Thread: Etrex 20 and 30 : an easy way to get into pre-boot

Originally Posted by smokefree

Preboot mode enables the use of Updater.exe to flash (modified) firmware into the device. Not used for normal use.

That's great, thanks.

I've been into custom firmware's for just about everything I own for years but i'm new to the GPS scene. Are there good firmware's that exist for the 20 and 30?