Mi 9 broken after fall - Xiaomi Mi 9 Questions & Answers

Hello everyone,
I've dropped my MI9 to the bottom right-hand corner.
Afterwards the mobile phone went on 1-2 times. After that the phone became extremely hot and it stayed black.
Could anyone tell me what could be defective? Or how I check it?
I have experience in opening mobile phones and repair simple things like changing the display, charging jack and battery.
Thanks a lot!

Related

Milestone Touch Screen acting wierd

well when im only using touch keyboard the corners and edges dont work
P,L Backspace, Go, The whole bottom, A, i
Its a common problem. I had the same. Unfortunately your touch screen is dying. Replace.
Sent from my Milestone using XDA App
Welcome to the club, apparently some people fixed it by warming their phone, putting it in rice, or replacing their digitizer.
i have another kind of problem: sometimes the screen begins it's own life, like somebody quickly touching it (solves with on/off button).
And sometimes i touch it in some point, but it thinks, that i touch it in another.
Disappointing, but not annoying.
well it seems to be working fine now
0667 said:
i have another kind of problem: sometimes the screen begins it's own life, like somebody quickly touching it (solves with on/off button).
And sometimes i touch it in some point, but it thinks, that i touch it in another.
Disappointing, but not annoying.
Click to expand...
Click to collapse
happens to me EVERY week
0667 said:
i have another kind of problem: sometimes the screen begins it's own life, like somebody quickly touching it (solves with on/off button).
And sometimes i touch it in some point, but it thinks, that i touch it in another.
Disappointing, but not annoying.
Click to expand...
Click to collapse
Got the exact same problem, send it for repair. Apparently they found corrosion in my internals, though I really have no idea how liquid got in there. There is no spillage or any sort happen to my phone.
Oh well that means goodbye to my Milestone and back to stone age for awhile.
I had this same problem a week ago, and it happened all day long. It happened that my screen was wet (don't ask me how, I don't know), and now it's working just fine
Well if your touchscreen are not responding well to your touch, or if you feel that a ghost has been playing around on it (eg. "like somebody quickly touching it"), then it's a symptom that the touchscreen is faulty and it's time to replace the digitizer or buy a new phone
I faced the same problem sometime. In this case, reboot the phone may fix this problem.
If it doesn't work, I think you have to replace the touch screen.
nowforever said:
I faced the same problem sometime. In this case, reboot the phone may fix this problem.
If it doesn't work, I think you have to replace the touch screen.
Click to expand...
Click to collapse
+1
Had one issue like this in 3 months, 1/5th from the top of the screen wouldn't respond anymore, no matter the program. The issue went away after rebooting the phone.
I am facing the ghost touch problem or the right side is not working at all. First time, it started on it's own but last night, while it was connected to the PC the nightmare began. I don't know what the heck should I do, because I don't have money to spend on new digitizer. Last time the problem was solved by letting the phone in a dry place (it wasn't dropped in water or so). I hope this time will work too... BTW, pressing the on/off button seems to fix the issues for ~3-4 seconds. Anyway, Moto sucks .
neato4u said:
Well if your touchscreen are not responding well to your touch, or if you feel that a ghost has been playing around on it (eg. "like somebody quickly touching it"), then it's a symptom that the touchscreen is faulty and it's time to replace the digitizer or buy a new phone
Click to expand...
Click to collapse
Are you sure this isn't the flex cable problem?
If it is the flex cable problem, where can be found to buy and replace? Because I am sure that is less expensive than replacing the whole digitizer.
I had the same problem, but it's more than a month that I recharge battery with a Samsung wall charger (700mAh power), it completely desappear.
One week ago I charged the battery with the USB cable and the problem reappear, desappearing only after a reboot.
It's NOT a flex problem for sure, our phone is very susceptible of current variations when charging. If the problem still remains after unplug and reboot, I suggest to try with another battery.

Xperia Z1 (C6902) issues after a few centimeters in water photography

I will explain what happened as elaborate as possible so that some of you can help me with the problem I've been facing.
I have put my phone in water about 5 - 10 cms in my aquarium for a video. 1 was 20 seconds and as it came well. I've took another video for 47 seconds. After that I've tried checking for problem in any component of phone and everything went well. I've shared videos and then used my phone as usual for a long time and phone was completely normal.
I've placed my phone on dock for charging and the magnet didn't work in the first instant. They just didn't stick. I thought it was some issue and I just rubbed my phone to the dock twice or thrice and the magnetic action came back along with a wide array of problems.
I removed from dock while charging and the screen started to randomly blink and the touch never worked. I placed it back in the dock and it charged normally. After a while I've removed it from the dock and the screen got blank all of a sudden scaring me to death. I placed it back and again took it. This time it worked completely normal as if nothing happened and I was able to send a text message. I thought that was just for one time and placed it back for charging and that was the last time my phone touch screen worked.
I removed from the dock after a while trying to unlock the screen and nothing happens. I could use all the hard buttons on the screen. I was able to capture photos using the camera button. Change volume, lock and unlock screen. I tried switching off using the method of volume up + power button. It turned off and on turning on it got even bad. The sony logo blinks a lot it goes dim it comes bright and all sorts of weird things happened. I've removed the sim card and turned on the phone to charge and now the phone restarts after every few minutes.
Even now except the touch screen everything else works fine like the camera. I tried removing the screen protector but that didn't help.
Hoping to have an answer other than taking it to a service center.
Thanks
It seems that not all of z1s are waterproof. I had mine in the sea in about 1 meter deep for 30mins and its still completely functional ( I wash it every day too). Anyway, sorry to tell you but simply there isn't any way to fix it yourself. The only thing you can do is take it to service. And more bad news to come: your warranty doesn't cover damage from water, so you will have to pay. The only thing you can try is blowing your phone with a hairdryer for a few secs, but thats risky.
Took it to the service center. Asked them to check the flaps before they accepted the mobile and there was no water through flaps as the flap litmus is completely unaffected. They took it under warranty and the next day called me to say that it had water in the display connector and the same warranty void answer but I've requested to let me know how the water went inside and they said it was through the bottom speaker grill which clearly means manufacturing defect. Along with escalating the issue I've also asked for a quote for the repair if the warranty gets void and today they came up with this wonderful quote of ₹20,179 its wonderful because I purchased the phone for ₹17,600 just a month ago. The request for manufacturing defect inspection is under progress so I wish to get some good news.
More strange things here. I have completely lost all of my speaker grill but my phone is still 100% waterproof. It's clearly a manufacturing defect, but I doubt they will accept it . Sony support and service is just terrible

nexus 6 screen problems after lcd replacement

Hello. I need a help about my nexus 6 if someone understand its inner components .
I replaced the screen and after that everything works well except serverals screen flickerings and artefacts which appears randomly, not very often, especially on in cold temperature or if I bend or touch the phone harder. After flickering screen stays black and I'm forced to press hard right upper corner of the phone or bend it a little bit to get it back to work. I think there must be some flex cable maybe not well fixed, can you please help me which one can make this issue? Or could it be something else? Maybe whole new LCD part defective? On which part of the phone should I focus if I will disassemble it again?
Thank you very much.

Xiaomi Mi 9T Pro - Dead Screen

Hi!
I'm here to figure out if someone can help me.
I was using my phone normally, I was trying to unlock it when the screen flashed like 3 times with a blue color similar to the color of the screen when you are trying to unlock the device, it happened like three times, then I rebooted the phone and the screen is black and unresponsive. I can tell that the phone is working in the background because I can feel the touchscreen working, it's also charging, ringing and I can even answer phone calls, it's also connected to my Wi-Fi network, the phone is not damaged and I haven't dropped it recently (a few times some days ago but nothing serious). I'm wondering, is the screen dead? or maybe something's loose on the inside?

Screen not responding to touches anymore - plz help

TLDR: Screen not responding to touches anymore for no apparent reason. It's displaying everything properly, but it won't react to any touch.
Something weird happened to me today. I own a Mi 9T Pro. I received a second Mi 9T Pro with minor water damage at the bottom part (charging port area).
To make sure it was repairable I replaced the damaged parts with parts from my own Mi 9T Pro just to check if it's working. It was working.
I ordered replacement parts from AliExpress and today I put everything together. I didn't have the screen yet, but everything else had arrived. I connected my own phone's screen again just to verify that everything is working. And then it happened.
I turned the phone on. It vibrated and the Mi logo came up as usual, everything seemed normal. After some seconds, while the Mi logo was still on, the screen suddenly turned kinda turquoise for a bit, as though it lost signal for a moment. Quite like an old TV would do.
It did that two times. After that the booting was completed and I had to enter the PIN - at which point I discovered that the screen does not seem to be registering touches anymore. It's displaying everything properly, but it won't react to any touches anymore.
I shut it down and plugged the screen back to the phone it belongs (my own). And touching is not working on my phone now either ...
(Volume buttons work - screen shows the volume bar changing up and down properly.
Screen is about 2 years old and was working flawlessly before.)
Anybody got a clue what might have happened? Can it be saved? I've never had this happen before. Can it be that some replacement part/flex cable was faulty and it damaged/burned the digitizer? How can the touching suddenly stop working just like that?
I highly appreciate any input since having used the screen from my personal phone, I am now left without a phone
Thanks to everyone very much for your time.
you should check the screen cable , you might have damaged it.
Check the ribbon cable under a microscope , check the pins also , you might have bent them. (70% probability)
if not , then your digitizer is damaged somehow (30% possible)
Thanks very much. And either scenario is not repairable I guess, right?
pazof said:
Thanks very much. And either scenario is not repairable I guess, right?
Click to expand...
Click to collapse
On the contrary, both are repairable.
the first scenario is repairable relatively easier compared to the second scenario.
if its the ribbon , it can be repaired if you have the equipement and micro soldering skills, you can easily repaired the broken traces.
For the digitizer , there are some repair shops that have the equipement to replace only the digitizer, and keep the original screen, its not a DIY task really as you need a lot of equipement thats not worth doing it yourself.
Hope this helps.
It most certainly has helped, thank you very much mate. Have a good one.

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