How to make R270 BDM programmer to erase M35080

I have a R270 BDM programmer R270+, my problem is that it reads the 35080vp chip but it can not erase it, it gives me error.  I ask because all of bought read 35080 and cas but not erase 35080. How to solve the problem?

 

 

Customer Solutions:

Sometimes vp don’t erase just replace the chip

Solution 1)

I played a few hours with my R270 programmer, and I succeed to make it erase 35080V6/VP in a few minutes.
First I changed 7805 with L7805CV, before voltage was 4.94V, after that is 5.02V, but nothing happens, still can’t erase more than hour.
after that I start to play with 35080 PCB, and in the end started to erase 35080V6/VP after 74HC125 changed with 74HCT125M, erase 5-10min tryed on 3 chips, maybe if I change 74HC00 will be better, but I haven’t one for try.

make-r270-better-on-m35080

Solution 2)

R270 M35080 V/VP not read/erase
1.Change the power supply to good quality: 12V 1.5A !
2:Change capacitor :

modify-r270-pcb

3.change resistor:

r270-m35080

Test working 100% by me. You are at your risk.

 

http://blog.obdii365.com/2017/05/03/modify-r270-bdm-programmer-to-erease-35080vp/

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About eobd21

I am a car lover and like to repair car by myself, and know more info about car diagnostic tool and other obd2 tools, share these info with everyone.
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