Nexus 4 Wireless Charger Teardown

Nexus 4 Wireless Charger Teardown

I recently purchased a Nexus 4 and the Nexus 4 wireless charger. In typical hacker style I used it for a few days and then decided to make it better. The wireless charger works quite well, though it is a bit slow to charge. My only gripe is that the phone is held on the charger at a 30 or so degree angle with a sticky rubber pad, and that if either are dirty it slowly slips down misaligning the coils and stopping the charge. This being the case I decided to tear the inductive charger apart and put it in my own casing. Looking around for a teardown I was unable to find one so I’ve made my own.
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Examining the unit there are no visible screws or easy pry points. After some poking and prying I found four screws under the rubber pad on the front of the unit. Attempting to unscrew the four screws proved dfruitless and it was much easier to drill them out.
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When drilling out the screws be careful as they are surrounded by a PCB, though it is only a ground plane and hitting it shouldnt do any noticible damage to the charging abilities. After removing the screws you will need a plastic spudger to pry off the front face and expose the coil and PCB.
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Once the pcb is visible gently pull outward and swing it to the right. It is attached by a few wires to the micro-usb port on the back of the unit.
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After moving the front PCB and coil there is a single screw holding the micro-usb port in place, un-screw it and you’re done.
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