MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 MCUmall Forums
 Automobile engine ECU, Immo, Air bag chip tunning
 Eeprom 93c66 cant write with Wiilem 4.5
 Forum Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

dshimkute

Venezuela
1 Posts

Posted - 07/29/2018 :  06:40:58  Show Profile
Hi, everyone. My name is Dy, Im from Venezuela. I tried to write 3 new eeproms 93c66 but I cant, read and write must be in 16 bit mode. I have a willem 4.5, with soft 0.98d5, and when I want programming always say ERROR. Even I tried to write another dump, not specifically wich I need, and is the same.

I open the soft and without device I read and put in screen, device read ok, when I verify say device verify ok. It is normal?

I tried with another willem soft but without good results.

Probe voltage in all pins, when start read or write pin 8 voltage up to 5v, pin 1 up to 5v when I intented write, pin 3 voltage down from 5v to 0.19v while write, pin 4 voltage up from 0v to 0.49v more less.

Every thinks look fine, I dont undenstarnd what is the problem?

I need help because really need write this eeprom, I need make immo off to Toyota Corolla urgent.

Thanks!!!!
Reply #1

ZLM

2945 Posts

Posted - 08/05/2018 :  10:37:03  Show Profile
pin 4 should be 0V. That is ground pin.
Go to Top of Page
  Previous Topic Topic Next Topic  
 Forum Locked
 Printer Friendly
Jump To:
MCUmall EPROM BIOS Chip Burner Forum © Copyright 2003 - 2009 Mcumall Electronics Inc. Go To Top Of Page
Generated in 0.07 sec. Snitz Forums 2000