So I have the 1020 and am contemplating doing an internal install, is it possible...slight chance. I used the image of the coil in the nokia case found on this site (hope dtk31883 doesn't mind), scaled it and overlaid it on an image from the teardown service manual. Looks like there may be enough room under the battery compartment, but that would put the coil off center. From the teardown it looks like just removing the battery wouldn't be too bad, three sensor cables to unhook and three torex bolts. The only issue would be if needing to get under the main board to connect to the wireless charging prongs.
View attachment 54724
I have a few questions if anyone can help me out:
1. If off center will it cause issues with charging, or will the phone have to be placed at an angle, Seems like this charging coil is pretty sensitive from what I have heard?
2. In order to install it I would have to remove the connector prongs off the coil (How they did in the 925 Wireless mod video) and attach the offset connectors (right where the copper terminates, dtk31883 posted great pictures of this above) to the wireless charge terminals on the phone. I would have to flip the inductor over to do this (Compared to when in the Nokia Case because the coil will be offset to the right inside the phone and the copper terminals need to be at the center where the charge terminals are), I can probably test the current with a multimeter, but does anyone know if this will cause issues as far as incorrect current path especially if connecting to opposite prongs on the phone (when it is flipped over the right prong on the coil will connect to the left prong of the phone)?
3. Because of the camera hump on the 1020 will the charge coil be too far away from the charger when it is inside the phone? (How far is a reliable charging distant, 3mm, 5mm? )
4. How hot will this get? How hot does the nokia case get when it is on the phone? Since it is under the battery I would hope that it would be not directly touching any sensitive sensors in the area.
5. How thick is the coil, not counting the connector since that will be removed. Not sure how much "play room" there is under the battery but that would be something to see before attempting anything else.
I know it is a pretty risky operation, that may not work. I will be taking it one step at a time and if it seems like something isn't possible, project terminated. Hopefully the only thing I'll mess up is the $25 case (best case scenario) or worst case screw up the phone as well...I guess my upgrade is coming up in a month (Lumia 1820 release in April...Please?!) and my backup L900 would have to do for a bit. Any thoughts on if there are other issues/hazards/conflicts with attempting this are welcome.
Thanks