[help] 820-00840 “seems to boot”

[phantom]

i don’t know the history of this board…I’m pretty sure that u3900 was touched/changed (i don’t know why)

Motherboard boot with “no disk error.”

Tried another disk, same error!

It can’t see usb bootable from both usb

USB stick light stay on fixed

As soon as i try to boot in Recovery and write the password, it hangs, and then reboot

 

[phantom]

Edit.

 

[phantom]

If i write the wrong password, it not hangs, but load load load load load with no error or ends….

 

[2informaticos]

Try clean ME BIOS.

 

[phantom]

why you said something like this? have you a link for it?

 

[phantom]

could you clean my dump for me? (if is it possible)

DUMP 820-00840GIOTTINOVIDEO.BIN

Shared with Dropbox

www.dropbox.com

 

[2informaticos]

Try this...

820-00840 - Google Drive

drive.google.com

 

[phantom]

Is it better to clean MY bios?

 

[phantom]

I’m not able to flash

820-00840 8hv22 medusa clean ME + pram.bin

I have this error

Dropbox

www.dropbox.com

No problem flashing my dump

 

[2informaticos]

You dind't say to have Medusa.
In such case, no need to remove BIOS chip.
Connect Medusa and use its Clean ME function; over your backup.

 

[phantom]

I have not medusa! I have downloaded your rar, and There are 2 bin inside

I have used the one with the name

820-00840 8hv22 medusa clean ME + pram.bin

 

[phantom]

edit

 

[phantom]

i've flashed this

820-00840 8HV22 clean ME.rar

drive.google.com

now i can't here the boing sound at the start up.,,,


still no ssd, and no usb till wifi frozen

 

[phantom]

i've tried to connect an usb mouse...it doesn't work at all

 

[2informaticos]

Sorry, my mistake about Medusa.

I will try to clean your dump later.

 

[phantom]

I’m 100% sure that they have changed usb ports….because i have found t2 shield resoldered…..so I Think there must be an hardware problem….but i have not diode mode readings for usb port

 

[richilg1]

No T2 on this board, do you mean the shield for the Intel thunderbolt controller? If that chip has issues, that would explain USB inputs not working. You need thunderbolt working for using almost everything USB C, except charging

 

[phantom]

yes i mean Thunderbolt controller !

 

[phantom]

any hints?

 

[2informaticos]

"i have not diode mode readings for usb port"
Can you be more explicit, what this means?