Question Stuck on 4G - Xiaomi Poco F3 / Xiaomi Mi 11X / Redmi K40

I'm using Poco F3 on T-Mobile here in the valley in southern California. I manually enabled VoLTE and Wi-Fi calling. I have my SIM card in slot 1. I'm on MIUI Global 13.0.2 Stable. Everything is working great, but when I drive to certain low signal areas, the phone switches to 4G and will not switch back to showing VoLTE 5G in the status bar even when I'm back to a great signal area. I have to use airplane mode, or toggle VoLTE setting off and back on to get it to switch back to 5G with VoLTE working again. Any idea if there's a way to permanently fix this issue? I don't know why it switches to 4G and never switches back!

Related

WCDMA only loses data

I'm using Darthstalker Note 3 V6 and Advanced Signal Status to switch between LTE or WCDMA. The problem I'm having is that sometimes when streaming data through Spotify or watching YouTube, WCDMA mode loses data connectivity. It usually happens after a prolonged period of use, but WCDMA just will just stop working not connect to 4G data anymore. I can still make phone calls and send texts, but internet and apps that rely on data just don't work. Signal strength shows normal, but the 4G is just dead, the indicator is not there either. However, if I'm in an LTE area I can switch to LTE and everything will be fine. Its like WCDMA just stops working for a few hours.
LTE coverage in my area isn't nearly as good as WCDMA and I prefer reliabiliy more than speed. Any help would be very much appreciated.
Switching airplane mode on/off - doesn't work
Turning the radio itself off through Advanced Signal Status - doesn't work
Reboot - doesn't work
Battery pull - doesn't work

What controls the switching between 4g and 3g?

I use a Sprint Note4 rooted On OBAR ROM. While at work, my service switches from 4g to 3g very often. The only way i can get it to switch back after it goes to 3g is to either turn off data or turn on airplane mode and off again. It is very annoying. I also use the gtools program and lock it on LTE. It works until i guess i lose they lte signal. Then i lose all connection. So i change the setting ball to lte/Gsm/cdma.
Any and all suggestions are very well appreciated.
Blessings
This is very common in areas where Sprint is upgrading their towers. It might be some time before it gets resolved. Besides toggling airplane mode or updating PRL/profile, one fix is to turn off LTE Bands 41 and 26 leaving only Band 25 on until it gets resolved.
Not sure how to do that on Note 4 (Google will be your friend here), but it works for me on a previous phone
Thank you! I will try that. I was changing the priorities. I use gtools.
Blessings! !!

a50 network problem

i have a network problem like so many others. While using the phone on strong signal area it is fine but on low signal area the phone becomes horrible. No signal everytime and internet. But using the same sim on same place with oher phone is flawless. and the 2sim network only stay in 2G mode and couldnt switch from 2G to H or 4G. and stay only in 2G-E network. until restarting the phone to back everything to normal. how i can solve this???

Question A52S 4G, 4G+ & LTE icons

Hello all. I just purchased an A52S about one week ago and have service with T-Mobile. I'm located in Long Island, NY. The phone is obviously marketed as a 5G phone. I receive all T-Mo bands EXCEPT for 4 and 71. When I check which band my phone is connected to (at home) it spends its time evenly split among bands 2, 12, 41 and 66. Initially I thought my phone was only displaying the 4G icon no matter which band I was connected to. However I was mistaken in thinking a + icon was a DL/UL transfer arrow. So when connected to 41 my phone is showing the 4G+ icon. At no time have I seen an LTE or 5G icon. I ran a speedtest while 4G+ was showing and received 208Mbps/6.21Mbps. I'm pretty happy with the DL, however quite curious why I'm only generating a 6.21 UL. This leads to a few questions....
re: On my Home Screen
Ques 1) I guess I'm ok not seeing a LTE icon since 4G+ is basically the equivalent of LTE-Advanced, or 4.5G. Is everyone else seeing a 4G+ or LTE icon?
re: During a call
Ques 2) My option for VoWifi and VoLTE are both turned ON. However during a call my phone does not show an icon for either service. (I only see the 4G icon during a call.) If I'm not on a call and look at my lock screen it shows that I'm on T-Mobile WiFi Calling. However during the call I see no confirmation that the phone is utuilizing VoWiFi or VoLTE. Does this matter? Should I see something? (I obviously only look for the VoLTE icon when Wifi is turned off.) If I navigate to SETTINGS --> ABOUT PHONE --> STATUS INFORMATION --> SIM CARD STATUS the phone shows that Mobile Voice Network Type = LTE. This seems correct and should confirm that the phone is utilizing VoLTE if the feature is turned on, which it is. However once again this is the only place within the entire phone that I see the letters LTE.
re: Internet
Ques 3) My upload speeds (mobile data) are horrendous. I regularly receive 1-2Mbps as a speedtest UL result. Why is this?
Other than these questions the phone performs perfect. Calls, texts, MMS, internet, all run perfect. I'm curious as to why the phone is only displaying certain icons. Any input would be greatly appreciated. Thank you in advance.
Flyin18T said:
Hello all. I just purchased an A52S about one week ago and have service with T-Mobile. I'm located in Long Island, NY. The phone is obviously marketed as a 5G phone. I receive all T-Mo bands EXCEPT for 4 and 71. When I check which band my phone is connected to (at home) it spends its time evenly split among bands 2, 12, 41 and 66. Initially I thought my phone was only displaying the 4G icon no matter which band I was connected to. However I was mistaken in thinking a + icon was a DL/UL transfer arrow. So when connected to 41 my phone is showing the 4G+ icon. At no time have I seen an LTE or 5G icon. I ran a speedtest while 4G+ was showing and received 208Mbps/6.21Mbps. I'm pretty happy with the DL, however quite curious why I'm only generating a 6.21 UL. This leads to a few questions....
re: On my Home Screen
Ques 1) I guess I'm ok not seeing a LTE icon since 4G+ is basically the equivalent of LTE-Advanced, or 4.5G. Is everyone else seeing a 4G+ or LTE icon?
re: During a call
Ques 2) My option for VoWifi and VoLTE are both turned ON. However during a call my phone does not show an icon for either service. (I only see the 4G icon during a call.) If I'm not on a call and look at my lock screen it shows that I'm on T-Mobile WiFi Calling. However during the call I see no confirmation that the phone is utuilizing VoWiFi or VoLTE. Does this matter? Should I see something? (I obviously only look for the VoLTE icon when Wifi is turned off.) If I navigate to SETTINGS --> ABOUT PHONE --> STATUS INFORMATION --> SIM CARD STATUS the phone shows that Mobile Voice Network Type = LTE. This seems correct and should confirm that the phone is utilizing VoLTE if the feature is turned on, which it is. However once again this is the only place within the entire phone that I see the letters LTE.
re: Internet
Ques 3) My upload speeds (mobile data) are horrendous. I regularly receive 1-2Mbps as a speedtest UL result. Why is this?
Other than these questions the phone performs perfect. Calls, texts, MMS, internet, all run perfect. I'm curious as to why the phone is only displaying certain icons. Any input would be greatly appreciated. Thank you in advance.
Click to expand...
Click to collapse
Hey there.
Maybe the model you have doesn't support major bands in the US. As far as I know, the A52 5G (US Model) does support all bands, unlike the A52s you own right now (feels like an imported model)
dexlemaffo said:
Hey there.
Maybe the model you have doesn't support major bands in the US. As far as I know, the A52 5G (US Model) does support all bands, unlike the A52s you own right now (feels like an imported model)
Click to expand...
Click to collapse
UPDATE: I've discovered the issue is simply the icon istelf, not the service. I have confirmed I receive all bands except for 4 and 71. I'm usually in band 41, which in my case displays a 4G+ icon. For anyone else using any other phone you would see the 5G-UC icon. When I plug my phone into the car for Android Auto, my car screen displays the LTE icon which reflects the 4G signal. I haven't paid attention to what AA displays when connected and my phone is showing 4G+. My VoLTE feature is provisioned and the option is turned on. Once again I believe it's working fine because in the ABOUT screen in my SETTINGS it shows my phone is using LTE for voice. In addition I see the 4G icon active during a voice call. I also see a Wifi icon in my call screen if I'm using VoWifi. I was also able to run a speedt test in an area with a strong band 41 signal, and my phone's upload was fine. Hence, I believe my terrible UL speeds at home is due to bad reception. All in all the phone works great. I bought a 512GB microsd, and assigned every app to utilize it when possible. Such a great feature. It's a very under-the-radar phone. Works great and has amazing features. The ONLY little bother to me is the horizontal scrolling of the app drawer. I'm so used to vertical that I kept swiping the wrong way and it was driving me nuts. I installed NOVA and all is good now.
Flyin18T said:
The ONLY little bother to me is the horizontal scrolling of the app drawer. I'm so used to vertical that I kept swiping the wrong way and it was driving me nuts. I installed NOVA and all is good now.
Click to expand...
Click to collapse
If it helps, if you install Good Lock and the Home Up module you can have the app drawer vertical scroll option.
Warning though - it's terrible. I wish I could stick with Nova but the gesture navigation jankiness drove me crazy (all good though if you use nav buttons).

Question no internet connection when switching from 3G to 4G

hello everyone, im having an issue on my poco f3 it happens on both miui official, eu v13 & 14
like title says, whenever switching from 3g to 4g there is no internet connection and i have to turn airplane mode on and off for it to work again...
you can trigger this issue by going to settings and manually changing to 3g and then back to 4g, but it can also happen automatically if the signal is low...
does anyone else experience this issue? is there any fix for this?
Shala1122 said:
hello everyone, im having an issue on my poco f3 it happens on both miui official, eu v13 & 14
like title says, whenever switching from 3g to 4g there is no internet connection and i have to turn airplane mode on and off for it to work again...
you can trigger this issue by going to settings and manually changing to 3g and then back to 4g, but it can also happen automatically if the signal is low...
does anyone else experience this issue? is there any fix for this?
Click to expand...
Click to collapse
3 possible reasons:
1) When youre using 3g, your phone is connected to the best signal 3g tower nearby, switching to 4g makes your phone use the same tower (could be a low signal 4g). When you turn airplane mode on and off, the phone connects to the best signal 4g tower nearby.
2) Faulty SIM card
3) Phone faulty hardware
3zozHashim said:
3 possible reasons:
1) When youre using 3g, your phone is connected to the best signal 3g tower nearby, switching to 4g makes your phone use the same tower (could be a low signal 4g). When you turn airplane mode on and off, the phone connects to the best signal 4g tower nearby.
2) Faulty SIM card
3) Phone faulty hardware
Click to expand...
Click to collapse
Thank you for your comment.
I dont think the SIM is faulty simply because when i insert it to my redmi note 9s, this issue does not exist.
does your poco dont behave like this?
country carrier always helps , what bands ? phone version global? that helps , https://www.kimovil.com/en/frequency-checker/US/xiaomi-poco-f3
jefffrom said:
country carrier always helps , what bands ? phone version global? that helps , https://www.kimovil.com/en/frequency-checker/US/xiaomi-poco-f3
Click to expand...
Click to collapse
Israel, pelephone carrier. phone global version from official poco store on aliexpress
happend on stable eea miui 13 & 14 also on global 14 and xiaomi eu 13 & 14

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