[Q] Digitizer is cracked, unsure if I need to replace the LCD as well. - Transformer TF300T Q&A, Help & Troubleshooting

The person who had this device, gave it to me, telling me I could have it but that it had display issues. The display would intermittently cut out. He tried showing me how he would get it to come back on was by, flexing the device... He showed me a couple of times and I thought, to myself, I may be able to fix this. Then on one of the times, he must have flexed it too much because it cracked top to bottom. While it was working, I noticed it did display the desktop fully, leading me to believe that the LCD ribbon may have become unplugged. I was unable to find any information on replacing the LCD for the TF300T on YouTube, so where is it?
Also, the previous owner opened the device and lost the power button, so he would use a toothpick to turn it on. Is there a cheaper option than $11 USD on Ebay?

Related

[Q] Problem with Screen?

I've got a transformer, and the screen doesn't appear to be working. My boyfriend bought it the first day it came out, dropped it, was able to play with it a bit. The battery died and he set it to charge, and after that the screen wouldn't work. The screen itself is fine, it just isn't displaying anything (He can't take it back for a warranty repair, because he threw out the receipt, that's why he threw it to me to look at).
When you plug it into a computer, the computer recognizes it and you can browse the files on it. When you use the hdmi cable to plug it into the tv you can see the screen of the tablet on the tv and you can use it, so it's not anything wrong with inside workings of the tablet itself. I took it apart and everything looked alright on the inside to me, nothing rattling around, and all the connections appeared to be connected tightly. I was able to see the slide to unlock symbol on the screen by shining a flash light directly on it while the unit was on, but it was really faint and hard to see.
Does anyone know what the problem could be? In a normal laptop I would say it's the inverter, but I'm not really sure if tablets use technology like that. I'm a bit at a loss here for what the problem could be and how to fix it.
Pretty close i would say its the digitizer though you will need to rma it to get it fixed
Screens break in many different ways, just because there is no crack or leaking LCD look to it doesn't mean its fine
I would place my bets on the screen being damaged, although the board could have cracked or a solder joint could have come lose or a tiny tear in the ribbon cable
Screen is the most fragile though
I had the same problem, and after opening the TF everything looked fine too. It was not. What I did was to unplug all the cables and plug them all again. Problem solved.
Probably the screen cable got a little loose after the drop.
Good luck.

[Q] replacement LCD not turning on.

Hi, I have a droid 2 global, it belongs to my friend. She dropped it and this screwed up her touch functions. The screen was turning on but she was not able to get any feedback when she touched anything on the screen. I told her i'd try and fix it for her, first thing i did was ordered a new digitizer thinking this was the problem, unfortunately it was not. Even with the new digitizer i couldnt slide to unlock or feel any haptic feedback. I reopened the phone and looked for another possibility to the problem, i found a little tear in the flex cable connected to the digitizer, lcd and keyboard, somehow in the process of removing everything i think i may have ripped it. I ordered a new one of those, put it all back to together and this time the screen didnt turn on, however when i touched, it responded by vibrating. So that solved the previous problem. But now i have a new problem, the screen just stays pitch black. I was reading around and some forums said i may have short circuited the lcd through ESD. so i ordered another lcd, i put a new one in thinking this would fix everything, but still the screen stays black. Im resending the lcd back and gonna get a replacement, hopefully the one i got was just faulty. Does anyone know if it could be something else thats causing the black screen?

[Q]Tablet not turning on after digitizer replacement

So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
zaner123 said:
So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
Click to expand...
Click to collapse
Of course you can resell the tab in its current state. Quickly or slowly depending on the asking price. But before doing that, you should check one more time. The fastest way is plug it to a TV monitor via the micro HDMI port. If it comes on, at least you know the system is working except for the video. Past that, there can only be two possibilities. (1) Bad lcd: something might have happened when you pried it off the broken digitizer; and/or (2) the video cable is bad, or improperly connected - by that, I mean you need to make sure it fits all the way in at both ends (mainboard & LCD). Check connection with a magnifying glass, You won't believe how many times people forget to reconnect the cable or connect it wrong. Lastly, if you did turn the service switch off, make sure it's turned on again. Good luck.
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
zaner123 said:
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
Click to expand...
Click to collapse
Here's the link to the relevant thread. Search for the necessary information within it. The cable that goes from LCD to mainboard is labeled: "MB" end goes to mainboard. The service switch is located at the top of the mainboard looking from the back, to the left of the power button ribbon (top right corner of tab), and is labeled "on"/"off". You should turn it off before doing anything. It cuts off all current to the boards and prevents accidental shortcircuitings. If you don't and mess around with the digitizer board, you might burn a fuse that controls the dig's operations. But this is for later. Go to the thread and browse it.

Grey Static/Snow on LCD

Hi,
I have a clients phone, They dropped it into water. Phone LCD worked fine, touch screen did not function correctly, and the bottom soft buttons were activating. making the phone unusable.
I orded a new screen, and decided to test it, before installing it. After removing the mid frame, I plugged in the LCD to find a strange grey snow pattern. I disconnected the battery, reseated and checked the LCD cable. I got the same pattern,
I was positive the new LCD is faulty, but not 100% sure now.
I reconnected the old screen and have a similar but not identical pattern. I can understand breaking the old LCD while taking it apart, or getting a faulty new LCD, just unlikely for both to happen.
Are there any other connections I should check. What do you guys think?

Moto G5. An input line of keys are not selectable on the phone. All other keys work.

Hi
My son recently gave me his old Moto G5 phone. The phones charging board was broken and the screen was very badly cracked all over (it had a screen protector) and was generally not in the best of condition.
My son had bought a replacement screen several months ago, but had not got around to trying it. The battery was also totally flat.
So he gave me the phone and I installed a new charging board and the new screen and charged the battery.
Unfortunately an area of the new screen does not respond to key input . This area is a line of keys towards the bottom of the screen (not the bottom though).
My son says that he had not noticed any such problem when he last used it (he kept using it until the battery went flat; he then purchased a new phone).
I've tried doing a factory reset. I've removed and re-connected the display cable onto the main board and these have not fixed the problem .
I am not sure what to try next :crying::crying:. I could purchase yet another screen in case this new screen has a fault (probably unlikely?).
Presumably it could be the main board (digitizer?)...How can I find that out?
Maybe I have done something wrong on the install, but seems odd that the rest of the screen (as far as I can tell) works ok. What might I have done to have caused this problem?
Has anybody got any useful tips as to what I could try. Seems a waist of a good phone, not to try and repair it.
Thanks for reading this.

Categories

Resources