G580 BIOS battery replacement no start

Andrew_281 · Apr 12, 2017

G580 after replacing BIOS battery laptop not starting. Webcam LED on, power LED on, I can hear HDD and fan. But black screen only. After 4-5 minutes laptop just turns off. Need help!

webworkings · Apr 13, 2017

If you can hear things running inside, then it is actually on. Just your display isn't.. I suggest you try this...

1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.

NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.

If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.

If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.

Andrew_281 · Apr 13, 2017

No luck! External monitor shows in few seconds "no signal". I think it's somehow related with bios. Seems like I need to reinstall it.

webworkings · Apr 13, 2017

Could be. Stranger things have happened.

Andrew_281 · May 24, 2017

Solution: I installed a new (another) BIOS, using USB flash with BIOS and fn+r keys combination. 5 minutes deal. Now I have access. Also, old BIOS password and settings still there - good!

webworkings · May 24, 2017

Great. Glad you got it sorted.

jukkalaar · May 15, 2018

Andrew_281 :

Could you give detailed instructions how you did it?

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