MCU 4E28B

[lucianosantos]

Hi!

I have removed and mount it on socket hc11 of xprog was not able to read it has 4e28b so used maskset 0F36W and no problem to read and program it.
mount it again on ecu and put on car and didn't start pump not work. Had an other ecu make same job and same problem car not start. Put them on an in order working car and same result not start and pump not on. Check again on xprog data on mcu and all ok nothing change. Is that possible that xprog block this mcu? Any1 had such problem?..


Thanks for any feedback.

Regards
Luc

[electrones]

Dear friend

Use UPA-USB orig with adapter 9 R/W without any problems tested
Cheers

[lucianosantos]

thanks to reply, just try to read it with original UPA but on circuit lift reset Rx and TX but have allways reset bad 1,45v I thinq that my Xprog kill this MCU any idea to replace them?

[leandroks]

Try to read again, it can be a bad soldering, upa is a good device and it is very hard to damage mcus....

[ibratex]

thanks that helped me

[aketokediag]

I do read/write this MCU with my clone Xprog M 5.0 version without removing the MCU, i do lift first leg read/write in circuit without any problem, the MCU is very hard to remove from ECU. I produce wire diagram for it, it makes it very easier for me to W/R.
Regards

[Mikemikemike]

which one pin you lift