Clear CMOS on unowhy Y13 Ultrabooks on motherboard

[reformatt]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

Direct read from a chip on a board rarely works, so you'll have to remove it. I think in that kit, they give you a small PCB to solder the chip onto. You have to use hot air for WSON8 EEPROM's.

There is another adaptor I use that doesn't require soldering if you are interested. You have to wick the pads clean usually and clean up in IPA before good contact is made though.

https://www.aliexpress.com/item/1005...8daDVlmaC&mp=1

[highsnoop]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

Yattaaa
I managed to solder directly on the chip after one hour of fight.
I got the dump of my bios (I doing it twice time to compare result and the both files are identical).

Does the parameter to change in the file is my picture proposal (A Vs B)?

Thanks again for your help and hope my story can be help anyone in this adventure

or if someone can provide the same bios version (i don't know what is it) without password

Bios - https://www.badcaps.net/forum/showthread.php?t=115849
.

[YourBlamp]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

hi highsnoop
I also try to dump and put another bios in an unowhy.

What tool did you buy to do the trick?
Thanks in advance.

[highsnoop]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

Salut highsnoop
J'essaye aussi de dumper et remettre un autre bios dans un unowhy.

Quel outil tu as acheté pour réaliser la manip ?
Merci d'avance.

CH341a + adaptor 1.8v

For the driver + tools : Driver+tools

Impossible de lire la puce avec la pince, j'ai directement souder (voir photo) les pin 1 2 4 5 6 8
Attention ce n'a pas été facile car c'est très petit et la solution avec l'air ne pas convaincu avec le nombre de petite résistance proche du chip.

Pour l'instant je suis toujours bloqué et en attente d'un modification de mon Bios ou bien d'un bios compatible pour le remplacer

Impossible to read the chip with the pliers, I directly solder (see photo) pins 1 2 4 5 6 8
Attention it was not easy because it is very small and the solution with the air does not convince with the number of small resistance close to the chip.

For the moment I am still stuck and waiting for a modification of my Bios or a compatible bios to replace it

[highsnoop]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

For the expert

It's the same model of this thread https://www.badcaps.net/forum/showpo...91&postcount=2

So can i put this bios on my mine without problem ?

Thanks

[highsnoop]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

With the AMIBCP tools i read my dump

BIOS Date: 10/28/2020 19:55:13 Ver: 3BAPS05
American Megatrends Inc.
V0.5.0_P1S0M2E0F3L6B0T0P2G00A0U0D601_ENE
10/28/2020


Can i set option directly from this tools or can i do it with another one ?

[highsnoop]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

I flashed this bin file whose it the same version of mine.

I checked, erase, write , read and save it to compare to the original and no difference.

I desoldered all, check short circuits
Start the notebook and same result "Power led with black screen"

No idear....

[dwardo]

Re: Clear CMOS on unowhy Y13 Ultrabooks on motherboard

I also am facing the same black screen as I wanted to install Manjaro Linux using a USB key and modified
* / Setup / Chipset / Southbridge / OS Selection from "Windows" to "Linux"
* / Setup / Boot / USB Support from "Partial Initial" to "Full initial"
after save & exit got the black screen...

So I ordered my ch341a... am waiting and discovered AMIBCP

Have you tried opening your own dumped "borked" bios bin file in AMIBCP, changing the Setup/Boot/Fastboot parameter (cf. attached screenshot), saving under new name and flashing the modified bios ?

Bios contains the Serial Number of the Y13 computer (cf. attached screenshot)... so maybe its not just information and checked agains someting/somewhere and that's why flashing someone elses Bios is not working for you when you flash it...

[XNJ]

Hello,

Since I have disabled fastboot, the computer is blocked on a black screen.
I have extracted the bin file from the bios chip (Gigadevice GD25LB64C) with a CH341a device, I can share it if you need.
Can I modify the file with EnableFastboot instead of DisableFastboot?

Thanks for your help.