Robbie

Try doing a hard reset of the phone. Do a back up of your data first.

There are a few reasons this could be happening but these are the main ones 1 - Bad connection for the lcd when you put it in (try unclipping and putting them back in) 2- You have pinched the ribbon cable putting it in ( with the screen plugged in and the screen on move it slowly back and forth in the air and see if the screen comes good) 3- You put the screws the hold the cover on the lcd/touch/sensors connectors in the wrong order and possible damaged the motherboard 4 - The lcd ribbon / lcd itself is bad.,

If it is brand new, I would be taking it back for a replacement, as there are a few issues that could be causing this, but you would be better off getting it replaced then going through the repairs.

Try going to settings - general - applications manager - all - tap "Google Playstore", force stop and clear cache, then reset your phone and see if that helps.

First get a flat head screwdriver and give it a couple of taps with a hammer and see if you can undo it that way If you are going to use the dremel just use it to cut a small grove in the head for a flat screwdriver instead of breaking the screw with it

Get a fine sewing pin and put a little hook on the end (about 2mm hook) get the hook in behind the card and gently tug. You may have to use a second pin without hook to guide the card up or down.

Use the tear down guide and use a soft brush to go over all connections and other metal parts (such as mounting plates ect.) with isopropyl alcohol. Also dip the logic board in it, brush softly and let all parts dry. Reassemble it with a new battery and hope you didn't short it. With any water damaged device you should do this, and I would have suggested leaving it in the rice for a week, though something like silica would have been better.

Have you tried the batteries in another laptop? It sounds to me like there is a smd fuse gone between the motherboard and where the battery itself charges from most likely it shorted in the water and blew. My only recommendation would be to try another charger port in the laptop though I honestly don't think it will help. EDIT: Mayer might have a better idea then I do.

Ebay for the port and if you read the guide properly it will tell you to follow the steps in reverse to reassemble therefore putting a new port back in.

If you can't afford to repair the disk drive in the laptop, try getting an external drive. You can pick up a usb dvd drive now for around $20 online. The other thing you can do depending on the copyright laws on where you live is to find a torrent of your game as some places allow you to have a back up copy of the game as long as you are the proven owner.