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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No audio on Facebook, YouTube Android app when on 4G

My Pixel 5 audio is working while on WiFi at home. When I'm not on WiFi and using 4G, any video on Facebook or YouTube has no audio. On Facebook I can turn the audio off and on for each video, doing ...
2 votes
2 answers
51k views

"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 ...
2 votes
0 answers
2k views

Android phone as 4G proxy server

I am trying to turn my old phone (Xiaomi Mi 5) into a 4G proxy server which I can use with different apps for scraping data, etc. I have been searching on how to set it up and I found some articles, ...
3 votes
1 answer
2k views

Hide VoLTE icon on Samsung

I used to be able to turn off VoLTE, but since a recent update, if I select 5G, VoLTE can't be disabled anymore (it is grayed out). I don't mind it being on, I just want to hide the icon. If I select ...
0 votes
0 answers
60 views

How to Load Webpages From Local Network While LTE Data is Connected?

My device is connected to a local WIFI AP that has a network, but not an internet connection. On this local WIFI network there is a webserver running at http://192.168.4.1:8000/ In the browser on my ...
0 votes
1 answer
4k views

How do I unlock 4G bands?

I'm using Xiaomi MI4. In India it doesnt support 4G bands, is there a way to unlock 4G bands for this device?
2 votes
2 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).
0 votes
3 answers
4k views

Disable mobile data permanently [duplicate]

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 ...
1 vote
1 answer
36 views

My mobile carrier is upgrading their network; must I replace my phone?

My mobile carrier is upgrading their network from 3G to LTE. I'm using a LG V20 phone, model LG-H915 to be precise. So far, I have been contacted twice by them, claiming that my phone and SIM card ...
1 vote
0 answers
61 views

Why is the loading of apps and websites sometimes freezing on my Android phone?

I'm using AdAway in VPN mode to block all ads on 3 phones and sometimes apps and sites won't load at all or load slowly. I'm using 4G+ and getting 50 mbps download speed. Phones are Realme Narzo 50 5G ...
3 votes
0 answers
56 views

CDMA signal disappear after changing network using an app

My phone is a replicate of the Huawei P8 called p8 lt Dual sim Android 6.01. After I used an app called Network Mode Universal to enable LTE on my phone, the signal disappear and I can't use my CDMA ...
0 votes
1 answer
81 views

SMS/call works when LTE is on but without it, it does not work. Why?

I recently removed my SIM and put it back in again. From then on my SIM does SMS and calls only when I turn on LTE in the mobile network section. Even if internet is off it works with LTE. Why did ...
2 votes
1 answer
208 views

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 ...
30 votes
2 answers
8k views

Can I use my device on a different carrier?

Sometimes it's desirable to use a device on a carrier that does not officially sell it. Often this is due to regional differences and travel (for example, using a US phone in Europe) but also because ...
0 votes
2 answers
2k views

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 ...
0 votes
1 answer
205 views

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 ...
0 votes
2 answers
3k views

Xperia Z3v Simultaneous LTE and Voice Service

I'm told by Verizon that the Z3v will be unable to access mobile data while in a call until January. If only they told you this before the sale! In any case, does anyone know of a workaround, or a way ...
0 votes
1 answer
115 views

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 ...
0 votes
0 answers
213 views

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 ...
0 votes
3 answers
1k views

Need to recover android system for soft bricked Onda v919 4G

I have an Onda v919 4G that I messed with and broke. I changed a line in the /system/etc/parameters file. I wanted the system to use my SD card (256 Gb) as the primary storage device for my apps and ...
0 votes
1 answer
1k views

How to enable 4G in Samsung Galaxy S4 (SPH-L720)?

I have a Samsung Galaxy S4 (SPH-L720). I want to use 4G. I'm using Zong which has 4G internet and I'm using 4G on my other mobile, but I want to use 4G on this mobile because it has better performance ...
1 vote
1 answer
58 views

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 ...
3 votes
2 answers
9k views

A phone as a home 4G modem/router?

I live in a rural area where traditional cable, fiber, and even DSL are not a possibility. I am using a weird wireless system a local ISP set up for this area, but its flaky, slow and expensive. The ...
1 vote
2 answers
42 views

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 ...
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 ...
1 vote
0 answers
23 views

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 ...
1 vote
0 answers
101 views

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. ...
0 votes
0 answers
52 views

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 ...
0 votes
0 answers
765 views

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 ...
3 votes
2 answers
72k views

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 ...
1 vote
1 answer
3k views

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 ...
1 vote
0 answers
54 views

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 ...
2 votes
3 answers
6k 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 ...
2 votes
1 answer
890 views

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 ...
1 vote
0 answers
20 views

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 ...
0 votes
0 answers
787 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 ...
0 votes
0 answers
345 views

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: ...
10 votes
1 answer
7k views

Aggregating two 4G/3G data links from 2 different sims?

Having two 4G capable sims -from truely two different operators (no virtual carriers at all)- and a Dual Active sim phone (Zenfone 2 Laser), I want to do true load balancing with a 1 sim + 1 sim 4G/3G ...
3 votes
2 answers
7k views

How to set signal strength threshold for switching WiFi on and off?

When the WiFi signal strength is low, the phone switches to a 4G network. When the WiFi signal strength is high, the phone switches to that WiFi network. This is normal behavior for any Android ...
3 votes
2 answers
2k views

Change IMEI number to obtain tablet data plan?

It looks like T-Mobile offers very cheap data-only plans, but these are only available for tablets. I have read that this is enforced by tracking your IMEI. I was wondering: Is it possible to change ...
1 vote
1 answer
2k views

Making the phone LG G2 4G LTE (D802T) use LTE permanently

I have recently purchased LG G2 D802T. In my country 4G is recently launched (Pakistan) but in my mobile while trying to search for networks it has only GSM or WCDMA (No LTE). My question is that how ...
0 votes
1 answer
82 views

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).
1 vote
1 answer
64k views

How Do I Activate 4G LTE Only On Samsung Galaxy A5(2016)

I use Samsung Galaxy A5(2016) and have just upgraded the firmware to Android 6.0 (Mashmallow). The phone supports 4G but the option to set it there is LTE/3G/2G (auto connect) on Network mode. How ...
2 votes
0 answers
43 views

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+. ...
0 votes
0 answers
68 views

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 ...
16 votes
6 answers
129k views

How can I find out which bands my phone supports

Background: I recently bought the Padfone X, and have been attempting to get it on my network. Part of this effort has been verifying information I have found online which claims that it supports LTE ...
1 vote
1 answer
5k views

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 */ ...
0 votes
1 answer
711 views

4g icon always showing on my S6 (But my cellular network is not 4g)

4g icon always shows on my top right side with signals bar on my newly bought(second hand) samsung S6 mobile. problem is that my cellular network is not 4G. It only supports 3G. Is my S6 software ...
2 votes
2 answers
28k views

Connect android phone to WAN port of router (not lan)

I would like to connect my phone to a router so that I can share its internet connection among the devices in my house. How do I connect the phone to the WAN port of my router so that the router is '...
3 votes
4 answers
58k views

How to safely activate LTE on S4 mini (GT-i9195) running 4.2.2?

I'd like to activate LTE on my device: S4 mini with LTE (GT-i9195). There seems to be ways of doing this, but they seem rather "scary" and experimental at best: http://www.androidauthority.com/...