Rainbow colors when hardly pressed the screen. - Galaxy Tab Pro 12.2, 10.1, 8.4 Q&A, Help & Trouble

I popped of my tab's back cover to remove the battery so it will be calibrated, I did it before and it was succesful, I tried to do it again , then I noticed, a rainbow effect or whatever it is shows when I put pressure on the screen. I don't know what seems to be the problem, I didnt touch the lcd or other things but the battery and its connector/cable. Any help? I know it's not normal

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black screen

hu. i have a problem. The only thing my htc show is a black screen. the light is on, but nothing displayed. i try to enter bootloader mode but still only the black screen. can anyoane tell me what can i do? i hope is not a hardware problem...
oh, is htc tinity...
If You`re lucky it`s just a loose contact. If You can still hear the sounds from the splash screens I`m sure its nothing worse. Had this too and the fix is really easy once You`ve done it. I had to do it numerous times until I had a good solution. Look in the general trinity subforum, there`s a post on how to disassemble the phone. You have to do steps 1-5 to get the back cover off.
Then You can do an easy test:
- Put the battery back in again. I used some paper cut to size as underlay just to be sure not to accidently short anything should the battery move from its place.
- Hold the phone in such a way that You can apply light pressure on the battery so it stays connected. Now You can power on the phone.
- Apply some light pressure on top of the lcd connection cable (marked red in the disassembly guide) and see if You have a picture again.
- If this doesn`t help try to apply light pressure with a plastic or wood piece from the side where it vanishes in the front cover. In other words play a little bit with pressure direction.
If You get Your picture when applying pressure everything is fine cause all You have to do now is to put in something to polster out the back cover (or side cover, depending on where You pushed from when the screen came back alive). There is a small soft black sticker on the back cover that applies some pressure by default, use this as guidance. First I just rolled a piece of paper and positioned it there when I closed the cover. Didn`t hold for long. Finally I applied a sticker used on furnitures to protect wood floors. Same as vibration dampener stickers for loudspeakers. Just cut to size, stick on top of the old sticker or into the side housing and You`re good to go. Never had a problem with it again.
It sounds far more complicated as it is and You should really try it. I wish You it`s just a loose contact.

[Q] What do I need?

Ok, so I didn't know that, that (from my other post) was "Insurance fraud". So I decided to fix the phone myself, Insurance cancelled. Now as you may already know, I stood on my phone. I am guessing that the Digitizer is the touch panel and the screen is a the botton displaying the image.. Once the damage was done, I quickly checked if the phone was alright so I pressed the "Unlock key" and had to swipe the unlock screen to see if the phone was working, so obviously the Digitizer is working as it did change to homescreen when I swiped the screen.
As I panicked I took the battery out, and turning the phone back on hoping it will work, It did not. Some green dots and lines started apearing. Then it stopped displaying, so a black screen after the vibration when I'm turning on the phone.
I also know that the phone is still working because when I plug it into my computer Windows 7 has that little bleep..
The glass screen is not cracked but, when you look at the screen at an angle you see the some scratches (or cracks) underneath on the AMOLED..
Now, my question is, do I need a new AMOLED or a new Digitizer?
thanks for your time!
edit; I've been looking at abit of nexus one Screens/Digitizer's, they seem cheaper, so would they work with a Desire?

Rainbow marks on screen

I was wondering if anyone can help me fix a problem I've got with my tp2. Basically the device turns on and I can make phone calls and use programs fine. However I can't use the touch screen at all, the hard buttons all work, but touching the screen has no effect.
When the screen is turned off I can see a rainbow pattern on it and it moves to my touch. This could be water damage but I don't remember dropping it in water. The water mark is red on the phone and battery, so it probably is water damage.
Just wondering if anyone knows an easy fix for this. Thanks for reading
Just had exactly the same thing happen this week. At first if I turned it off and firmly pressed my thumbs up the screen (as if I was pushing the rainbow marks to the edge of the screen) I could get it to respond for a while. Then it started to get larger spots and now I can't get it to respond no matter what I do...
If the touch screen is not functional, then you'll likely need to replace the digitizer. I would suggest purchasing the LCD/digitizer combos, as they are easier to install for first timers.

[Q] on and off screen discoloration

Hi guys, I recently replaced the glass on my note 2 and the repair was successful. Everything on the phone is fully functional.
However, I notice that the phone sometimes switches to a strange discolored mode and then back to normal.
When the display is discolored, it looks like what is happening in this video:
http://youtu.be/DbytxfdBZuE
So does anyone know what the issue is? Have I damaged the ribbon cable somehow?
The LCD and digitizer seem to be unscathed. When the screen is not in "discoloration mode" the colors are crisp and clear.
Something really strange I've noticed is that sometimes the screen only discolors when I pull down the status bar. It will only be discolored for the status menu. The rest of the screen will remain fine. This does not happen all the time. Sometimes the entire screen has no discoloration at all.
I'm not sure what I've done but, any feedback is appreciated, thanks!

Top of screen unresponsive

Had my LG G3 for just over a year, dropped it a few times but nothing major - Screen/casing is in perfect condition still.
The screen has started to raise up so light bleeds out on both sides, tried to press it back down but unfortunately it springs back up. This didn't really bother me until the top part of my screen became unresponsive, I can no longer pull the notification drawer down- I've turned on the show touches in developer options and the screen doesn't pick up my touch at the top of the screen, if I put it in landscape mode the same part of the screen is unresponsive.
My device is under warranty but I'd rather find a solution myself to avoid being without a phone for a few weeks etc.
Is there anything I can do except replace the digitizer?
Curtis
Bump. Having the same exact issue & can't find any solution.
Well, mine had the same problem of the digitizer raised up... I discovered that my battery was swollen then I replaced it with a new one and it fixed that problem... No idea about unresponsiveness...

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