Questions tagged [4g]

4G is the fourth generation of cellular wireless standards, therefore the successor of the 2G and 3G families of standards. The candidates for 4G are LTE (Long Term Evolution) and WirelessMAN-Advanced.

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Phone won't automatically reconnect to the mobile internet

My phone (Xiaomi Redmi Note 10, Android 11) spontaneously disconnects from the mobile internet after being connected for a couple of hours, and it won't automatically reconnect. Can stay unconnected ...
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Why are these different Android maximum upload and download speeds?

The following screenshot is from Realme 8 which has a max UL/DL of 15000/30000. The next screenshot is from Asus Zenfone Max Pro (M2) which has a max UL/DL of 51200/102400. The problem I am facing ...
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Not Connecting with private LTE network

I have android camera vehicle mounted device. When install operator public network LTE sim, device is successfully connected to network but when install company private LTE network sim device is not ...
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Has the choice of "network mode" an effect on battery when mobile data is switched off?

I have read that 2G uses less battery than 4G LTE, especially if I don't need much data. Some sources : https://www.uswitch.com/mobiles/guides/how-can-i-make-my-phone-battery-last-longer/ Does 4G ...
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4G symbol appears but no/slow internet

I have a Samsung Galaxy S21 5G which has worked great, but the last day or so I have been having a very annoying issue where the internet just goes really, really slow, yet it is still showing the 4G ...
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Is 3G network always available when 4G network is? [closed]

I'm going to buy an Android phone which has unfortunately blocked 4G calls by the operator. Only 3G calling will be possible. I think it's enough for voice, but: Since I travel a lot, is the 3G ...
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Use high speed internet on hotspot [duplicate]

Today I discovered that my cellphone provider, with the excuse of "saving my high speed quota" throttles the speed of my internet connection whenever I use hotspot. For work reasons, I need ...
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Data connection works without a data plan

I am trying to control my screen time by disabling internet access. I have filtered my mac address so the wifi does not work. So I turned off WiFi and a 4G LTE symbol is shown in the notification bar. ...
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How to activate band aggregation all thee time when available (4G+ at all times)?

The 4g+ network only activates when network is under big load. I'd like to have 4g+ activated as soon as it is available and as long as it is available. Does anybody know where I can change the ...
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How to know the address of the dns server I m using?

Simple question but I couldn t find the answer anywhere. It is not part of ip informations and the information is not trivial when being connected to the Internet over lte. getprop | grep dns is ...
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611 views

Android phone as 4G proxy server

I am trying to turn my old phone (Xiaomi mi5) into a 4G proxy server which I can use with different apps. for scraping data etc. I have been searching how to setup and i found some articles but they ...
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Connecting to a private IP over WiFi and public IP over LTE simultaneously

I'm designing an Ubuntu app for Android which is running through a Termux chroot jail. The app requires the phone to be connected to a drone through the drone's generated Wifi network. This network ...
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2 votes
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No service on Blackview BV 5500 Pro with Lineage 17.1

The issue I installed Lineage OS on my blackview BV 5500 Pro and am facing the "No Service" issue since. There does not seem to be any hardware issue and I've exhausted all the options I ...
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Rog Phone wont connect to internet with data but wifi, calls, and texts work fine

my phone is not able to use the internet on data, but wifi works fine. I can still send and recieve texts, and phone calls work too but it's just the data. My sim works fine because I've tested it on ...
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364 views

Only use 2G for calls?

My current phone unfortunately does not support VoLTE, so I'm limited to 2G for calls. However, for all other uses (internet, messaging), even the worst LTE reception is still infinitely better than ...
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Is there any way to check if 4G/LTE is broken in LineageOS (FP2)?

Situation I have a Fairphone 2. I recently installed Lineage OS 17.1 I have a UK phone provider. I am in Germany for the next few weeks. I am not able to connect to German networks with 4G (that ...
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Does LTE Band 20 (800) really matter?

I'm looking to import Redmi K30 Ultra, and since it is not available globally (only Chinese ROM), in the specs it is stated it does not support LTE B20(800). My operator provides following coverage: ...
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Will a CDMA carrier's LTE work on a GSM-only phone?

More specifically, I'd like to know if a Sprint-based carrier (Tello) will work on a Xiaomi Redmi Note 8 (M1908C3JG).
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2 votes
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Data on 4G only with 3g access without data

My provider has special 4G only bundles at more GB/$ but has no VoLTE support, I was looking for a solution to block mobile data when and after i get a call or for other reasons when I drop to 3G/H+. ...
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Phone not connecting in 4G

I have, since almost one year, a Xiaomi Redmi Note 6 Pro smartphone and never connected on 4G, in the tray bar there is always H or H+ (in the previous phone I had it was almost always on 4G). My ISP ...
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1 vote
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Finding which lte bands my Samsung galaxy tab supports without rooting?

Everything is in the title It’s not about the bands currently in use but those my device can supports (my cell phone provider is refusing to let me access full of their supportted bands)… As I don t ...
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3 votes
2 answers
8k views

Two 4G sim enabled simultaneously (Jio & Airtel) - Samsung Galaxy On Max

I have Samsung Galaxy On Max and inserted two different carrier SIM cards that are Jio4g and Airtel. It has been written that this device is dual sim 4g. It was working fine till I was using Jio4g as ...
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1 answer
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Disable VoLTE, while still using LTE - To force Jio4gVoice to work

I have a Nexus 5X running an unofficial Pie build (https://forum.xda-developers.com/nexus-5x/development/rom-android-source-project-t3827122) VoLTE does not work (no incoming or outgoing calls), but ...
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0 votes
2 answers
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Airtel 4g network not working on certain apps

So I am using Vivo V7 on an airtel 4g data connection and every time I try to open apps like swiggy or foodpanda I get a message saying "there was a problem" "please try again later. However when I ...
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is it possible to get location via a cellular network if the device doesnt have a data plan?

is it possible to get location via a cellular network if the device doesnt have a data plan? or does it need a data plan to be able to get location via a cellular network? is a data plan needed to ...
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1 vote
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Is phone call quality different depending on the connectivity standard?

I've been trying to figure out how to achieve the best audio quality in phone calls, and part of it is finding out whether GSM, CDMA, LTE or other standards/technologies compress the audio the same ...
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Why does VoLTE deployment only take a "Carrier Update" on iOS for all iPhones to have it enabled, but only a select few Android handsets get it?

I am guessing carriers need to adjust the software, but why isn't this negotiated by Android by default so that no modifications would be necessary? Why is there no equivalent of "carrier updates"?
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3 votes
1 answer
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Why do phones need an OTA update to support VoLTE for certain carriers but they work out of the box for other VoLTE carriers? [closed]

This is regarding unlocked phones sold from stores. A major carrier in my country depoloyed a VoLTE network and it worked even on custom ROMs with very minor problems. Now 2 other carriers are ...
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1 vote
1 answer
563 views

No LTE on samsung s4 mini?

I am using a Samsung S4 Mini Model GT-l9195 with Lineage OS 14.1. I used the LTE Image to install LOS. But actually, I am not sure if my phone is able to use LTE. Because there was also a non-LTE ...
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How to do a reset my LTE profile? (or fix some type of hardware LTE failure)

My phone, Samsung G920FD aka Galaxy S6 Duo works with band 3 LTE yet lately (two days ago), it sudden stops to work on this band, it simply doesn't connect to it while my other phones connect to band ...
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2 votes
1 answer
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LTE: Lost/Stolen Phone in another country, didn't receive text/data/voicemails after new SIM?

I had an unfortunate situation occur to me where my phone was pick pocketed out of my pocket while on Vacation out of the country. We decided to not cancel the phone line because doing so would ...
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XIAOMI Mi A1 LTE bands - User manual or website is right?

Situation: Live in Spain, moving to Argentina. Buy a new Xiaomi MI A1, on the website it lists support to LTE B4 (main band in Argentina). Get the phone, open the box which says GLOBAL Version, but ...
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1 vote
0 answers
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Is there a way to list all 4G networks within range?

Does anyone know of a method to obtain a list of all 4G networks within range at the current location? Currently running Android 7.1 on an HTC U11 if relevant.
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What are the radio band present in the hidden phone menu?

Not locked to it or anything (plenty of efs backups) just wondering what differences there are between say, the US band and the Cellular 800 band.
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1 vote
1 answer
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Translation of RIL_PreferredNetworkType terminology to human speak?

In Android's source code, I see typedef enum { PREF_NET_TYPE_GSM_WCDMA = 0, /* GSM/WCDMA (WCDMA preferred) */ PREF_NET_TYPE_GSM_ONLY = 1, /* GSM only */ ...
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0 votes
1 answer
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4G network compatibility in France

I read somewhere (here) that in France, in order for the 4G to work ideally with all carriers, one should have a smartphone with the 4G network spec: "FDD-LTE : Bands : 1/3/7/20/28". I am considering ...
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Get SIM card connection info

If I want to know if I am connected 2G, 3G or 4G, how do I check that on Android? I don't seem to have any default SIM-related app on my phone, nor does the SIM setting screen give much information ...
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4G signal with mobile turned off

Recently I have noticed that my cellular company (TIM, I'm in Brazil) has been charging me for network connections daily. I rarely use cellular network since at home and in my job has wifi and I don't ...
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1 vote
0 answers
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Receiving a call downgrades to 3G/H permanently?

Some background I'm using my Nexus 5X running Android 7.1.2 as a wifi access point for my computers. I'm subscribed to an unlimited 4G plan, no upper limits. I got the phone last Fall, which is also ...
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2 votes
2 answers
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"You have lost data connectivity because you left your home network with data roaming turned off" notification appears

My phone is a Huawei Ascend Mate7. I get the following notification whenever I turn on my 4G connection: Data lost You have lost data connectivity because you left your home network with data roaming ...
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3 answers
4k views

Disable mobile data permanently

A strange request I know... but I am quite keen to disable mobile data from my phone permanently (as opposed to just switching it off in the settings) so that I can only browse the internet when I'm ...
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1 vote
0 answers
62 views

Micromax E483 calls are not establishing until mobile is restarted

Recently I bought Micromax E483, it was working very nice but recently i am unable to make any call. Even after rebooting the mobile, calls are going only once or twice.
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3 votes
0 answers
276 views

Can a phone support lte band 41 but not support band 38?

The only difference in Google Pixel's versions for North America and for the rest of the world is their support for different lte bands and carrier aggregation. E.g., in tech specs (https://madeby....
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2 votes
3 answers
5k views

Cellular Network Setting Won't allow to select preferred network type to LTE

Android is not letting me select preferred network type to LTE for my 4G SIM, because I have selected the other SIM for data. The thing is, it only lets you select LTE as preferred network for a SIM ...
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3 votes
2 answers
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Bypass T-Mobile Hotspot Tethering Limit by using the phone's unlimited plan?

I have the 10gb hotspot plan for tmobile but I also have unlimited data when I'm on my phone. Is there a way to bypass the hotspot limit by using the unlimited data from my phone instead? I have the ...
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-1 votes
1 answer
794 views

How to root Huawei Y3II L02 4G

How do I root my Huawei Y3II and when would a method be available for my device
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1 answer
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how to make swipe elite plus volte phone

I have swipe elite plus and and want to make it volte but problem is there is no update from swipe and there is no custom rom available for swipe elite plus. please help
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2 votes
0 answers
2k views

Acceptable Signal Strength Ranges for 2G/3G and 4G

I have been logging signal strengths on my phone and am trying to understand what ranges can be considered "Good" and "Bad". RSSI is a measure of signal strength for GSM (2G/3G): -50dBm to -113dBm ...
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0 votes
3 answers
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Internet always on when VoLTE enabled in Redmi 3s Prime

I m using Redmi 3s prime with jio 4G. Whenever VoLTE is enabled, my device internet is always active, regardless of whether mobile data is on or off. I can browse the Internet and watch online video ...
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2 votes
3 answers
10k views

"Unfortunately, the process com.android.phone has stopped" error

"Unfortunately, the process com.android.phone has stopped" error occurs when i try to change my network mode to LTE only. The phone i'm using is Samsung J5(SM-J500H).
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