Questions tagged [mobile-network]

A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed bandwidth within each cell.

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Phone spontaneously 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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Is there a way to force LTE/GSM-only mode for mobile network? Without WCDMA, UMTS (3G)

I want to be able to receive calls without VoLTE while also forcing 4G over 3G. Network types does not support the desired behavior as I understand: typedef enum { PREF_NET_TYPE_GSM_WCDMA ...
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23 views

Lost mobile data connection upon Android 11 minor upgrade - from Sep 1, 2021 to Nov 1, 2021 - APN menu gone - Motorola moto g 5G

My Motorola moto g 5G was updated to Android 11 with Android security update Sep 1 2021 a few weeks ago. Everything worked fine until a few days ago when there was a seemingly minor update to Android ...
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Speed up network selection

I am living on the border between two countries and consequently I often have to manually select a network, either from one country or from the other country. My issue is that searching for the ...
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32 views

Japanese SIM card not connecting to network in US

I have a Samsung Galaxy S8 SM-G950U that I used with Verizon. I moved to Japan and got a Japanese SIM card through SoftBank and used in my Galaxy S8 without a problem. My account has a global roaming ...
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Why Messenger still works even after I disabled its network permissions? [duplicate]

Actually sometimes I want to use the internet on Android but don't want to get the notifications from the social media apps like WhatsApp, Facebook, Messenger Instagram, Telegram etc. So what I tried ...
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Is there a way to stop Android messages from network providers?

I receive ads from my network provider via Android pop-ups: Is there a way to disable it? These messages are extremely annoying, I woke up last night due to the brightness of the screen, as these ...
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62 views

The game sees that I am playing from the emulator(Bluestacks) or from the virtual space. How can you fix this?

Let me make a note: Everything works on a real phone. So I play one game (Madfut 22) and when I go into Trading mode on the emulator, the download (looking for an opponent) goes on endlessly. (...
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Cannot bind to Cell Network Interface example with curl

I am trying to use the Mobile Network interface rmnet_data0 while Wi-Fi wlan0 is enabled. You can read my progress with the developer JsBergbau of BindToInterface at this link https://github.com/...
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26 views

Cannot choose different cellular network while on roaming

I am an EU citizen visiting a different country now (but still in EU), in the country's capital. For my travels I have bought a data pack from my provider (I don't have/use data otherwise). Now ...
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Cannot connect to 2G/3G networks using Android 11-based custom ROMs

I've tried Android 11-based ROMs, such as BlissROM, HavocOS, and crDroid, on Redmi 4X (santoni), but none of them could connect my phone to 2G (GSM) or 3G (WCDMA) networks. I've confirmed that the ...
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966 views

Note 10 Plus Stuck with Partial Flight Mode (Faded Blue). What does this mean? Is this an indication of hardware failure?

I haven't yet come across a situation where factory reset didn't resolve the issue. This one is very intriguing to me as I could not conclude why the phone could stay in the partial flight mode (faded ...
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Mobile hotspot & tethering & VPNO IMSI

After a lot of searching I managed to set my Mobile Virtual Network Operator type to IMSI (I think it was from SPN) to get my USB tethering and mobile hotspot working. However, I have absolutely no ...
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660 views

Battery usage for "mobile network standby" even without SIM-card

I have a phone reserved for development, which has never seen a SIM-card (to avoid accidental use of expensive amounts of data transfer). Now, when checking battery usage, I see 4% accounted to "...
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Wifi, mobile data, bluetooth isn't working after flashing stock rom

So I have an Asus ROG phone 2 device which was stuck into boot loop before. To get rid of that situation, I flashed the stock rom, and wiped user data by going to recovery mode. But for some reason, ...
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Mobile data enabled but not network access

Until recently I was using ViperOS on my Redmi 4a. I couldn't send or receive MMS, but mobile data worked fine. Then I changed the operator (French operator Prixtel with Orange), and mobile data didn'...
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103 views

How to fix "Not registered on network" on samsung galaxy grand prime +?

I bought this smartphone from Turkey and it is most probably a clone/modified handset. The IMEI number written on the back of the device is different than the IMEI number shown in settings. I ...
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33 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 ...
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81 views

Prevent app from accessing mobile network on Android 8?

I am on Android 8.0.0 and not able to find an option to prevent an app from accessing the mobile network. Did I just not find it or doesn't this feature exist on version 8 yet?
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Able to text and use internet, but no phone calls

It is a refurbished Yureka Note. I added a newly activated sim in it. It's sending and receiving text messages. After saving the gprs/mms settings sent by mobile operator, I am able to use internet (...
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Restore mobile network in Nokia 6.1

Mobile network in Nokia 6.1 plus completely lost. I have tried many times to restore but wasn't successful. Any help?
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Why do LTE Network Interfaces Change Names?

You may have seen my earlier question here detailing my struggles with multiplexing LTE and WiFi on a rooted Android device. Much of this stems from an issue I seem to run into with the LTE network ...
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83 views

Google Play Store uses mobile network, ignoring Data Saver settings?

One of my apps is allowed to use the mobile network, and all others are confined to wifi. This is specified in my Data Saver settings, but according to GlassWire, Google Play Store is still using the ...
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203 views

Intermittent failure to receive SMS and MMS messages

I noticed an issue in mid December where a few messages in a row that were sent in a group MMS were never received on my phone. A few days ago, I had the same issue with an SMS message sent to me. ...
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32 views

Wifi Card / Mobile Hot Spot

I am learning about networking, specifically the data link to session layers. I have an extra android phone I have been learning with on various things, and I am at the point where the application ...
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52 views

Some websites not reachable using cellular data but working perfectly using Wifi

I a have a Xiaomi mi 9 se phone and I am not able to access some websites using their IP adress. To give you some context, I have some servers I wish I can access but it not possible, I receive a ...
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1answer
31 views

Latency spikes regularly spaced on a OnePlus5 phone, reproducible on both ATT & TMobile

I'm seeing latency spikes consistently spaced. I'm using packetlosstest.com to check latency (also experiencing the issue with real-time apps). Normal latency is ~100ms, at regular intervals I ...
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532 views

Unknown phone number

An app that I need is not recognizing a SIM/Phone number. ...But the problem is not the app: Before we go: I've visitted other forums, but the answers are uneffective, completely unfit, or oriented to ...
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1answer
5k views

Enable usage of mobile data while connected to a WiFi without internet connection

It is possible to allow my device to use mobile data while connected to a WiFi hotspot? The reason being is that the WiFi hotspot I connect to does not have an internet connection. So I want to be ...
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1answer
115 views

Network stack broken after uninstalling AFWall?

Since uninstalling AFWall and rebooting, I "connect" to LTE/3G/2G and wifi but there is always a little X on the icon and never any network access (can't actually access anything with ...
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291 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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283 views

Value for "Global auto (prl)" to fill default_preferred_network on build.prop

My Smartfren Andromax A with LineageOS 15.1 can't send & receive SMS unless I set my default preferred network to global auto (prl) and then perform a hot reboot. I have an idea to edit my build....
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Why does my mobile data work only on hotspot?

I own a Samsung Galaxy A71 and I'm on Reliance Jio network. When I had bought this phone and put a new Jio SIM on it, my mobile data worked fine, but the hotspot didn't. My laptop browser said 'DNS ...
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509 views

Nokia 7 plus network issues

I bought a used Nokia 7 plus not long ago and it worked perfectly at first. But recently I have been encountering multiple problems concerning the mobile network connection of my phone. Those ...
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38 views

Does cell service provider has ability to display ads over other apps?

I came to realize that in rare occasions when using the Android phone, Cell service provider (Mobile Network provider) shows some popup advertisements. Regardless of the app, screen I was in it always ...
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1answer
76 views

Mobile data only works when tethering is active

Issue is exactly as described in the title, works when used as hotspot and connected with computer, but not on the phone directly(regardless the hotspot setting). Moreover I have to add: I am abroad ...
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1answer
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Constantly asking to reboot

My android phone (can give more details if helpful) has started to show a dialog after 1-2 minutes after booting: Reboot to update network setting? (My translation, network settings refers to mobile ...
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2answers
8k views

APN Settings: What Does Each Setting Do?

An Access Point Name, APN, is a gateway between mobile networks and the public Internet. I've done research, and there's not much online about what the individual settings are or do. This is what I've ...
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147 views

Prevent ISP DNS Hijacking

I live in a country where some sites such as Reddit are blocked. On wifi I can change my DNS to Cloudflare (1.1.1.1) and be able to access those sites, but on mobile network my ISP doesn't seem to ...
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76 views

Mobile Data stopped working

I have a Nokia Sirocco 8.1 mobile phone, about 2 weeks ago now my mobile data turned off or stopped working, I contacted my carrier (Boost mobile who use the Telstra network in Australia) they went ...
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1k views

How can I lock device on a particular network frequency using android kernel sources?

Motivation My goal is to select or lock LTE frequency bands on mobile devices with Qualcomm chipset. On some devices like Samsung Galaxy S5, we can access hidden menu: *#2263# to select the radio ...
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How can I force Android to connect to the network of current country?

I live in country A and work in country B. I have a mobile phone contract from country A. A and B are both in the EU so there are no roaming fees at all. During the day I have no network problem, the ...
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2k views

What are these carrier configuration settings and which Android service handles them?

I signed a new mobile contract and received a carrier configuration message, but it seems that the settings were not updated properly. Up- and download is way too slow (typical 3G speeds) despite "4G" ...
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362 views

Proxy server connection

I have got a question. I am a college student in India, my college provides free wifi throughout the campus . To access the wifi we have to use the proxy server connection , we use apps like psiphon ...
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824 views

Unable to install/update apps from Play store on Xiaomi A3 on data plan

I am trying to download update/install apps from the Play store on my MI A3 Jio connection, but it has been unsuccessful. All services like Facebook, Whatsapp, etc are working fine. The apps I am ...
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254 views

Is any way to lock Android KitKat to a certain frequency/band?

Normally we can lock our mobile to either LTE, WCDMA, or GSM thorough Network Mode option from setting. But I would like to lock specifically 900MHz and/or 1800MHz band, which they are included as GSM ...
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729 views

Preferred Network Type Settings

I am on Miui and the default setting for the Preferred Network Type doesn't want to save. I want to change it but when ever I close it it won't save. Anyone knows how to fix it?
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47 views

Monitor Network Availability (for phone calls)

Obviously my network carrier has some problems. Though my mobile phone shows two or three bars out of four for my mobile connection, I don't receive any phone calls (not available). Is there some ...
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102 views

Mobile data offline or timeout whereas hotspot just works

How can I troubleshoot the following situation: during mobile data my phone often is experiencing 100% time outs (ERR_TIMED_OUT) or Chrome states it is offline whereas my connected laptop through ...
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1answer
141 views

Can someone say how can I get to this network management window in my android device

My device is vivo 1718 android 8.1. I have found this Network Management window when I didn't turn on mobile data access for one app. That app pops up an alert to change the network access and when I ...

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