Question F3 Constant "unstable network connection" Popup - Xiaomi Poco F3 / Xiaomi Mi 11X / Redmi K40

Global ROM
Current version 12.5.1.0
Situation: I am getting "Unstable network connection" error every few minutes. This is despite me having a GOOD connection, whether at home or outside. I have already tried many things and none of them worked, such as:
Uninstalling Google Drive (Saw this as a possible solution).
Resetting APN, setting up APN.
Airplane mode.
Restarting phone.
Re-sitting my sim card.
Also, mobile network diagnostics on MIUI itself shows a slow connection (less than 1kbps), while Speedtest shows speeds way above that number. I have searched through many forums and is unable to find any solutions for this. I have gotten this phone for less than a month, and at the start, it didn't have this issue.

AbsoluteGX said:
Global ROM
Current version 12.5.1.0
Situation: I am getting "Unstable network connection" error every few minutes. This is despite me having a GOOD connection, whether at home or outside. I have already tried many things and none of them worked, such as:
Uninstalling Google Drive (Saw this as a possible solution).
Resetting APN, setting up APN.
Airplane mode.
Restarting phone.
Re-sitting my sim card.
Also, mobile network diagnostics on MIUI itself shows a slow connection (less than 1kbps), while Speedtest shows speeds way above that number. I have searched through many forums and is unable to find any solutions for this. I have gotten this phone for less than a month, and at the start, it didn't have this issue.
Click to expand...
Click to collapse
The toast notification suggests to me it's a third party app causing it, maybe check which apps are giving this notification. As for the MIUI speed test, that value is the current network speed that your phone is using.

Backup your stuff and factory reset.

Update: Tried with another sim card for about 5 minutes, still getting the same slow speed in the mobile network diagnostics, no toast notification about that unstable network connection.
Jing Arjay87 said:
The toast notification suggests to me it's a third party app causing it, maybe check which apps are giving this notification. As for the MIUI speed test, that value is the current network speed that your phone is using.
Click to expand...
Click to collapse
I tried downloading Toast and Toast Source, added them into accessibility options but it keeps showing as malfunctioning in the accessibility options area, any ideas why?

Are u sure it is not an ISP problem? If u do not wanna do a factory reset, u can try to reinstall the ROM from update settings section (3 dots-download update). Maybe helps.

AbsoluteGX said:
Update: Tried with another sim card for about 5 minutes, still getting the same slow speed in the mobile network diagnostics, no toast notification about that unstable network connection.
I tried downloading Toast and Toast Source, added them into accessibility options but it keeps showing as malfunctioning in the accessibility options area, any ideas why?
Click to expand...
Click to collapse
Try this: Open the toast source app and enable it within the app, disable the service and force quit the app. Then go back into the app and reenable service and see if it works. I had a screen filter app that also malfunctioned, I managed to fix it by doing these steps.
And as for the slow speed in the diag page, that is your current network throughput so if you are doing nothing network intensive the number will obviously be low. Try running a speedtest and see if the value changes.

Update: Tried with another sim card for about 5 minutes, still getting the same slow speed in the mobile network diagnostics, no toast notification about that unstable network connection. Will do
Jing Arjay87 said:
The toast notification suggests to me it's a third party app causing it, maybe check which apps are giving this notification. As for the MIUI speed test, that value is the current network speed that your phone is using.
Click to expand...
Click to collapse
I tried downloading Toast and Toast Source, added them into accessibility options but it keeps showing as malfunctioning in the accessibility options area
pl1992aw said:
Backup your stuff and factory reset.
Click to expand...
Click to collapse
I will try factory reset as a last resort

Update: I used Toast Source, restarted my phone. And it works now. The culprit app is KakaoTalk, which was on Battery Saver mode. Putting it out here so people might find this a Batter Saver feature as a possible solution.

Related

Lost 3g and data connection

I did something inadvertently and lost my 3g and data connections. As far as I can see, the settings are all right "Mobile network" is clicked under Wireless and Networks, the Mobile Icon is green -- but suddenly I lost 3g.
Could someone give me a checklist of things to do?
Desparately...
Joe
Have you maybe deleted your APN's?
menu>settings>wireless and networks>mobile networks>access point names. Also while in thre check network mode is set to gsm/wcdma auto.
the access point I have is Orange Internet -- with juicedefender-orangeinternet underneath. Should there be another one?
Joe
Turn aeroplane mode on and off, if that doesn't work turn off and remove battery. Sounds like you've got an issue that many had and that I use to have.Do a search for the work around, try data connection issues. It was a pain for many data would occasionally just stop working. The new update apparently fixes it.
I would also try things with juicedefender turned off to see if it is causing any problems.
Have you also checked your network mode isn't set to use 2g only?
tried airplane off and on -- no luck. Ditto with battery out and juice defender disabled.
How do I check if Network mode is set to 2G? And how do I get the new upgrade?
(Many thanks for your help, by the way.)
Joe
I've had exactly the same issue.
First thing I did was delete the APN for the faster TMob speeds and reverted to default. This immediately made it work for a few moments before all data connection was lost.
So I then after trying the various things (ie airplane mode - can't remember what else - maybe switching off juice defender?), I did a factory reset. This solved things - until I reinstalled JD, and then the problem rearose. I ahve since binned JD, and I don't have any issue - just a rapidly decreasing battery level...
I just did a hard reset to switch to gmail!
Is there some way to uninstall juice defender?
Also, I just noticed that when I turn my Desire on, I no longer get the choice to choose HTC Sense -- what could have caused that?
Joe
If you performed a hard reset, then this should have deleted Juice Defender and all your pre-installed apps.
To delete it manually, go to Menu > Settings > Applications > Manage Applications and select Juice Defender from the list and choose the Uninstall option.
To check if you network is set to 2G, go to Menu > Settings > Wireless & Networks > Network Mode. If it shows GSM only selected, then it is set as 2G, set it to the GSM/WCDMA instead.
For Sense, go to Settings > Applications > Sense UI then clear defaults and force stop, then hit the home button and choose Home when given the option. You can then set it as default and turn it off or on.
Ta for that. 3g is still on, I've uninstalled Juice Defender and still no joy. (It had gone when I did the reset, but I installed it again. Didn't have any problem with it at first.) Strangely, I can't find Sense UI amongst the applications. Could the hard reset have deleted it?
Anyway, its beginning to look like another hard reset tonight, when I have access to wifi....
Joe
Apologies... it would show up as HTC Sense, not Sense UI
You can also try the HomeSwitcher app, to easily switch between launchers: http://www.androlib.com/android.application.ymst-android-homeswitcher-qEw.aspx
Hello,
i have the exact same trouble.... Lost of all data connexion! Wifi is working properly, but in 3G sometime i lose connexion and i m unable to connect back!
Only way to do it is to turn off the phone and turn it back in, and most of the time it works.
The thing i get since 2 days (since the update in fact) is that before i go to bed i surf a bit, its working, then i plug the phone and go to sleep... then on the morning, no more data connexion!
This is REALLY annoying, and i can't figure out why it is behaving like that.... i have APNdroid installed, but when i lost the connexion even if i try to enable/disable it, nothing to do....
Please help!!
Orange?
Any of you guys on Orange by any chance?
My work mate and I both have a desire and lose 3G when at work. We can call our handsets and they both go straight to vm. They also fail sms.
We can only reliably use the handsets on GSM.
When I go home I switch back to GSM/WCDMA auto and all is OK, except my buddy doesn't live far from work so is on the same cell.
We think it's an issue with an Orange 3G mast that serves our area.
Same thing happens with my N97 and I thought it was handset related.
Data Connection Problem
Hey People,
I have a similar problem with my Galaxy S2 too, on Resurrection remix 4.0.3. I have tried everything well almost everything I know about. I have also installed automatic net services from Orange romania. It didn't help too. I believe there are people who can help fix this problem and releases my pain.
Any helpwould be appreciated.
I had the same problem once. It was the EPST settings.
1. Who is your carrier?
2. What rom do you have? In order to edit the EPST settings you need to
a. Know what your doing
b. Have the ORIGINAL sense rom installed.
You will probably need to call your carrier and tell them your data is not working and you believe it to be the EPST settings. To get into these settings, (in the ORIGINAL sense rom) dail ##778#, click edit mode, then type in password (usually 000000), but it depends on ur carrier.
From there it depends on what your carrier needs the settings to be.
I messed with the APNs settings on my phone for weeks and nothing worked. Then i stumbled upon EPST settings and that fixed it. I had to contact someone in upper data communications in Bluegrass Cellular to get the correct settings. So good luck!
---------- Post added at 04:40 PM ---------- Previous post was at 04:38 PM ----------
beaverHausen said:
Any of you guys on Orange by any chance?
My work mate and I both have a desire and lose 3G when at work. We can call our handsets and they both go straight to vm. They also fail sms.
We can only reliably use the handsets on GSM.
When I go home I switch back to GSM/WCDMA auto and all is OK, except my buddy doesn't live far from work so is on the same cell.
We think it's an issue with an Orange 3G mast that serves our area.
Same thing happens with my N97 and I thought it was handset related.
Click to expand...
Click to collapse
Not all towers support 3G or even internet. That could explain that but idk about the calling and sms.

[Q] Force G2 to connect to 3g/EDGE/HSDPA?

I sometimes have an issue where my phone loses data connectivity in places where I know that I have service. I can get it to refresh and reconnect to the data signal by going into and out of airplane mode, but that's kind of a pain. I've tried opening my browser and repeatedly refreshing google, but that doesn't seem to work as regularly as my airplane mode method.
Is there any way to force the g2 to search for a data signal once it has lost it? Does this ever happen to anyone else?
running CM 6.1.1
If forcing 2G/3G what you are looking for... here download the application shown below =]
http://www.androlib.com/android.application.myc-phone-phoneinfo-pnDn.aspx
once installed just go into phone info I believe? not so sure it's been a while.. then scroll down to either network "GSM ONLY" for 2G or "WCDMA only" for 3G sorry I'm a bit sleepy as I just woke but you can also follow this guide below!
http://www.androidcentral.com/how-force-nexus-one-3g-mode
infinitron said:
I sometimes have an issue where my phone loses data connectivity in places where I know that I have service. I can get it to refresh and reconnect to the data signal by going into and out of airplane mode, but that's kind of a pain. I've tried opening my browser and repeatedly refreshing google, but that doesn't seem to work as regularly as my airplane mode method.
Is there any way to force the g2 to search for a data signal once it has lost it? Does this ever happen to anyone else?
running CM 6.1.1
Click to expand...
Click to collapse
*#*#4636#*#* - select "Phone Information", scroll down and you can toggle your connection type -
Perfect! I think this is exactly the type of thing I'm looking for. I'll try it out the next time I lose my connection.

[Q] [SOLVED] Intermittent Mobile Connectivity

This is a repost of a post made in the wrong forum: http://forum.xda-developers.com/showthread.php?p=41965120#post41965120
---
Hi all
A search of the forums revealed 5 potential threads similar to this but not quite (not same symptom, phone, modem ...)
Keep loosing mobile data connection...
I have installed X-note 3 and found that my mobile internet is intermittent particularly in Youtube where I frequently have to click "No connection , Retry" or "Connection to Server lost, Retry" and in Play Store and Gmail where the problem tends to occur on a screen unlock after it has been unused for a few minutes - about 3 to 5 mins.
I dont believe this is a ROM issue because I d/l various ROMS such as Revolution, Alliance, PacMan, Paranoid and still I get the problem.
I tried installing all 9 of these radios here: http://forum.xda-developers.com/show....php?t=2044937 to no avail.
Also notice that if I set Network Mode to "GSM only" then this makes no difference to the problem (the default is "GSM/WCDMA Auto" which is what I've set it back to)
WiFi works fine.
Any ideas?
same issue here.
a lot of time trying to know why this happen. and i think it is due to fast dormancy.
the phone usually stays in standby in 3g... when you request some data it will automatically turn h or h+. Here is when you will notice the internet moving.
But unfortunately if you have some.coverage issues you can have this problem and then the programs instantly report no conection. If you insist you will see you can obtain connection. 5 seconds later 3g will appear again
It does not mind you will see the bars of coverage at maximum... if there is no quality signal you will have this problem.
I just have this problem at work. Not in other places.
But if you want a constant connection I recommend to keep for example online music while navigating...this will avoid the issue...unfortunately you will increase your data plan..
Yes!! This is exactly what happens.
So it can't be my specific phone but perhaps a hardware design or software issue. I don't recall this I happening before I rooted
Weird
Fixed it - so far at least
Fast Dormancy is the problem. It was enabled by default and I have turned this off. The connection is now fine and seems to be "always on". For me this is okay because I do not have any data limits or pay per MB for data. I do notice that new connections take a little longer to start (for example, time taken to access internet when opening up an app that is not currently running) . This is not noticeable for apps already running (in the background)
This explains ....
http://forum.xda-developers.com/showthread.php?t=1952005

4G network slow - cannot browse or use apps

Hi,
I have been encountering slow app loading when using 4G connection. Even if I have strong signal (4G or sometimes 4G+), I cannot load an app like when searching google app, it keeps on loading. When I try to connect to wifi or turn on/off the airplane mode and connect back to mobile data, I am able to load or browse any apps.
not sure if it just my network provider or is there anything I can do with the phone like clear something or activate some settings.
Please help!
I am having a similar issue in that after about 3-4 days of usage, the network slows to a crawl. I have run up a network monitoring app and does not show any major levels of network activity. This has only just started to happen since the Android 10 update. A reboot will fix it and the network will be back to normal again.
At a guess, seems very similar to the network stack having a buffer overrun or something and usually associated with a bad driver. Got a feeling this is the same here.
bchliu said:
I am having a similar issue in that after about 3-4 days of usage, the network slows to a crawl. I have run up a network monitoring app and does not show any major levels of network activity. This has only just started to happen since the Android 10 update. A reboot will fix it and the network will be back to normal again.
At a guess, seems very similar to the network stack having a buffer overrun or something and usually associated with a bad driver. Got a feeling this is the same here.
Click to expand...
Click to collapse
still happening on my Note10+ after android 10 update. I feel like there is some apps hogging the mobile data network since restarting or turning airplane mode on/off will refresh the mobile data. Try also using the device care to optimize your phone. it helps sometimes instead of restarting.

How did you stop Carrier Hub ?

How did you guys stop Carrier Hub from disconnecting your internet 16 times a day and resetting your IP address?
I've seen the notification less often since I uninstalled the Carrier Hub from the play store.
Unfortunately, disconnects still can be frequent. I'm still trying to figure it out. At first, I thought it was a bad SIM card, since mobile data was also sometimes bouncy. My current theory is that high CPU (and possibly memory) utilization is causing the problem.
dkoppenh said:
I've seen the notification less often since I uninstalled the Carrier Hub from the play store.
Unfortunately, disconnects still can be frequent. I'm still trying to figure it out. At first, I thought it was a bad SIM card, since mobile data was also sometimes bouncy. My current theory is that high CPU (and possibly memory) utilization is causing the problem.
Click to expand...
Click to collapse
Update:
I finally have a better answer than bad WiFi or CPU usage spikes.
The problem for me had to do with 5G and my cellular connection switched towers.
By disabling the 5G NR SA Band, drops are much less frequent; rare I would say.
What I did:
Pull up the hidden menu by entering
#*462633*#100#
in the dialer.
field test -> modem settings -> band selection
Select 5G NR SA Band and tap DisableSA near the bottom of the list.
The toast message that appears may say "reset successful", but navigate back (do not hit Save), and see that band is now disabled.

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