Problema 4g volte - Xiaomi Mi CC9 / Mi 9 Lite Questions & Answers

Guys there's someone who can help me I have a mi9 lite with xiaomi eu 11.0.4.0that until a few weeks ago worked the times then suddenly it stopped working and I noticed that in the phone settings no longer registered ims what can be happened I also tried a network reset but nothing I can do

I'm a little confused by what you posted. What exactly isn't working? You're unable to connect to 4g lte? You're unable to use volte?

It doesn't work multiple times when I make a phone call Disconnected data

sayan79 said:
Guys there's someone who can help me I have a mi9 lite with xiaomi eu 11.0.4.0that until a few weeks ago worked the times then suddenly it stopped working and I noticed that in the phone settings no longer registered ims what can be happened I also tried a network reset but nothing I can do
Click to expand...
Click to collapse
hello guys im have the same problem :::: im from brazil and network operator is VIVO, I followed the same step by step; I put the code for activation but it doesn't work ;;;;;;; VOLTE appears off

I don't know if this is what you're looking for but dialing this number seems to enable volte.
*#*#86583#*#*

Related

Verizon settings that work

Hi all
I have been looking around and browsed all similar threads but I have not found an answer
Can anyone that uses MI Mix on Verizon (successfully) with working data, calls and SMS help me.
Like tell me what ROM are you using, APN (if manually input), VoLTE on/off, what network mode is it on (CDMA-UMTS..etc)
I cannot get for the life of me to get it to work correctly. I have tried all the Lineage variations posted here and I can either have calls and no data or "No service"
Was thinking to try MIUI 9.5.1 since it just came out but I do not want any of the chinese apps that I won't use or menus half translated.
I will really appreciate any help.
Thank you
I am able to get Messaging and Data successfully, but no incoming or outgoing calls. I spent two days with their advanced Global support only to hear the IMEI isn't compatilble with Verizon. Then why does the data and messaging work?
I have a mi mix and Verizon work fine in my phone no problem everything works
It'll work if you live in an area with Verizon Band 4.

[SM-N950F]: WiFi calling on oreo not working?

Have an unlocked SM-N950F BTU with a Vodafone UK SIM.
WiFi calling was working fine with 7.1.1, but after the Oreo upgrade no more.
I lost the setting after the upgrade and had to call vodafone to provision the option to my phone. I have the option under settings and it is enabled, but no WiFi calling.
Called vodafone and they say that they can't see the service being registered on their side. Tried disabled/re enable WiFi calling option on the vodafone app and no luck. Reset network settings and no luck. Shortcut Master Lite no longer works.
Any ideas? Am I the only one on this boat?
No you are most certainly are not the only one! I have been struggling with this myself. Many calls, messages and a visit to a Vodafone shop and I have got nowhere with them. Considering going to EE. I have tried:
Flashing to Vodafone CSC
Replacement SIM from Vodafone
Toggling Wifi setting in my vodafone website.
Asking Vodafone to send config messages
Texting 97888
Downgrading to Android 7.1.1 and fiddling with settings in shortcut master
None of this had made any difference. Note that wifi calling works instantly if I insert a 3 SIM.
Extremely frustrating.
Just a quick note to say that I finally got hold of someone at vodafone that understood the problem and was able to send me settings to enable wifi calling.
Thanks for sharing. Any chance you know what they did? Will give them a call this afternoon again. They said they would contact me in 24/48 hours and this was Monday. - nothing new here right?
Do you who you spoke to at vodafone who sorted the WiFi calling problem? Thanks
Still have an open case with them.

Call Issue in S10 in Exynos Indian Variant

Hello Guys,
I am having a weird issue in my S10 regarding call.(Using Airtel)
I am unable to call anyone through the phone if the Network mode is set to anything other than LTE/3G/2G (auto Connect) (e.g - 2G Only , 3G/2G and so on).
Other the LTE mode , when I try to call someone the call gets cut immediately without any message , ring or anything else.
I tried putting the sim card in my Redmi Note 5 pro and set it to 2G mode , and it worked several times.
So can anyone provide a solution or if anyone can confirm whether they are facing this issue or not?
subhad43 said:
Hello Guys,
I am having a weird issue in my S10 regarding call.(Using Airtel)
I am unable to call anyone through the phone if the Network mode is set to anything other than LTE/3G/2G (auto Connect) (e.g - 2G Only , 3G/2G and so on).
Other the LTE mode , when I try to call someone the call gets cut immediately without any message , ring or anything else.
I tried putting the sim card in my Redmi Note 5 pro and set it to 2G mode , and it worked several times.
So can anyone provide a solution or if anyone can confirm whether they are facing this issue or not?
Click to expand...
Click to collapse
Hello, which carrier do you have? In my case i have Idea which fails to provide a 4g+ service in certain area/region followed by which you cannot call or receive calls on LTE/3g/2g. Try using a different sim card which has 4g+ service in your area/region.
Regards
Mandark52 said:
Hello, which carrier do you have? In my case i have Idea which fails to provide a 4g+ service in certain area/region followed by which you cannot call or receive calls on LTE/3g/2g. Try using a different sim card which has 4g+ service in your area/region.
Regards
Click to expand...
Click to collapse
I am using Airtel 4G. There is 4G in my region, the issue is I can call when its set to LTE (4G). But setting the network to 2G or 3G causes the issue. I tested the 2G and 3G in my Redmi Note 5 Pro and they are working in that phone so I believe it's not regional issue.
Anyway I will do a factory reset to check if it works(Tried settings reset and network reset. None of them resolved the issue).
subhad43 said:
I am using Airtel 4G. There is 4G in my region, the issue is I can call when its set to LTE (4G). But setting the network to 2G or 3G causes the issue. I tested the 2G and 3G in my Redmi Note 5 Pro and they are working in that phone so I believe it's not regional issue.
Anyway I will do a factory reset to check if it works(Tried settings reset and network reset. None of them resolved the issue).
Click to expand...
Click to collapse
I have the same combo and 2g calls works just fine.
Updated to the latest may patch.
mehra1 said:
I have the same combo and 2g calls works just fine.
Updated to the latest may patch.
Click to expand...
Click to collapse
I Did factory reset today. Its working fine now. Thanks for all the help

Xiaomi mi 9T Pro - Problems receiving calls while on 4G

Hello!
I hope someone can help me with this "little" problem that I'm experimenting with my Xiaomi mi 9T Pro running MIUI Global 10.3.3.0 (Stock) I checked everything before buying and the phone is fully compatible with my carrier (I'm from Venezuela), however, I noticed that when the phone is on 4G it switches to 3G/H/H+ in order to make/receive calls (which is pretty normal since my carrier does not support VoLTE). The problem comes when there is an incoming call, it should switch automatically to 3G/H/H+ BUT it does not happen all the time, in fact, I can say that it only happens 25% of the time when I was testing, of course, when it does not happen there is no way to receive the incoming call.
So far I tried:
- Forcing the phone to stay on 3G (everything works great)
- Testing the different network options (it switches from 4G to 3G but not always as it should)
- Switching from SIM slot 1 to slot 2
- At the moment the preferred network type is LTE/TD-SCDMA/UMTS (default)
Could it be a software issue? or could it be related to my carrier? I haven't tried using a SIM card from another carrier.
After all, I bought a PHONE that does not behave like an actual phone all the time, so, I hope someone can help me with this.
Thanks in advance.
Thank you, I almost thought I was the only one.
I bought my Xiaomi mi 9T Pro running MIUI Global 10.3.3.0 (Stock) a week ago and I have the same symptoms like you.
Im on A1 Network in Austria running default network settings and I realized after hours I couldn't make calls (and obviously did't receive any).
This is the first phone I had this network problems, and I am on A1 network for 20 years with different phones....
I hope someone can share some light why this happens and what are the best settings for European (Austrian) A1 network.
Trying to switch to LTE/UMTS, but that setting is always reset to the default above after reboot.
As its also my work phone it would be very bad not recognizing for hours that I'm not reachable...
Thank you !
A1 supports VoLTE, try to enable it on your phone, I have no issues running a dual SIM config with A1 and 3 .....
pietropizzi said:
Thank you, I almost thought I was the only one.
I bought my Xiaomi mi 9T Pro running MIUI Global 10.3.3.0 (Stock) a week ago and I have the same symptoms like you.
Im on A1 Network in Austria running default network settings and I realized after hours I couldn't make calls (and obviously did't receive any).
This is the first phone I had this network problems, and I am on A1 network for 20 years with different phones....
I hope someone can share some light why this happens and what are the best settings for European (Austrian) A1 network.
Trying to switch to LTE/UMTS, but that setting is always reset to the default above after reboot.
As its also my work phone it would be very bad not recognizing for hours that I'm not reachable...
Thank you !
Click to expand...
Click to collapse
Hi! It feels better knowing that I'm not alone.
The fact is that I can actually make calls (it take from 3 to 5 seconds switching from 4G to 3G/H), the problem comes when there is an incoming call, sometimes it works (it switches to 3G/H and when the call is ended, it switches back to 4G) but most it does not. I just tried LTE/UMTS and it does work but not for long, I can see that it happens and sometimes it does not. I found a "solution" which involves forcing to 3G/H but it's not the point, there should be a real solution. At this moment, I haven't found a correct network configuration, all the ones that I've tried just have worked for me for some time, and then the problem is back without even rebooting the phone. Could it be caused by a faulty SIM or it's just a network/carrier issue? I don't want to think that it's a hardware issue.
error23 said:
A1 supports VoLTE, try to enable it on your phone, I have no issues running a dual SIM config with A1 and 3 .....
Click to expand...
Click to collapse
Whats your ROM Version ?
I alreaddy tried to enable VoLTE, I can switch it on and the VoLTE Symbol appears.
The problem is - I have no caller ID. I don't even see the phone number when someone calls me ("unbekannter Anrufer" - "unknown caller")
That's not conveniant, so as soon as I switched OFF VoLTE caller recognition was enabled again.
Is VoWIFI working at you with A1 ? I can enable it but I don't get the symbot at home in my WIFI network.
So for now I see two options:
- the correct (stable) network configuration for Austria that persist in the phone configuration
- enabling VoLTE but with a solution for a working caller ID
I finally got found the solution
Problem is the notification settings.
This was somehow reset after the update to mui 11.
To fix the issue:
1. Go to settings
2. Click notification
3. Click the notification badges (3rd icon)
4. Find the "phone" icon
5. Enable the show notification
6. Exit to settings and test
Having same problem
Can someone help me I am from Malta and have Xiaomi mi9t pro and from last night stopped receiving calls and incoming . Tried with sim 1 and it worked but it happened again . I tried the notification settings but still the same problem .
I had trouble not receiving calls also...
After looking here, and also on YouTube, I started going through my phone again. I too was not getting my calls a lot, but I have only had my phone maybe 2 weeks, so there's not much on it yet. One thing I am always adding is themes. The theme feature is it's own pre installed app as I'm sure we've all seen. Different one's have been doing/blocking certain features at times on my phone. My husband's calls were being sent to voicemail, and some other important calls. I noticed the other day when I tried a new theme it locked me out of my phone with no preface to get back to the lock screen. I had to take a picture and select send to get back to the lock screen. Remembering this, I decided to go back to the original developer theme for the phone. My phone now rings. Original developer mode also controls the call feature, not just the theme, which I did not know or read until now. Going back to it I believe kind of reset my configuration. I would say give this a try for sure. Hope it helps someone else I love my phone and didn't want to lose it. FYI, I am on TMobile network in the USA.
Hi!
I have a very similar problem on a xiaomi redmi note 8t. I tried various settings, but failed. This is annoying because the phone is relatively new. I think it is a hardware problem.
Saulor said:
Hello!
I hope someone can help me with this "little" problem that I'm experimenting with my Xiaomi mi 9T Pro running MIUI Global 10.3.3.0 (Stock) I checked everything before buying and the phone is fully compatible with my carrier (I'm from Venezuela), however, I noticed that when the phone is on 4G it switches to 3G/H/H+ in order to make/receive calls (which is pretty normal since my carrier does not support VoLTE). The problem comes when there is an incoming call, it should switch automatically to 3G/H/H+ BUT it does not happen all the time, in fact, I can say that it only happens 25% of the time when I was testing, of course, when it does not happen there is no way to receive the incoming call.
So far I tried:
- Forcing the phone to stay on 3G (everything works great)
- Testing the different network options (it switches from 4G to 3G but not always as it should)
- Switching from SIM slot 1 to slot 2
- At the moment the preferred network type is LTE/TD-SCDMA/UMTS (default)
Could it be a software issue? or could it be related to my carrier? I haven't tried using a SIM card from another carrier.
After all, I bought a PHONE that does not behave like an actual phone all the time, so, I hope someone can help me with this.
Thanks in advance.
Click to expand...
Click to collapse
I have the same issue here in same phone but on EU MIUI 12.0.3.0 .. with the same symptoms u described .. i suspected in sim card and i replaced it with a new one and the issue still there .. did u find a solution for this issue?
I'm not sure if this is the same issue as what's described by OP, but it's somewhat similar (not receiving calls). Sometimes my colleagues will call me on Whatsapp and state that they're unable to reach me via the cellular network. This is what fixed it for me:
Settings - SIM cards & mobile networks - Select your sim card - turn off 'use volte (use volte to improve the quality of voice calls)'
scarmage said:
I'm not sure if this is the same issue as what's described by OP, but it's somewhat similar (not receiving calls). Sometimes my colleagues will call me on Whatsapp and state that they're unable to reach me via the cellular network. This is what fixed it for me:
Settings - SIM cards & mobile networks - Select your sim card - turn off 'use volte (use volte to improve the quality of voice calls)'
Click to expand...
Click to collapse
I tried this option and also not working the issue still there since 10 daysi also tried
Settings all specs then internal storage then sim 1 then change the setting to gsm only
After that the line working for 10 min and then again i can't receive calls or make ones
I have the same problem i have a redmi note 9 pro, i can't receive calls in 4G, i only can receive calls in Edge someone could resolve this? I tried all of these methods but nothing works

Question Mobile Data Not Working Redmi Note 10 pro 64mp version

Hey guys, I finally bought a Redmi note 10 pro like 2 days ago and the mobile data was working perfectly with no issues yesterday night. But today, it just stopped working. Nothing happens when I turn on the mobile data in the control center.
I tried resetting the APN and network settings but that did not work. Also tried restarting with same results.
Then, I tried switching between the LTE, 3g and 2g mode and the data started working only in the 2g mode.
It doesn't work when I switch back to 4g , it's such an annoying issue, especially because I haven't even used it for a week now. Can anyone tell me how to get rid of this problem, please?
Thanks in advance.
barryallen3038 said:
Hey guys, I finally bought a Redmi note 10 pro like 2 days ago and the mobile data was working perfectly with no issues yesterday night. But today, it just stopped working. Nothing happens when I turn on the mobile data in the control center.
I tried resetting the APN and network settings but that did not work. Also tried restarting with same results.
Then, I tried switching between the LTE, 3g and 2g mode and the data started working only in the 2g mode.
It doesn't work when I switch back to 4g , it's such an annoying issue, especially because I haven't even used it for a week now. Can anyone tell me how to get rid of this problem, please?
Thanks in advance.
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Click to collapse
i had this same issue a few weeks ago. for me the problem was solved by factory resetting the phone.

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