How to calibrate touchscreen on MIUI 11 ? - Xiaomi Redmi 6 Pro Questions & Answers

Hi,
After a screen replacement, my tactil dosen't work proprely, mostly on the edge.
There i a way to calibrate the touchscreen ?
Thanks

I've replaced tons of screens on phones. If it doesn't work on a side it won't work no matter what you. No calibration won't help. It's broken. Return it to seller for replacement.

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Separating Digitizer & Display

Hi,
My problem: Two months ago, the display of my Alpine (HTC 2020i) crashed (not the digitzer). I bought a new display from china for 80$.
This worked for about 2 weeks, then, suddenly the background-light did not work any more. While trying to reopen the device (for checking the connectors) the digitizer broke and the phone is almost unuseable.
My idea would be to separate the digitizer (which should work) from my old display and replace the broken digitizer with the old one.
Will this work? How to separate the two things? Is it possible without breaking it?
Another solution would be: http://cgi.ebay.at/ws/eBayISAPI.dll?ViewItem&item=330134835906
But there I've the same problem: How to change the digitizer?
Any hints are much appreciated!
Thank you in advance!
Best regards,
dy/dx
digitizer and display
it will work only if u will manage to put the digitizer correctly without distrubing the gas pattern on it recently my digitizer stop working so i sreviced it from a repairing center but i m not setisfied at all as i have to re align the screen twice or more in a day. so be careful while changing the digitzer do not press it too hard and check the youtube for the videos for how to change the digitizer they help u.
It is easy to replace the digitizer than the display.In this case one would have to b accurate to pull out the digitizer.There are 98% chance that it will fail, when remove digitizer from a broken display.My experience of fixing 100s of digitizers in various phones..including Palm and Athena

[Q] HW0002 Touchscreen Problems.

Recently my EVO has stopped responding to touch inputs. It will wake with the power button but sometimes the touchscreen will not respond. Sometime I'll be able to launch an application and then it will stop. Sometimes it will work fine for minutes/hours and then the problem will surface. I've tried multiple ROMs and it doesn't seem to matter what software (AOSP or Sense) the phone is running.
Any ideas?
Sounds like it may be a hardware problem and not a software one. Have you had any problems with the LCD or digitizer?
Tripp-phpBB said:
Sounds like it may be a hardware problem and not a software one. Have you had any problems with the LCD or digitizer?
Click to expand...
Click to collapse
well if its not responding then it is the digitizer. but before you dump a bunch of money into a new digitizer or new phone let me ask u this.
does it only not work while plugged in and charging? because that is kinda a common problem. as long as it works when not plugged in then ur fine.
I haven't specifically tested it to see whether or not being plugged in affects the problem but another symptom is that when it goes on the fritz you can be hitting the back or home area at the bottom and it will register the touch somewhere near the top of the screen.
Does that narrow the possibilities?
Definitely sounds like a screen/digitizer issue.
If you have the protection plan from Sprint, you can take to a repair center and they will replace for you. No charge.
Thanks for the help. My local Sprint store will replace it for $35. So we'll see if that's the issue.
Gotta flash over to stock ROM so they'll work on it though.
EDIT:
Spoke to soon. Technician at the Sprint store won't work on it. They're trying to claim there is water damage when there is none. I guess I'll have to do it myself.

need help - touchscreen fix

noticed that my touchscreen is becoming unresponsive lately so i thought that changing the multitouch might solve it. the thing is, after selecting 4 touch, touchscreen becomes totally unresponsive. i tried wipe and even flashing stock os but touchscreen is still the same.
did i screw up my touch screen? how will i know? any known repairs or fix.
thanks
Sounds like your digitalizer (the glass above the screen) is busted and needs replacement. If your phone is under warranty, claim it, if not - get a new digitalizer and if you can't change it yourself, take it to a repair shop.
Changed the digitizer but still no response
Got a headache? It's all in your head!!!
switch ROM
You said that you flashed back to stock, but how about flashing to another ROM, I mean one that has a completly diferent multitouch enabler... that might work.
kherzad said:
You said that you flashed back to stock, but how about flashing to another ROM, I mean one that has a completly diferent multitouch enabler... that might work.
Click to expand...
Click to collapse
i was able to flash stock and it means i have no root nor recovery. and adb debugging is not enabled. i am out of ideas how i will be able to solve this.
After flashing stock ROM do you face the same issue with a new Digitizer?
yes. doesnt respond to anything except volume and power. even the 4 touch buttons doesn't work. i was thinking that i have received a bad digitizer or it is a motherboard issue. with the latter i have no idea how to check
salingpusa said:
yes. doesnt respond to anything except volume and power. even the 4 touch buttons doesn't work. i was thinking that i have received a bad digitizer or it is a motherboard issue. with the latter i have no idea how to check
Click to expand...
Click to collapse
I had recently taken my Defy to a service center. I just wanted to change the earpiece and the side casing. While replacing the side casing (while removing the Digitizer) they damaged the digitizer. The main touch portion was working but the 4 soft keys were not. They replaced the digitizer and everything was fine again (had to pay for it )
If you can carefully handle the phone, you can open up the casing and try reconnecting the digitizer to the board. (Do not remove the digitizer from the casing only reconnect the cable).
Replacement is better done by a service center as it requires careful handing.
I did open the phone, removed and reconnected the cable, still the same. also tried 2 new digitizer still the same result. I guess it us the mother board . Any ideas where to get replacement board ?
Thanks
Got a headache? It's all in your head!!!
i have got the same problem like you and i have solved it.
Do compass calibration like spin the phone 3 times in flat condition (laying down face up), then have the phone standing up and rotate 3 times, then on one side, rotate 3 times and then move your defy in the shape of number "8" in the air. Re-open the screen. it is suppose to bring back your screen work like it was nothing happened.
only for my defy i've tried never did this for another but from what i see you have nothing to lose here
Tried the calibrating thing and also a new digitizer. doesn't work. So it is the motherboard.
Anyone knows where to get mother board
Got a headache? It's all in your head!!!
Getting a new board is like getting a new phone - new IMEI, price for the board should be very similar to the pricw for a new phone too. If you think about it, it IS the phone. What's there in the phone other than the board a screen and a digitizer...
Guess you're right.
Got a headache? It's all in your head!!!

[Q] Digitizer/Touch screen not fully responding.

Quick introduction. For experience and training purposes I started buying broken phones (LCD, digitizers) and try to repair them. I bought HTC Wildfire S with just cracked touch screen. Bought parts and replaced. When assembling phone back the screen did not work on the whole area, what I mean it was working like partially, only vertical left hand side was working. Like writing text message, R works, then E and T doesn't.
Tried to disconnect the digitizer connector, maybe it was not touching properly, couple times. But that didn't work. It was just working in different places than before. Found here a thread about a problem for different digitizer versions.
http://forum.xda-developers.com/showthread.php?t=1942259
But the thing is I have no idea how to approach anything that these people suggest. I don't know how to replace software, reinstall it or whatever involves soft. I would like to learn too.
If you have any ideas or suggestions please share with me, if not I will just sell the phone back as not working. Thanks

Touchscreen not working, tried replacement, root, and spen still works. HELP

I have a note 3 900t, I took shop they charged me 270 replace screen and digitizer and it did not work, I rooted and used custom room and still does not work. I reset 1000 times.
My spen works, there is no damage to screen, but the touchscreen does not work with fingers..
Does anyone have imput or same issue?
How many digitizers are in the note 3?
daze28nyc said:
I have a note 3 900t, I took shop they charged me 270 replace screen and digitizer and it did not work, I rooted and used custom room and still does not work. I reset 1000 times.
My spen works, there is no damage to screen, but the touchscreen does not work with fingers..
Does anyone have imput or same issue?
How many digitizers are in the note 3?
Click to expand...
Click to collapse
I faced the exact same problem today after I updated to Kitkat (Mobile Odin method to keep root).
Touch Screen doesn't work, s-pen works flawlessly. It was working properly earlier.
A simple restart made it work. Sorry that it isn't working for you. But looking at what happened to me, it looks like a software problem, not a hardware one.

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