I have a japanese version of the Nüvi 205. Unfortunatly there is no option on the device to change the language to English.

A few questions:

1. Is it possible to convert the navi to an english or german version? If yes - how?
2. Will the installed japanese map on the internal disk still work after the conversion?
3. Can I save the current firmware before the conversion and reflash it later to get back to the current configuration.
4. What should I definitly avoid in order to not brick the device and is there am methode to unbrick it? (just i case)

I am new to all the garmin flashing stuff, but know my way around tech stuff.

Thx in andvance for any help.