Forgot to plug in AC adapter when updating BIOS

[smaddeus]

Guys, got a problem. I forgot to plug in the AC adapter when updating BIOS, now it wont start anymore.
I have a laptop HP Probook 430 G2.
I left the BIOS updating and went away meanwhile, then I came back and saw nothing but a fan spinning on max and a blinking power button, then I realized I forgot to plug in AC adapter, even though battery wasn't even empty or at any other critical state.

The fan is spinning on its fullest because it probably doesn't recognize the system, since it doesn't push out any hot air but cold one. The power button is simply blinking.
I tried to remove the CMOS battery from mobo, held the key combinations such as Windows + V, elsewhere it says B instead of V... It just wont boot up, black screen, can't turn off as well unless I remove the AC adapter if battery is out, or remove battery when it is plugged. I might be doing wrongly with the key combinations and step by step how to recover whatever went down...or I killed it...
Any ideas what went wrong? did I bricked the laptop, or is it savable by some tricks that are unknown to me? Laptop isn't mine, so my main PC is all fine and well in case anyone has a recommendation of flashing or anything.

[mariushm]

A bios updates in 1-2 minutes... unless your battery was really discharged, not having it plugged in is unlikely to be a problem.

 

I'd suggest unplugging it, disconnecting the big battery from the laptop motherboard, disconnecting the cr2032 battery and leaving it like that for 10-20s ... so that it discharges completely and cmos setting are lost.

Then plug everything back in and try to power the laptop.

If bios somehow got corrupted or you programmed the wrong bios, you'd have to go to a service to program a new bios in your bios chip or search for a service manual, the laptop may have a "program bios from usb drive, if plugged in a particular port or to a header on motherboard, and there's a file with a certain name on the usb drive"

 

[smaddeus]

7 minutes ago, mariushm said:

If bios somehow got corrupted or you programmed the wrong bios, you'd have to go to a service to program a new bios in your bios chip or search for a service manual, the laptop may have a "program bios from usb drive, if plugged in a particular port or to a header on motherboard, and there's a file with a certain name on the usb drive"

 

It couldn't have been the wrong BIOS considering I took it straight from the HP homepage with the specific model. So that part is highly unlikely in that case.
Maybe it crashed for the reasons that not because battery was at critical level, but because in general AC adapter wasn't plugged, hence why it always warns for it to be plugged (I skipped that warning if there was any). I am not really sure about if adapter has to be plugged at all times to be honest.

I have had the CMOS battery out for 40 mins since I wrote the topic it seems, waiting for a reply. I will try to put it back in and see what it does, but 10-20s already was a thing a while ago, seeing that I tried to remove it, power it on without it and holding the combination keys...

I hope I wont have to send it to service.

[smaddeus]

8 hours ago, mariushm said:

A bios updates in 1-2 minutes... unless your battery was really discharged, not having it plugged in is unlikely to be a problem.

 

I'd suggest unplugging it, disconnecting the big battery from the laptop motherboard, disconnecting the cr2032 battery and leaving it like that for 10-20s ... so that it discharges completely and cmos setting are lost.

Then plug everything back in and try to power the laptop.

 

Nope, it does the same thing. I will try the BIOS from USB.

P.S. I noticed that charging AC port is flashing its LED in orange...not sure why.

Update: Oh shit, I got it booted at least(not doing the BIOS from USB... but without battery, only with AC plug, since it goes haywire with that problem only when battery is in. Now it booted to windows with AC plugged in. Before it showed some error with the CMOS reset, some 503 or something, didn't catch that. I will see what has changed and happened.

Update: It seems all is fine, I will plug the battery later, currently I am looking for some updates that I needed to do and then I will do a proper BIOS update once again.

Update: Yea, everything works now fine. Turned it on without battery and with AC plugged in, and with hope pressed windows key + v even before I turned it on (holding power button for a bit), released at one moment power button while still holding the keys and magic happened.