BIOS hacked - Cure? - 4ChanArchives : a 4Chan Archive of /g/

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Anonymous
BIOS hacked - Cure? 2015-11-13 01:48:11 Post No. 51320116
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BIOS hacked - Cure? Anonymous 2015-11-13 01:48:11 Post No. 51320116 [Report]

I have an old (OLD!) laptop that's been thoroughly taken over.

My BIOS PW still works, but the BIOS itself is mangled. The boot order cannot be changed. And I can get a boot menu on screen (which won't allow USB) but which gets ignored and the HDD boots anyway. So I'm having trouble flashing the BIOS, and I doubt it would work anyway.

I took out the CMOS battery in the hope that it will reset the BIOS to factory settings. I assume the BIOS PW is not saved in the BIOS RAM for theft protection. So a corruption of the BIOS wouldn't affect the PW (still works, the hack didn't affect the PW).

Is this likely? Is there anything else I can try? Do I have this all wrong?

inb4 stolen hardware. It's a Fujitsu over ten years old, no one steals those. And I have the Password.

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Anonymous 2015-11-13 02:37:02 Post No.51320736
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Anonymous 2015-11-13 02:37:02 Post No.51320736 [Report]

>>51320116
Try to find a copy of the bios to reflash. If you cant you are probably SOL

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Anonymous 2015-11-13 02:45:34 Post No.51320838
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Anonymous 2015-11-13 02:45:34 Post No.51320838 [Report]

>>51320736
I have the BIOS, but I need to be able to boot from optical or stick to flash it.

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Anonymous 2015-11-13 02:46:37 Post No.51320851
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Anonymous 2015-11-13 02:46:37 Post No.51320851 [Report]

>>51320838
Try unplugging the hdd,it may boot from cd then

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(ID: !!rrwf+oBC9ac) 2015-11-13 02:47:50 Post No.51320866
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(ID: !!rrwf+oBC9ac) 2015-11-13 02:47:50 Post No.51320866 [Report]

I find this really interesting. Give me a few minutes to google it

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Anonymous 2015-11-13 02:49:57 Post No.51320890
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Anonymous 2015-11-13 02:49:57 Post No.51320890 [Report]

>>51320851
I will once I have it reassembled.

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Anonymous 2015-11-13 02:55:14 Post No.51320943
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Anonymous 2015-11-13 02:55:14 Post No.51320943 [Report]

Remove that battery

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Anonymous 2015-11-13 02:56:55 Post No.51320963
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Anonymous 2015-11-13 02:56:55 Post No.51320963 [Report]

>>51320890
Looks like >>51320851 the best option. Should work. Before you do that, make sure after you unplug the CMOS battery you leave it unplugged for a couple of minutes. Also, when you turn the power off, disconnect the power supply to the Motherboard and press the power button again to make sure its completely discharged.

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Anonymous 2015-11-13 03:00:27 Post No.51321009
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Anonymous 2015-11-13 03:00:27 Post No.51321009 [Report]

>>51320963
I will leave it over night. I have heard of capacitors... And reassembling it will be a bitch of an hour, there's foil connectors, angled screws, and of course I had to remove the back, screen, keyboard, anything but the heatpipe, to even get to the battery.

So, tomorrow I'll know more.

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Anonymous 2015-11-13 03:16:41 Post No.51321188
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Anonymous 2015-11-13 03:16:41 Post No.51321188 [Report]

>>51321009
Excellent. Let us know what happens OP

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Anonymous 2015-11-13 03:22:54 Post No.51321262
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Anonymous 2015-11-13 03:22:54 Post No.51321262 [Report]

>>51321188
Not sure how fast /g/ moves, but I will if this is still here.