Burn1 issue

[WallyCJ7]

Today I trying to work on tuning and I'm thinking the Burn1 is not working.

Start Flash & Burn

27SF512 highlighted
Chip address set to Start: 00F000 End: 00FFFF
Buffer address: start 000000 end 000FFF

Erase chip - Erase Succeeded
Blank check - Chip is blank

I load file to buffer... it shows C:\......asdu05.bin file size in bytes (integer/Hex): 4096/0x1000

Program chip...Prom I/O succeeded.

Verify chip with buffer.... Failure: Verification failed (not matched)

Blank check... Chip is blank.

I've tried it with different .BIN files and it always the same.

I've rebooted the computer, used a different computer and its always the same...

2 different chips used
??? Burn1 gone bye bye?