Receiving an "Incompatible PCM software" error when attempting to write a file to a 2015+ Dodge/Jeep/Ram GPEC2A ECM indicates the ECM not been unlocked through HPTuner's services.
All GPEC2A ECMs require a hardware unlock in order to perform a write.
https://www.hptuners.com/product/dodge-pcm-services/
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