Quote Originally Posted by Neil View Post
...... Method 4: Extract Garmin.rar directly onto a clean microSD. Insert into the nuvi. Extract 113201000390.rar somewhere convenient, Desktop is fine. Inside that rar folder is 113201000390.rgn and Updater.exe, drag the rgn file onto Updater.exe to open the GUI, enable the Radio button for 'USB Device'. Put the nuvi into pre-boot normally connecting to PC and press 'OK' on the GUI when the unit's details show in the window and wait. The unit should then reboot automatically and 'Loader' should appear on the screen if the firmware update flash starts.

if the file Garmin.rar I downloaded from you was the modded boot.bin RGN file, then I think I have tried this method, however, I did not remove the 'last_id.bin' on the card in 1131 folder. I shall retry this method with the 'last_id.bin' file removed.