Issue with "Dropped" Calls - Sony Xperia XZ Premium Questions & Answers

I have a G8142 with the latest security patches/updates on AT&T.
I'm having a strange issue occur on probably one out of every two or three calls. After about 45-60 seconds of conversation, my mic will cut out. I can still hear the other person clearly. I can end the call (this is not instant - it hangs up for 3 to 5 seconds) and then call the person back and resume conversation normally.
A few notes:
It doesn't matter if I place the call or if I am called
The duration from beginning of call to cutting out fluctuates
My microphone diagnostic indicates it is working properly
The call does not seem to actually drop - it will go on for quite some time (with me able to hear the other person) until someone eventually hangs up
Calling the person back/being called back does not fix the issue (it can happen multiple times in a row with the same person/call sequence)
Signal strength is usually -80 or better
The phone functions flawlessly otherwise. There also don't seem to be any issues or drops with respect to the data connection, and SMS/MMS messages seem to get delivered immediately every time. The phone hasn't been dropped or exposed to any liquid. I have disabled some system apps (like Facebook), but none that seemingly have to do with making phone calls.
I have full bars most of the time. I force 3G+ on the phone, as the 4G+ (LTE) signal is weak in many areas. AFAIK that only affects data rates anyway.
It doesn't seem to happen as much if at all if I put the call in speaker mode. I have not used a bluetooth headset for calls to see if that fixes the issue.
Here's some things I've tried:
Rebooted the phone
Updated my IMEI with AT&T. I'm not sure if they actually did it (they stated it was "already changed") or if it makes a difference. My last phone was an unlocked Nexus 6p and did not have this issue. I did not get a new SIM for this phone.
Double-checked and redownloaded the APN settings.
I haven't tried voice calling through a third-party app, like hangouts or whatsapp, but I assume it would work just fine because it's being transmitted over data.
There is either a GSM/setting issue on my end, a settings issue on AT&T's end, or possibly a hardware issue (like a loose SIM, faulty mic, or bad antenna).
For now I'm at a loss, and any ideas would be greatly appreciated.
*** UPDATE ***
I've tried clearing the phone app cache and making sure that battery optimization is turned off for the app. I'll report back if this seems to fix it in case anyone is having a similar problem.
*** UPDATE 2 ***
That didn't work. Calls still drop intermittently. I've pretty much narrowed it down to a problem with the antenna, AT&T towers not particularly caring for the baseband firmware on this phone, or an issue with the dialer app. Performing calls over data (like Whatsapp/Hangouts/Duo) works flawlessly.
We'll see what happens if the phone app gets an update, or maybe after Sony releases the Oreo update.
For those US XZP users on AT&T or those that were considering buying this model, be aware this issue may affect you.
*** UPDATE 3 ***
Changing the mobile radio to 4G (preferred) instead of forcing 3G seems to have solved the problem.

Related

Raphael restarts on call when roaming / GPRS data

I have read many people have had problems with random phone restarts when making or receiving calls, but my issue is much more specific.
I'm surprised my Googling hasn't turned up anything on this problem, as my Touch Pro is running a stock rom (from 3 Australia), and issue was occurring before I installed any additional apps.
Issue as follows:
Model: HTC Touch Pro T7272 (Raph100)
ROM: 1.90.861.7 WWE
Radio: 1.02.25.19
Protocol: 52.33.25.17U
When connected to PC via USB and Windows Device Mobility Centre is active (the Vista version of Activesync), whenever an incoming call is answered, the phone restarts / reboots itself within a second of answering the call. I don't know if this also happens when making a call as I haven't tested that yet.
** Edit 1 **
I have now tested outgoing calls and the phone does not reboot / restart, so this problem is limited to incoming calls only.
** Edit 2 **
Restart also occurs when mail is syncronising over a GPRS/EDGE connection and an incoming call occurs. Appears issue is somehow related to Activesync or mail send/receive (in this case it was an IMAP mail account).
** Edit 3 **
I've found another reference to perhaps the same issue at http://forum.xda-developers.com/showthread.php?p=2827920 where the phone would reboot within 30 seconds or so of making a call when roaming. My house (the only place I've seen this issue now that I think of it), is in a roaming area for my carrier, so this may be the same issue. Mine definitely only reboots during a mail send / receive though (not sure if normal data transfer will cause this - haven't tested yet).
** Edit 4 **
Reboot occurs during ANY data transfer on EDGE/GPRS when an incoming call occurs. Tested by updating weather whilst calling phone from landline. It appears the Raphael doesn't know how to handle the fact that Voice and Data aren't supported on GPRS/EDGE simultaneously, so it just poos itself and reboots. Although I originally thought this was somehow related to an active WMDC connection via USB, my phone must have been syncronising mail via the GPRS/EDGE connection (as I'm roaming here), even though it was plugged in to the PC. I have now confirmed that so long as data isn't being transmitted via GPRS, calls can be received or made whilst it is plugged in via USB and Activesync/WMDC is active.
** End Edit **
As I do more tests I'll add more information to this post.
I'm experiencing the same problem here also.... I'm with 3 and when the phone is roaming on the Telstra network, it will reboot within 30 or so seconds of receiving an incoming call.
Just want to add that I can reliably crash the phone if I make an outgoing call whilst roaming (easily done, my house is in a roaming area for 3), and I go into my mail client and select send/receive... bang... restart.
Another 3 customer with same issue
Hi guys.. Just wanted to drop myself in as another user with the same issue.
I thought it was a doa handset and took it back but new one doing the same thing (when roaming)
Has anyone tried any other rom on it?
Cheers
I have a colleague with the same phone and ROM as me, so I will test with his device today to see if the same thing happens. I suspect the Network 3 Radio stack is dodgy, so I'll be letting 3 know about this as soon as I confirm whether this is happening on my friend's phone.
There's another person having this issue here;
http://www.1800pocketpc.com/2008/03/19/auto-disconnect-gprs-on-ppc.html
He says
# Marko Says:
October 5th, 2008 at 11:48 am
how do i hack the registry, so that when an incoming call is received, to turn of GPRS.
I have a problem with my network, when GPRS is downloading, and an icoming call is received -> the device restarts.
Thanks
Marko
Click to expand...
Click to collapse
Okay, have now tested this with my colleague's TP (which has same ROM, Same radio, same carrier and so-forth), and his TP DOES NOT RESET under the same circumstances!
This being the case, it looks like a hard reset is the logical next step as something must have gotten buggered up somewhere along the line!
Now to look up how to hard reset these things....
I'll report back with my results.
Okay, Hard Reset fixed it.
I read somewhere in XDA-Dev that a part of the OEM setup you see when you first start the device has already been completed (either by 3 or someone else further up their supply chain). I can confirm that after the hard reset, the setup process was slightly different (longer), than what I saw when I first turned the TP on out of the box. Whether this has any bearing on things I have no idea.
I will now begin the laborious process of installing and tweaking everything as per my requirements whilst testing this restart-on-call issue in-between each step to see if the issue arose because of something I did.
I'll report back either way.
After a day, and all software reinstalled, I don't seem to have this issue anymore. I can only assume that this was due to some setting / configuration which was made by 3 or someone else up the supply chain before I received the phone, or maybe one of the configuration scripts didn't run properly when I first turned on the phone. Either way it's working now.
Codenix.
guys, just letting you all know that my phone is a non-3 HongKong edition, it has RomeOS2 on it and the latest radio. I haven't tested it in a couple of days, but since mine hasn't been "touched" by Three, I doubt it has to do with their ROM or Radio
guys, just letting you all know that my phone is a non-3 HongKong edition, it has RomeOS2 on it and the latest radio. I haven't tested it in a couple of days, but since mine hasn't been "touched" by Three, I doubt it has to do with their ROM or Radio
Edit: and my phone is still crashing.
Mine crashed again on the weekend, so either the problem was intermittent when I did my testing the other day and didn't show itself, or something I've installed since then has caused the problem.
The only thing which springs to mind is the latest version of Google Maps which I installed on the weekend, and which I had also installed prior to noticing the reboot issue before my hard restart.
Thanks for your input Sawbones - at least this confirms that there's nothing specific to the Three ROM causing this.
I surprised many more people aren't also experiencing this problem. Perhaps most people rarely roam.
I have the touch pro and use this India. I have the same problem while roaming. I have installed BlackBerry Connect and whenever i am on EDGE or GPRS, the phone crashes and reboots when I receive an email while I am on an incoming call. I haven't found a solution yet.
- Radha
Codenix said:
I have read many people have had problems with random phone restarts when making or receiving calls, but my issue is much more specific.
I'm surprised my Googling hasn't turned up anything on this problem, as my Touch Pro is running a stock rom (from 3 Australia), and issue was occurring before I installed any additional apps.
Issue as follows:
Model: HTC Touch Pro T7272 (Raph100)
ROM: 1.90.861.7 WWE
Radio: 1.02.25.19
Protocol: 52.33.25.17U
When connected to PC via USB and Windows Device Mobility Centre is active (the Vista version of Activesync), whenever an incoming call is answered, the phone restarts / reboots itself within a second of answering the call. I don't know if this also happens when making a call as I haven't tested that yet.
** Edit 1 **
I have now tested outgoing calls and the phone does not reboot / restart, so this problem is limited to incoming calls only.
** Edit 2 **
Restart also occurs when mail is syncronising over a GPRS/EDGE connection and an incoming call occurs. Appears issue is somehow related to Activesync or mail send/receive (in this case it was an IMAP mail account).
** Edit 3 **
I've found another reference to perhaps the same issue at http://forum.xda-developers.com/showthread.php?p=2827920 where the phone would reboot within 30 seconds or so of making a call when roaming. My house (the only place I've seen this issue now that I think of it), is in a roaming area for my carrier, so this may be the same issue. Mine definitely only reboots during a mail send / receive though (not sure if normal data transfer will cause this - haven't tested yet).
** Edit 4 **
Reboot occurs during ANY data transfer on EDGE/GPRS when an incoming call occurs. Tested by updating weather whilst calling phone from landline. It appears the Raphael doesn't know how to handle the fact that Voice and Data aren't supported on GPRS/EDGE simultaneously, so it just poos itself and reboots. Although I originally thought this was somehow related to an active WMDC connection via USB, my phone must have been syncronising mail via the GPRS/EDGE connection (as I'm roaming here), even though it was plugged in to the PC. I have now confirmed that so long as data isn't being transmitted via GPRS, calls can be received or made whilst it is plugged in via USB and Activesync/WMDC is active.
** End Edit **
As I do more tests I'll add more information to this post.
Click to expand...
Click to collapse
Any luck so far? I have the same issue in India. I have tried every single trick that i know off including updating the ROM and flashing a new Radio (1.02.25.28 - saw it in another thread that this is a good and stable Radio Version.). It is very annoying that everytime i receive a blackberry email when i am on a call the phone would reboot
-Radha
No luck here. I thought the reset had fixed it, but perhaps my testing wasn't very good as I had to force my phone to roam, unlike when I am at home and I'm outside my provider network area.
I'm surprised more people aren't reporting this issue though.
Surprising indeed. Not many are complaining about this it looks like. I have been searching the Internet relentlessly to see if anyone has solved this but to my bad luck there is none.
The phone crashes if i receive a call while i am updating my weather. So far i have tried the following Radios:
1.01.25.16
1.02.25.11
1.02.25.19
1.02.25.28
1.02.25.27
1.02.25.31
1.02.25.32
The phone crashes on the said problem consistently. I even recently updated my ROM to ROMeOS 1.40 and repeated the above Radio's to verify. I am able to reproduce this problem with:
* Blackberry Connect receiving emails while on the call
* ActiveSync Receiving emails while on the call
* Updating Weather
Basically any data connection being active.
I am extremely frustrated with this phone and thinking of dumping this phone and go back to my TYTN II (Kaiser) which was perfect and worked with EDGE/GPRS and BlackBerry flawlessly.
- Radha
+1 Here, tried different ROMS, different radios and even different SIM cards, I guess it's goin back......
Same here guys. Im on 3 and when I roam to Telstra GSM it dies very soon after. This is very annoying and HTC should fix this as a matter of urgency.
Rename thread to "Raphael restarts on call when roaming"
Can a moderator please rename this thread? The issue is not related to wmdc as I originally thought.
Thanks.
Codenix.
Happening to me as well (and i am trying to support 4 others in our business).
If only 3 would have some bloody coverage it wouldnt be such a problem.
Has anyone tried the new ROMs for Optus/Vodafone?
Or could it have something to do with turning on/off HSDPA?
Is there a way to stop data connections when roaming? so at least we could use it as a normal phone when roaming.

I cannot make calls with my G2x

This is my second G2x and both have exhibited the same behavior. It will dial a number, whether from the phonebook or the dialer itself, and the phone application will say that it is dialing. After 30 seconds or so, and no ringing on the other end of the line, the call ends itself.
I usually have to enable Airplane mode, then disable it, to be able to make a call. sometimes I have to go as far as rebooting the phone completely after which it may or may not work. Incoming calls fail as well so I am missing quite a few calls and texts...but thhe emails and other data messages come through.
Oddly, data works perfectly regardless of whether the phone is having problems calling. This happens in 2g as well as 4g. I have manually selected 2g and could not call and had the same trouble in WCDMA only mode. I thought it was related to Wifi calling but enabling that has no effect.
Any ideas? I am trying my other line to see if that SIM card is having trouble. I just have no other ideas at this point.
pinhead said:
This is my second G2x and both have exhibited the same behavior. It will dial a number, whether from the phonebook or the dialed itself, and the phone application will say that it is dialing. After 30 seconds, no ringing on the other end of the line, the call ends itself.
I usually have to enable Airplane mode, then disable it, to be able to make a call.
Oddly, data works perfectly regardless of whether the phone is having problems calling. This happens in 2g as well as 4g. I have manually selected 2g and could not call and had the same trouble in WCDMA only mode. I thought it was related to Wifi calling but enabling that has no effect.
Any ideas? I am trying my other line to see if that SIM card is having trouble. I just have no other ideas at this point.
Click to expand...
Click to collapse
happened to me today too. I have had the phone since March 20th and I have too reboot to make it work. No idea what could it be.
Sent from my LG-P999 using XDA App
I used to have this problem frequently on my MT3G. Since someone else is having this problem on a different phone, I would guess that it's something software related.
Alright, it is happening on both of my lines. It might be a program that I installed so I am loading them back on one at a time to see if can determine which it is. I am looking at either Google Voice or Beautiful Widgets as likely culprits at this time but there is not certainty. I have also avoided installing Facebook and Twitter. I am able to make calls right now. I will see if this keeps working for the next few hours...maybe through to my morning coffee. I really hope it is an application, something I can do without, because it would be pretty bad if it is the phone. My girl just ordered one of these as well since she likes mine so much.
pinhead said:
This is my second G2x and both have exhibited the same behavior. It will dial a number, whether from the phonebook or the dialer itself, and the phone application will say that it is dialing. After 30 seconds or so, and no ringing on the other end of the line, the call ends itself.
I usually have to enable Airplane mode, then disable it, to be able to make a call. sometimes I have to go as far as rebooting the phone completely after which it may or may not work. Incoming calls fail as well so I am missing quite a few calls and texts...but thhe emails and other data messages come through.
Oddly, data works perfectly regardless of whether the phone is having problems calling. This happens in 2g as well as 4g. I have manually selected 2g and could not call and had the same trouble in WCDMA only mode. I thought it was related to Wifi calling but enabling that has no effect.
Any ideas? I am trying my other line to see if that SIM card is having trouble. I just have no other ideas at this point.
Click to expand...
Click to collapse
Happened to me twice today, first in the AM and then again around 2200 central time. i recently started using setcpu so not sure if thats an issue or not. anyone find the app responsible?
Yes, it has happened to me too, usually after it is in standby or idle, and this is my second phone. But my second phone not happens as often as the first one. Reboot is the only way I can get it to work. I notice that the signal is very weak only 1 or 2 bars.
That is a very good point to mention...that it is almost always directly after bringing the phone out of standby. Mine just did it again.
Same problem here. I don't even know how many calls or txts I've missed since.
Had this issue with my N1 and I always chalked it up to cruddy radio and/or coverage. I've since had it on my g2x once or maybe twice I think (had g2x for 3 days now), but at least after it timed out I was able to try again and the call would go through. With my N1 it would never recover unless I toggled airplane mode or sometimes even needed to reboot.
I hope there are some improvements in this area, because bad radio was my biggest gripe with my N1, and i really want to love this phone!
Sent from my LG-P999 using XDA App

Anyone else missing calls?

I'm having a bit of a strange issue. Not sure if it's related to charging or not, but I have missed at least 3 calls with no notifications only to get a voicemail notification. I believe the first two happened on the charger and the third just happened a little while ago definitely on the charger. Most calls seem to come through and my apartment can be a bit of a reception nightmare; however, my signal is always 3G at home to negate that and this wasn't an issue on my old phone. It seems that my device randomly drops onto a 2G not my network occasionally(Bell/Telus don't have 2G gsm towers, only Rogers). Roaming is disabled which would explain why I would miss the call entirely, but every time I check my phone, it's registered on the network it should be with 3-5 bars of signal
I get a lot of phone calls from work so it can be a bit frustrating... Thankfully they always leave a message. Anyone else missing calls?
Are you using a wireless charger? I've heard claims that wireless charging can interfere with signal. I can't confirm it for myself as I very rarely get phone calls, but I certainly haven't received any calls while wireless charging. I don't have voicemail either, so I could be in the same situation and not know it. :silly:
Yes. I am having the same issues of calls not coming through, but only being notified if a voicemail has been left. Though my issue does not just happen when my phone is being charged. I went into USCC and the associate could not replicate it as it occurs randomly. She called tech support and they could not come up with an answer. The associate when on to say it was the callers phones causing the problem and not mine. Yeah, right.
missed calls
I have a galaxy s6 active on AT&T and I'm experiencing the same issues. It has happened while my phone is not on or near any chargers. It also had full reception as I was in the same room as my AT&T microcell. My wife asked if I heard my phone ring, but it didn't when she called. She tried calling it while I was next to her. Her phone dialed and rang, but my phone had no incoming call. I also tried calling her right back, but it would not dial at all. I just purchased the phone and will quickly be taking it back to exchange for something else if I continue missing calls . Has anyone gotten feedback?
It happens to me. Usually when I'm in a building with a metal roof., but not always. It's random.
Sent from my S6 using Tapatalk
Me too
Just upgraded my S3 to S6 and I've been nothing but issues with missed calls. I'm usungOtter box case on my phone. My phone could be right next to me in the house or be in the charger and I'd miss the call. It never happened to me...ever in my house.
I haven't called Samsung yet for support. Not sure what they're going to say.
I had the same issue but it is rare. Updated my firmware helps with the signal.
Got a lot of missed calls on XtreStoLite 2.2 (see details at bottom) and sometimes answering calls not working too.
Was on a fresh original firmware before flashing rom.
I just updated to 2.4. Hope is related to Baseband Version. Will report later if still got same issue.
CSC INFO
Product Code: SM-G920FZKETPH
Original CSC Code: TPH
Firmware's CSC Code: BTU
Active CSC Code: TPH / BTU
Available CSC Codes: BTU
CSC Country: UK & IRE
CSC Country ISO: GB
FIRMWARE INFO
Bootloader Version: G920FXXU2BOG8
PDA Version: G925FXXU2BOGG
CSC Version: G925FOXA2BOGB
Baseband Version: G920FXXU2BOGE
Latest Firmware:
Kernel Version: 3.10.61-S6_UniKernel_v6-0001_rb [email protected] #1 64-bit
OS INFO
Root Existence: Yes
Android Version: 5.1.1
Build Number: XtreStoLite Deo Mod v.2.2 - XXU2BOGG (G925FXXU2BOGG)
Build Fingerprint: samsung/zeroltexx/zerolte:5.1.1/LMY47X/G925FXXU2BOGG:user/release-keys
Build Description: zeroltexx-user 5.1.1 LMY47X G925FXXU2BOGG release-keys
s.rapp said:
I'm having a bit of a strange issue. Not sure if it's related to charging or not, but I have missed at least 3 calls with no notifications only to get a voicemail notification. I believe the first two happened on the charger and the third just happened a little while ago definitely on the charger. Most calls seem to come through and my apartment can be a bit of a reception nightmare; however, my signal is always 3G at home to negate that and this wasn't an issue on my old phone. It seems that my device randomly drops onto a 2G not my network occasionally(Bell/Telus don't have 2G gsm towers, only Rogers). Roaming is disabled which would explain why I would miss the call entirely, but every time I check my phone, it's registered on the network it should be with 3-5 bars of signal
I get a lot of phone calls from work so it can be a bit frustrating... Thankfully they always leave a message. Anyone else missing calls?
Click to expand...
Click to collapse
Same story with full LTE signal, wifi calling off. Incoming calls fail to reach my phone most of the time but outbound calls always work.
At my office a majority of my incoming calls do not come in... the people calling me report it "rings" 2 times and goes to my voice mail. The phone does not ring, show any notification a call is inbound, nor does it list the calls in the log.
Voicemail notification and SMS are the same story... I sometimes get a text message 30 minutes after it was sent by the person when the inbound cell stuff decides to start working.
Now if I make an outbound call, inbound calls and sms will arrive no problem for about 30minutes to an hour... but it eventually goes back to missing incoming messages.
I've gone through the agony of customer/tech support, switching on/off VoLTE, Wifi calling, call banning, Do not disturb, etc. but no luck. The phone seems to go into some suspend mode with the tower and nothing can get in .
95% of missed call issues are carrier based. You may want to talk to your carrier about putting in a network ticket or about getting a replacement sim.
That said, OP specifically, try putting your phone in safe mode when charging and see if it continues.
I forgot to mention this is a tmobile-branded device.
I was able to confirm that this is a baseband firmware issue (G920TUVU3D0I1) that incoming calls are missed and texts are substantially delayed after a certain amount of screen-off time. My original device and first replacement had this baseband version and had the same issue on two different sim cards.
The only solution is to get a device with the older baseband version (G920TUVU2COF8) which my second replacement had and has been working trouble-free ever since.
Patch coming to 5.1.1
Rogers just confirmed there is indeed a problem with the latest 5.1.1 causing the SMS and call issues and a fix is coming 11/16. We'll have to see when the other carriers push this out
http goo.gl/6sTIQ8
ShoonMcgregor said:
Rogers just confirmed there is indeed a problem with the latest 5.1.1 causing the SMS and call issues and a fix is coming 11/16. We'll have to see when the other carriers push this out
http goo.gl/6sTIQ8
Click to expand...
Click to collapse
Tmobile is rolling out G920TUVU3DOJ7 tonight, hope this is the same fix Rogers discussed on their forum
Before i start I'm not saying any of you are involved in any criminality but incase you are worried about your privacy/security in any way shape or form its worth considering what im saying, I'm sure you all know of ed Snowden revelations and you know that L.E. have the capabilities to remotely activate your phones mic. A friend of mine has been in this situation where when in a sensitive situation altough having full signal and in an open space and where not able to recieve any calls as the mic was already being used by some unknown entity. In these situations if my friend tries to make a call it doesn't go through the first try, it doesn't even go to answer service just cuts out. Next time he tries to ring out it goes straight away. Him making the first call cuts them off from listening through his mic. Things have then happened after some of these conversations that would have been impossible without the monitoring .
Again I'm sure none of you are involved in any dodgy dealings but it's worth knowing if your conscious of your privacy.
Sent from my SM-G920F using XDA Free mobile app

Verizon incoming call issue. Anybody else?

I am on Verizon and have CDMA-Less profile enabled. However, my incoming calls (and some outbound calls) are often not working. What i mean by this is that I hear the person on the other end of the line as garbled noise, not necessarily static, but more just jumbled electronic noises. The other person says I sound fine. Hanging up and calling back doesn't resolve the issue. If i voice call over Duo it works. Running latest 9.5.11 and the update still didn't solve the issue. This doesn't occur all of the time, but it is more often than not.
I see no one has replied and my reply won't be much help but let you know I've had my OP7 pro since release on Verizon with no issues at all after the CDMA less setting. Possibly toggle on and off the air plane mode after it happens and try the call back. Just a shot maybe.
Try calling Verizon and get them to sync the account. There might be some configuration error on the billing/technical side. I've seen this work for a couple people who described the same issue you are currently having.
Just an update. I went to Verizon and had a new SIM installed. Did a couple test calls using the phones there without issue. Attempted calling my wife and issue sprung up again calling her S10+. Tested calling their S10+ in the store without issue. Tried calling wife again and had the same problem.
Later went to another Verizon store and could not duplicate the problem, but switched her SIM card anyway.
Did a little research on the S10+ and it seems the problem may be related the phone set to Global vs. LTE/CDMA. Changed her setting to LTE/CDMA and haven't had the issue happen. Calls also seem to sound better too when i call her.
Very strange all around.

Incoming/Outgoing calls frequently stops on OP7

I am on the latest update of OP7 . I have noticed, that often I lose the ability to make or receive calls. If I call any number, it will disconnect with one tone, incoming callers hear my phone is switched off. Although I never notice this as my phone shows full network coverage unless I make a call myself. I have to toggle airplane mode to fix this or clear the phone management system app. I am not the only one who is facing this issue, other users facing the same. I do not think this is a hardware issue, but more like a software issue (I have a feeling it has been deliberately done, to force users to upgrade).
wickedspice said:
I am on the latest update of OP7 . I have noticed, that often I lose the ability to make or receive calls. If I call any number, it will disconnect with one tone, incoming callers hear my phone is switched off. Although I never notice this as my phone shows full network coverage unless I make a call myself. I have to toggle airplane mode to fix this or clear the phone management system app. I am not the only one who is facing this issue, other users facing the same. I do not think this is a hardware issue, but more like a software issue (I have a feeling it has been deliberately done, to force users to upgrade).
Click to expand...
Click to collapse
Just Format your device for once and it will be fixed

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