Here we go steb by step:
1.) download and extract on desktop folder original from rar
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2.) open folder original and open updater.exe
3.) add dot beside USB and then mouse pointer on OK button ( don't click OK button)
4.) add finger in uper left corner of nuvi screen and with other hand connect nuvi to Pc
5.) when you connect nuvi to pc nuvi will turn on and when you see in updater.exe usb window your nuvi model, click buton OK in updater.exe
6.) when you see on nuvi screen loader loading you can remove finger from nuvi screen
7.) when flash is over, your nuvi will connect with Pc and you will see in folder Garmin garmindevice.xml
8.) run webupdater and download all