Thread: Turn your Nuvi 510 into a Zumo 220

Originally Posted by J2V2C2D

That is the problem. I can get into pre_boot (touching the screen left top and pressing the power button) then the screen gets white and there are 2 lines, a dot and instructions to press the dot. After that the device goes to Loader Loading again....

I have the same problem! Does somebody know how I get this thing in USB mode again...