Help with LCD cable and reassembly - EVO 4G Q&A, Help & Troubleshooting

I replaced the cracked digitizer on my phone and when done the LCD which worked fine before, is black- the backlight works and it turns on and works fine but there's no image on the LCD. I'm guessing the issue is with the connector to the motherboard and/or the trace/lead which connects the motherboard to the LCD. I've ordered a new LCD (it's the wide connector sort) on the hope that the issue is some damage I did to the LCD lead rather than the motherboard. Odd as the connector when in no problems and taking it out and reinserting had no effect (LCD still black).
Any hints on making good the ribbon connectors connection to the motherboard? I don't want to mess this up again...

Related

Damaged parts in my prophet

I previously bought a used prophet.
It was working fine when suddenly it randomly wouldn't take any touch command on the screen (when i click with stylus nothing happens)
I opened it trying to fix it, found out the flat cable between the board and the screen was previously damaged and soldered.
Now i ended up with a damaged flat cable and a damaged battery contacts part (the part that has the battery contacts on the board) which broke off.
Do you guys think I can find these parts? and is the flat cable a replaceable part or do i have to change the whole screen?
Any suggestion is most appreciated
Fuseless said:
I previously bought a used prophet.
It was working fine when suddenly it randomly wouldn't take any touch command on the screen (when i click with stylus nothing happens)
I opened it trying to fix it, found out the flat cable between the board and the screen was previously damaged and soldered.
Now i ended up with a damaged flat cable and a damaged battery contacts part (the part that has the battery contacts on the board) which broke off.
Do you guys think I can find these parts? and is the flat cable a replaceable part or do i have to change the whole screen?
Any suggestion is most appreciated
Click to expand...
Click to collapse
You can get the flat cable separately (no need to change the LCD if it is still working).
The battery contact on the PCB will be a problem. How handy are you with a soldering iron?
PM me for more details.

PCB Connector Replacement

A few month's ago I'd ordered a LCD screen replacement for my incredible, and so when I got back from work o immediately took out the LCD from the package and started taking out my old broken. For me it was my first time experience replacing an LCD phone screen, anyways back to what I was going to say was when I unplugged the connector for the screen and the motherboard itself, after attempt to plug the connectors back together; the display connector plugged in perfect while the connector for the motherboard didn't do so well. The white piece that covers the PCB Connector, it tears a little bit off and I'd tried to power on the phone, meanwhile it didn't I tried again and things got worst. So I search online for a PCB Connector and see one, so I decided to and try to rip off the PCB Connector and plan to order the PCB Connector. So the part to attempt ripping off the PCB Connector didn't go so well, and stop there before things got worst. Any suggestions how I can replace that? I can't just leave my phone in my room and have to cover in dust. I need my phone back, how can I fix these? I know this thread seems long but I tries but it details for you guys.

[Q] Screen Digitizer not Responding?

My Xperia Play flex cable broke a month or two ago, and I didn't feel bothered to fix it. Everything was working before it broke.I left it disassembled, and each part in an anti-static bag in bubble-wrapped packaging. I recently bought a new flex cable off of eBay, and installed it into my XPlay. Everything was working fine with the exception of my touch screen. I remember that the touch screen was working flawlessly before i had replaced the flex cable.
Is there any way to check if the new flex cable is just malfunctioning or the digitizer is actually broken? (or could it just be a software issue?)
RoboticBuddy said:
My Xperia Play flex cable broke a month or two ago, and I didn't feel bothered to fix it. Everything was working before it broke.I left it disassembled, and each part in an anti-static bag in bubble-wrapped packaging. I recently bought a new flex cable off of eBay, and installed it into my XPlay. Everything was working fine with the exception of my touch screen. I remember that the touch screen was working flawlessly before i had replaced the flex cable.
Is there any way to check if the new flex cable is just malfunctioning or the digitizer is actually broken? (or could it just be a software issue?)
Click to expand...
Click to collapse
have you also checked if the slider flex (it manages digitizer, physical buttons, and LCD converge) is damaged...
Sorry for the off topic, but can you link me to where you bought your flex?
I'm stocking up just in case mine breaks again.
If it's possible, try flashing a stock FTF. Then there's also a case of old and new version flex cables, as described here-
http://forum.xda-developers.com/showthread.php?t=2224237
Regards.

Replaced touchscreen doesn't work

Hi,
my Tablet fell to the floor and broke the lcd and also the digitizer. I bought an assembly replacement (lcd+digitizer) and replace it. I connected all, but when I powered on the tablet, the display works but the touchscreen doesn't. I tried many times to unplug and replug the flat cable of the digitizer but it doesn't work.
I found this thread on another forum , that talks about a similar problem on another Asus device. I think it could be related because at some point there was burning smell, but now I don't know what to do. Can somebody help?
Thanks

HTC 10 Fpc connector

Hi, I've a HTC 10 that I changed its battery because the previous one got swollen and cause the screen to break and I haven't tried it till I got a replacement battery.
When I've plugged the new battery I tried testing the phone it does turn on but a black screen and the tactile works normally, After some diagnosis on the motherboard I've noticed that the fpc connector is broken and one of the upper pins was ripped.
Is the damage on the fpc connector causing the screen to stay black or should I just get a new screen replacement?
or can I make contact between the pin and the screen ribbon without changing the fpc connector?
Looking forward to hear your suggestions.

Categories

Resources