Got a new project...need suggestions/help.

[Tullphan]

OK...so I got me a 1520.3 for a darn good price, although it has a cracked screen.
I happen to have a 1520.2 with a good screen.
I'd like to swap screens with the 2 & dump the 1520.2. From what I gather on YouTube I need to do the following steps:

1. Remove T-2 screw after removing SIM & SD Card tray.
2. Using pry tool, work around perimeter of phone until rear cover is removed.
3. Remove black sticker after heating w/blow dryer.
4. Remove T-5 screw holding cover over battery terminal using curved tweezers.
5. Remove battery using blow dryer.
6. Remove 2 coaxial connections.
7. Slide protective plate & 2 connectors under it.
8. Remove 2 more T-5 screws holding motherboard.
9. Reassemble in revers order.

Does that sound about right? Basically swapping the motherboards? What about the Qi charging...is that another connector I have to worry about? Do I really need to remove the battery?
Thanks in advance.

 

[RumoredNow]

Reach out to gordonfink via PM. He does just this type of stuff all the time.

 

[gordonfink]

Sounds about like it. I'm not sure if everything is there, but pretty close.

If you are just swapping boards (which really is what you are doing), I don't think you have to remove the batteries.

The coax connections can be tough - make sure you don't pull the one off the board.

I think you about have it though.

 

[Tullphan]

Is just swapping boards all I need to be doing?
Is there a Qi cable that plugs into the motherboard?

 

[gordonfink]

I forgot about Qi. You'd have to switch the cover as well. You should be able to do the board and the back plastic housing.

To be honest, I've never had a 1520.3, so I'm not exactly sure how the qi connects. On some models, there's a plug (like 920) and some it's just via contacts built onto the battery cover that make contact with the board (Icon, 930, 830).

I would think the motherboard and plastic housing swap would do it - still no need to undo the battery.

 

[Tullphan]

OK...so I got the phones switched out.
Now, when I try to turn the donor phone on, the only thing that happens is the capacitive lights blink on & off at random.
The one I did the motherboard swap isn't fairing as well. Nothing happens when I push the power button.
I've read after a procedure like this, the battery needs fully charged again. Could this be the case?
Did I screw something up?

 

[Tullphan]

Well, it seems I did screw something up.
I guess while removing the cover, I sliced one of the cables for the screen in half.
How can I tell if my motherboard is dead?
I took the charging mechanisms off both phones, took both motherboards off, then connected the charging mechanism & the battery to both motherboards. One motherboard was recognized by the PC & one wasn't. Both batteries had a charge.
Please help!