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.