[ONE General] vantt1:
Re-assembly

Now might be a good time to fix your grounding issues! If your touch issues arose from the increase of the device's temperature, you may have to cover the whole metallic back of the LCD with tape too.

Note: if the screen still has issues even when isolated as below, then the screen itself may be faulty.

To re-assemble it, it pretty much is just going through the steps in reverse order. When the phone is fully disassembled and nothing is adhered into place, now's the time to test your replacement screen assembly. You can do so by fitting the screen into the frame without using any adhesive, connect it to the logic board along with the battery and turn it on, or if you're lazy like me, just connect it up like this:

It is not recommended to keep the phone powered on for any longer than a few minutes like this, because the logic board effectively has no heatsink.

Step 1: As mentioned before, the old glue can no longer be reused, so we'll have to apply some adhesive tape, cut by hand. If this were a mainstream phone, it'd be pretty easy to get machine-cut 3M tape that fits the bezel perfectly, to ensure an optimal fit.

Sadly, this isn't the case, so we'll have to resort to rolls of that tape of various widths. You can buy these from eBay by searching "3M double sided repair tape".

Update: pre-cut tape is now an option! You can get it on AliExpress .

I personally used 1 mm for the side bezels and 3 mm for the top and bottom, but experiment to obtain maximum coverage. Make sure you don't cover any sensor holes. Usually, this tape in roll form isn't adequately thick, so double up and use two layers.

IMPORTANT: Check that there aren't remnants of broken glass on the bezel when you install the screen or tape. They can cause the screen to easily break.

Also check that you've moved the earpiece grille and capacitive key backlight pads (if the new screen doesn't have them) over from the old screen to the new one. And if you really want to, move the foam ring surrounding the front camera hole in the glass to. It prevents light from the LCD's backlight from leaking into view.

Step 2: Thread the flexes through their respective holes, and fit the screen into the chassis. Lightly heat the bezels (not too much; you don't want to damage the new LCD) to soften the adhesive, and place the screen face down on a clean, flat surface. Push down on the chassis with moderate force.

Step 3: Replace the rubber plastic block that sits in the digitizer flex slot.

Step 4: Make sure the proximity sensor, light sensor and front camera holes are clean and aren't covered by tape.

Step 5: If they were removed during the disassembly, replace the speaker/antenna/vibrate motor flex, then the USB port flex. Watch out for that weird bit that sticks out on the left ide of the speaker flex. Don't forget to reconnect the cellular antenna down the bottom.

Step 6: Put the earpiece back into the chassis. It should be oriented such that the two contact points are next to the digitizer flex.

Step 7: Reconnect the cellular antenna at the logic board. Do not push hardly unless you're absolutely sure it's aligned correctly.

Step 8: Tuck the antenna back into its groove.

Step 9: When reseating the logic board, ensure that the flex connectors stay clear from it. You don't want to have them end up underneath the logic board. Check that the board is flush with the screw holes.

Step 10: Make sure the front camera is also sitting flush. If it isn't, the camera cover may not fit, and the front camera will not be centered.

Step 11: Reconnect all the flex cables, and replace the logic board screw.

Step 12: Stick the button flexes back down onto the chassis.

Step 13: Straighten all the flex cables by lifting them up and stretching them towards the logic board, the stick them back down.

Step 14: Put the battery back in, then reconnect the flex.

Step 15: Replace the camera cover and screw it back into place.

Step 15b: Replace the tamper seal/water damage indicator (you won't get warranty either way, but might as well)

Step 16: Put the speaker assembly back in, and screw it into place.

Step 17: Replace all the rubber screw caps.

Step 18: Replace the StyleSwap cover, and put the SIM tray (with card) back in. Although the tray fits either way (like in Sony's Xperia Z series phones), the side with the gold contacts should face up when the phone faces down. Inserting it upside down will result in the phone not reading the SIM card, and risk damage to the internal SIM reader. LG, HTC and Apple's phones' SIM trays are designed to only fit one-way.

Step 19: Turn the phone on, and enjoy the results of your efforts!