Eeprom 93c66 I cant programmer with Willem 4.5. Help!!!

**dshimkute** · 29th July, 2018, 12:46 AM

Hi, everyone. I have a Willem 4.5, I can read eeprom 93c66 16 bit , but when I want programming always say error.
I probe with 2 eeprom, and with 3 immo off from Toyota Corolla, that I found in this forum.
I read a lot but I cant find which is problem.

Datasheet say pin 6 ORG must have VCC to program 16 bit, I jumper pin 6 with pin 8. No programming, ERROR.

I know that dumps are OK because many people say that work fine.

Please, I need write this eeprom.
Thanks!!!!

**bersch8688** · 29th July, 2018, 05:02 AM

When you habe Digiprog you can try it

**aandroma** · 29th July, 2018, 07:57 AM

Friend try to use external 12v 1amp power adapter to write

**brend** · 29th July, 2018, 03:27 PM

Its very simpel work with this eeprom like 93Cxx.
Look better contakt and dump size.

**dshimkute** · 29th July, 2018, 05:53 PM

Thanks for your answer. Can you explain better how do it this? Where I connect this 12v?

**dshimkute** · 29th July, 2018, 06:02 PM

Thanks for your answer aandroma. Can you explain better how do it this? Where I connect this 12v?

Eeprom is sold in adapter sop 8 -dip 8, solder are good, all pins have continuity with own leg. I can read but cant write, dump size are ok. When I check voltage, pin 8 have 5v when read or write, pin 6 have 5v, because I put to Vcc for 16 bit, pin 1 have 5v when write, pin 3 have 5v and when I click in Programmer Chip down to 0.19v, pin 4 have 0v and when I programmer chip up until 0.49v.

I try to write 3 eeprom virgin, with differents dumps. With all dumps program say ERROR.
What is wrong?

Thanks guys for your help.