FormulaFlash ecu programmer read and write Hyundai Continental SIM2K-240 irom TC1766 ECU successfully.
It’s a Hyundai Sonata 2012.
Need to open ECU and do it in boot mode.
Formula Flash will give you bootloader wiring diagram. Find the correcr boot pin.
Read eeprom & flash ok.
Write eeprom & flash ok.
Supports checksum correction.
DTC OFF ok.
