Hi chas521 - thanks very much for the helpful suggestion. The problem is now fixed with much help from janch and another person from another site. We did actually try iGo8 but were as unsuccessful as we were with Primo before then. In point of fact we went through many, many Primo version trying to escape the error; none worked. However now working and running form the internal flash which is nice.

On another point. You helped me unlock a Mio 685 in 2017 - that worked brilliantly, thank you very much. I was wondering what the unlock was based on. I noticed that there is 'Helderheid' folder and am wondering if this is based on some version of MioPocket ? This recent business of the 7700LM has made me more interested in the ways these unlocks work. I have rebuild the 'Goode Reis' screen but have noticed that I cannot use PNG files in this unlock version. I have MioPocket 4 r68 and was going to try and 'switch' the unlock files with thoses currently installed. There are a couple of questions I would like to ask before attempting that.

When you first gave me your unlock the instructions required deleting all the files on the root of the device prior to copying over the contents of the file you gave me. Would I assume correctly that the device is capable of a USB connection without any files present on the root ? The reason I ask is it would be simplest for me to install MioPocket after removing or segregating the existing files. Would that work ? I was concerned as the Wince .exe and associated files are also on the root.

I am assuming the original unlock cannot use PNG files ?

I am interested in learning a little more about how the various unlocks function.

Thanks again for all the help. Regards, Ramses