The Droid Razr is an Android-based, 4G LTE-capable smartphone designed by Motorola.

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Overvoltage at 12V and Died Razr

Heedlessly I connected a car charger wrong and my razr took a power surge at 12v. Now the phone will not turn on and will not charge, it seems dead. What can I do to solve this problem?

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You will have to open it up and check for some obvious damage. Look for some burned, charred or missing components first.

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I have just opened it, I compared it with another razr XT910 and seems thar are identical.

I exchanged the motherboard and I have found that it is the cause of damage.

Unfortunately, the chip on the motherboard are covered with metal parts, but I don't know how to remove for exploring the damage circuit.

Meanwhile, thank you so much for the help you're giving me.

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I would check for an onboard fuse. use a magnifying glass and look around the charger area for a F1, F0, etc.. Can you post clear pics of the mainboard? Both Sides

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Maurizio Luciani will be eternally grateful.
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