfectly so far, except for one occasional, and very frustrating, hitch. At times, usually when I just turn on the laptop after having shut it down, the monitor of my laptop will begin flickering. This flickering is like horizontal lines flashing across the screen and distorting the image. After a short time of this, the screen will usually black out and what looks like a barcode will appear on the screen so that anything I was working on will not be visible. I have found that I can temporarily fix this by wiggling the screen (but then the flickering returns soon after) or be restarting the laptop (which gives me about a day of smooth running but time after time the flickering has returned eventually). Does anybody have a similar issue? Any way I can fix this without mailing the laptop in? I leave for school in a few weeks and I would prefer to have my laptop going in. Thanks for any help

A:t450s screen issue

Is your problem as bad as mine in here? : https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T450s-display-issue-image-corrupt/td-p/2...

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RELEVANCY SCORE 52

Is there a way to disconnect the battery from my E15 574G without opening the case? I want to keep my battery disconnected when I'm not using my laptop for long periods of time. There is a little hole with a battery icon next to it on the bottom, anyone know what it does?

A:Aspire E15 574G battery disconnect

Hello, The hole marked by is used to reset the internal battery only. Unfortunately there is no solutions to disconnect the battery apart by removing the bottom of the laptop.

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RELEVANCY SCORE 52

Hi!

I'd like to know if it is safe to connect and disconnect a laptop battery while the AC power cord is connected and the computer is on?

Thanks
 

A:Disconnect battery without shutting off computer

its never done me any harm, i regularly swap batteries around on my laptops.
 

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RELEVANCY SCORE 52

     I have the above model laptop and have had it for about two years now. As many other posts that I have seen beforfe, I am having troubles with the battgery. The battery life is bad which is to be expected from a gaming notebook such as this. I always have the laptop plugged in, and recently it has been running very slowly.     I believe that the battery is shot. I could be wrong, but I think that it is a possibility. If that is the case, I was wondering if I could simply disconnect the battery and run solely on AC power. I am hesitant to do this because the battery is internal. Can I do this? 

A:[Aspire VN7-791G] Can I disconnect the battery and...

Hi,I would suggest you to do a battery calibration before trying to remove the battery, I don't know how it would perform without the battery but others will help you on that.Find the instructions here:http://www.howtogeek.com/172271/how-to-calibrate-your-laptops-battery-for-accurate-battery-life-esti...

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RELEVANCY SCORE 52

Recently (I suspect since I last upgraded the bios to  N10ET45W (1.24)) I have had a problem powering on my laptop.  I use linux primarily and close the lid to put the laptop to sleep.  The problem is that the laptop won't wake back up.  I can't trigger this, it appears to happen either intermittently or I am not fully aware of the circumstances that it happens under. 1. The light in the thinkpad logo does not glow at all2. Plugging in AC will makes no difference3. The power button led does not glow at all4. The fan does not spin up at any point.5. Removing the external battery does not help6. Pressing the reset button for 30 seconds does not help7. Removing the case and physically disconnecting the internal battery for a few seconds does work!  I thought the motherboard was fried and disconnected the interanl battery as a last resort.  Much to my surprise the laptop came back to life.  Since this seems to be happening outside of the operating system (OS is not initially involved in resuming from sleep, the hardware is), it seems to me it must be hardware/firmware related.  I have no reason to suspect that the hardware is bad as the laptop is in good condition and behaves perfectly otherwise. Is anyone aware of this issue, or experiencing it themselves?  Is there possibly a known firmware issue and resolution?  I could not find any relevant information about a problem like this. I could try to rollback or r... Read more

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RELEVANCY SCORE 51.6

I can not adjust the brightness either from the keyboard or from the screen 

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RELEVANCY SCORE 51.6

I need to pop in a new hard drive. That's easy enough to get to, but the battery isn't dead yet and it's almost impossible to disconnect the **bleep** thing. Do I really have to wait until it dies before I can work on my notebook (meaning I'll never buy another Lenovo again), or is there a much easier way to drain/disconnect the battery than the obvious?

A:How do I kill disconnect battery in 300-15isk so I can replace the hdd?

Hi SirACid, 
 
Welcome to the Community Forums.
 
If you can simply follow the hardware manual for harddrive disassembly step as described here on page 34-35.
After removing the drive compartment cover you can proceed with the steps to remove the hard drive and do not include removing the battery.
 
There is, however, an attention notice:
? Before removing the drive, suggest the customer to backup all the information on it if possible.? Never remove the drive while the system is operating or is in suspend mode.
 
Regards
 

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RELEVANCY SCORE 51.2

I know this is a common problem, but so far I did not find a solution to it.  The external monitors connected to my prodock via VGA and DVI blacks out every few seconds, especially during heavy usage. At first, I thought it was a power supply issue so I bought a 90W supply. Now the monitors stays on most of the time, but still blacks out every 10 minutes or so, even during standby with minimal power usage. Then I tried editing the integrated graphics settings, updating/rolling back graphics driver, flashing the docking station firmware with every version I can find, and switching to ubuntu on the other drive, but there wasn't a single combination of settings which would keep the external monitor on for more than an hour without blacking out/disconnecting.  So what should I do now?  System info:i7 5600u, 12G RAM, 16G + 128G ssd, 500G hdd, NO 940M, FHD IPS nontouch screen, Windows 10/Ubuntu 16.04Thinkpad Prodock 04A1, 45W/90W power supply. All USB and audio ports works perfectly. Both monitors are 1440x900 at 60Hz, works flawlessly when attached to laptop VGA port. 

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RELEVANCY SCORE 51.2

Hi, my headphone jack somehow stopped working when I unplugged my headphones and plugged them back in again (this is on Windows 10; speakers work fine). I tried a bunch of things, from disabling and re enabling the audio device, messing with multiple audio settings, checking different programs, all to no avail. I checked on Linux, and the headphones jack works fine. Finally, I checked some other threads and it appeared that the computer's sleep function had messed up the jack for others. So I tried plugging it in and sleeping and waking up the t450s, and the jack works now! However, if I unplug it the problem comes back...What's going on here? How do I fix this?

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RELEVANCY SCORE 51.2

Hi out there,my son's Ideapad 100-15IBD (80QQ018HGE) won't boot any more after the battery cable got disconnected.I set the battery plug in place again, but on power connect following appears:- the camery LED and power/charge LED light up for about 5sec.- after 2 or 3 seconds the colored Lenovo logo appears for 2 sec.- after 5sec in all first the screen goes black, the camera LED and then the power LED go dark and that's it.No boot, no disk spinning, nothing.When I push the power butoon, nothing, even after 60sec.I also pushed the NOVO button several times for to to 60 sec, both with and without power and/or battery connected. Before the battery got disconnected, the laptop worked without a flaw. Any ideas for the to get the idea pad running again?Thanks in advance!

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RELEVANCY SCORE 51.2

 I would like to spare my - internal -  battery as much as possible; I largely use my IdeaPad as desktop. I read that some Lenovo models have the option of disconnecting the battery through a BIOS setting. I went through all the BIOS options but I could not find it.

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RELEVANCY SCORE 50.8

My display driver "Intel HD Graphics 5500" has basically stopped working. When it is enabled, it makes the screen go crazy (hard to describe), and it is usable but just barely. I can disable the driver and the issue stops. So far, the only problem I've noticed with the driver disabled is that I cannot adjust the brightness, but there are probably more issues that I don't know about yet. My computer is completely up to date, with both Windows and Lenovo updates. I have deleted and reinstalled the driver multiple times (including old versions) but every time the same issue reappears. I have no idea what to do next. Any help would be greatly appreciated, and I can give more information about my system/drivers if needed.

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RELEVANCY SCORE 50.8

Hi all, Wondering if there are any others affected with the latest BIOS update? (BIOS version 2.46) Within our company we've had a bunch of Thinkpad T440s and T450s laptops continuosly BSOD, and the only connection I've found so far, which was from checking these forums, is the recent BIOS update. Any thoughts or experience with this would be appreciated.  Cheers, JasonS19

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RELEVANCY SCORE 50.4

Hi!

I have lenovo ideapad g585gc 59-356202 e1-1200, dvdrw, 4gb, 500gb, radeon hd 7310m, 15.6" led, ....
Almost 2 years old.
Yesterday it didn't want to turn on, and then I took out the battery and try without it and then turned on and everything is ok.

So,
1. with battery (with or without ac power) won't turn on
2. without battery (of course, with ac power) turn on

The problem is evidently in the battery. I want to buy a new one, but how can I be sure that the battery is really dead?

A:Lenovo won't turn on with battery, without battery turn on!

There are no good practical ways the average owner can test the battery. You have to go on the evidence.

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RELEVANCY SCORE 50

Hi guys. I have a T470 and after the latest Windows update I encountered a battery naming issue. Before the update batteries had proper order and were named accordingly: battery 1, battery 2, no surprises here. But after the update I noticed the order has changed to battery 0, battery 1 (attached pic below) Yeah yeah, I understand arrays start at zero but what is that? I was just wondering is it just me or you guys have the same situation going on with your batteries? Is there a way to change the order back to "normal"? .


























battery_issue.JPG ?20 KB

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RELEVANCY SCORE 50

After every boot, I see 4 Warning events in the Windows Event Viewer :"The speed of processor 0 (1/2/3) in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 71 seconds since the last report.Event ID 37 "Microsoft-Windows-Kernel-Processor-Power"It happens with both  stock 65W power adapter and 90W adapter.Lenovo T450S  running Win-7_64 Pro, BIOS default  settings.Installed latest BIOS  and "Lenovo power driver" as well as all "Recommended updates" by  Lenovo "System Update". Similar un-resolved posts:T420 Kernel-Processor-Power Event ID 37 Speedstep issueHelp: CPU speed limited with SpeedStep turned on (marked as "Solved", but not actually) 

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