CH341a can erase and read but can't write and blank check

[hasel17]

So I am trying to repair broken thunderbolt FW on X1 Yoga Gen 2. The EEPROM chip is WINBOND 25Q80DVNIG. I already do a back-up and erase. But when I try to wrote new FW, it was successfull, but when I tried to read it, it still blank. when I try to do a blank check, it gave me instant error in address 0. I already tried two CH341A, already did the 3.3v fix mod, using AsProgrammer, NeoProgrammer, Colibri, and CH341A 1.29. But the problem still occurred. What I did wrong here? Can anyone help me? Thanks in advance. Here is the log in Colibri :

Checking for blank...
(Press Esc to cancel the operation)
Blank check completed,
checking time 8.555 sec.
Blank check error at the address: 0 (0x000000)
Erasing...
(Press Esc to cancel the operation)
Erasing completed.

Loaded file TBT.bin 425984 bytes
File size differs from size of the device!
Check Sum: CRC16 = 0xE261, CRC32 = 0x64AC3876

Writing...
(Press Esc to cancel operation)
Writing completed,
Writing time 11.94 sec.

Status Register1 = 0x00
Status Register2 = 0x00

Reading...
(Press Esc to cancel operation)
Reading completed,
reading time 8.562 sec.
Check Sum: CRC16 = 0x0000, CRC32 = 0xA738EA1C

[adamski1952]

Re: CH341a can erase and read but can't write and blank check

Just a guess but maybe chip is write protected.
Dont know if this will work but try using neoprogrammer click the dropdown on program ic and tick off protect.

[mon2]

Re: CH341a can erase and read but can't write and blank check

The file size is also not a match for this target. Are you sure you are working with the right flash device?

What do you see in the read back buffer? Post a few bytes. Then try to write ‘55 AA’. Verify this wrote ok.

[Benzohev]

Try flashing with the program AsProgrammer

[khaahk]

The original problem was that TB controller wrote to the chip too often, to the extent that some of the chips were warned out. This might be the case, try another chip.