How can i update BIOS (Lenovo ideapad Z510) with weak battery

[Asad Gilani]

hi...i really need to update the BIOS because my cpu is stuck at 0.77 Ghz and only solution is to upgrade BIOS....but when i start upgrading the BIOS it gives me an error message that battery is below 30% and upgrade wont start....plz help me how can i bypass this error....battery replacement is a problem for me....so i need to bypass this issue....plz help.

 

[clutchc]

As long as the laptop is plugged into a working power outlet, it should not be an issue. Maybe your charger/power supply is failing.

 

[ffg7]

never update a laptop bios or install windows when on battery alone, always use external power when doing them.

 

[geofelt]

I really doubt that a bios update is tied to a slow clock rate.
A Bios update is risky if it fails. You can permanently brick your laptop.
That is why they want a good battery to proceed.

 

[Asad Gilani]

guys this cpu under-clocking is an issue related to z510 and it could only be resolved by updating bios....And yes laptop is connected to AC power but battery shows 1% and the update is not starting because it says battery should be at least 30%....so i need a solution to bypass that....

 

[Asad Gilani]

One more thing....If i completely remove the battery like if i pull out the battery will it help???
but its kinda hard coz its an internal battery :S

 

[ffg7]

latop has 2 batteries, cmos battery & main battery. the cmos battery is inside the laptop somewhere making it hard to find & remove wereas the main battery is plugged into the side or the bottom & by releasing a slide latch, it will pop out.

 

[clutchc]

guys this cpu under-clocking is an issue related to z510 and it could only be resolved by updating bios....And yes laptop is connected to AC power but battery shows 1% and the update is not starting because it says battery should be at least 30%....so i need a solution to bypass that....

That's why I suggested that the power supply/charger is not working. Remove the battery and see if it will start when it is plugged into the outlet. My Lenovo Thinkpad starts/runs w/o a battery.

 

[Ebin__]

Hello bro, here is the solution to your question.

1. download the firmware file from lenovo .
The file name is 8dcn40ww.exe.
2. Install winrar.
3. Right click on the downloaded file and click extract to folder.
4. Among the extracted files u will find a file named 'platform.ini'
5. Open it in note pad.

u will find the following lines in the file: -
{
; Supports on DOS WIN SHELL flash.
[AC_Adapter]
Flag=1
BatteryCheck=1
BatteryBound=30
LauncherAcWarning=messagestringA02
SecurityAcWarning=messagestringA02
}


change it to;-

{
; Supports on DOS WIN SHELL flash.
[AC_Adapter]
Flag=1
BatteryCheck=0
BatteryBound=30
LauncherAcWarning=messagestringA02
SecurityAcWarning=messagestringA02
}

6. Save the file
7.Among the extracted files, u will find a file names 'InsydeFlash.exe' . Execute it


Thats all , now the installation will proceed without battery check

Cheers , let me know if it helped

 

[MaRiNeR233]

Hello bro, here is the solution to your question.

1. download the firmware file from lenovo .
The file name is 8dcn40ww.exe.
2. Install winrar.
3. Right click on the downloaded file and click extract to folder.
4. Among the extracted files u will find a file named 'platform.ini'
5. Open it in note pad.

u will find the following lines in the file: -
{
; Supports on DOS WIN SHELL flash.
[AC_Adapter]
Flag=1
BatteryCheck=1
BatteryBound=30
LauncherAcWarning=messagestringA02
SecurityAcWarning=messagestringA02
}


change it to;-

{
; Supports on DOS WIN SHELL flash.
[AC_Adapter]
Flag=1
BatteryCheck=0
BatteryBound=30
LauncherAcWarning=messagestringA02
SecurityAcWarning=messagestringA02
}

6. Save the file
7.Among the extracted files, u will find a file names 'InsydeFlash.exe' . Execute it


Thats all , now the installation will proceed without battery check

Cheers , let me know if it helped

all fine until the laptop restarts to do the bios update. it says update failure due to low battery level.
also tried to change the batterybound value to =0 , also failure to update due to no battery found
any suggestions ?
p.s : sorry for my weak language