Bricked P59 tune

[greasess]

I've been tuning a swap with a P59/LQ9/4L80E. Everything was going well until yesterday when a cal flash bricked the PCM. I couldn't identify why this happened so I tried another PCM and it bricked that one too. I can't figure out what's going on. Has this happened to anyone else? Not that it matters but the guy that owns the truck is from AUS.
Here's a list of differences between the last file that ran fine and the one that bricks pcms.

Comparison summary: 12:48:33 pm, Friday Jul 31, 2020

Calibration comparison between COS base_0011.ctz and COS base_0012.ctz.
*Values that differ by more than 0.000100% are considered different.


04073003 "Operating System" N/A "Identical."
12587698 "Engine Calibration" N/A "Checksums are different, CAL: 44D6<-> ALT: 8F7D."
12586212 "Engine Diagnostics" N/A "Identical."
12578773 "Transmission Calibration" N/A "Identical."
12578790 "Transmission Diagnostics" N/A "Identical."
12578800 "Fuel System" N/A "Identical."
12585938 "System" N/A "Identical."
12578995 "Speedometer" N/A "Checksums are different, CAL: 018D<-> ALT: 6AF3."
B0101 "Main VE Table" -5.035156 "Different from cell: 0,0 to cell: 18,15 inclusive."
B0107 "Max Speed for Idle Mode" -0.485244 "CAL: 2 <-> ALT: 0"
B0108 "Max Throttle for Idle Mode" -20.000000 "CAL: 20.0 <-> ALT: 0.0"
B4603 "Desired Idle Speeds" 1.762417 "Different from cell: 0,0 to cell: 3,15 inclusive."
B4338 "Engine Speed Compensation" -12.750439 "Different from cell: 1,1 to cell: 1,11 inclusive."
B4307 "Desired Airflow" 7.600519 "Different from cell: 0,0 to cell: 1,15 inclusive."
B4308 "Airflow Parked" -3.578241 "Different from row 4 to row 9 inclusive."
B4522 "Stall Saver RPM" 3.320363 "Different from cell: 0,0 to cell: 1,11 inclusive."
B5402 "Tacho Pullup Enable" N/A "CAL: Yes <-> ALT: No"
H0105 "PCM Primary Pulses per Mile Output Rate" -1.176489 "CAL: 4000 <-> ALT: 1000"
H0106 "PCM Secondary Pulses per Mile Output Rate" -40.156865 "CAL: 128000 <-> ALT: 25602"

[ScarabEpic22]

You should be able to reset the PCMs, either via reflashing again with a known, good tune with EFILive or reset via the boot pin (google) then flash with EFILive. I'd change B5402, H0105, and H0106 back, I think there's an issue with the PCM when these are adjusted and/or set too low.

[greasess]

Thanks for the tips. I'll have to use the boot pin because neither PCM even shows up when you try to flash them or do anything else. Thanks again, I appreciate it.

[greasess]

It worked. Thanks a bunch.

[ScarabEpic22]

It worked. Thanks a bunch.

Glad to hear you're back up and running!