With MHD officially out of beta for (2012+) late E-Series cars, more people want to unlock their ECU's. I have attached a guide I made on how to remove the DME in order to ship it off to be unlocked for those in remote locations or for those who'd rather turn their own wrench.
ECU Removal:
https://docs.google.com/document/d/1...it?usp=sharing
Benchflash:
https://docs.google.com/document/d/1...it?usp=sharing
Please feel free to point out any errors or suggest changes.