Lenovo Yoga Slim 7 Pro 14IHU5 O

[shybear]

hi,
I need help for a Yoga Slim 7 Pro. 14IUH5 O
Factory ID: JVHFC1 s/n PF351NZS
Machine power on (LED ON) for like 10 seconds then shut down. Power section is fine and also battery recharge correctly.
I attach copy of original BIOS here.
Thanks in advance.

[SMDFlea]

hi,
I need help for a Yoga Slim 7 Pro. 14IUH5 O
Factory ID: JVHFC1 s/n PF351NZS
Machine power on (LED ON) for like 10 seconds then shut down. Power section is fine and also battery recharge correctly.
I attach copy of original BIOS here.
Thanks in advance.

The backup you posted is for AMD models. Yours is an intel model. Attached is a virgin bios, you can add the DMI info using U1 tool.

The bios is for these models - Yoga Slim 7 Pro 14ITL5 / Yoga 14sITL 2021 / Lenovo XiaoXin Pro 14ITL 2021 / Yoga Slim 7 Pro 14IHU5 / Yoga 14sIHU 2021 / Lenovo XiaoXin Pro 14IHU 2021 / Yoga Slim 7 Pro 14IHU5 O

[shybear]

Woah that's really weird! Yep mb CPU is an Intel. SRKH5 (Intel Core i7-11370H)

Clearly someone else messed with laptop trying to flash BIOS because I made the attached BIOS reading soldered BIOS chip with programmer.
Now I'll try to understand how works UI Tool to modify the virgin BIOS you attached in the thread.
Thanks for you precious support.

[SMDFlea]

Woah that's really weird! Yep mb CPU is an Intel. SRKH5 (Intel Core i7-11370H)

Clearly someone else messed with laptop trying to flash BIOS because I made the attached BIOS reading soldered BIOS chip with programmer.
Now I'll try to understand how works UI Tool to modify the virgin BIOS you attached in the thread.
Thanks for you precious support.

I found another thread where the same virgin bios is posted - https://www.badcaps.net/forum/troubl...m-7-pro-14ihu5
peste has posted the DMI/Key offsets for hex editor modding.

[shybear]

Today I get the usb-c / HDMI adapter and it works.
I took a bit to be able to see BIOS on external monitor but finally I did it.
The installed operating system has Bitlocker installed so each time I try to boot. it ask me the recovery key.
The message says it ask recovery key because secure boot is disabled.
In BIOS main information there are two options that I can modify:
1. language (English or Chinese)
2. Secure Boot (Enabled/Disabled)
but this one is locked and doesnt' let me change to ENABLE.
Is it because I've to fix BIOS inserting MDM infos with Golden Key or a Bitlocker protection?
BTW I think I can ask to the owner of the laptop to search the recovey key.

[volinakis]

reinstall windows ...

[shybear]

reinstall windows ...

Yep for sure this is the easy way but if its possibile to recover Bt Locker key its better

[m1ch43lzm]

Yep for sure this is the easy way but if its possibile to recover Bt Locker key its better

https://support.microsoft.com/en-us/...3-056f5ab347d6

Bitlocker key should be on customer's MS account, if BIOS was flashed the TPM is reset... That's why I disable Bitlocker/Device encryption for home users

[shybear]

https://support.microsoft.com/en-us/...3-056f5ab347d6

Bitlocker key should be on customer's MS account, if BIOS was flashed the TPM is reset... That's why I disable Bitlocker/Device encryption for home users

Yep you're right! The Bitlocker was stored on MS customer's account so he gave me and operating system started properly.
There is something intersting things if someone else will find this problem.

- if LCD panel is broken (as my case) any usb-c/HDMI adaptor will works properly just take care to attach it in the laptop port near the LED ON / charching status expecially at boot because if you attach to the other port it will not work / no matter if press F7 key function switch monitor
- if machine is locked by Bit Locekr, on BIOS "information" Bit Locker is DISBALED and it not let be modified even if if into "Security" its enabled.
When you'll unlock Bit Locker protection it will be actived automatically aso on the Information tab..