X-PROG3 PC Adapter enables Launch X-PROG3 to read multiple ECUs.
Here is a review of this adapter:
SIM271DE2.0 & Launch X-Prog3 PC Adapter Read EEPROM FLASH
Check out how it is done.
SIM271DE2.0 ECU.
Connect X-Prog3 to PC Adapter.
Connect X-Prog3 to ECU unit by pinout.
Read EEPROM and FLASH no problem.
Credit to @CT0KAH.
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