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I have a 2019 L5D and the MVPI3. Everything is connected properly, and I am connected to the internet. When I try the initial read, the VCM Editor fails to retrieve flash data. I have tried different PCs and gotten the same error. Also, I attempted to read the ECM with the TDN app and i got a "Convert seed to key, failed" error. I have submitted a ticket already and am waiting for a response. Does anyone know what will cause the editor to fail to retrieve the flash data from HP tuners?
Far as i know, these are write only ECU's. So based on your vin HPT generates the stock file for you to start. So its not reading out your calibration per se
As for why it fails, that i am unsure and HPT would be best to address i'd say.
GM e41 ECM upgrade kit has to be used with MPVI3 to work on cars such a
I?m having the same issue on my 2020 Duramax, I have the MPVI 2+ and the GM E41 unlock kit. Did you figure out why yours was not reading ?
Hey guys! I am having this same issue. Has anyone come up with the solution?
Resync your device and check to make sure it has not been disabled.
For everyone having issues.. i have seen multiple people NOT put the red and white wire in the correct location on the ECM fuse.. Or using the wrong fuse all together. 2017-19 are a different fuse than the 20+
Also make sure the batteries are good and charged
Internet needs to be GOOD
im having issue reading l5p dmax its a 2018 says failed to retrieve flash data i beleive unlocker is installed correctly resynced and retried many times no go . good hotspot connection via my phone. latest beta software. im stumped. whats going on????:banghead:
You have to have a a very good internet.
I have tried 3 different phones hotspots and none of them worked right.
If the data being transferred to HPTuners servers doesn?t go fast enough it will fail.
Connect to a good WiFi and attempt to try it again.
If the red/white fuse wire is in the correct orientation and on the correct fuse that would be my guess.
Maybe post pictures of how you have everything set up that might help.
Maybe a video would help us help you.