Mobile data issue after pie update - Xiaomi Mi A2 Lite Questions & Answers

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
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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
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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!
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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!
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Where do I find them please?

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

Related

[Q] data lost while on call

when i am on a call i cant not see to get data...the data connection turns off by itself and when the call ends data connection will come back on? is it suppose to be like that or is there something wrong with the phone. right now im on software 1.28.708.10. thanks
marktang said:
when i am on a call i cant not see to get data...the data connection turns off by itself and when the call ends data connection will come back on? is it suppose to be like that or is there something wrong with the phone. right now im on software 1.28.708.10. thanks
Click to expand...
Click to collapse
Happens to me too I believe my frined.
It only happens with mobile data though.
If you are on Wifi, the wifi should NOT disconnect right?
ya if it is on wifi then it is ok. not data connection though
I believe that the phone switches to 2g during calls, and not sure whether this is a telco setting that they do not allow calls through 3g, or a software feature of the phone with the reasoning that 2g signals are generally stronger in most parts of the world compared to 3g.
Just fyi i had the same issue on my "old" Desire HD.
ArmedandDangerous said:
I believe that the phone switches to 2g during calls, and not sure whether this is a telco setting that they do not allow calls through 3g, or a software feature of the phone with the reasoning that 2g signals are generally stronger in most parts of the world compared to 3g.
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It might be carrier specific. I have no trouble getting (and keeping) HSPA data when I'm in a call.
which version do u have Barry? I am using the international version on rogers. Are you using the at&t version?
BarryH_GEG said:
It might be carrier specific. I have no trouble getting (and keeping) HSPA data when I'm in a call.
Click to expand...
Click to collapse
Then I believe it to be carrier specific then since the software governing these kinda things should be standard across the board
marktang said:
which version do u have Barry? I am using the international version on rogers. Are you using the at&t version?
Click to expand...
Click to collapse
A UK international version on AT&T.
Ok that is so strange. I have the Hong kong version on rogers network. It never happened to me before and I have used a lot of HTC and unlocked phones before.
Sent from my HTC One X using XDA
ok so i dont think its the carrier cuz i reset the phone and it works sometimes now. if i make a call and browse right away then it will work but if i leave it for too long then it wont work.
marktang said:
ok so i dont think its the carrier cuz i reset the phone and it works sometimes now. if i make a call and browse right away then it will work but if i leave it for too long then it wont work.
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Click to collapse
guys its because the phone calls you make are on a 2g bandwidth unless its a video call, that's why if you have 2g connection or EDGE active it will get disabled as soon as you make a call.
to clarify, force your network settings to wcdma and then connect to 3g, after that make a call and your 3g will not be disconnected
gunswordx said:
guys its because the phone calls you make are on a 2g bandwidth unless its a video call, that's why if you have 2g connection or EDGE active it will get disabled as soon as you make a call.
to clarify, force your network settings to wcdma and then connect to 3g, after that make a call and your 3g will not be disconnected
Click to expand...
Click to collapse
i tried this and the 3g was displayed in notification bar.. but when i use this as hotspot, i hardly get connected to internet in my laptop (connected to phone) even the 3g was displayed.. this is really bring me down.. as i need to use hotspot while on travel and had conversation at the same time..
is there any other way to solve this?
thanks
Yup got it to work. Thanks.
Sent from my HTC One X using xda premium
marktang said:
Yup got it to work. Thanks.
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Hi Marktang... I saw your post from Google as I lost data connection during phone call with my Galaxy S2.
May I know is it after configure the Network Mode inside the setting to use WCDMA only, then the problem will be solved?
Thank you...

Radio problems.

So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman
manor7777 said:
So, i'm in the UK with my nice shiny OP3 (on Three UK) - I am rooted with twrp, but same applies on stock.
The radio in this phone seems to prefer H+/3G to 4G, even though where i live, i have full bars on both. My nexus 5 always prefered 4G, and the OP3 is set to prefer 4G but 90% of the time drops to 3G/H+
Another interesting thing, if i use the testing menu to force LTE only, even if it's on 4G already, completely stops any signal getting through for a number of minutes until it decides to connect sometime later. I have full LTE signal in my room too.
Is this a radio problem that could be solved in the future with a software update? not seen anyone else with this issue!
FYI, when it is on 4G, it's super fast and stays connected until a reboot, where the whole process starts again
Norman
Click to expand...
Click to collapse
Check your APN.
papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN Is exactly the same as my nexus 5, and i even added a new one. Same deal.
I'm an IT Professional, just not a developer. i've done everything i can think of. 4G does work, but only when it wants to. My phone is also registered with my carrier correctly.
Bump on this anyone?
I am having a similar problem I guess. I have the dual sims installed and one sim randomly shows no range. Further, the network preference is not the way it is supposed to be - Chose it as 4G and if 4G is not detected it falls back to 2G.
Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3
dkotoric said:
Same issue forcing lte fixes lte for me but then no calls come through
Sent from my OnePlus 3
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Click to collapse
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
Sent from my unknown using XDA-Developers mobile app
cdkg said:
Same as you. Anyone know how to fix the network priority to lock onto LTE first and then drop to 3G for calls?
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Click to collapse
I did notice when I do have LTE it's fine but it won't re lock onto LTE after a call on Three where it has to drop to H
I'm having a problem where the phone catches 4G+ "carrier aggregation" and it'll jump from to 4g+ to 4g and back to 4g+ really fast like almost flashing . And speed test are showing low numbers. T-Mobile USA.
Sent from my ONEPLUS A3000 using XDA-Developers mobile app
Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
Sent from my Pixel C using XDA-Developers mobile app
I first put my sim into slot 1 when I first got the device, I was having the exact same issue. I found that the data priority sim, or if you only have one sim needs to be in sim slot 2.
mrnovanova said:
Same here. Sometimes it just locked to 3g/h+ in a strong LTE area for no reason. I'm on stock oos with one sim and 1 apn. Sometimes I need to reboot the phone to get LTE back.
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Yes exactly. And even then it doesn't show up straight away despite 3/4 and usually full signal. Sometimes just putting it into standby mode and leaving it 20mins can sort it... Until I get another call lol. Wondering if it's just a software or firmware issue that could be patched. Lte is fine it's just never preferred despite the options being set
papi92 said:
Check your APN.
Click to expand...
Click to collapse
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.
Striatum_bdr said:
APN is not the universal response. Here he faces a problem of inaccurate network type choice, APN is only to have acces to internet through the provider's proxies. It's a radio problem clearly, the baseband is probably to be corrected by OnePlus.
It's really a strange thing to see those network type issues, MMS issues are still present after all those years.
Click to expand...
Click to collapse
This is what I thought. It's probably an easy fix for oneplus or rom developers. Custom radios are nothing new. Let's hope so anyway!
This is happening to me as well. I'm on three in a strong 4G area but it always prefers 3G it's so annoying hope it gets fixed soon.
Sent from my ONEPLUS A3003 using Tapatalk
same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.
DrSun said:
same problem here.
i tested op3 with 3 different carriers
on two of them - lte no problem, instant connect...
on third sim - slow connection, frequent out of range. almost no lte.
tested third sim on iphone - instant lte connect, no problem.
seems like a incompatibility with an selected cellular operators.
Click to expand...
Click to collapse
Could be but I'm doubting it. OP3 Has full support at least for my carrier on both bands they use (3 & 20).. Never know, the devs here will figure it out if oneplus don't
So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
---------- Post added at 03:00 PM ---------- Previous post was at 02:58 PM ----------
erdock said:
So i am in Germany right now using Vodafone with LTE enabled and enough datavolume but i am surfing with 2g speed. What is this? Checked the apn and everything is fine. On my S5 i am flying through the net ...
Click to expand...
Click to collapse
Even loading google is a struggle
Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.
RetroFlux said:
Same issue here, have never got it to say 'LTE' for me since I got the phone, best it does is 4G whilst my Galaxy S5 would happily pickup LTE. Just wondering what UK users have there preferred network type set to? Mine is on GSM/WCDMA/LTE I assume that is right as that is what it went to itself and have tried LTE or LTE/WCDMA too.
Click to expand...
Click to collapse
Sorry, i mean my OP3 shows LTE in statusbar but it runs with 2G speed

NO VoLTE During Call post Nougant update.

Just wondering if by chance if anyone is still getting that issue where you drop to 3g while on call post Nougant update??????
Working fine for me
Masterx9 said:
Just wondering if by chance if anyone is still getting that issue where you drop to 3g while on call post Nougant update??????
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Click to collapse
What network you are using?? & on which ROM
qasimtb said:
What network you are using?? & on which ROM
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Click to collapse
T mobile and pretty much I've tried every nougant ROM all the way up to the recent 7.1.1 beta. If I roll back to marshmallow everything is fine which led me to believe that something got tweaked in the nougant update that killed VoLte
Masterx9 said:
T mobile and pretty much I've tried every nougant ROM all the way up to the recent 7.1.1 beta. If I roll back to marshmallow everything is fine which led me to believe that something got tweaked in the nougant update that killed VoLte
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Click to collapse
Here everything works fine for me. As I am an Indian so using JIO network which supports VoLTE and I can make and recieve the calls using the network.
Have you tried to enable enhanced 4G LTE mode in the SIM settings.
qasimtb said:
Here everything works fine for me. As I am an Indian so using JIO network which supports VoLTE and I can make and recieve the calls using the network.
Have you tried to enable enhanced 4G LTE mode in the SIM settings.
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Click to collapse
Yep and i even went as far as to go into the secret menu and tell it to grab only lte, which it does but as soon as a call is initiated from reason its drops the 4g connection and sticks to 3g/hsdpa. Then takes its sweet time to reconnect to lte after said call if it does it at all.
Masterx9 said:
Yep and i even went as far as to go into the secret menu and tell it to grab only lte, which it does but as soon as a call is initiated from reason its drops the 4g connection and sticks to 3g/hsdpa. Then takes its sweet time to reconnect to lte after said call if it does it at all.
Click to expand...
Click to collapse
Maybe a firmware issue cause even after you are selecting LTE only then also it is switching to HSDPA. Weird.... You can try to flash the firmware file again & check if the issue is resolved. You can find the firmware from Jamal's thread.
qasimtb said:
Maybe a firmware issue cause even after you are selecting LTE only then also it is switching to HSDPA. Weird.... You can try to flash the firmware file again & check if the issue is resolved. You can find the firmware from Jamal's thread.
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Click to collapse
Tried that too, I ever redid the apn's. At this point i just left it on 6.0, in all honesty i may trade this phone eventually anyway starting to miss having a lot of storage space. Especially with the job and all.
Masterx9 said:
Tried that too, I ever redid the apn's. At this point i just left it on 6.0, in all honesty i may trade this phone eventually anyway starting to miss having a lot of storage space. Especially with the job and all.
Click to expand...
Click to collapse
If you want to use 6.0 then go for Sultan's CM. It's best of all. Very much stable with latest updates.
qasimtb said:
If you want to use 6.0 then go for Sultan's CM. It's best of all. Very much stable with latest updates.
Click to expand...
Click to collapse
yep thats what ive been running.
Masterx9 said:
yep thats what ive been running.
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Click to collapse
Perfect ROM....
Masterx9 said:
Yep and i even went as far as to go into the secret menu and tell it to grab only lte, which it does but as soon as a call is initiated from reason its drops the 4g connection and sticks to 3g/hsdpa. Then takes its sweet time to reconnect to lte after said call if it does it at all.
Click to expand...
Click to collapse
I'm sure in there you seen that the voLTE provisioning is toggled on. I have only been able to get voLTE to work on official oxygenOS post Nougat and not any modded ROMs based on OOS such as experience or freedomOS. Toggling the voLTE in the status bar settings can tell you if it is working because the icon will show up there when it is. Turning that on and off seems to make it turn on at least for me after flashing the open betas which are the only OOS Nougat that I have tried.
GovernorHawk said:
I'm sure in there you seen that the voLTE provisioning is toggled on. I have only been able to get voLTE to work on official oxygenOS post Nougat and not any modded ROMs based on OOS such as experience or freedomOS. Toggling the voLTE in the status bar settings can tell you if it is working because the icon will show up there when it is. Turning that on and off seems to make it turn on at least for me after flashing the open betas which are the only OOS Nougat that I have tried.
Click to expand...
Click to collapse
Could you provide a screenshot​ of how it looks. So could you still retain root on the official image ?

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
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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

slow mobile data connection

After I updated to 5.1.5 mobile data has been either really slow or not working at all. It's not my ISP as my whole family use the same and don't face the this problem. Does anyone know a fix to this?
Update: If found the problem. All apps where set to data usage disabled automatically after the update.
You mean 5.1.5? Anyway I'm on the OpenBeta17 and I have the same problem in 4G (Vodafone, Italy).
I am having the same issue on mine running Oxygen 5.1.5. My wife's iPhone X and my Daughter's iPhone 6S are fine on data speed all side by side. On AT&T
captainpuppet said:
You mean 5.1.5? Anyway I'm on the OpenBeta17 and I have the same problem in 4G (Vodafone, Italy).
Click to expand...
Click to collapse
Yes I do ?
Using a VPN service my speeds are great.. I really suspect it's fault of my mobile carrier.. Maybe they have filters on the line...
captainpuppet said:
Using a VPN service my speeds are great.. I really suspect it's fault of my mobile carrier.. Maybe they have filters on the line...
Click to expand...
Click to collapse
It's so slow that I can't even connect to a VPN without an error
manojpawarsj12 said:
Try resetting apn or create a new apn according to your carrier
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Click to collapse
I've tried that multiple times.

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