Thread: Convert Garmin DEZL 760 LM to RV 760

Originally Posted by jprod

So I have everything good to go now???

Maybe, let's just be sure first. More blahblah from me, be patient:

Originally Posted by jprod

..... When the dialog box drops away you see it change the HW ID from 1730 to 1516... I then saved it as gupdatenew.rgn...

Seeing we had a little misinterpretation about gcd and rgn extension, best we clear up any possible tiny doubt about the HWID change before you press on Dave:

It if mean that you changed the HWID of the fw1_resources.bin & fw_all.bin to match the boot.bin's 1516 using the 'HWID Override' option of RGN_Tool, yes you're ready to fly. So, chocks away only if you did that by enabling the HWID override box at the top and typing in '1516' manually into the field before saving the hybrid *.rgn file. However, please also change the file name to 151601000480.rgn for absolute safety. Any other naming will force the flash regardless of existing HWID [eg your gupdatenew.rgn would flash with Updater.exe regardless of the current HWID. Naming it XXXX01000xxx ['XXXX' = present HWID, 'xxx' = software version with only '01000' between them] protects against accidentally flashing with an inappropriate boot.bin or mismatch of hwid because Updater.exe will report 'no updates available' if a mismatch is determined by it.

... If I want to go back to stock I need to take the original gupdate.gcd file make it a rgn file in the RGN tool and restore it to the device with updater.exe correct???

Yes, and again using the correct 'safe' naming of the file of course. That's by far my preferred method to return but it can also be done with a higher software version gupdate.gcd file added to the unit's .System folder. i.e. as you asked and i answered earlier:

Q.

Also if I ever wanted to go back to the factory settings just overwrite with the original gupdate.gcd??? .....

A.

Only if you retain the existing HWID can you then use a higher version dezl760 gupdate.gcd file to revert back to original dezl.

Thanks for the help... I would never flame anyone if I bricked my device... My choice I understand...

NP, thanks for understanding. I'd usually prefer to have done the conversion physically on an indentical unit myself beforehand but i don't have one available so i'm just a little paranoid.