I have 2 faulty unit of 255W,
Faulty Nuvi Unit A is White screen + no longer get into preboot mode, the LCD screen & case all in mint condition,
Faulty Nuvi Unit B is unable to acquire satellites but it can be get into preboot mode.
If I replace Unit A with SanDisk iNAND memory chip from unit B,
Can Unit A get into Preboot mode and without White screen problem ?
if yes, after I desoldering, reballing and soldering the Chip, what should I do next ?