[Q] Screen replacement - Defy Q&A, Help & Troubleshooting

I recently bought a new screen glass touch digitizer for my Defy (because the old one was destroyed) and I try to replace it.
I follow the instructions and i think I have connected with success the new touch digitizer with the motherboard, but when I turn on the phone it doesn't working. No touch response. It seems like it isn't connected and is very strange :S
I wanted to ask if this problem might be caused becase I am on CM10. If i flash stock sbf would be this fix the problem?
Looking for some suggestions or ideas how to fix this please.
Thank you in advance

old digitalizer works ? (at least one part:silly
Maybe the new digitalizer is broken ...

lexer98 said:
old digitalizer works ? (at least one part:silly
Maybe the new digitalizer is broken ...
Click to expand...
Click to collapse
Yes, the old one is "working"... how can I test if the new one is broken? I can't see anything strange on it :s

I also had to replace mine. Also in CM10 and it works. The screen is a capacitive screen. This means that capacity across the contacts changes as you touch it so you can in theory measure it with a capacity tester (e.g. a multimeter). Problem is practice. You'd need to find a connector to attach your multimeter. Quite impossible. As the screen cost me just €5 I'd suggest go and buy another one and see if that works.
Sent from my MB526 using xda app-developers app

Related

Hd2 screen replacement, now digitizer not working?!?!

For a bit time ago i accidently broke my lcd display on my hd2, and because htc could not fix this cheap i decided to try myselvf.
first i ordered a lcd and a new digitizer and soldered them together and fixed everything just like in the video and the lcd started to work, but now my touch pad does'n work! I can't do anything
Then i took the screen out and ordered a new one from ebay which was assembled from the shop.
And same resault
what could be the problem? I have a danish hd2 and i have tried to update the firmware after i replaced the screen and digitizer and still no respond
what could be the problem?
hey, did u fix the digitizer yet. i had a similar problem. the volume buttons got stuck in and i decided to open it and fix it. right after closing it back the digitizer stopped functioning...............please let me know asap if u managed to fix urs and how u did it thanks
Same problem here
I've got the exact same problem. Replaced LCD and digitizer but it is still not working. Additionally the screen is a little yellowish. Anyone knows if this might be related and any idea who to possibly fix this?
Hi, I have exactly the same problems, even tried with 2 fresh new digitizers. Could it be that they are extremely sensitive on the inside? Or is it some glitch somewhere?
Extremely frustrating!
Sent from my HTC HD2 using XDA App
well mine is in the scrapped now. when my digitizer arrives and i sort things out i will get back to you
Hi, I bought HD2 with broken digitizer, so after it came to me I immediately buy new digitizer, didn't look for the cheapert but once again I resolve myself to never buy things for china digitizer doesn't work so I need to new one from USA, send it to my friend and he repair it within day, now everything work... and yes digitizer are very sensitive

Touch screen not working

Hey guys, I have been so much frustrated about my htc topaz....till now it is working perfectly. Since yesterday all of a sudden touch screen stops working...with ballooning effect on screen ...previously ballooning effect was noticed before 3-4 days,but i did not pay attention on it as touch screen working at that time..
What may be the probable cause is it digitizer or lcd screen gone?
I have uploaded the pictures also..
That's the Chinese Diamond2?
If so I have the same problem with a Chinese phone... There is a part of the screen that's not working fine (like a balloon on the left side of the screen). I have to press really hard and press more to the side than it should be
I've already considered in opening the phone to try to solve the problem.
Does anyone already opened his phone with success? Any pictures available to help the task?
indresh88, sorry to use your topic but I think we both need the same...
I had the same problem, is very usual in this phone. the tecnical changed the screen.
luisitron said:
I had the same problem, is very usual in this phone. the tecnical changed the screen.
Click to expand...
Click to collapse
The problem is that my phone came from China... So I would have to send it there, and that's not an option...
rvrosa said:
That's the Chinese Diamond2?
If so I have the same problem with a Chinese phone... There is a part of the screen that's not working fine (like a balloon on the left side of the screen). I have to press really hard and press more to the side than it should be
I've already considered in opening the phone to try to solve the problem.
Does anyone already opened his phone with success? Any pictures available to help the task?
indresh88, sorry to use your topic but I think we both need the same...
Click to expand...
Click to collapse
no definately not...it's factory unlocked asian version...also it is t5353 and official stock rom.
by the way how can we differentiate between chinese and factory unlock phone?
have you solve your problem?
Hi, use some standard scotch tape or tesa film. Stick it over the affected area and peel the tape off. This should unstick the digitizer again, it did the job for me quite often...
Cheers
badari said:
Hi, use some standard scotch tape or tesa film. Stick it over the affected area and peel the tape off. This should unstick the digitizer again, it did the job for me quite often...
Cheers
Click to expand...
Click to collapse
Please explain that better? I only have to stick some scotch tape on the screen and peel it off?? I have a screen protector, so it's better to take it?
Thanks
indresh88 said:
no definately not...it's factory unlocked asian version...also it is t5353 and official stock rom.
by the way how can we differentiate between chinese and factory unlock phone?
have you solve your problem?
Click to expand...
Click to collapse
I have the T5388i dual sim.
I'm no expert on those phones, but I think an easy way to know if the phone is HTC or Chinese version is the front camera side (on HTC is on the right and on the replica is on the left)
Other simple way is if it's dual sim than it's not from HTC.
If I'm telling some mistakes please someone correct me.
Concerning the problem... it's not solved
rvrosa said:
I have the T5388i dual sim.
I'm no expert on those phones, but I think an easy way to know if the phone is HTC or Chinese version is the front camera side (on HTC is on the right and on the replica is on the left)
Other simple way is if it's dual sim than it's not from HTC.
If I'm telling some mistakes please someone correct me.
Concerning the problem... it's not solved
Click to expand...
Click to collapse
Well according to my research...If you have standard htc phone, you have device name t5353,no dual sim,htc written on left side and front camera on right side....
badari said:
Hi, use some standard scotch tape or tesa film. Stick it over the affected area and peel the tape off. This should unstick the digitizer again, it did the job for me quite often...
Cheers
Click to expand...
Click to collapse
it helped me quite good and temporery, but how to fix it permanently...?
replace the touch screen digitizer.
eBay have many of them...
I have replaced my cracked one last month.
Two fixes for the scotch tape issue
1. Always take along some scotch tape or
2. Replace the digitizer. This can be done faily easily, see some other posts.
Cheers
I've looked at ebay for the digitizer and I've found many... the question is if they work on my phone?
I have a DUAL SIM T5388i, can anyone point me the right digitizer?
I've tried the tape but didn't worked I don't know if I'm doing it right because I've noticed no diference.
Help me!
I also have this problem, It just stopped working. I was calling, 10 minutes later when i took my phone and tried to unlock it, it did nothing, when i connect my phone in windows 7 with mobile center, I installed SOTI pocket controller, to check if it was my screen, and it was because via pocketcontroller it worked good, but how do i have to replace the screen thing, and how does it work with the tape,,
Thanks
i also had the same problem. if im not mistaken it might be due to humidity ...
i might be wrong
is there any way to fix this without replacing digitizer.
by the way i have a TD2 t5353 htc original .
Workign Solution Till Now
Hello Friends,
I have TD2 mobile and today I had same issue. I was thinking it was because of the weather or some.
I remember it did happend several time before, but when I restart the device several time it does work. So I was ignoring.... But today it did not work.. looks like going toward end... So I did soft and hard reset without and that did not helped me.
So I switched off the mobile, "heated" the touch screen gently with my hand for 1 min and started the mobile again and it worked for me .
Not sure if this is a solution, but will work.
May be I will contact Service Center here in Hyderbad and see what is wrong here?
Hope this will help you all...
Thanks.
Well, I've solved the problem... changed the digitizer...
rvrosa said:
Well, I've solved the problem... changed the digitizer...
Click to expand...
Click to collapse
How much that costs you?
prabhat said:
How much that costs you?
Click to expand...
Click to collapse
Take a look at solonomi. That's the place I've bought it.
digitizer for t5388i
Hi, I want to buy digitizer for t5388i, but I didn't find it. I searched at solonomi, ebay, alibaba... Have you any ideas where to buy? Digitizer for t5388i is not same with other t5388 models. Here is picture:
imageshack.us/photo/my-images/263/digitizer2.jpg/
(sorry for incomplete link, but I don't have permision to add images or links)
Many thanks.

Help screen replacement problem!!!!

Hi guys, i followed all the indictaions on the official videos but i think i broke something! I had an HTC hd2 with a broken digitilizer but the screen worked fine. I bought a screen+digitilzer combo and replaced it but it didnt work.
The screen does not show anything (black screen) but the backlight of it is on!
I tought maybe was a problem of that lcd so i tested the original screen (that was working) and it does the same.
What could be the problem??
Please i need help
come onn, anyone ?
please guys, anyone ??
Sounds like a defective lcd to me. I'd try an RMA asap on getting another unit before your DOA warranty (if the lcd has one) runs out.
it's not the LCD. I had a working LCD but a defective digitizer, i bought the lcd+digitizer replacement and now both screens do the same , just the backlight is on. And before i change the screens the original lcd was working fine.
Could it be because the LCD is not correctly pasted into the chassis ? i really don't know what could it be the problem. The lcd is correctly connected to the mainboard. What could i broke in the process?
Thanks connexion2005 for the help anyways, is nice to see someone finally answered hehe!
zeba5 said:
it's not the LCD. I had a working LCD but a defective digitizer, i bought the lcd+digitizer replacement and now both screens do the same , just the backlight is on. And before i change the screens the original lcd was working fine.
Could it be because the LCD is not correctly pasted into the chassis ? i really don't know what could it be the problem. The lcd is correctly connected to the mainboard. What could i broke in the process?
Thanks connexion2005 for the help anyways, is nice to see someone finally answered hehe!
Click to expand...
Click to collapse
If you were not really gental with the internal parts of the phone, more presisly the ribbons that connect each part to the main board you could have cause micro cracks in the copper strips of the ribbons. Look at the closely with a magnifying. glass if possible.
today i was able to sync it literally with no idea of what i was touching. I also figured that the digitizer works , i was able it dial some numbers. The phone appears to work.
So, Backlight is on, Touch (digitizer) also works, but not showing anything on the LCD.
Could it be a mainboard problem ?? I'm trying to use logic because i don't know anything about cellphones and how do they work in terms of components.
Could it be the ribbon ? I dont think so, i have two screens and both of them do the same (backlight on but not showing anything).
I'm clueless!
Don`t panic. Calm down, watch a demolution tuturial. You probably miss smt. Good luck
But it could be a ribbon...

Some help trying to fix a Motorola Defy?

Hello, I have a Motorola Defy, that I dropped a few times, so the LCD screen got damaged with blue dots on it, I made a mistake and thought that the problem was on the touch Screen, so I purchased a replacement, installed but, it was damaged, the touch did not respond correctly, I wasn't able to type correctly among other problems.
I got a refund, then ordered a LCD screen replacement, now that I have it here, I install it, and it's broken:crying: I know, bad luck and being a rookie while trying to fix my phone, ok, I put back my old (damaged) LCD screen to use it in the meantime, and the old touch screen, but now, the old touch screen that was supposed to being working fine, it doesn't, it has the same problem as the touch screen that I bought.
Question is: the problem with the touch screen, could be related to the damaged LCD screen? or the motherboard of the phone is damaged? the phone works great, the apps, the games, everything but the touch screen and the LCD screen, but, as I said, I went back to the default touch screen after using the damaged one that I received, and it works worse I don't know what's wrong, please help me out, sorry for the long post
Please post questions in the Q&A section. Moved there.
Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app
ppero196 said:
Put it in the freezer for 1-2 hours
Sent from my MB525 using xda app-developers app
Click to expand...
Click to collapse
Is this true?
true. fix some minor dead pixel if you put in freezer for one day. but your case... im dont hope much.
Try changing LCD + Capacitive Digitizer. (after trying the freezer trick ofcourse)
Well i will tell my story, which is related to your's as well,
i had a phone with resistive touch screen and it got screwed up, that is it does not respond correctly. So, i took it to the service center and they replaced the digitizer (touch screen) saying that previous one is broken. But, luckily the new one didn't responded to any touches they make.So, they replaced it again with the old one quoting that "your phone can't be repaired". So, i took it home with me.
Later i thought to calibrate the screen but the old one is not responding any more, no matter where i press
Later i calibrate it with the help of a software for windows mobile with the help of a PC. It took me to the calibration screen, from where i calibrated it, and voila, it worked... as good as a new one :victory:
long story short,
i think when you disconnected your digitizer, phones default values/drivers got messed up and are unable to find the new or the old digitizer you connect. I suggest you to go to the service center as these screens can not be calibrated.
Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!
saman0suke1 said:
Is there NO WAY at all to recalibrate the screen from the phone itself? or using an application? the delicalibration might be the problem....I'd like to fix it myself :/ thanks for the tip, never heard about it before!!
Click to expand...
Click to collapse
Did you change the LCD and the Digitizer (both of em) again ?
dark_prince said:
Did you change the LCD and the Digitizer (both of em) again ?
Click to expand...
Click to collapse
I replaced my original digitizer screen for the one I ordered it, it gave me problems, so I went back to the original one, which was working fine, and now it's not fully responding, that's why I'm assuming is something calibration related, thanks!
help
my search button back light is not glowing ..i saw it is also not glowing in recovery...any help

Touch screen going wild when charging

Hello guys, my touchscreen going crazy whenever I'm charging the phone.
Doesn't receive input half of the time. No matter which charger / rom / kernel I try with, problem still there.
The weird thing is, it doesn't happens whenever I'm in TWRP.
Anybody knows the problem? making me charge the phone only at night...
gal_b said:
Hello guys, my touchscreen going crazy whenever I'm charging the phone.
Doesn't receive input half of the time. No matter which charger / rom / kernel I try with, problem still there.
The weird thing is, it doesn't happens whenever I'm in TWRP.
Anybody knows the problem? making me charge the phone only at night...
Click to expand...
Click to collapse
I'm betting that your digitizer is going bad - mine did similar things, then parts of the touch screen stopped responding - had to reset the touch screen several times (cat /sys/devices/virtual/input/lge_touch/f54 seemed to work for some duration of time). I eventually (as of yesterday) replaced the LCD/digitizer and it now works correctly (apart from the fact that I screwed up the new screen, that is).
I would try to open back cover and attach digitizer connector cable properly (next to Jack connector). This worked for me, when I had same problem
Sent from my LG-D802 using XDA Free mobile app
robotzki said:
I would try to open back cover and attach digitizer connector cable properly (next to Jack connector). This worked for me, when I had same problem
Sent from my LG-D802 using XDA Free mobile app
Click to expand...
Click to collapse
Do you have a tutorial? how does it looks? (the digitzer connector). If not, can you shoot one for me? it would be great, because i'm not an expert
gal_b said:
Do you have a tutorial? how does it looks? (the digitzer connector). If not, can you shoot one for me? it would be great, because i'm not an expert
Click to expand...
Click to collapse
Ive attached the image. on the black shield, i added extra tape to hold digitizer connector in place. Firstly make sure that connector is pressed in place properly.
I also glued down the left end of mainboard, so it couldnt wiggle anymore. Hope this helps... Id did for me!
well..... tried it... didn't help :/ but... here's one thing that looks weird to me: when i'm on jb - no problems. when i'm up to kitkat - the problem is back
WTF is GOING ON?!? also knock-on is gone now... brb throwing my phone on the wall
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