Unknown Caller when using LTE - Xiaomi Mi A2 / 6X Questions & Answers

Hey!
I am using Havoc OS since I've bought this phone. But it does not matter what OS I am using, problem is still there.
When I am using LTE, every incomming call is shown as Unknown Caller. I've tried different SIM cards, I went to my service provider, they don't know anything, and never seen issue like this. Once I switch back to HSDPA or even EDGE, I can see incomming calls fine.
I've tried clean flash. I went back to stock and nothing has changed. I flashed stock with MiFlash, still same issue.
I am running out of ideas. Please help me, any advice will be usefull!

Related

problem with phone network and dropping calls

hi,
I am facing a problem with my kaiser.
I've been having it for 1 year now, changed lots of roms and was working perfectly.
Suddenly now i am facing problems with the phone.
I am having a full signal but when they call me most of the times it doesn't ring and after 4-5 minutes i receive a message from my provider that i have missed calls.
Also when i call someone the phone hangs up after 1-2 minutes of conversation.
There are times that is loosing signal, can't find network etc..
I am facing lot's of strange problems, i tried changing all kind of Radios and ROMs but nothing fixed this problem
Anybody has an idea?
Well, I know this isn't too helpful, but can you try your sim in another phone to see what happens?
Oh and can you share more about where you are and whats on your phone?
hi and thanks for your reply
i am from Cyprus using the CYTA-VODAFONE provider.
i have the PDAcorner Ultimate v2 ROM installed but as i have stated above, i have tried also other ROMS including the original rom that was originally installed on the phone.
What radio do you have installed?
i tried from 1.65 many version to 1.71..
finaly the local htc service center told me that the problem is with the power module chip, and that is not replaceable.
anybody knows if this is right?

Emergency call only

The phone was working pretty fine 30 min ago when i flashed Darky's 8.0 ROM , when I took it out to make a phone call and it says just "Emergency call only" instead of showing my phone operator (BSNL 3G). I tried rebooting, no luck! Still the same. I replaced the sim with operator (TATA DOCOMO) i got same thing Emergency call only".
Now the Strange thing is that it has signal (full) but I can't make/receive calls . If I go under Settings -> Wifi -> Mobile networks settings and I look for operators it searches and I can see all of them (mine included) but I cannot select it!! Neither mine nor another one ...it just says "Unable to connect. Try later".
Weirdest thing of all is that I AM RECEIVING PUSH EMAILS from gmail!!!
I can browse internet and market. Twitter application is working.
Anyone has a clue about this??? Has it ever happened to anyone?
I have reflashed again with Darky's Rom 8.0 and the Stock ROM but still Emergency call only".
Hope I don't have to reflash some other ROM...
what is your modem? Darky's one?
Sounds like your phone is IMEI locked!? Did you buy a used one? May be stolen.
Sent from my GT-I9000 using Tapatalk
borelis said:
Sounds like your phone is IMEI locked!? Did you buy a used one? May be stolen.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
I bought the new one. The problem started after installing voodoo lagfix my IMEI number was gone. I deleted some of the files in /efs folder , installed Darky's 8.0 ROM every thing worked for a while & again there was not data connection.
When i delete the files in /efs folder i can see the Operator Name for some time..
So you did messed up with your EFS? (Which is i think horrible thing to do when not have a backup of EFS)
try to install the modem file from your latest "official" rom (look into samsfirmware.com)
is your imei the same or changed
the only instances ive seen when you cant call or message but can get data is when the imei is blocked
regards
emergency call only
dalco said:
The phone was working pretty fine 30 min ago when i flashed Darky's 8.0 ROM , when I took it out to make a phone call and it says just "Emergency call only" instead of showing my phone operator (BSNL 3G). I tried rebooting, no luck! Still the same. I replaced the sim with operator (TATA DOCOMO) i got same thing Emergency call only".
Now the Strange thing is that it has signal (full) but I can't make/receive calls . If I go under Settings -> Wifi -> Mobile networks settings and I look for operators it searches and I can see all of them (mine included) but I cannot select it!! Neither mine nor another one ...it just says "Unable to connect. Try later".
Weirdest thing of all is that I AM RECEIVING PUSH EMAILS from gmail!!!
I can browse internet and market. Twitter application is working.
Anyone has a clue about this??? Has it ever happened to anyone?
I have reflashed again with Darky's Rom 8.0 and the Stock ROM but still Emergency call only".
Hope I don't have to reflash some other ROM...
Click to expand...
Click to collapse
same problem with me . my canvas 4 shows emegency call only .. its happened after restore of imei .
how to fix that problem

[Q] Samsung Captivate calling problem on the 3 (Three) Network

I have brought two phones to the UK. Both of them are Samsung Captivates, one of which has Eclair, and the other has Froyo. I recently purchased a SIM card from the 3 (Three) Network and except for a small APN problem. Everything seemed to be working fine. Recently, I've been periodically unable to make calls from either of the phones. Text messaging and internet over the 3G network work fine, but when I try to call, it looks as though it connects, but I can't hear anyone and they can't hear me. If a friend calls me, I do see an incoming call on my phone, but when I pick up, we can't hear each other. I've noticed that when I reboot my phone after having the SIM card removed for a while, it connects for the first call made, and both people can hear each other, but after that first call, it goes back to not working. Has anyone here had a similar issue, or have any idea what could be causing this?
By the way, I was on the phone with 3 (Three) customer support, and they had me completely reset one of the phones, and the problem still happened. Also, I put in a SIM card that I knew was working, so it seems to me that it must be some weird compatibility issue with the Captivate, although I can't imagine why, because it's a phone almost exactly like the i9000 in Europe and the UK, and should be able to work fine with any network.

Galaxy S not making or receiving calls or txt’s using XXJVT/XXJVS Rom HELP!

Hi all, I have been using the Stock Extra from the here for a number of weeks now with no issues. Until yesterday when my galaxy s stopped making or receiving calls or text messages, I get an error message saying text not sent & when I try to dial out it goes straight to call ended. I have tried a restore which didn’t help and I have even went back to XXJVS Rom 2.3.5 but still no calls or texts ! I rang Virgin mobile yesterday and they did all the usual checks and they said it must be a setting on the phone causing the problem as they cant see anything being blocked or barred. When I use my card in another phone it works fine ! My wife’s sim card wont work in my phone either so it has to be the phone ! Does anyone have any ideas what could be causing this problem? I am Desperate now I have only had the phone 3 months!
These are my settings now on XXJVSModel No
GT-I9000
Firmware version 2.3.5
Baseband Version I9000XXJVS
Kernel Version [email protected] #2
Build No GINGERBREAD.XXJVS
Cheers in Advance DGC808
dgc808 said:
Hi all, I have been using the Stock Extra from the here for a number of weeks now with no issues. Until yesterday when my galaxy s stopped making or receiving calls or text messages, I get an error message saying text not sent & when I try to dial out it goes straight to call ended. I have tried a restore which didn’t help and I have even went back to XXJVS Rom 2.3.5 but still no calls or texts ! I rang Virgin mobile yesterday and they did all the usual checks and they said it must be a setting on the phone causing the problem as they cant see anything being blocked or barred. When I use my card in another phone it works fine ! My wife’s sim card wont work in my phone either so it has to be the phone ! Does anyone have any ideas what could be causing this problem? I am Desperate now I have only had the phone 3 months!
These are my settings now on XXJVSModel No
GT-I9000
Firmware version 2.3.5
Baseband Version I9000XXJVS
Kernel Version [email protected] #2
Build No GINGERBREAD.XXJVS
Cheers in Advance DGC808
Click to expand...
Click to collapse
Did you try a reflash with Odin? Never seen this problem before.
Hi Paulforde, Yeah tried re-flashing with Odin but no change
Cheers
Try a different modem firmware...
I had several issues with several different ROMs but in most cases anything to do with calls, data, wifi, GPS, or BT were solved by flashing a different modem... I didn't notice which country or carrier you're using but I'm in Canada using Rogers and the best modem I've found for signal strength, and keeping all of the other radio related functions working has been UGKC1 This is dependant on where you are and who your carrier is though.
You can find most of the Froyo and Gingerbread modems here http://forum.xda-developers.com/showthread.php?t=876391
Hope this helps,
Jamie
I have this exact problem with a Galaxy S I just got back from a RMA - the antenna was dodgy or something and it would get poor signal everywhere. Now signal is fine but it won't make texts/calls, again not the SIM.
Does your mobile internet work? Mine does which is weird..
Have you also checked your APN settings??

"Call ended" right after dialing

First of all, I want to say that I found people with the same issue using Android everywhere and with a lot of different phones, so it's probably an Android bug rather then Moto X itself, but I wanted to leave my report.
I came from an S3, which suffered from the same problem when using Cyanogenmod. When using official Samsung ROM everything worked as it should. Now, I'm getting the same issue on my brand new Moto X.
When I try to call someone, sometimes it just doesn't call, after I press the dial button, it just hangs (without ringing) and finished the call with a "Cal ended" message. It happens randomly, and sometimes I can't call anybody for like 2/3 hours.
The simcard has been changed from the S3 (micro) to the Moto X (nano), so it's probably not it. Also, with the Samsung ROM it didn't happen.
I can still receive calls and messages, and the signal strength is fine most of the time. I just can't call.
Today I faced this problem and then I tried calling from my girlfriend smartphone (samsung ace IIx) at the same time, which is from the same carrier, calling to the same number, and it just worked fine. Mine still didn't work though.
Here is a thread on people on xda facing the same problem, but with a different phone: http://forum.xda-developers.com/showthread.php?t=2351227
Don't know what to do.
i've had the call not go through as you've described, but have never had a phone not let me place "any call" afterwards. i always chalked it up to poor performance (limited RAM, too many processes, etc). My DROID3 would do it and often times when it finally did make a call, there was zero sound and I would have to reboot the phone.
640k said:
i've had the call not go through as you've described, but have never had a phone not let me place "any call" afterwards. i always chalked it up to poor performance (limited RAM, too many processes, etc). My DROID3 would do it and often times when it finally did make a call, there was zero sound and I would have to reboot the phone.
Click to expand...
Click to collapse
Hmm, it doesn't seems like poor performance. I ended up every task and it still happened.
However, I noticed that when I check the "2G ONLY" option it comes back to work. Maybe it's something with the HSPA/HSPA+ connection.
it could be completely carrier dependent then. my experience has been with vzw.
Moto X "Call Ended"
I have experienced this same problem in Houston on the T-Mobile network after switching over to Android. My T-Mobile rep told me they have had towers vandalized for copper which has impacted service for them, I believe he said it was about 15 towers and 10K a pop to get things corrected. What gets me is I was on a Bold 9900 and while I had signal problems in the affected areas of town I didn't not experience the "call ended" issue. I can also call other T-Mobile phones from those same areas but not land lines so to me this seems like a possible network routing issue which I have seen before between specific carriers.
If the problem does continue I may have to switch carriers. T-Mobiles service was previously outstanding in Houston but recently had not been great after the 4G LTE upgrades. I support multiple hospitals and need service to work correctly and will work with the T-Mobile Engineers to see if I can make headway on that front. I noticed another MotoX user reporting he only had the issue when flying in to Houston for work and that everything worked for him outside of Houston. His solution was to operate in 2G mode which for me is really not an option. I have to handle a lot of tasks over the network while on calls.
Anyways I would appreciate it if others could post if they are experiencing these issues and give as many details as possible so we can try to isolate the root cause of this problem and if found to be a carrier issue we can escalate with them. Thanks
dicarli said:
First of all, I want to say that I found people with the same issue using Android everywhere and with a lot of different phones, so it's probably an Android bug rather then Moto X itself, but I wanted to leave my report.
I came from an S3, which suffered from the same problem when using Cyanogenmod. When using official Samsung ROM everything worked as it should. Now, I'm getting the same issue on my brand new Moto X.
When I try to call someone, sometimes it just doesn't call, after I press the dial button, it just hangs (without ringing) and finished the call with a "Cal ended" message. It happens randomly, and sometimes I can't call anybody for like 2/3 hours.
The simcard has been changed from the S3 (micro) to the Moto X (nano), so it's probably not it. Also, with the Samsung ROM it didn't happen.
I can still receive calls and messages, and the signal strength is fine most of the time. I just can't call.
Today I faced this problem and then I tried calling from my girlfriend smartphone (samsung ace IIx) at the same time, which is from the same carrier, calling to the same number, and it just worked fine. Mine still didn't work though.
Here is a thread on people on xda facing the same problem, but with a different phone: http://forum.xda-developers.com/showthread.php?t=2351227
Don't know what to do.
Click to expand...
Click to collapse
Call Ended Issue Resolved
Hi All,
I see this Call Ended Issue in many brands. So I assume the error is a combination of the Network along with the SimSlot.
I tried various combinations for my Moto-E mobile.
Before i post the solution i found, Let me provide a brief about the problem.
I use Vodafone network on sim1 slot and Uninor network on Sim2 slot. I started facing the call ended issue on my sim 1 vodafone network.
I inter changed the sim's and found the network working absolutely fine. This makes me to understand that the sim1 slot with the vodafone carrier has some network issue where that IMEI code has some problem.
i tried to place the vodafone sim again on the sim 1 slot and found the problem persists. So i came to that conclusion.
Hope this might help you and provide a instantaneous and temporary resolution.
Thanks,
Praveen.
Call Ended problem still going...
Hey,
I just rooted my Moto X (XT 1053), like 5 min ago, in the hope to fix this same problem. I`m no programer/developer and have nothing against rooting, I just don`t think I`m that kind of user. Anyway, about a week ago my phone started to drop my calls right after dialing. I restored factory settings, updated it and nothing worked. I took it for service and they offered to charge me 150 bucks to restore factory settings and update the software. So I was kinda forced to root and try to fix it this way. The problem is that I probably don`t understand half of what you guys say, so if there are any kind souls out there, please help me out.
To sum it up:
- No Sim Card error
- I get carrier services and can use mobile internet (3G because 4G is still too explensive here in Brazil)
- Directly drops my calls
- Won't receive calls
- Won't send or receive text messages via carrier (just over 3G or wifi)
I`ve tried another carrier's Sim Card, no go.
I`ve tried my Sim Card on another phone and it worked just dandy, so I really don`t think it`s carrier related.
I`m running Android 4.4.3, as the other updates weren`t available for my phone via Motorola. I thought maybe updating to a newer version of Android might do the trick. I just have no clue on how to do that on a rooted phone... or on a non rooted phone for that matter.
Can anyone give me any tips/pointers/etc... ?
Thanks!
I have the same issue with my moto x on Verizon. Have you been able to figure it out?

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