Develop Bugs

[Q] Is Wifi Calling Missing in CM7 on purpose?

I've done several Google searches on this topic as well as focused searches on the CM and XDA forums; I figured it was time to just ask the question myself.
So I noticed that Wifi Calling started missing in in the CM7 nightlies sometime after #21. I ran across someone from the CM forums who saw theirs returned after his upgrade from #28->#30 (which I did not see on mine even after a full wipe).
Is there a setting or condition on my phone that prevents me from seeing/activating this feature?
Thanks in advance,
Reg

I've been running CM7 since build number 0 and now I'm on build 31, I have flash every nightly released and have always had wifi calling on every single build.
Sent from my HTC Vision

joemm said:
I've been running CM7 since build number 0 and now I'm on build 31, I have flash every nightly released and have always had wifi calling on every single build.
Sent from my HTC Vision
Click to expand...
Click to collapse
So I did a clean install of #21, which had wifi calling, but when I upgraded to 22, it was gone. Might anyone else know what I can do to install?
Thanks,

When you are upgrading, what are you wiping? You only need to wipe cache.
Sent from my HTC Vision

joemm said:
When you are upgrading, what are you wiping? You only need to wipe cache.
Sent from my HTC Vision
Click to expand...
Click to collapse
I've tried multiple things: cache wipes, no wipes, "clean" installs, manually formatting each mount point. None of that matters for me. Wifi calling only shows up in builds up-to-and-including 21; after that, it just vanishes.
Thanks for trying though, dude.

As i installed the CM 7.0.0-RC1 with Nightly version 2. and i found the same thing means WIFI is not working but when i press the power button and found the option REBOOT and select this option and then again i select the option REBOOT, Phone rebooted and then turn on wifi and it started working. so all you have to do is to Reboot the phone as i said. you will hopefully find your WIFI option working.
as i had the same.

wasie said:
As i installed the CM 7.0.0-RC1 with Nightly version 2. and i found the same thing means WIFI is not working but when i press the power button and found the option REBOOT and select this option and then again i select the option REBOOT, Phone rebooted and then turn on wifi and it started working. so all you have to do is to Reboot the phone as i said. you will hopefully find your WIFI option working.
as i had the same.
Click to expand...
Click to collapse
Yes, it is well known that a first reboot is required to get WiFi working on CM7 right now. OP's question, however, is about the missing WiFi calling application.
OP, that's very interesting that it won't show up. So if you do a clean full wipe and install of something like RC1 or higher, you still don't get WiFi calling? Mine has been in there on every build... hmm..

I did'nt Wipe the Cache , I did the reset factory settings option. and install the CM7.0.0-RC1 with nightly version 2. and after done i found the wifi option is not working.
as i told when i rebooted the phone and i found the wifi option working.

Do you have a g2 or a desire z? I am looking at the changelog right now and it says that wifi calling is only installed on the g2. I'm assuming that you have a g2 since you are asking about it, but just throwing my 2 cents.
Maybe the rom is thinking that you are running a Z instead of a G2. Idk. It might help. More than likely not, but it's worth saying IMO.

martonikaj said:
Yes, it is well known that a first reboot is required to get WiFi working on CM7 right now. OP's question, however, is about the missing WiFi calling application.
OP, that's very interesting that it won't show up. So if you do a clean full wipe and install of something like RC1 or higher, you still don't get WiFi calling? Mine has been in there on every build... hmm..
Click to expand...
Click to collapse
I know what you are saying . but i tried everything after that i said so that wifi calling is working. as you find the WIFI connection then go the wifi calling app and then enable it and connect to tmobile network so that you can use it. but if you are in such area where Tmobile network's service is bad then might there be a chances to have no connection with wifi calling even if you have connected to wifi network (Internet)

wasie said:
I know what you are saying . but i tried everything after that i said so that wifi calling is working. as you find the WIFI connection then go the wifi calling app and then enable it and connect to tmobile network so that you can use it. but if you are in such area where Tmobile network's service is bad then might there be a chances to have no connection with wifi calling even if you have connected to wifi network (Internet)
Click to expand...
Click to collapse
now i am store working and i have a wifi at my job too. so i connect there carefully once again and checked everything and when i open to the wifi calling app and connect to T-Mobile Network for wifi calling i see after connecting to Tmobile via wifi radio signals turn to zero and when i disconnect it singals first had a 'x' on it and then they turn green. so make sure you are using the tmobile network then you will be able to use wifi option.

[GUIDE] [HOW TO] Fix VS986 dropping down to 3G/H+ from 4G LTE

I've been working on a fix since a long time now. If you are in SD community then you prolly know me. Anyway I was able to fix this on two of my phones and it's working fine. I tested for 12 hours now. I'll also tell you in the end what problems I'm seeing. I'm also working on a fix for that.
I noticed that a service is started when the fallback happens but if I kill that service the network also dies. But if you follow the below method it safely starts a new service which kills the one that's responsible for killing the 4G/LTE
1. Upgrade your phone to 13B firmware
2. Root 13B
3. Now download Shortcut Master lite app from play store.
4. Now add these shortcuts to your favorites in the "Shortcut Master lite app". You can search for "LTE" and click on search button
LTEBandSelection
LTETestMain
LTE System Selection
CDMAPreference
5. Now click on "LTEBandSelection" and enable all the bands
6. Save and reboot
7. You now need to enable your data and turn off your wifi. Make sure your phone is in Global mode (in settings >> Mobile networks >> System select)
8. After your phone is rebooted open "Shortcut Master lite" app.
9. Now tap on LTETestMain
10. Select Click on CDMA preference.
Now choose Band preference and select "any"
P_REV_Preference ---> "MOB_P_REV 3
This is important.. EVDO Revision --> Rev A
11. "LTE Connect w/o IMS PDN" must be checked
12. Now go back to your main menu in shortcut master lit app
13. This step is very important. Changing the timeout is important. Tap on LTE System Selection
Except "Scan duration" add a couple zeros to all the other timers. For eg: T_mpsr timer (Min) is 200
The fallback timer will reset itself after reboot. But don't worry the configuration is already updated with the new value. For some reasons the shortcut master lite app is not picking it up.
14. Now finally click on "CDMA preference" in the main menu and make sure it has the value you set in Step 10
At step 10 or 13 your network should go away and your phone should complain about "no network". That's fine. just ignore the message.
Now finally reboot your phone. That's it. You should now have 4G LTE and it won't fallback to 3G or H+
The only problem is when I'm on a call my 4G LTE is dropped to 3G/H+. But after I hang up it goes back to 4G LTE after 12 seconds. I don't know if it's an expected behavior. But I'm trying to see if there is a fix for that.
I tested this with Tmobile. Make sure your APN settings are correct.

Not working for me on Cricket (AT&T). Still will always go back to H+, 4G LTE only works when I select CDMA.

konradsa said:
Not working for me on Cricket (AT&T). Still will always go back to H+, 4G LTE only works when I select CDMA.
Click to expand...
Click to collapse
I tried it on my two phones (Both tmobile). My friend just tried it on his phone. It worked for him too.

motorhead_biker said:
I tried it on my two phones (Both tmobile). My friend just tried it on his phone. It worked for him too.
Click to expand...
Click to collapse
That's great! I hope we can figure out also what we need to do to get it to work for AT&T, I am sure it's probably just some small tweaks required.

konradsa said:
That's great! I hope we can figure out also what we need to do to get it to work for AT&T, I am sure it's probably just some small tweaks required.
Click to expand...
Click to collapse
I will try it with my roomies att sim tonight. He has a nano sim, I need to find a sim adapter.

Awesome, thank you! worked for me T-mobile.
it initially didn't work but I had to turn data off then on.
It also cycles me to 2g speed for a few seconds sometimes but that may be due to poor signal in building.

pwtzz said:
Awesome, thank you! worked for me T-mobile.
it initially didn't work but I had to turn data off then on.
It also cycles me to 2g speed for a few seconds sometimes but that may be due to poor signal in building.
Click to expand...
Click to collapse
Yeah It's due to the poor signal. I got that too. You can check your signal strength using LTE discover app.
But overall it's working fine for Tmobile. I'm gonna try and fix ATT tonight.

Is 13B the main thing in the solution? I've changed these settings before on 11A and wasn't fixed. I tried these numbers on 11A and still don't work.
Also, unless a phone supports VOLTE, it'll fall back to 3G/H for calls.

eigen said:
Is 13B the main thing in the solution? I've changed these settings before on 11A and wasn't fixed. I tried these numbers on 11A and still don't work.
Also, unless a phone supports VOLTE, it'll fall back to 3G/H for calls.
Click to expand...
Click to collapse
I tried in 11A and it didn't work for me. So I guess it needs 13B.

So I tried various combinations last night for AT&T/Cricket, but I was not able to get it to work. No matter what I tried, when I had 4G LTE, voice wouldn't work and whenever voice worked, I was back to H+.
If others are reporting that T-Mobile works reliably on 4G and nobody can figure out how to make this work for AT&T, I guess it's time to switch to T-Mobile.

konradsa said:
So I tried various combinations last night for AT&T/Cricket, but I was not able to get it to work. No matter what I tried, when I had 4G LTE, voice wouldn't work and whenever voice worked, I was back to H+.
If others are reporting that T-Mobile works reliably on 4G and nobody can figure out how to make this work for AT&T, I guess it's time to switch to T-Mobile.
Click to expand...
Click to collapse
No. Hold on. I have a solution for ATT too. I tried something last night. Actually while I was working on a solution for ATT I found that we don't even have to go through the steps I mentioned in my OP to solve the problem. It boils down to invoking a service and killing a native VZW service.
The ATT solution I have works but in low signal area 4G fades and it doesn't fallback to 3G or H+. I had to recycle data to get 3G or H+.

It's Working!!!!!!!!! Thank you!!!!!!!
You just made my life much better now!
I finally have a phone which is great and also finally have good reception!
I Love U!

motorhead_biker said:
No. Hold on. I have a solution for ATT too. I tried something last night. Actually while I was working on a solution for ATT I found that we don't even have to go through the steps I mentioned in my OP to solve the problem. It boils down to invoking a service and killing a native VZW service.
The ATT solution I have works but in low signal area 4G fades and it doesn't fallback to 3G or H+. I had to recycle data to get 3G or H+.
Click to expand...
Click to collapse
Yes, that same thing happens when you switch to CDMA mode with AT&T. Voice doesn't work then (obviously), but it also doesn't fall back to H+ automatically, when you lose 4G coverage you pretty much lose signal all together.

konradsa said:
Yes, that same thing happens when you switch to CDMA mode with AT&T. Voice doesn't work then (obviously), but it also doesn't fall back to H+ automatically, when you lose 4G coverage you pretty much lose signal all together.
Click to expand...
Click to collapse
Yeah I know. I also know why that is happening. Actually I think it's a bug in the baseband firmware. But we can fix that issue by just overriding the command that was sent by baseband firmware.

ron.r said:
It's Working!!!!!!!!! Thank you!!!!!!!
You just made my life much better now!
I finally have a phone which is great and also finally have good reception!
I Love U!
Click to expand...
Click to collapse
Lol.. rep me in SD :laugh:

konradsa said:
Yes, that same thing happens when you switch to CDMA mode with AT&T. Voice doesn't work then (obviously), but it also doesn't fall back to H+ automatically, when you lose 4G coverage you pretty much lose signal all together.
Click to expand...
Click to collapse
Do you have a working fix for AT&T/Cricket? Is it different than the T-Mobile?

motorhead_biker said:
Lol.. rep me in SD :laugh:
Click to expand...
Click to collapse
Ha! You are repped!
What root did you use? and steps?
easyroot?
did you split the file and merge it back?

I must have really bad luck or something. It doesn't work for me. The Tbsr_cdma timer resets back to 2 at reboot.
Edit: Appears to be working. Nice job!

renoob said:
Ha! You are repped!
What root did you use? and steps?
easyroot?
did you split the file and merge it back?
Click to expand...
Click to collapse
Root? I just flashed the rooted sys image. That's it. instead of copying it in the FAT32 memory card just copy it to your phone's internal and you don't have to deal with split and merge stuff

If it drops out of 4G on a call then you're talking on 1X. So no video chat, no HD voice and no voice + data?

Update disabled WiFi calling in airplane mode

I'm on a rooted pixel 2 XL, on vzw... I just updated to the June security update (from April) and I noticed that it is next to Impossible now to get any calls to go connect as Wi-Fi calling (Even when I have terrible service)
I already have Wi-Fi preferred setting enabled but it's not helping.
I also noticed what I used to do when I was in the basement is put the phone in airplane mode and turn on Wi-Fi and I would get texts calls and be able to make calls under Wi-Fi calling. Now if I try to make a call it says it's not allowed in airplane mode.
Is there a way to get around this???
***EDITED TO ADD RESOLUTION***
A clean flash of the latest update (June at the time of writing) fixed this WiFi calling issue!

The airplane mode plus wifi trick still works fine for me on the June update, both for calls and SMS.
Wifi calling always seems to disable itself after a couple days or weeks and then I have to reenable it, but it's been that way forever.
Sent from my Pixel 2 XL using Tapatalk

fixxxer0 said:
I'm on a rooted pixel 2 XL, on vzw... I just updated to the June security update (from April) and I noticed that it is next to Impossible now to get any calls to go connect as Wi-Fi calling (Even when I have terrible service)
I already have Wi-Fi preferred setting enabled but it's not helping.
I also noticed what I used to do when I was in the basement is put the phone in airplane mode and turn on Wi-Fi and I would get texts calls and be able to make calls under Wi-Fi calling. Now if I try to make a call it says it's not allowed in airplane mode.
Is there a way to get around this???
Click to expand...
Click to collapse
I have an UNLOCKED Version and Wifi-Calling is set as the default way to place a call from the factory, and when not in Wifi, it doesnt use wifi calling, but then uses LTE... I am able to turn OFF Wifi-Calling, altogether, by going In settings -->Network & Internet--->Mobile Network-->Bottom of page shows Wifi Calling settings.

AndroidDevices said:
I have an UNLOCKED Version and Wifi-Calling is set as the default way to place a call from the factory, and when not in Wifi, it doesnt use wifi calling, but then uses LTE... I am able to turn OFF Wifi-Calling, altogether, by going In settings -->Network & Internet--->Mobile Network-->Bottom of page shows Wifi Calling settings.
Click to expand...
Click to collapse
just to clarify, i do have an unlocked phone (also rooted), but im on VZW network (not a verizon model phone).
All of my settings are correct, it shows wifi calling as being enabled, it shows volte, advanced calling, ect all turned on...
but it NEVER uses WiFi to make a phone call anymore ( previously would show wifi icon in the dialer screen). i also used to be able to force it to use wifi calling by turning on airplane mode and enabling wifi, but now that is blocked very clearly by a dialog warning.

stevexyz0 said:
The airplane mode plus wifi trick still works fine for me on the June update, both for calls and SMS.
Wifi calling always seems to disable itself after a couple days or weeks and then I have to reenable it, but it's been that way forever.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
are you on verizon?
is your phone a verizon model phone, or unlocked from google?

fixxxer0 said:
are you on verizon?
is your phone a verizon model phone, or unlocked from google?
Click to expand...
Click to collapse
Yes, I'm on Verizon. It's a Google phone, not from Verizon. It's stock, not rooted.

stevexyz0 said:
Yes, I'm on Verizon. It's a Google phone, not from Verizon. It's stock, not rooted.
Click to expand...
Click to collapse
hrm... maybe ill just factory reset.
are you rooted by any chance?

fixxxer0 said:
hrm... maybe ill just factory reset.
are you rooted by any chance?
Click to expand...
Click to collapse
Not rooted.
Sent from my Pixel 2 XL using Tapatalk

Have you tried the script to make wifi calling preferred?

jrbxx7 said:
Have you tried the script to make wifi calling preferred?
Click to expand...
Click to collapse
I did this manually in adb, my menu option shows wifi preferred. (Still greyed out though)

AndroidDevices said:
I have an UNLOCKED Version and Wifi-Calling is set as the default way to place a call from the factory, and when not in Wifi, it doesnt use wifi calling, but then uses LTE... I am able to turn OFF Wifi-Calling, altogether, by going In settings -->Network & Internet--->Mobile Network-->Bottom of page shows Wifi Calling settings.
Click to expand...
Click to collapse
I have an unlocked rooted version. I have wifi calling set as preferred. In phone info, all of the toggles are on. However, I cannot make a call in wifi; I turn on airplane mode with wifi on and I get an error message "turn off airplane mode or connect to a wireless network to make a call." I also used the script to set wifi preferred. Have you been able to make a wifi call?

jlokos said:
I have an unlocked rooted version. I have wifi calling set as preferred. In phone info, all of the toggles are on. However, I cannot make a call in wifi; I turn on airplane mode with wifi on and I get an error message "turn off airplane mode or connect to a wireless network to make a call." I also used the script to set wifi preferred. Have you been able to make a wifi call?
Click to expand...
Click to collapse
Once you turn on airplane mode the wifi turns off too. You need to turn on wifi after you go airplane mode. It should work.

bobby janow said:
Once you turn on airplane mode the wifi turns off too. You need to turn on wifi after you go airplane mode. It should work.
Click to expand...
Click to collapse
I did turn wifi on after turning on airplane mode; It shows it is on and I still get the error message when I try to make a call.

jlokos said:
I have an unlocked rooted version. I have wifi calling set as preferred. In phone info, all of the toggles are on. However, I cannot make a call in wifi; I turn on airplane mode with wifi on and I get an error message "turn off airplane mode or connect to a wireless network to make a call." I also used the script to set wifi preferred. Have you been able to make a wifi call?
Click to expand...
Click to collapse
Same exact issue I have.
Did you dirty flash the security updates? Not sure if its Magisk 16.4 beta causing a problem? I doubt it because I was running that before the update. Maybe that was it...
I'm going to try toggling the ADB command back to mobile preferred and see if that helps. --> DIDNT WORK.

bobby janow said:
Once you turn on airplane mode the wifi turns off too. You need to turn on wifi after you go airplane mode. It should work.
Click to expand...
Click to collapse
Thats the reason I started this thread... that USED to work for me.
Now, no more. I get the error message about turning on the cell radio.

fixxxer0 said:
Same exact issue I have.
Click to expand...
Click to collapse
That is why I asked the other user if he is actually got it to work.
---------- Post added at 02:05 PM ---------- Previous post was at 01:20 PM ----------
fixxxer0 said:
Same exact issue I have.
Did you dirty flash the security updates? Not sure if its Magisk 16.4 beta causing a problem? I doubt it because I was running that before the update. Maybe that was it...
I'm going to try toggling the ADB command back to mobile preferred and see if that helps. --> DIDNT WORK.
Click to expand...
Click to collapse
I dirty flashed the June factory image using deuces script and I am using Magisk 16.4 beta. It maybe time to clean wipe; that usually solves any problems with this phone.

Shot in the dark here... I was having the same issue and even called Google (Project Fi) about the issue. I accidentally discovered on my own that I had to dial the area code when on Wifi or it would give me the error "Turn off airplane mode to make a call". This was when dialing only 7 digits. When I dial with the area code the call goes through over wifi with no problem. Maybe try dialing with the area code or with 1+area code+number.

jrbxx7 said:
Have you tried the script to make wifi calling preferred?
Click to expand...
Click to collapse
ckarrow2 said:
Shot in the dark here... I was having the same issue and even called Google (Project Fi) about the issue. I accidentally discovered on my own that I had to dial the area code when on Wifi or it would give me the error "Turn off airplane mode to make a call". This was when dialing only 7 digits. When I dial with the area code the call goes through over wifi with no problem. Maybe try dialing with the area code or with 1+area code+number.
Click to expand...
Click to collapse
Just tried this, didn't work. All my contacts are saved with the +1 and area code already, but just in case I tried a random number. Still got the turn radio on error.

fixxxer0 said:
Just tried this, didn't work. All my contacts are saved with the +1 and area code already, but just in case I tried a random number. Still got the turn radio on error.
Click to expand...
Click to collapse
Since it obviously works flawlessly on stock June update don't you think it's time to try that in order to eliminate hardware as the problem? Otherwise you're just spinning your wheels and asking to figure out a unique scenario.
Sent from my Pixel 2 using XDA-Developers Legacy app

bobby janow said:
Since it obviously works flawlessly on stock June update don't you think it's time to try that in order to eliminate hardware as the problem? Otherwise you're just spinning your wheels and asking to figure out a unique scenario.
Sent from my Pixel 2 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Yep... just don't have time for backing up and restoring everything for a full wipe at the moment.

Bad signal and no data connection during calls.

So I've run into an issue that has come about after I've tried to flash custom roms and failed. Basically when I go back to stock roms my signal is very low and while I'm in calls i completely lose data connection or more specifically it switches to 3g. I'm not sure exactly how to fix this. I tried flashing the latest radio image from pie and currently I just took the time of flashing the factory images for pie to both slots but I seem to still have the problem. Any ideas why I'm having this issue? I ran into it before but fixed it somehow but I don't know what I did.

KageBeast said:
So I've run into an issue that has come about after I've tried to flash custom roms and failed. Basically when I go back to stock roms my signal is very low and while I'm in calls i completely lose data connection or more specifically it switches to 3g. I'm not sure exactly how to fix this. I tried flashing the latest radio image from pie and currently I just took the time of flashing the factory images for pie to both slots but I seem to still have the problem. Any ideas why I'm having this issue? I ran into it before but fixed it somehow but I don't know what I did.
Click to expand...
Click to collapse
You have to enable Voice over LTE in settings (network/internet)
Otherwise the phone switches to 3G or even 2G during calls

BabelHuber said:
You have to enable Voice over LTE in settings (network/internet)
Otherwise the phone switches to 3G or even 2G during calls
Click to expand...
Click to collapse
I don't have the option for whatever reason. I did see it before in oreo but not amymore in pie.

KageBeast said:
I don't have the option for whatever reason. I did see it before in oreo but not amymore in pie.
Click to expand...
Click to collapse
It's there ?

BabelHuber said:
It's there
Click to expand...
Click to collapse
I was able to fix the issue. I guess I just needed to switch which network I was on but still all those options aren't there for me. Don't know why.

KageBeast said:
I was able to fix the issue. I guess I just needed to switch which network I was on but still all those options aren't there for me. Don't know why.
Click to expand...
Click to collapse
Mobile network settings can vary depending on the network you're connected to. My Sprint looks different from both of yours.
Sent from my Pixel 2 XL using Tapatalk

Mobile data issue after pie update

Hey,
after updating to android pie I have problems with mobile data. In my area I usually have 4G or 3G but I now only have 2G a lot of times. I even compared the coverage with a friend who has the same provider as me but an iPhone, and she had 4G while I only had 2G. It also seems like I can't receive or send any WhatsApp messages unless I am connected to the WiFi.
Does anyone else have these kinds of problems, especially those living in Europe (I live in Germany)? Is there maybe a problem with LTE band 20? (my phone is not rooted, so I am unable to check)
I have the global version btw, and everything worked fine under oreo

dieterbohlen187 said:
Hey,
after updating to android pie I have problems with mobile data. In my area I usually have 4G or 3G but I now only have 2G a lot of times. I even compared the coverage with a friend who has the same provider as me but an iPhone, and she had 4G while I only had 2G. It also seems like I can't receive or send any WhatsApp messages unless I am connected to the WiFi.
Does anyone else have these kinds of problems, especially those living in Europe (I live in Germany)? Is there maybe a problem with LTE band 20? (my phone is not rooted, so I am unable to check)
I have the global version btw, and everything worked fine under oreo
Click to expand...
Click to collapse
I am also facing this issue, my internet keeps turning on and off even when i have full network, running on pie

Jadz.31 said:
I am also facing this issue, my internet keeps turning on and off even when i have full network, running on pie
Click to expand...
Click to collapse
You can try to reset the APN settings on your phone, that did the job for me!

dieterbohlen187 said:
You can try to reset the APN settings on your phone, that did the job for me!
Click to expand...
Click to collapse
Ok i did, time will speak, thanks for the suggestion

dieterbohlen187 said:
You can try to reset the APN settings on your phone, that did the job for me!
Click to expand...
Click to collapse
Where do I find them please?

Amphibius2 said:
Where do I find them please?
Click to expand...
Click to collapse
Settings=>Network&Internet=>Mobile Network=>Advanced=>Access Point Names=>Reset to default