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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How to remotely turn mobile data on if phone is missing and device is turned on

I lost my phone, after 10 hrs phone is turned on. I am calling to my mobile number but not picking up the calls. Data is turned off. So is there any way to turn on data. Mobile: Oneplus 7
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Is it possible to connect to another device network through a VPN?

I have two devices far away from each other (each one in a different country, for example); both are connected to the internet. Is it possible to have one device connect to the other device's network ...
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Mobile data not working until switching off then on again

Any app on my Sony Xperia XZ2 Android 10 phone can't access mobile data until I go to Network > Mobile Network > Turn off Mobile data > Turn on Mobile Data. If I close the app I need to do ...
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How to search for Android apps “with” ads?

Is it possible to search for apps within the Google Play Store that contain ads? If it's not possible within the Google Play store, is there another effective way to accomplish this? I want to place ...
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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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31 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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92 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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101 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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29 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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New sim card, but Samsung J3 does not recognize mobile network and call and SMS messages could not be made

I have a Samsung phone J3. just recently started not recognizing mobile network - sometimes I cannot make phone calls and send SMS messages. WhatsApp works ok, WiFi as well. Sometimes I can call out ...
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1answer
34 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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USSD Packet Analyzer

USSD Packet Analyzer I would to analyze packets from my phone's USSD something like wireshark.Is there something along this lines?
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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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159 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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1answer
57 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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How to fix DNS issue on Snapdragon ported Device [closed]

Hello I ported a miui 9 Rom on my China Mobile m631 A1s Device . It works fine but the mobile data doesn't. It comes up but doesn't browse and the WiFi browse but if I use an VPN app like Windscribe .....
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Installed NordVPN does not appear in “available vpns” in Network Settings in Android 8.1 TV Box

I have a Sunvell T9 Android 8.1 TV box and have successfully installed NordVPN and it works fine. However, NordVPN does not appear in "available vpns" in Network Settings. I want to enable the "...
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68 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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463 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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775 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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P30 PRO connectivity

Is someone having problems with internet connection with the P30 Pro after the update to EMUI 10? Since I updated it (just updated, not a fresh installation) I'm having problems with internet. Either ...
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1answer
165 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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644 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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187 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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263 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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37 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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1answer
54 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
34 views

Pixel 3, can't find eSIM option

According to specs pixel 3 supports eSIM, but under settings > mobile networks there are no relevant options. Is this depending on whether I'm currently in the service area of a mobile network ...
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1answer
64 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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1answer
31 views

Network Locked SIM card on Unlocked Note 9

Have a Note9 on Tesco mobile, they have confirmned it is unlocked. I can use other UK SIM cards in this. Trying my AIS (Thailand) SIM it asks me for a PIN for the Network Unlock? Could this be a ROM ...
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680 views

disconnect VPN when I open game

my question about VPN settings, when I open a game as pubg my VPN automatic turnoff, how fix this problem?
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948 views

Network mode switch quick settings tile

I have a bootleggers ROM (Android 9 pie) installed on a Motorola Moto E 2015 phone. Can I add a quick settings tile that would switch between 2G only and 2G/3G/4G network modes? In Lineage and ...
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1answer
119 views

app or widget or other solution for turning just cellular radio off/on

I recently acquired an umidigi one with android 8.1 oreo naked/stock image in place and voice over wifi as well as voice over lte support. When device is in location with wifi connection, which is ...
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Can I secure my android phone from being hacked while hosting a website?

I have been able to host a website of my own using "apache http server" app from my android adjoining with "termux" app using serveo as ssh tunneling. Can I make my phone more secure, so that it can ...
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5k views

How can I view Wi-Fi connection history?

I want to view wi-fi connection history on my Android phone. Specifically, I want to know which networks the phones was connected to & disconnected from & when. Edit: My phone is a Nexus 5x (...
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1answer
133 views

Why is there “/proc/net/snmp” file on my device? Could it be due to a malware?

After reading this paper I observed a little and I realized that an SNMP socket (exactly two: v4 and v6) exists when I use ls /proc/1/net. I see them clearly. My question is simple, do the bootkits ...
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2answers
1k views

Why proxy set on Android does not work when used as hotspot?

I am setting the proxy in APN settings of my mobile network in below shown screenshot: It works well. I verified via whatismyip. However, when I enable the hotspot on the device and use this hotspot ...
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108 views

can't remove roaming letter above signal bars

I've researched a lot and I can't find any solutions to this problem. A couple of months ago I traveled by plane, and when I arrived and turned off airplane mode (I have it always turned on) I had ...
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2answers
78 views

How to check what is wrong with my mobile connection?

I have a Samsung J3 and recently I notice some irregular 'blackouts' in the mobile connection. Suddenly, the connection is completely interrupted, then the connection is really slow (like 1.9 Mbps in ...
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3answers
3k views

International roaming, forbidden networks, hidden sim toolkit on one plus 5T

I have used international roaming many times before with my one plus 5T and my native Vodafone India providers roaming plan. But this time I landed in Germany and it did not work. I've been trying ...
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1k views

Can changing APN settings in Android improve internet speed?

I wonder while reading some of blogs and even people around me suggests some changes in APN settings(that includes APN Name, MCC, MNC, APN Protocol and Bearer), claiming that will increase my internet ...
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Connected to Turbo VPN - 10.13.0.42/30. Tap to manage the network

When I use a VPN app on my smartphone, the following notification message is shown Connected to Turbo VPN - 10.13.0.42/30. Tap to manage the network Why is it connected to 10.*.*.*? Isn't it a ...
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589 views

Why using ADB command 'settings put global preferred_network_mode' doesn't reflect the changes in Test Settings?

I've been trying to search about changing network mode programmatically which was already answered, but I noticed that when using: settings put global preferred_network_mode x settings put global ...
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675 views

mac address randomization on NON-rooted Android 8.1 phone for both wifi and mobile data

I am trying to force my box to (up to date as of posting, NOT rooted Xiomi Redmi Note 5 with Android 8.1.0 OPM1.17 with security patch 2018-09-01., kernel 4.4.78perf+, gui is MIUI v10.0.2.) ...
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3k views

How to define a preferred Mobile Network?

Here is the situation: I live close to a border between to countries, one being under EU laws, the other being neutral, except when it comes to economical wars. I have a phone contract in the EU, ...
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3answers
567 views

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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45 views

How is the GSM Call Flow implemented and when is the microphone opened?

Is it possible to know how is the GSM call flow implemented on Android? I will like to know concretely when its the microphone opened.
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173 views

App to block or limit my network operator?

I'm having some trouble with my network operator. They have recently changed the underlying network they used by default to a different one and the service is very poor now. I have come to realize ...

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