I've accidentally bricked two LS1 PCMs that are licensed to my EFILive V1 cable. The first was toast after playing with electronic throttle tables and the second was a result of a bad calibration file.

I sourced (what I think to be) the correct replacement flash chip, replaced the chip on the board, and I cannot communicate with the PCM using either EFILive or Tech2.

Does the chip need initialized somehow?

Or do the problems go beyond the flash chip?