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BIOS Dell Latitude 7320 7420 7520 la-k371p

it seems bios chip is damadged, only working when is hot, so that would explain why dead after upgrade, and mabe corupted dump i read. can you please help we with a complete tested working dump?
 
it seems bios chip is damadged, only working when is hot, so that would explain why dead after upgrade, and mabe corupted dump i read. can you please help we with a complete tested working dump?
it works when the motherboard is hot not the BIOS chip
I think hardware problem.
 
@ThienBui please help again. i attached 2 dumps i tested on this motherboard and other mb too. The "working clear" works on other mb, 100% identical, but on my mb gives bios error 3 orange 6 white blinks. I also tried "stuck on logo" that starts on my laptop after about 30 seconds, it gets stuck on logo. I tried upgrading bios region and it's same result. I tried changing Me region and i get no 20v after that, only 5v. I tried me region from upgrade file on dell support, also i tried extracting me from other file and replace it on "stuck on logo" and same result, no 20v :(
 

Download list

stuck on logo.bin
32 MB · Views: 25

working clear uc2.bin
32 MB · Views: 55

@ThienBui please help again. i attached 2 dumps i tested on this motherboard and other mb too. The "working clear" works on other mb, 100% identical, but on my mb gives bios error 3 orange 6 white blinks. I also tried "stuck on logo" that starts on my laptop after about 30 seconds, it gets stuck on logo. I tried upgrading bios region and it's same result. I tried changing Me region and i get no 20v after that, only 5v. I tried me region from upgrade file on dell support, also i tried extracting me from other file and replace it on "stuck on logo" and same result, no 20v :(
@pclaptop you fixed problem or still have laptop?
 
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