I have one nuvi 3490 with this simptoms:
- when connect to Pc nuvi won't turn on and also if i remove battery nuvi won't turn On
- if i connect nuvi in car in holder and connect it to car power nuvi won't turn on but in speaker i can here every 2 second " tik, tik " sound but screen is blank no back light.
- if i take full charged battery from nuvi 3790 and add it in nuvi 3490, nuvi turn on normaly and work like he must, but if i connect cable to nuvi, nuvi won't charge.
So i think that something don't work on motherboard that regulate power from micro usb and from car holder conntact ( i clean contacts )
Anybody know what chip is on board for power regulation?
I will try to change it, but i don't know which chip is broken.
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