[Problem/ Request] Bricked TongFang GK7MRFR BIOS

[t1s50]

It's all said already

Hello everyone,[*]The Brick: Attempted to extract and flash a 64KB EC part from an old 1.04 file using dd and from the EFI shell flashed it with ifux64.efi .[*]The flash completed, but after an EC reset, the laptop went COMPLETELY DEAD (no power LED, no charge indicator, no fans, no POST). Later realised the initial 64KB extraction/flash was faulty and corrupted the EC boot sequence.

You flashed the EC firmware with something you extracted somewhere which bricked the board

The EC firmware resides INSIDE the EC chip and can't be flashed easily
You need either
- a preprogrammed EC- chip / IT5571e (see #15) to replace the EC chip or
- a programmer that can program an IT5571e

The GigaDevice GD25LQ80 is the graphics cards firmware.
It is an 1.8V chip according to datasheet, you may have damaged it when reading / programming it as 3.3V chip.
You didn't do anything with that chip when using ifux64, so basically there wasn't any need to fiddle with it.
Flash the original content of this chip back, check thoroughly for proper programming since the chip may have been damaged.

Flash your original backup for the bios firmware back to the 25Q128JVSQ

[cr4zychriss]

It's all said already



You flashed the EC firmware with something you extracted somewhere which bricked the board

The EC firmware resides INSIDE the EC chip and can't be flashed easily
You need either
- a preprogrammed EC- chip / IT5571e (see #15) to replace the EC chip or
- a programmer that can program an IT5571e

The GigaDevice GD25LQ80 is the graphics cards firmware.
It is an 1.8V chip according to datasheet, you may have damaged it when reading / programming it as 3.3V chip.
You didn't do anything with that chip when using ifux64, so basically there wasn't any need to fiddle with it.
Flash the original content of this chip back, check thoroughly for proper programming since the chip may have been damaged.

Flash your original backup for the bios firmware back to the 25Q128JVSQ

- i figured that out by myself when i bricked it
- miss interpreted the diagram wrongfully and chatgpt dint help at all with this .
Anyways not whats done is done… the viable questions that remain are:
1. if i get a svod, would i be able to reprogram the on board ITE without desoldering it ?
2. if that isnt an option, where can i buy a replacement ?
3. The crap that i flashed in the GD chip has been erased (ive used 1.8V adapter and the chip is still good, can read/write to it, no issue), i di not have a backup of it, so how can i restore that one ?
4. is the PCS EC from my attachment the right thing to flash to the ITE?

if you would be kind enough to explain in detail what are my real recovery chances here ?
i am willing to take it to a service but the people that ive already tried in the uk, said they do not have the specific firmware for this .

Many thanks for your time and patience.

[t1s50]

1. if i get a svod, would i be able to reprogram the on board ITE without desoldering it ?

Too many variables to answer that.

2. if that isnt an option, where can i buy a replacement ?

#15

3. The crap that i flashed in the GD chip has been erased (ive used 1.8V adapter and the chip is still good, can read/write to it, no issue), i di not have a backup of it, so how can i restore that one ?

#11

4. is the PCS EC from my attachment the right thing to flash to the ITE?

Probably
Either you have a compatible programmer then you can find out yourself or you have a preprogrammed chip...