Develop Bugs

[Q] Going to Canada, want to use wireless by not cellphone

I've got a stock S3 with T-mobile service and planning a trip to Canada. I don't want any roaming or connection charges while in Canada, I'll just do without the cellphone, but I still want to be able to use the S3 to connect to wireless at the hotel for Skyping, email, etc. What kind of settings will I have to change on my phone, if any, to ensure I don't get hit with any roaming or data charges while using my phone?
Thanks.

denzelnuke said:
I've got a stock S3 with T-mobile service and planning a trip to Canada. I don't want any roaming or connection charges while in Canada, I'll just do without the cellphone, but I still want to be able to use the S3 to connect to wireless at the hotel for Skyping, email, etc. What kind of settings will I have to change on my phone, if any, to ensure I don't get hit with any roaming or data charges while using my phone?
Thanks.
Click to expand...
Click to collapse
I think you can find and uncheck "data roaming" and "use packet data" in settings>>More settings>>Mobile Networks
Alternatively, you could turn on airplane mode and then just manually turn on wifi. All other radios should stay off.

Thanks. With the "support.bell.ca" method - I just don't know how cell phone connectivity would work; would I still be connected to the cell phone towers and receive phone calls (which I don't want) under roaming?
I like the second solution. I knew Airplane mode would turn everything off, but I didn't realize I could then turn wireless back on. I thought it was a all or nothing setting. Learned something useful.

denzelnuke said:
Thanks. With the "support.bell.ca" method - I just don't know how cell phone connectivity would work; would I still be connected to the cell phone towers and receive phone calls (which I don't want) under roaming?
I like the second solution. I knew Airplane mode would turn everything off, but I didn't realize I could then turn wireless back on. I thought it was a all or nothing setting. Learned something useful.
Click to expand...
Click to collapse
I edited my post thinking that same thing. I believe disabling "use packet data" does disable your connection to the network and therefore, no calls. I think using airplane mode is the more certain option though.

I agree. And I don't have a "use packet data" option under Mobile Networks, so it doesn't matter.

Just turn on airplane mode. Then manual wifi. The turn on wifi calling and check prefer that only instead of cell calls. Boom.
Sent while sleeping in chair.

See.
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Sent while sleeping in chair.

Interesting if that would work. But if you attempt to make a phone call, it says Airplane Mode is activated, turn off Airplane Mode to make a call.
Which brings up the question, can I use wifi calling while in Canada if I have wifi service?

WiFi connection while data is on

Apparently Pixel phones does not route connections correctly. I have an issue with a wifi device in my car. My car connects to phone through wifi for music and other services but since this wifi has no internet, my phone automatically keeps data on. When this happens, the car app does not detect the connection because apparently the Pixel phone routes all data through only the "Active connection" which is cellular in this case, if i turn off data, then the app works. This is a petty as its' working fine with other phones like Samsung or iPhone.
Also the car actually needs the data connection on my phone for navigation, update, etc... and with this scenario, it does not work.
I made a test at home with a router. I connected the phone to router which has no internet connection, i then opened chrome and put the gateway address and it did not open the router page. I then disabled data and it was able to open the router page. Again, this is only with the pixel; other phones work even if i don't disable data.
I have seen similar issues with also other WiFi devices. See below link
https://forum.dji.com/thread-103340-1-1.html#post_858055
Any thoughts or nothing can be done with this pixel phone.

Under settings- network and internet- wi-fi- wifi preferences- advanced there is a setting called switch to mobile automatically. Turn this off, it turns mobile data on when there is no wifi but you are connected to WiFi. Give it a try and report back.
Sent from my Pixel XL using Tapatalk

Where? I don't see that. Check below screenshot.
https://ibb.co/6BwH9p9
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I have an OG Pixel running newest Build, non rooted and this is my screen.
Sent from my Pixel XL using Tapatalk

thats very strange. i have also latest build. just updated today with February security update?

Yep, I have the February update just got it yesterday. this options been on there for quite some time for me I don't know if it's a Verizon thing but I remembered seeing it for some time.
Sent from my Pixel XL using Tapatalk

so looks like i am stuck with the wrong phone as there is no solution

One more option not sure it will be work but worth a try. In developer options (if you don't know how to enable it Google it) under networking there is a toggle for mobile data is always active. Mine is toggled on, see if yours is and change that option to see if it makes any difference. If it's off turning it on may bring in the other option in the settings menu, if it's already on, turning it off may do the same thing as the other option in the settings menu does for me.
Sent from my Pixel XL using Tapatalk

tried it already first thing, no difference.

cannot turn off Mobile Data

Hello,
I would like to check if I am the only one with this behavior:
I am on stock android 10 version February update.
I tried to turn off the mobile data, turn of the WIFI but Is see that some applications such as whatsapp, still connected to internet and are able to sent messages.
Quora is able to open treads and Chrome still able to browse web sites.
I tried try to disable 4G calls but no changes.
It is a problem for me because if I travel with my smartphone consuming data in other countrys it will be very expensive and plane mode if not a good solution as I need sometimes to tun of data but turn on the WIFI
I am android user since several years and never seen similar behavior before.
Thanks to share your experiences tuning off mobile data with Pixel 3 XL.
Florian

guerito73 said:
Hello,
I would like to check if I am the only one with this behavior:
I am on stock android 10 version February update.
I tried to turn off the mobile data, turn of the WIFI but Is see that some applications such as whatsapp, still connected to internet and are able to sent messages.
Quora is able to open treads and Chrome still able to browse web sites.
I tried try to disable 4G calls but no changes.
It is a problem for me because if I travel with my smartphone consuming data in other countrys it will be very expensive and plane mode if not a good solution as I need sometimes to tun of data but turn on the WIFI
I am android user since several years and never seen similar behavior before.
Thanks to share your experiences tuning off mobile data with Pixel 3 XL.
Florian
Click to expand...
Click to collapse
Have you turned off roaming mobile data?? Should be any to go into settings and shut it all down

thatsupnow said:
Have you turned off roaming mobile data?? Should be any to go into settings and shut it all down
Click to expand...
Click to collapse
Of course that's the first thing I've check
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of course WIFI is turned off
and I still able to browse on the internet

With data off what does it say when you enter *#*#4696#*#* and enter Phone Information? Could you give a screen shot? Make sure to blank out your IMEI info before posting. Or just what does it say under the "Roaming" and "Data Service" lines. Should say "not roaming" and "disconnected"
Also, under preferred network type what is selected. I wonder if you are getting 2g or something coming through. When connected with data turned off does it have the same speed as your LTE/4G?

Moto G7 Power - No VoLTE or VoWiFi - Any help or suggestion

Hello experts,
I wanted to see if anyone else has any experience in this?
I raised this issue on LineageOS GitLab, but while they come back to me, is anyone else experiencing this?
Expected Behavior
T-Mobile Network
VoLTE: If I make or receive a call, while VoLTE is turned on, the Cellular connection should remain on LTE.
VoWiFi: In low or no Cellular signal conditions, while VoWiFi is turned on, the calls should travel over WiFi.
Note: All the settings are enabled in the phone. In settings, and confirmed under ##4636## (see screenshots).
Current Behavior
T-Mobile Network
VoLTE: Turned off WiFi for debugging. Made an outbound call. During the call, the connection changes form LTE to 3G. Call is not doing VoLTE. Also true for inbound call.
VoWiFi: Moved to a location with no Cellular Signal, but was unable to complete any calls over WiFi.
Note: See the screenshots, I have all the correct settings enabled, but still IMS doesn't register.
Possible Solution
All toggles work, so the actual service should also work.
Steps to Reproduce
NOTE: First I tested this on complete STOCK ROM, fully updated, on T-Mobile network. Both VoLTE (on by default) and VoWiFi work. Next after installing LineageOS, I tried on the phone:
Went to Settings > Network & Internet > Mobile network. Turned on both the options, rebooted the phone.
After reboot, went into ##4636##, but that still shows IMS not registered.
Turned the WiFi off for debugging. On any outbound or inbound phone call, the cellular connection changes from LTE to 3G. Went to a place with no Cell Signal, and cannot get any calls over WiFi.
/device ocean
/version lineage-17.1
/date 2020/09/26
/kernel 4.9.206-perf+
/baseband M632_26.100.01.120.01R
/mods None
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----
----
Any help would be appreciated.
Thanks.

Any updates on this? I'm thinking of buying one of these, but no VoLTE is a deal breaker.

Same device, same carrier, exactly the same problem on LOS 17.1 and after upgrade to 18.1.
There are reports on GiLab, but no news/updates on that...

Other device (oneplus 5), but exactly the same problem on LOS 19.1 with fresh install (3 months ago).
Very few search results on duckduckgo and google, most results show solution with steps that you wrote in discription. Seems like on ly few devices with this problem.

Question Poco F3 possible mobile data restriction

Poco F3 (Alioth)
Global
MIUI 13.0.6
MIUI-V13.0.6.0.SKHMIXM
Since a few days ago, my phone has been turning off the mobile data for both SIM Cards. At first i suspected my main SIM was damaged so i went to my mobile provider and got a new one. Still the same.
I have 2 SIM cards with different providers. SIM1 got LTE Advanced service recently and now it can reach 100Mbps. SIM2 has LTE service and usually tops at 6Mbps. The issue only happens when the SIM1 is Active as the Data SIM. When i switch my Mobile Data to SIM2, the problem does not happen. Even with a new SIM card for SIM1 provider, no solution.
The problem started at the same time the LTE Active feature was activated in my city. When there's no LTE+/4G+, only LTE/4G, the issue does not happen.
I think there's a bandwidth restriction on my F3, maybe on some app mobile data permission, but i can't find it. Should i do a Factory Reset?
Thanks in advance
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Security -> data usage -> settings -> Data plan -> When data plan is used up
select "show warning" instead of "warn and turn off mobile data"

Hello. Yes, i did just that but the issue continues. It's not a complete shut down of mobile data. It's more like a reset, because the data gets disabled on both SIMs for maybe 10 to 15 seconds and then turn itself on. During this 10 to 15 seconds, the Mobile Data widget is totally unusable even when pressed.
I've just check and it happens only when the 4G gets the +.

jmeneses0405 said:
Hello. Yes, i did just that but the issue continues. It's not a complete shut down of mobile data. It's more like a reset, because the data gets disabled on both SIMs for maybe 10 to 15 seconds and then turn itself on. During this 10 to 15 seconds, the Mobile Data widget is totally unusable even when pressed.
I've just check and it happens only when the 4G gets the +.
Click to expand...
Click to collapse
only thing i can imagine is
faulty sim
or
faulty phone hardware
or
bad kernel
or
bad rom
or
the simplest of them all... the reception, where you are at, is bad

Thanks for your reply. I got a new sim card yesterday at my office before posting here. And did several Speedtest and GNetrack test on site. I work in a Mobile Service Provider and in my office the signal is perfect because the eNodeB are everywhere.
After the sim change and the signal/bandwidth tests, i too suspected the rom, the kernel...or the hardware, so today i started with the simplest: data back up, then redownloaded the latest MIUI update, installed it and did a factory reset. So far, the issue only ocurred one time, barely after the factory reset. After updating all the apps and related (Google and Xiaomi), the phone is using the LTE Advanced connection without repeating the problem. I suspect it was a bad rom, or some app with a mobile data restriction that got reseted to work again. Still, i'm cautious and keeping the phone under observation.

jmeneses0405 said:
Thanks for your reply. I got a new sim card yesterday at my office before posting here. And did several Speedtest and GNetrack test on site. I work in a Mobile Service Provider and in my office the signal is perfect because the eNodeB are everywhere.
After the sim change and the signal/bandwidth tests, i too suspected the rom, the kernel...or the hardware, so today i started with the simplest: data back up, then redownloaded the latest MIUI update, installed it and did a factory reset. So far, the issue only ocurred one time, barely after the factory reset. After updating all the apps and related (Google and Xiaomi), the phone is using the LTE Advanced connection without repeating the problem. I suspect it was a bad rom, or some app with a mobile data restriction that got reseted to work again. Still, i'm cautious and keeping the phone under observation.
Click to expand...
Click to collapse
most clean way to make sure it isn't a rom issue would be to clean flash with fastboot rom