OpenGD77

It asks me to restore the flash from a file, but I don't know what it is. When I install the original .sgl I get a "low bt version" message on the screen. and from there it does not happen. If I install it again the gw77 fw works very well. What am I doing wrong. regards

Low BT version is being displayed because you have not restored the Flash memory backup, prior to re-installing the official firmware

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okay. but when I restore the flash from gd77 cps, it asks me to do it from a previously saved file and I don't have it, in this case how do I do it? Will you have any flash files that you can share with me? Or could you explain in a little more detail the steps to do it? thanks and regards

Its documented in the manual that you must backup.

https://github.com/rogerclarkmelbourne/ ... thing-else

Backup your radio now. And save these files somewhere you won't delete them.

Then try contacting Angelo memberlist.php?mode=viewprofile&u=236 and asking for his backup of his Flash data from a DM-1801

Note. His Flash backup will contain his calibration data, so your radio won't work correctly unless you copy the lower 64k from Angelo's Flash backup into a copy of your backup, and then restore it to your radio.