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08-22-2012 12:57 PM
I have a HP pavilion dv7-3135eo with a corrupt BIOS. I get the 2 flashing LEDs on the CAPS LOCK. This leaves me unable to do anything with the machine as it won't start at all. The solution to this problem (LED Codes) is to "Restore BIOS from onboard backup (jumpers)". Is there any place where I can get a service manual or other manual that shows me where this jumper is?
Thanks in advance for any advice!
08-22-2012 06:02 PM
Take a look at this thread and see if it helps at all:
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08-22-2012 10:34 PM
Thanks so much for your prompt reply. I had seen that thread but the solution there links to a page I have already seen and that page states the solution is to restore the BIOS by taking out onboard backup jumpers for BIOS.
I would like to get my hands on a service manual so that I can locate the jumper and reset it. I am unsure if my laptop even has such a backup BIOS.
I haven't contacted HP yet to see if they will give me a copy of the service manual, I thought I'd try here first.
Thanks again for your reply!
10-02-2012 07:04 PM
BIOS restore function is usually initiated by holding winkey+b on powerup.
It *may* require battery removal, ac power removal, holding start button to bleed onboard capacitive power.
Then winkey+b before ac plug power and power button until lit, then release other keys.
System should blink, may beep. May or may not display a bios recovery screen.
If it shows some activity, but does not reboot, give it five minutes before trying again.
It could be verifying in the background.
Some recovery procedures beyond this are here:
If it's not insyde but is pheonix bios, check around the board or google for it - enough bios modders out there that you should find a procedure that works.