Phone call problem - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hi, after update to Android 10, when I make a phone call, display black's out, and I can't hang up. To hanging up, I must unlock phone whit fingerprint. I make a hard reset to my phone, but problem is still here. Please any help?

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8125 Issue - Phone rings and vibrates on soft reset

I don't know if anyone else has had or is having this problem, but i thought i would ask for help.
Sometimes I have to perform a hard reset. When I do, it runs through it's normal start up sequence, all the way through the windows mobile startup screen. As it begins to change from the startup to the today screen, the phone will begin to vibrate and ring on it's own. vibrate for a second or two, and then it's quiet for a second or two, and then ring. the ringer starts off soft, and then seems to work it's way up through to mid range, about 5 different levels of volume. The ringer then stops and the vibrate kicks back in again. It seems to last as long as it takes for my today screen to load. Please understand, The last thing that i want to do is a hard reset, and I'm sure that this would fix the problem, I just don't want to go through the headache of installing all my software. I can hear some people saying, "not a big issue if you have a system backup.." well, I'm thinking that the issue has got to be somewhere in the registry, and I'm thinking that by installing a backup, will only copy the issue back onto my device. I don't soft reset my phone that often, so I can live with the issue if I have to. I just thought I would throw this out there and see if someone might be able to help me out.
Sounds to me that you either pressed the volume button upwards while you phone were starting up or there is something wrong with your volume button in general (either hardware or software). If you have the possibility reflash the device with your shipped ROM version, then see if that persists!

Serious problem... cant answer incoming calls!

I think its a software bug... Its really annoying if someone calls me and I cant accept the call My ringtone just keeps ringing and I just can stupidly look on the screen without answering :S I push the green "answer" button but the call doesnt accept. I neither can use the red "ignore" button. This problem gets solved with a reset but happends again after a short time.
Is there any solution for thisĀ“? Is there any possibility to accept the call trough the touchscreen?
Please help me I am really desperate!!!
Thanks in advanche.
Uhhmm.....i guess you know that you have to 'slide' the button to the green field if you wanna answer...not 'push' the green spot.
Anyways...you can also use the (physical) buttons of the phone to answer or disconnect.
I think you missunderstood me. I actually mean the physical buttons! They arent working anykind. Normally if I press the green "dial/answer" button the dialer application appears right? But it dont! After software resetting it does again somehow for short time. And if I get a call then I press the physical button but the call doesnt accept. It just keeps ringing further. There is no chance to accept the call. And there is no option to accept the call trough the touchscreen.
Indeed, i misunderstood..sorry!!
If the buttons didn't work at all, i would be thinking of a hardware problem, but since you can solve it for a short while with a soft reset.....i'm not so sure of that.
You still have the option of a hard reset, you could give it a shot, just to be sure(Remember to back up your stuff ).
Otherwise send it in for warranty...presuming you still have it.
Thanks for the reply!
I dont think its a hardware problem because the buttons are working again somehow after a software reset. But the problem happens again some time later
Sending it to warranty is no choice since I always got trouble with my warranty!
My old touch had an software problem and couldnt boot so i send it to the warranty and they just send it me back with no repairs claiming that the warranty gets lost if I connect my device with a computer :S
Anyway i hope there is a solution without hardware resetting
Just a thought....
Did you install any locking software which locks the device fully? It may be the one preventing you from answering calls...
HTH...
No I didnt install anything kinda like that. Is there a dialer replacement I could use instead?
I have also noticed this bug on my Jade running the official 2.32 update from HTC:
When a cal is received, the phone rings but it doesn't display who is calling (the device keeps showing the home screen). This is not happening at every call, but I can't find what is causing this behaviour (it happens even after hard reset, so no additional programs running in the background).
Any ideas how to overcome this?

Help required for another locking issue.

Hi guys. First post so I'll try to be brief and explain as best as I can. Here's the scenario.
Phone is in shirt pocket screen is off, phone is locked and bluetooth headset is connected. The phone rings, I answer with the headset and complete the call ok. Now, when the other person hangs up, my phone screen stays active in my pocket and ends up getting all sorts of menus activated.
Is theres a way to turn the screen off immediately upon call completion?
Yep. Me too. Ony complaint I have with the phone. Have to take the phone out of my pocket and hit the end key to turn off the screen. Never had this problem with all other HTC touch devices that I have had with countless custom ROMs. Anyone help.......Please.
Try PocketShield. It will replace your WM lock screen and will offer some more possibilities (auto lock after call ends for example)
Thank you very much

[Q] call screen, dial pad problem

my dial pad is missing when calling someone. screen flashes and the call screen is lost. but the call is normal.
a few times phone opened automaticly coming call. I checked all call settings, there is no anormal setting, please help.
I tried all versions rom. 2.1, 2.2, omg, chayogen etc. now I'm using 2.1 update, kernel leshak 2.6.29, lk2.08.1 samdroid
I have the same problem!
I have the same problem. It started about 3 days ago for no reason. When you press the call button after entering a number, the screen goes black and all the three buttons at base (back, windows and search) are not responsive. There is nothing you can do...you can't hangup or enter numbers until the other party hangs up, unless you reboot. (You can still talk and make the call as normal).
I tried rebooting, took battery out and also did a factory reset but nothing has resolved the problem.
However, I did find a workaround: flip phone over so it goes into speaker mode and then the dialpad becomes visible and you can end the call or use number pad, but you have to keep phone flipped over all the while. Another workaround is to use a Bluetooth headset when making or answering calls. Then the dialpad is always visible as normal.
If anyone knows what to do please respond!
there is no hope (from xda)
I decided to go service...(its doesnt matter I tried al versions rom, I hate this phone, enough, I tired to reload rom vs.)

[Q] Defy+ unlocks while talking

hi, couldn't find anything similar via search and it seems that I'm the only one having such problem.
so, I've tried numerous roms by Quarx, few slimkats and my phone regularly unlocks (i assume) while talking, and hangs up, or even worse, tries to call someone else. i was ready to call it a proximity sensor malfunction, but if i try to cover it while holding phone in hand it works perfectly every time, and I'm using stock ROM for a few weeks now - no hang ups at all. only solution is to push phone firmly into my face or keep it away from it..
so, any suggestions ? even an app which wouldn't unlock the phone in call unless unlock button is pressed or call just ended would be very nice.
thanks.

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