[SOLVED] HP ProDesk G3 400 SFF - - - PC turns on and off (without monitor display) right after I accidentally made a BIOS update failure ?

[fordcliff]

My Pc was accidentally disconnected from power while it was doing a bios update which caused the problem I stated in the thread title.
I've done the following:

• resetting bios by ejecting battery for 5 mins
• pressing cmos reset button
• reseating internal components(cpu, ram, hdd, disk drive)
• cleaned the gold contacts and slot of ram
• repasted the cpu
• discharging possible residual power
• swapped memory
• swapped power supply from my other working desktop

But to no avail, none of them fixed the issue.

I also tried to reflash the official bios by creating a usb flash drive bios recovery, I followed all the instructions stated on the HP support site but I can't seem to access the bios. I inserted the bios recovery flash drive while the pc was unplugged and pressed windows key + B combination before turning on the pc to initialize the flashing but yeah the pc would just turn on for a sec and fans spin and then turns off and turn on again in a loop. Is there any other way to fix this that doesn't require an external bios programmer ?

Hope someone sees this, and thanks in advance.

 

[rgd1101]

Is there any other way to fix this that doesn't require an external bios programmer ?

nope. that the only way.
there is no bios because the lost power during the update

 

[fordcliff]

nope. that the only way.
there is no bios because the lost power during the update

yeah I thought so too just hoping for a miracle here , but do you happen to have any idea what particular bios programmer should I use to reflash bios? the bios chip is MXIC MX 25L12873F