Question: How can i use KT200 ecu programmer r/w pcr2.1 in bench? I have to unlock eeprom first and after read and write normal?
What is the process for using the KT200 ECU programmer to read and write PCR2.1 on bench? Do I need to unlock the EEPROM first before proceeding with normal read and write operations?

Answer: While ECUHELP KT200 is possible to r/w pcr2.1 via OBD, it can be a lengthy process that requires careful attention to instructions. Alternatively, in a bench, you can first read the EEPROM and immediately rewrite it. This will automatically unlock the software, allowing you to read the flash and write modified flash. Have done many on bench, and is relatively straightforward. However, it is recommended to use a better power supply for optimal performance.
ECUHELP KT200 read pcr 2.1 no problem: 


ECUHELP KT200 write pcr 2 .1 no problem: