Hi,
Could you please help me on how can we fix broken touchscreens? I'm using Tinji (Tianji i9300 s3 clone) mt6577 phone. My Einstien brain managed to cut the flex cable to touchscreen and its now not responding at all. I'm using Tinji i9300 mt6577 chinese phone.
Initially, the screen did not respond on the right and left wing where I was struggling to even unlock it.. Thought of opening the cell and reassembling it myself looking at various forums feedbacks mentioned here. I opened the cell apart but before I could realize that the flex connection touchscreen, I already had broken it and now the touchscreen does not respond at all. Dead as stone!!
Is there a way to fix it. Request your help plz. Thanks.
buy a new one. those digitizers are not that expensive and getting a new one is easier than soldering a flex cable. trust me, i tried it myself on a cannoo.
Chrizzly92 said:
buy a new one. those digitizers are not that expensive and getting a new one is easier than soldering a flex cable. trust me, i tried it myself on a cannoo.
Click to expand...
Click to collapse
Thanks Chrizz,
Phew!! atleast I have someone hearing me on these forums.. Thanks a ton for your reply..
Request you to please guide me from where do we get these digitizers? are they screen specific as in 4.7 inch or CPU specific as in mt6577 specific? Or will normal digitizer work? Thanks.
Help
Good evening,
I have same problem with my i9300 Tianji, you can tell how you solved your problem.
If you bought a touch screen where you purchased
Best Regards
Raul Martins.
Hi everyone.
So i tried to replace the cracked screen in a Moto G (I just replaced the display+digitizer+glass module). After the reassembly everything worked except for the digitizer (it worked before when i tested it). I tried to reconnect the digitizer connector (the tiny one which connects the digitizer controller to the display connector ) multiple times, but nothing worked. Has anyone faced a similar problem before?
Ening said:
Hi everyone.
So i tried to replace the cracked screen in a Moto G (I just replaced the display+digitizer+glass module). After the reassembly everything worked except for the digitizer (it worked before when i tested it). I tried to reconnect the digitizer connector (the tiny one which connects the digitizer controller to the display connector ) multiple times, but nothing worked. Has anyone faced a similar problem before?
Click to expand...
Click to collapse
Hi, I have exactly the same problem.
In my case, it's my second screen, so I've already eliminated the screen+digitizer and the cable connector like the origin of the problem.
Has anyone any idea?
Thanks!
PS: Ening, did you get to solve your issue?
much sad
agnobi said:
Hi, I have exactly the same problem.
In my case, it's my second screen, so I've already eliminated the screen+digitizer and the cable connector like the origin of the problem.
Has anyone any idea?
Thanks!
PS: Ening, did you get to solve your issue?
Click to expand...
Click to collapse
Bad news. My digitizer cable is damaged. On both original phone and the donor. I was not careful enough: the closer inspection showed it. I am going to order another screen or a donor phone (like a used verizon one or something) and try it again.
So the thing is that the video on etradesupply shows it wrong. You have to unstick the tape covering the digitizer cable connector, then unsnap the clicky thing, and only after that should you unplug the screen master cable (the one that goes into your PCB). Otherwise, it is very easy to damage the touchscreen controller cable (the digitizer one).
I really hope you have a different problem and there is still hope for your phone :crying:
Ening said:
Bad news. My digitizer cable is damaged. On both original phone and the donor. I was not careful enough: the closer inspection showed it. I am going to order another screen or a donor phone (like a used verizon one or something) and try it again.
So the thing is that the video on etradesupply shows it wrong. You have to unstick the tape covering the digitizer cable connector, then unsnap the clicky thing, and only after that should you unplug the screen master cable (the one that goes into your PCB). Otherwise, it is very easy to damage the touchscreen controller cable (the digitizer one).
I really hope you have a different problem and there is still hope for your phone :crying:
Click to expand...
Click to collapse
Hi Ening,
How do you check the veracity of the cable connector failure? I think I have the same problem than you, but I haven't a way to check it 100%, because I haven't anyone who can lend other screen to me, and the original screen it's now completely destroyed.
I suppose that I will have to send back the screen to the seller and ask for another.
Thanks anyway!
agnobi said:
Hi Ening,
How do you check the veracity of the cable connector failure? I think I have the same problem than you, but I haven't a way to check it 100%, because I haven't anyone who can lend other screen to me, and the original screen it's now completely destroyed.
I suppose that I will have to send back the screen to the seller and ask for another.
Thanks anyway!
Click to expand...
Click to collapse
Hi, i gave the phones to a guy in a repair shop and he looked at it through a magnifying glass
agnobi, I have exactly the same problem, but tested several digitizers and same problem
see my post here : http://forum.xda-developers.com/moto-g/help/black-screen-backlight-ok-screen-t2803431
did you solve your problem ?
Me too
The new digitizer doesn't work and now the 'old' digitizer dosn't work anymore
Everyone has found an solution ?
kyle77680 said:
Me too
The new digitizer doesn't work and now the 'old' digitizer dosn't work anymore
Everyone has found an solution ?
Click to expand...
Click to collapse
The flex cable part that connects the controller to the rest of the cable is very thin and easy to damage, you've to be very careful or you're gonna screw it (like the OP did).
ofcourse there is a slight possibility that it came defective, but you should have checked it right when it arrived. So far I haven't seen any incomparable ones, but who knows.....
liveroy said:
The flex cable part that connects the controller to the rest of the cable is very thin and easy to damage, you've to be very careful or you're gonna screw it (like the OP did).
ofcourse there is a slight possibility that it came defective, but you should have checked it right when it arrived. So far I haven't seen any incomparable ones, but who knows.....
Click to expand...
Click to collapse
I think there is something else.
On my side, the 3 digitizers (old one + 2 new) give me same result.
The I think the problem should be on the mainboard or a hardware/software blocking ... or maybe something we didn't re-assemble well
and little question : what is the role of this part (see my photo) ???
denseye said:
I think there is something else.
On my side, the 3 digitizers (old one + 2 new) give me same result.
The I think the problem should be on the mainboard or a hardware/software blocking ... or maybe something we didn't re-assemble well
and little question : what is the role of this part (see my photo) ???
Click to expand...
Click to collapse
Probably the last :>
That thin metal plate makes connections on the back of the PCB (its mounted right between the display and the PCB) and I think it connects to mass.I got no idea what it's role is (prolly its a fitting or some sort of heatspreader).I've assembled one phone without it and it worked just fine, but I've put it back afterwards, just for the sake of being complete
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
kyle77680 said:
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
Click to expand...
Click to collapse
I've replaced 9 digitizers on 9 different moto g's.None of em had any kind of these problems.This leads me to the conclusion that you've done something wrong.
The worst I had is 1 dead pixel on one of the new displays ( I'm using digitizer+display+frame assembly ).
liveroy said:
I've replaced 9 digitizers on 9 different moto g's.None of em had any kind of these problems.This leads me to the conclusion that you've done something wrong.
The worst I had is 1 dead pixel on one of the new displays ( I'm using digitizer+display+frame assembly ).
Click to expand...
Click to collapse
very interesting your experience ...
the strange thing is that we are several persons to have the same problem and the same symptoms ...:silly:
I've unsnapped the connector as they said in the video of etradesupply...
Maybe I've forgotten something.... you have followed this video ?
Edit :My screens are working except for the digitizer.
kyle77680 said:
I've unsnapped the connector as they said in the video of etradesupply...
Maybe I've forgotten something.... you have followed this video ?
Click to expand...
Click to collapse
I've followed this same video...
I don't see what I could have done wrong
liveroy : you never expected that black screen problem ?
---------- Post added at 04:25 PM ---------- Previous post was at 04:23 PM ----------
kyle77680 said:
and your digitizer works fine ?
I think also that the issue comes from the connection PCB-patch or as you said software digitizer blocking.
So I 'll try to flash a retail rom to see it .... ...... The digitizer still not working
Click to expand...
Click to collapse
I've also reflashed a stock ROM ... no change
so it's not software/firmware related ...
so it's hardware
Never, all worked the first time and afaik they are still working fine.Gotta mention that the ones I`ve used are chinise ones, but look and feel like the original, even the glass feels like gorilla glass 3, altough I don't believe that's the case :>
I have a huge scratch down my screen and the local mobile repairing guy quoted £55 to replace.. I thought this was a bit steep.. I expect him to use real gorrila glass 3 @ that price
Sent from my XT1032 using XDA Free mobile app
finally I've just fix my digitizer
It was 1 or 2 pin twisted on the right so there wasn't a contact between the PCB and the patch....
denseye I think your black screen can be fixed, you may see the pin on the left...." Bon courage " PM me if you have questions....
I've got now my earpiece which crackle but I thinks I'll not try to fix it....
Good night
You mean a pin on the pcb connector where thé LCD câble goes? (Français???)
A pin means a spindle which links the patch(LCD câble) to the PCB.There are many pins which compose thé connector.
(Yeah I'm french and i've sent you a MP.... "Dur dur le correcteur ortho ...")
Hi, I have an Iocean X7 Elite which I have had for almost 8 months now. Recently I cracked the screen ( by accident of course) and I have purchased a new one.
So.... I installed the new lcd screen myself and it works fine. Only problem is it did not come with this black connector sticker/mat that lies behind the battery. So I was unable to connect my mainboard to the speaker, mic and charging socket area of the phone. I did peel the sticker/mat off the old lcd and connect it to the new one, but to no avail it does not work.
I really need help on what this mat is called as I believe this is the issue with the phone. Any help would be appreciated.. Please feel free to ask any questions.
Thank You Very Much
Before you burn me at the stake, I know the title is vague, but I do have a few questions I need answered if possible.
First things first, I have an Alcatel Pop One Touch C7. You're probably not familiar with the phone but I don't think it actually matters in this case.
Now, I dropped my phone a couple of weeks ago, and while the screen didn't crack, it is definitely not working properly. What I think happened is that the cable connecting the display to the phone is slightly dislodged. The screen shows washed up colors and seems to lag when trying to display a new "frame", for example when I type in something and the screen slowly fades in said something. I'll post pictures as soon as I can.
I tried opening the phone, but when I unscrewed the back, I saw this sticker going from the battery slot all the way to the board.
I watched a few videos showing how to "unstick" the sticker, but I don't have a heatgun or tool that can help me do so.
My question is:
Do you think this sticker is important to the phone, or can I just rip it out or cut it?
Thanks in advance
shadyeversince said:
Before you burn me at the stake, I know the title is vague, but I do have a few questions I need answered if possible.
First things first, I have an Alcatel Pop One Touch C7. You're probably not familiar with the phone but I don't think it actually matters in this case.
Now, I dropped my phone a couple of weeks ago, and while the screen didn't crack, it is definitely not working properly. What I think happened is that the cable connecting the display to the phone is slightly dislodged. The screen shows washed up colors and seems to lag when trying to display a new "frame", for example when I type in something and the screen slowly fades in said something. I'll post pictures as soon as I can.
I tried opening the phone, but when I unscrewed the back, I saw this sticker going from the battery slot all the way to the board.
I watched a few videos showing how to "unstick" the sticker, but I don't have a heatgun or tool that can help me do so.
My question is:
Do you think this sticker is important to the phone, or can I just rip it out or cut it?
Thanks in advance
Click to expand...
Click to collapse
Hello, thanks for using XDA Assist!
Please post your question here:
http://forum.xda-developers.com/android/help
Good luck!
Thread closed.
Hey guys, I want to buy a "defective" OPO for 100$. The sellers told me that a part of the touchscreen (about 13%) is not working. He says it works every once in a while but it is really rare. I was wondering if I would be able to fix this trough a Kernel or a ROM update (he runs CM12S) or if I need to change the screen completely. The guy says he had the phone for 2 months and he hasn't try to fix it because he has an iPhone (LOL)
Thanks for your answers!
Chris
messedup kid said:
Hey guys, I want to buy a "defective" OPO for 100$. The sellers told me that a part of the touchscreen (about 13%) is not working. He says it works every once in a while but it is really rare. I was wondering if I would be able to fix this trough a Kernel or a ROM update (he runs CM12S) or if I need to change the screen completely. The guy says he had the phone for 2 months and he hasn't try to fix it because he has an iPhone (LOL)
Thanks for your answers!
Chris
Click to expand...
Click to collapse
This has been answered here:
http://forum.xda-developers.com/showthread.php?p=62248858#post62248858
Please don't double post, it isn't allowed.
messedup kid said:
Hey guys, I want to buy a "defective" OPO for 100$. The sellers told me that a part of the touchscreen (about 13%) is not working. He says it works every once in a while but it is really rare. I was wondering if I would be able to fix this trough a Kernel or a ROM update (he runs CM12S) or if I need to change the screen completely. The guy says he had the phone for 2 months and he hasn't try to fix it because he has an iPhone (LOL)
Thanks for your answers!
Chris
Click to expand...
Click to collapse
Don't think how low u have to pay for opo but must think is it usable
Nearly 20% users complaining about touch issues like
1)ghost touch
2)unresponsive screen etc
http://forum.xda-developers.com/oneplus-one/help/ghost-touches-invisible-finger-t2832822
OPO tried to solve this by firmware updates but they still not fully able to manage it
New firmware with improved kernel solved lot more touch issues but draining battery a lot for most people's
So its u r decision buy or not to buy but three possibilities are
1) buy if u don't care about u r money if problem not got solved
2)buy if screen problem is not due to any hardware issues because if yes u have to replace whole screen which cost 200$
3)if its software problem then u should know most of android rooting/ flashing /custom roms/custom kernels to recover problems
If its software problem then these are some solution
http://www.ibtimes.co.uk/oneplus-on...yanogenmod-12-1-nightly-download-link-1501619
https://www.reddit.com/r/oneplus/co...ion_megathread/?_e_pi_=7,PAGE_ID10,2278873835
https://forums.oneplus.net/threads/touchscreen-issues-fix.314410/?_e_pi_=7,PAGE_ID10,1349877307
Following is hardware solution follow correctly :-
https://forums.oneplus.net/threads/...problem.186235/?_e_pi_=7,PAGE_ID10,3603659338
I bought an oneplus one with a broken screen on ebay.
Bought an replacement display with frame and some cheap tools for 50€ on aliexpress.
Replaced the broken screen + frame withing one hour. It was my first attempt to open up a smartphone ever.
Only problematic part was the earpiece, which I almost destroyed.
And also the lower antenna (which is fixed with double sided adhesive tape) bent a little bit.
But besides that it was very easy to dismantle the Oneplus One and to replace the screen/frame combo.
Compared to my other One the new screen looks absolutely identical. Only the earpiece grille is slightly different.
So. My conclusion. If your are able to unscrew a smartphone and are not completely lacking fine motoric skills, you can have a cheap Oneplus One. Watch the tutorials vids on youtube and the photos on ifixit.
cheers!
Edit:
Ah and yes. With my One the screen was shattered and not working.
So I have to agree to my previous speaker. It could also be some other part of the hardware not working. It's always a risk. But I assume, that by replacing the whole screen/frame, probably the digitizer problems should be solved.
---------- Post added at 05:32 PM ---------- Previous post was at 05:19 PM ----------
walpanmad said:
3)if its software problem then u should know most of android rooting/ flashing /custom roms/custom kernels to recover problems
Click to expand...
Click to collapse
I also wanted to mention that I also experienced ghost touch issues with my first Oneplus One.
Thats why I orderd a replacement screen in the first place. Then, in the meantime, until the display arrived, Oneplus released a firmware update and my ghost touch issues vanished.
But. I never had parts completely not responding on my screen. It was "only" a ghost touch issue.
i have it
Hey guys, i finally bought thé phone and the u, thé j and the n keys works 1 out of 10 times. Si it is not completely broke. How tout dix that?
Download YAMTT from play store. Test if you can paint everywhere on the screen.
yamtt
no I can't there is a small bar on the right that is not working
Probably a broken digitizer. I.'ve never read of anybody fixing this with a Software update. On the other hand, I'm not an expert...