2020 CMF Help

[comnrailpwr]

Version v8.3.38
Firmware 2.08.194
Boot 2.08.009
2020 Ram 2500 68RFE

Flashed modified file into the truck and went through as expected. Truck would not start and has dash gremlins. Can still communicate to the ECM it appears but no data showing on any PID's. When reflash is attempted it goes through the 100% checking, then says security unknown. after that is says erasing and immediately aborts with $0311. does this with modified and stock files. I do not have a bench harness to flash with. any ideas or tips to try before I send it out to be recovered?

Thanks

[battey914]

https://forum.efilive.com/showthread.php?31004-Error-0331-when-flashing-CM2450B-(CMF)-controllers/page2

Have you tried pulling fuses to calm down the bus?

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[comnrailpwr]

yes, I have. I saw that thread, but it is a different error. everything always ends the same. efilive is for sure seeing the ecm as autodetect is working and it begins to erase but that's as far as i got. currently got batteries unhooked in a last-ditch effort before I send off for recovery. this is a basic bighorn model so not even loaded up with modules. bone stock too.