Hallo good morning. I did like you said. I downloaded the RMPrep_usb. and installed it on my computer. After i connected the DS to my computer and ran the RMPrep with the settings a shown in spoiler:
Spoiler:
[Only registered and activated users can see links. ]
Then i downloaded the new fresh bmap V6 and copy and pasted it into the .system map to replace the old one. I disconnected the device from te PC an start it up. Nothing seemes to be changed. The old bmap (V5) was back in place. I reconnected the device to the PC and proceeded to update. After GE updated the device i disconnected it from the PC and started up. Unfortunatly nothing has changed. The old softwareversion was still there ( V 4.10) and no maps where updated. Strange is that the gmapprom.img is present on the system but cannot bee seen on the decice nor selectable in the devices settings. All i add to the device ( folders or files) are removed during ne next startup. What more can i do?