Hi,
I've an n15w4 with a very strange problem.
I received the laptop after a failed bios update, so I downloaded the bios from Acer website, then after extracted the bios from installation package (with correct size, I extracted it from bios.bin file)
I reprogrammed the eeprom (after make a backup anyway), now the laptop start (the bios have a fake serial number and fake device name.. something like 123456789012 and acer_xxxx but it's work)
Everything went ok, but now I still have a problem... seem that the battery won't charge (seem, but I don't have any confirmation, that before the failed bios update, the battery charged normally).
As first test I clicked the "battery reset switch" after this operation, the orange charge light turns on and seem that the charge will start but after 5/10 seconds the orange light turn off and the battery stop charging (I checked the power supply consumption and the current start to rise till around 0.3 A then immediatly drop to almost 0.03A)
Another strange thing is that the battery is detected by the OS (win10 with a charge of 69% more or less...).
I also to did a complete test, I installed win10 x64 with all drivers and everything work as expected but if i remove the power supply the computer immediately went off.
I also checked all components searching for evident damages on IC or other components but on physical inspection everything seem ok.
So, I've two questions:
- How can I recover original bios information (serial number, laptop name, eventually win7 certificates if exists) from original bios dump?
- What I can check to start a diagnosis at electronic level?
thank you
I've an n15w4 with a very strange problem.
I received the laptop after a failed bios update, so I downloaded the bios from Acer website, then after extracted the bios from installation package (with correct size, I extracted it from bios.bin file)
I reprogrammed the eeprom (after make a backup anyway), now the laptop start (the bios have a fake serial number and fake device name.. something like 123456789012 and acer_xxxx but it's work)
Everything went ok, but now I still have a problem... seem that the battery won't charge (seem, but I don't have any confirmation, that before the failed bios update, the battery charged normally).
As first test I clicked the "battery reset switch" after this operation, the orange charge light turns on and seem that the charge will start but after 5/10 seconds the orange light turn off and the battery stop charging (I checked the power supply consumption and the current start to rise till around 0.3 A then immediatly drop to almost 0.03A)
Another strange thing is that the battery is detected by the OS (win10 with a charge of 69% more or less...).
I also to did a complete test, I installed win10 x64 with all drivers and everything work as expected but if i remove the power supply the computer immediately went off.
I also checked all components searching for evident damages on IC or other components but on physical inspection everything seem ok.
So, I've two questions:
- How can I recover original bios information (serial number, laptop name, eventually win7 certificates if exists) from original bios dump?
- What I can check to start a diagnosis at electronic level?
thank you
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