Remove tight rear cover to expose six screws, shown in yellow, the middle right one had a protective 's' security sticker over it.
Don't try and separate the plastics, the separation is performed at the screen junction with the black plastic. The screen is plastic but heavy and transparent. Slide a finger nail in somewhere and slowly work it around, hearing a click as each catch pops.
You are greeted with the backs of two PCBs. I've tip-exed out my identifying codes. The bottom PCB can be prised off but is connected at its top edge by some flat cable connector I didn't proceed to investigate further, there was little electronics of interest there and the PCB itself is paper thin.
The top PCB is much thicker and held in place by 2 very loose and obvious screws and three cable connectors.
This shows the connectors undone. Use soft plastic like a toothpick. The top one has a catch opposite the cable that flicks up. The aerial connector at the bottom left is removed with by pulling with your finger nails. The bottom right one lifts straight up. You will need to lever the PCB out of its housing. A plastic blade would be ideal, again the toothpick and metal blade would do in a pinch.
After breaking the friction with the casing movement stops after a few mm. Their is no connector for the volume rocker. The volume rocker is flexible and must be prised from the casing using a sharp knife to break the adhesive. A few mm more and some tape is found to connect a heatsink / shield on the opposite face to the SIM connectors to another "silver box" remaining with the screen part of the phone. If I had a cracked screen I should have looked further. It's very sticky tape and I removed more than I would have liked. There is one more hidden connection. Use a toothpick to prise it from the PCB as you pull it up. The connection is to the flat cable running along the battery compartment to the mic and screen connections.
This is the new face the PCB reveals, when almost completely detached (vestiges of tape remain).
On the other side of the tape are more markings.
And finally the chips, in case we're compiling our own Android and want more details.
The MediaTek markings were obscured by a pink heat sink sponge thing and this made photographing difficult. I should have tried harder to read but this is my best photo, and with reference to others I believe the markings are (lines are duplicated where there is doubt):
| MEDIATEK |
|---|
| ARM
APM |
| MT6589 W
MT6589 WVK MT6589 WMK |
| 1309-ATA
1309-ATAH |
| DTNFU?29
DTNFU |
As usual assembly is the reverse of removal. I used a smooth plasic spatula, yeah, a toothpick, to help reattach most of the very sticky silver tape. I also wedged it under the hidden connector to increase its reactive force as I pressed the PCB down on to it.
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