Thread: Nuvi 13xx and 14xx software versions summary

Originally Posted by rik70

must really find a version that it caused, but we always follow the following procedure:

alt.fw 2.90 -> orig.fw 5.40 -> alt.fw 3.10 -> orig.fw 5.40 -> alt ... -> orig.fw 5.40

therefore never alt.fw 2.90 -> alt.fw 3.10 -> alt ... -> Orig. -> Alt

to rik70
Try to ask you again.
Did you use for flashing firmware (alt. fw 290 and orig. fw 540) with .rgn ? extention (not .gcd ?) and loaded it into Nuvi by Updater tool when Nuvi is in pre-boot mode?