Database Info

[Q] HTC One X Digitizer/LCD Repair Problems

I run a cell phone repair company and we do quite a few repairs but this in particular HTC One X has us all stumped here. We do realize that there are 3 different versions of the dig/lcd and we have the correct part. But has anyone had problems with trying to replace the HTC One X dig/lcd assembly. It seems that after I put the new part on the lcd is black but the phone is still on. I even went back and put the old screen back on and it is still black. Prior to the repair the lcd worked fine. But just the digitizer was cracked. I have even went as far as changing the motherboard on the phone to a new one and am still having the same issue. Any help would be greatly appreciated!

Have you checked the ribbon length to make sure you do not have a break?
Sent from my HTC One X using xda premium

It would seem to me as though it's just as simple as one of the connectors is not plugged in or just not plugged in properly, which is easy to do since one of them is on the underside of the board which I believe is the one for the screen itself.

cellulardepot337 said:
I run a cell phone repair company and we do quite a few repairs but this in particular HTC One X has us all stumped here. We do realize that there are 3 different versions of the dig/lcd and we have the correct part. But has anyone had problems with trying to replace the HTC One X dig/lcd assembly. It seems that after I put the new part on the lcd is black but the phone is still on. I even went back and put the old screen back on and it is still black. Prior to the repair the lcd worked fine. But just the digitizer was cracked. I have even went as far as changing the motherboard on the phone to a new one and am still having the same issue. Any help would be greatly appreciated!
Click to expand...
Click to collapse
Hello did you sync the lcd's? Search how to get it sync'd! Thats why it doesn'n turn on...
Enviado desde mi Sony Tablet S usando Tapatalk 2

azteka88 said:
Hello did you sync the lcd's? Search how to get it sync'd! Thats why it doesn'n turn on...
Enviado desde mi Sony Tablet S usando Tapatalk 2
Click to expand...
Click to collapse
OP already stated that going back to the original LCD did not yield results.

exad said:
OP already stated that going back to the original LCD did not yield results.
Click to expand...
Click to collapse
ok look for this user, "skanman911" maybe he can give you some ideas, he switch the lcd for another NON sony and make it works...

exad said:
OP already stated that going back to the original LCD did not yield results.
Click to expand...
Click to collapse
Exactly. Seems like the only probable answer is that something was broken during teardown - either a cable or connector. Given the size of everything in there, it doesn't take much....

Did you ever find a solution to this?
I'm kind of in the same boat at the moment, BUT there's a silverish lining
In the midst of replacing a screen on my One X. Phone is obviously "on" (despite being in pieces on my desk), but n either the new or old screens will come on when I push the power button.
For a lark, I plugged the phone in, and did an 'adb reboot'
My splash screen comes up on the new screen just fine, as does the Viper Logo and my home screen and everything.... but once it shuts off the power button will NOT re-wake it up. At first I thought "I must have broken the power button" but I also forced a notification to it - which also typically wakes up the screen - and also saw nothing.
EDIT : Cancel that; for some reason the power button didn't work until I had the case back on. Grounding maybe? Either way, working fine now.

Some Ebay product page for a screen replacement said you should first power on the device with the old screen, then take the old screen out while the phone is running and put the new one in.
Maybe you should trie that. I'm not a hardware expert, so do some research before trying this and don't blame me if it doesnt work

That will only work if the screens not working. Op. It's difficult to narrow the issue in your situation. If the flex cables don't work, it's a short which would require much more advanced knowledge to fix.
Sent from my One X using xda app-developers app

Problem on a display please help...

My s5 snapdragon version has a big problem
Sometimes when i try to turn on it the display became black...
But the light and vibrating are working and touch also!
And it come back working by itsilf...
It dosent get any signs only work or balck
Sorry for my pad english

A7med.7 said:
My s5 snapdragon version has a big problem
Sometimes when i try to turn on it the display became black...
But the light and vibrating are working and touch also!
And it come back working by itsilf...
It dosent get any signs only work or balck
Sorry for my pad english
Click to expand...
Click to collapse
We've heard of similar cases here on XDA before, sounds like a dodgy digitizer to me.
Had the same problem last year, after that I started getting these so-called snowstorms and my phone kept rebooting itself.
I ended up purchasing a new screen on eBay and was lucky enough to get a genuine one for about 70 Euros.
All went well for me, new screen's working flawlessly.
If the problem persists or even gets worse you should perhaps think about whether it's worth the money.
Removing the old display and assembling the new one isn't that difficult, there's quite a few YouTube videos out there.
If you have any further questions feel free to ask.
Edit: When did you start having that problem? I don't think it's probable but maybe it's got something to do with the ROM you've got installed. Try flashing another one (e.g. AEX Pie, LOS 15.1 or stock) without any custom kernels or boot into TWRP to see if you've still got the same issue. Play around a bit to see if the problem still persists. Remember to back up your important data. Again, this probably isn't the cause but it's still worth trying before considering to buy a new screen or phone.

James160103 said:
We've heard of similar cases here on XDA before, sounds like a dodgy digitizer to me.
Had the same problem last year, after that I started getting these so-called snowstorms and my phone kept rebooting itself.
I ended up purchasing a new screen on eBay and was lucky enough to get a genuine one for about 70 Euros.
All went well for me, new screen's working flawlessly.
If the problem persists or even gets worse you should perhaps think about whether it's worth the money.
Removing the old display and assembling the new one isn't that difficult, there's quite a few YouTube videos out there.
If you have any further questions feel free to ask.
Edit: When did you start having that problem? I don't think it's probable but maybe it's got something to do with the ROM you've got installed. Try flashing another one (e.g. AEX Pie, LOS 15.1 or stock) without any custom kernels or boot into TWRP to see if you've still got the same issue. Play around a bit to see if the problem still persists. Remember to back up your important data. Again, this probably isn't the cause but it's still worth trying before considering to buy a new screen or phone.
Click to expand...
Click to collapse
I've flashed los15.1 but the same and when i try to open twrp its black screen also but some times it work fine with no problem about 5 howrs and get the problem again so i think i must buy new display
Thank you for your reply

A7med.7 said:
I've flashed los15.1 but the same and when i try to open twrp its black screen also but some times it work fine with no problem about 5 howrs and get the problem again so i think i must buy new display
Thank you for your reply
Click to expand...
Click to collapse
No problem. Here's the link: https://ebay.to/2N7SQYO
Hope it's OK to post this on XDA.

I've suffered this issue since 1 year and last month the phone couldn't display itself anymore, my trick was to slightly twist the phone using both hands and it will temporarily enable the display, got tired of it and I went to a local mall offering mobile phone repair services, told them the issue, most of the shops refused or would just advise me to get a new screen buty persistence in telling that the screen is fine it might be just a small misalignment or loose contact and thankfully one technician listened to me and just asked if I'm willing to risk the screen being damaged and we'll what do you know he just re seated it and walla phone is alive again in fact I am typing this through my S5

Screen died - phone still works - is there a way to fix?

Hey guys.
So today my screen just randomly died. Didn't drop the thing. Used it the one second, the other second it was just dead. Phone still works. vibration, touch, sound etc still works, but the screen will not display anything, not even booting to recovery or fastboot.
Recently installed the global ROM. I got the phone in the original Chinese ROM. This poses a problem. Ordinarily, I would have sent this thing off to Xiaomi, but I am fearing that I may have voided my warranty by unlocking the phone and also installing the global ROM. So, I would greatly appreciate input on the following 3 points
1) What troubleshooting measures can I take to try and get the screen live again?
2) I have heard that I can flash the original ROM and this might help my case for a warranty claim. Problem is - 1) I cannot use the phone's interface, this might make it difficult to navigate TWRP. Unless I can control TWRP through the PC command line? 2) I never enabled USB debugging on the flashed ROM. However, i flashed something recently through TRWP (the Global ROM region fix), so I am hoping I can still flash things through TWRP.
3) If I cannot achieve the previous two points, is it worth sending this phone back to Xiaomi. I bought the phone through Gearbest and I live in South Africa, so I imagine safe shipping will set me back anything from 50USD to 150USD.

UPDATE: I managed to boot to TWRP - using the "adb devices" command brings up my device ID. Maybe there is hope for flashing the chinese ROM if I can simply navigate TWRP through the command line.

Is there not a fastboot image of the ROM you can flash? I'd send it back in anyway, chances are they'll just replace the screen and flash it back to stick.

invisiblewave said:
Is there not a fastboot image of the ROM you can flash? I'd send it back in anyway, chances are they'll just replace the screen and flash it back to stick.
Click to expand...
Click to collapse
Yes I believe there is. But I hope I can flash the original via MiFlash.
On another note - ive been doing some reading and apparently black screening on Xiaomi phones is actually quite common. I am beggining to think my black screen might be a software problem with having moved over to the global.
If anyone has some spare time - I would appreciate a step by step guide on how to revert to the chinese ROM (i am busy downloading it). I am hoping this might fix my black screen, and if not, then atleast I can send the phone back to xiaomi with stock ROM and make a warranty repair/refund
Thanks.

mi mix 3 very fragile
black screen, same happened to me, new phone, fell down and black screen. not broken , phone still vibrate, and ringing at a call . nothing shows up, useless . I had 3 xiaomi phones before, I broke the screen but they still work.
I destroyed a note4 screen after a car pass over it ( feel from my pocket driving my motorcycle,).and still work. I Have also a note5a prime with broken screen totaly working. Then I loved MI phones.
this mix3 is a ****, a little fall down,(whit gorilla protection in the screen and with
it the cover on it , and become garbage). I will not reapair it , will repair my note5a prime.
Lisent this : if you go fishing and your are not taking well care of your phone do not buy xiaomi mi mix3
it is slippery .
If you know any solution whitout replacing the display module, will appreciate. Regards. Martin

I had the same problem, do you have any solution without replacing the display?
Regards Andreas

my screen was replaced.. had same problems.

I broke my screen. Went to xiaomi hk and they fixed it. 860 hkd which I thought was fair.

White vertical lines showing up when i start my oppo a39.

My phone's screen was broken. So, i went to a shop and the repairer installed a new one. The phone was working fine. I updated it to Marshmallow but it has some brightness issues. So, i decided to downgrade it. I flashed my phone and after flashing, when i restarted it, my device is showing white thick vertical lines and then my device turns off. I tried re-flashing but still i have same issue. I cannot buy a new one as i am a uni student. I need help. it has almost been more than a week and i am without any smartphone lol. Kindly help me. Thanks! I have OPPO A39.

umer.khan said:
My phone's screen was broken. So, i went to a shop and the repairer installed a new one. The phone was working fine. I updated it to Marshmallow but it has some brightness issues. So, i decided to downgrade it. I flashed my phone and after flashing, when i restarted it, my device is showing white thick vertical lines and then my device turns off. I tried re-flashing but still i have same issue. I cannot buy a new one as i am a uni student. I need help. it has almost been more than a week and i am without any smartphone lol. Kindly help me. Thanks! I have OPPO A39.
Click to expand...
Click to collapse
Probably because the replacement screen wasn't the exact same model as your original screen, meaning that the repair shop probably had to flash a different kernel or a modified kernel to make the different screen work with your stock software and when you updated to Marshmallow it probably flashed your stock kernel(the kernel that would have worked with the original screen but not exactly right for the new screen). If that is what they did, you might need to flash a different or modified kernel to fix this.
Sent from my LGL84VL using Tapatalk

Ghost touching (phone doing random things by itself)

Hello, yesterday I received my phone. For the first hour it was working fine. But later, when I locked the phone I couldn't enter my password or shut down because phone started touching random things by itself. Did a factory reset but after that I can't even setup the phone because it doing random things by itself. Tried to discharge the phone and leave it overnight. But the next day it was the same story. I even peeled of screen protector but no luck. I think it's not system related issue, might be that I got the faulty one with bad touchscreen? Has anyone had this issue?

Mine doesn't has any touch issues. Seems a manufacturing defect, better off exchanging/returning it.

Return it asap, it was a problem on my mi9se and it only becomes worse

VyktorJonas said:
Return it asap, it was a problem on my mi9se and it only becomes worse
Click to expand...
Click to collapse
The problem is that I bought it overseas and returning it back would take very long because of the corona I"m wondering what's the problem could be, touchscreen or something more serious like motherboard. If it only screen I might change it by myself

Return it under warranty. The second you open it that is gone and if the problem persists, then you are screwed...
Not only have you lost the purchase price of the phone but the cost of the replacement screen too which generally aren't cheap...

ultramag69 said:
Return it under warranty. The second you open it that is gone and if the problem persists, then you are screwed...
Not only have you lost the purchase price of the phone but the cost of the replacement screen too which generally aren't cheap...
Click to expand...
Click to collapse
Yeah, I get it. Also, Xiaomi have international warranty or only local? Because would be great if it could be changed at my country. But as far as I know it has just local warranty from where it was bought or am I wrong?

dovis838 said:
Yeah, I get it. Also, Xiaomi have international warranty or only local? Because would be great if it could be changed at my country. But as far as I know it has just local warranty from where it was bought or am I wrong?
Click to expand...
Click to collapse
since it's a brand new phoen and you just bought it, I;m sure the store in which you bought it from has to accept the phone back, I can't stress this enough, please return your phone for your own good

Try use 60hz screen setting

Also, how did the problem start?

Alvian_P said:
Try use 60hz screen setting
Click to expand...
Click to collapse
I can't even setup my phone now. I'm at miui startup after factory reset.

VyktorJonas said:
Also, how did the problem start?
Click to expand...
Click to collapse
Idk, just randomly. I was using it for about an hour. Locked the phone for about 5min. And after that I couldn't enter my pin and read fingerprint because phone started randomly touching screen. I can't even shut down the phone screen is always on until battery discharges.

dovis838 said:
I can't even setup my phone now. I'm at miui startup after factory reset.
Click to expand...
Click to collapse
Try use OTG wireless mouse. Connect mouse dongel with OTG type C.

Alvian_P said:
Try use OTG wireless mouse. Connect mouse dongel with OTG type C.
Click to expand...
Click to collapse
Tried this. Still impossible to press anything because phone keep doing random things

dovis838 said:
Tried this. Still impossible to press anything because phone keep doing random things
Click to expand...
Click to collapse
from where is your phone region? it can happen from many possibilities. maybe from the kernel. You can try to flash using miflash according to the firmware region.
or try to enter stock recovery, is it random touch or not. (vol + & power)
new phone is still a warranty, it's good to go to a xiaomi service center

My case was, when the phone was brand new power button was stucked . But after using it few times, everything was fine. It didn't happen again
Sent from my M2007J20CG using Tapatalk

My unit is a little more than a month old, and it started doing the same thing right now (about 10 minutes ago) randomly, while I was videochatting with someone. Did anyone solve this issue?

lorinet3 said:
My unit is a little more than a month old, and it started doing the same thing right now (about 10 minutes ago) randomly, while I was videochatting with someone. Did anyone solve this issue?
Click to expand...
Click to collapse
In my case it was faulty digitizer, after replacament everything is fine. I bought it overseas so no international warranty, but seller refunded me half the price. I went for the screen replacment and after that everything works fine.