Cant open my notebook after updating the BIOS/Chips Driver( System board (00A) CT Number)

[ub6424]

Hello @DavidCheung9999 

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@DavidCheung9999 wrote:

Somehow I finally can boot my notebook up. I try to press the window + V and the power button. The notebook does not turn on properly but with a different error message "CMOS Reset (502)".  After reboot the computer again it can run into the window and now I can use it. 

However, I am afraid the nb cannot turn on again after turning off. Should I update the bios/chips driver again? Or what can I do?? Many Thanks

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Check:

- CMOS battery: Should have 3V (Voltage)

- Enter BIOS and load setup defaults, save and exit

- Shutdown

- Start again ..

best regards

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[DavidCheung9999]

After shutting down my notebook for a while and power up again. It always shows the "cmos reset 502" on the screen. I can get into the window after keep restarting the notebook. However, I can't get into the BIOS. I keep pressing the F10 key, holding the F10 after restart and holding the FN key & keep pressing hte F10. No ways can get into the BIOS to cheeck the Cell battery.  

[ub6424]

Hello @DavidCheung9999 

Replace CMOS battery (CR2032). Should have 3V (Voltage)

It was a great pleasure to help you ✅

best regards

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Dear Community Member, please click the button [ YES ] on "Was this reply helpful?" to say Thanks and

make it easier for other people to find this type of solution by marking the reply ▶️ [ Accept as Solution ] ◀️

Do this on the post I wrote that helped solve it.

Thank you very much

             ⌨️

[DavidCheung9999]

I replace the new battery. It doesnt work😑

[DavidCheung9999]

I still need to use the crtl+v to start my computer. 

And it always show the CMOS reset 502 error

[DavidCheung9999]

I try to update the BIOS. However, it shows "The system bios update failed." "Unable to successfully flash BIOS image."

After that, I try to use the usb method to update the bios, it also failed.  "Unable to open BIOS signature file"

I cannot update/rollback the bios. What should I do?