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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 ...

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34 views

Android phone as IP camera, connect to it from mobile network

I have Samsung galaxy A8 (2018) with Android 8. I installed app IP Webcam. And my android phone now works as IP camera on WIFI I can stream video to my Dahua nvr. My sim card with specific APN have ...
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0answers
32 views

Cannot connect to mobile data

So i have a mate7 (mt7-l09) and I can't connect to mobile data. I turn on the mobile data but the send and receive icon never shows up. I have already tried changing APN and switch Carrier BTS. Its ...
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3answers
78 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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0answers
26 views

Trigger network search/change without airplane mode?

Is it possible to trigger the phone to search for network, i.e find the best/closest tower again? I don't want it to be with airplane mode, since I'm usually using the WiFi at the moment I need it. ...
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0answers
35 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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0answers
47 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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vote
1answer
68 views

Completely disabling cellular data and limiting apps only to WiFi when available

I've recently (2 months ago) purchased my first smartphone. I'm on a sort of prepaid contract (I pay what I use in terms of calls and SMS and it's automatically withdrawn from my bank account). For ...
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0answers
40 views

Cannot change mobile network Sony Xperia V

I have a Xperia V device which worked fine until few days ago. I still use 3G SIM, and I've enabled WCDMA(preffered)/GSM from settings menu (Settings->More>Mobile Networks->Network Mode). This works ...
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0answers
38 views

No internet via mobile data, while USB tethering works just fine

The PC can use the phone's connection while tethering without problems, while the phone at the same time can't. Im using my LG G6 to give my Win10 PC internet access via USB tethering. While the PC ...
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vote
0answers
13 views

Signal Problem of S8+

I recently bought a Samsung S8+. The phone is alright but I got stuck in a problem. One of the network provider SIM is not working. As a simulation, I used following steps: I exchange the slots, ...
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vote
0answers
70 views

Only one network interface active at a time in Android

I was looking into the network configurations in Android devices. Android makes WI-FI as the default network preference. And I noticed only one network interface can be active at a time in Android. ...
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0answers
25 views

Checking if android is sending 'stats' to phone producent

how to check if my android (7.0) smartphone is sending any data (statistics of usage, errors) to its chinese producent? :>
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1answer
77 views

Internet fast when sharing via hotspot or tethering but slow on the device itself

Yes, I didn't get that backwards. And all I found is "slow tethering", even here this was never asked before. So, here I am! Internet is slow on the device, but fast for other devices connected to it....
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0answers
62 views

Why does the “Mobile Networks” settings screen keep appearing when I try to use certain media apps?

Okay, this has been bothering me for some time now. I have a relatively new Galaxy S8. Precise specs are below. The Issue Whenever I try to open certain media-related apps on my smartphone, the app ...
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0answers
36 views

Can i access web server on Android device remotely(from another android device) over mobile networks?

Working on a distributed storage system for mobile devices. The plan was for data to use a peer to peer network for distributing files(Files are sent from phone to phone, and not through a middle man ...
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0answers
64 views

Galaxy J7 (j700m) can`t connect to network

Yesterday I instaled a new ROM (6.0.1) to my Galaxy J7. When I try to call I get No registrado en la red (Not registered on network) message, and I don't know what to do to fix it. I tried to search ...
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0answers
43 views

Data Warning Slider Missing

I used to have 2 sliders, a warning slider & a limit slider, now just a limit slider is present.
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0answers
231 views

Force android 7.0 into roaming for better connection

I do a daily commute to work from country A to B. My mobile is from a phone company in country B, and travelling into B, the switch between country providers is handled rather gracefully. The problem ...
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vote
1answer
55 views

Some Apps not woking in cellular Data

I have an Blackview BV 8000. Some Apps like Chrome, Stack exchange, Facebook, WhatsApp... Work without a problem. However apps like Gmail, YouTube and Google play store don't work on cellular data. ...
2
votes
1answer
76 views

Network Support Explained

Is a phone that supports the most network bands ideal if you are trying to get the best cellphone service? I have noticed that for example the iPhone supports dozens of bands https://www.apple.com/...
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0answers
115 views

Messaging problem on Xiaomi Redmi Note 4 (Jio Sim)

Problem: I am not being able to send or messages on my Xiaomi Redmi Note 4 recently.I am using a Jio sim with a plan of Rs 98.I have my 4G data and Volte turned turned always turned on.I also ...
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0answers
122 views

Any way to share internet over phone call?

Once my mobile internet data volume ran out (again), and so I thought: but hey, I have a WiFi at home with no traffic limit, and I have another SIM-card in another rooted android smartphone, to which ...
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0answers
68 views

Automatic data disconnection when abroad : a question beyond “normal” roaming cases

I'm pretty new to this community. I'm not 100% sure that this is the proper place where to ask for this question. In case a moderator will point me towards the proper direction. Ok, let's start. I ...
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2answers
1k views

Stop auto-selecting cellular network

I'm roaming in Mexico with an international plan via a US-based GSM carrier. This gets me 4G on TelCel in Mexico, and it works great. However, occasionally, for reasons unknown to me, sometimes my ...
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vote
1answer
3k views

Restrict app network access on Android Oreo

Two days ago, I got android oreo 8.0 update for my xiaomi mi A1 phone which is a device based on Android One. But one of the features which I loved the most before Oreo was complete control of network ...
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1answer
341 views

Can airplane mode turn itself off automatically

If I have a phone with airplane mode turned on, can it turn itself off automatically (without user interaction)?
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1answer
163 views

Not receiving SMS messages

I recently switched phone provider, and since then many of the messages sent to me never show up, as if it was never sent. But the sender shows it as sent (though I think it can't know it's been ...
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0answers
47 views

Sim network code for HTC Desire 816 does not work

i bought a code to sim unlock my phone but then it doesnt work because is my phone is from Bosnia and Herzegovina and "For these models, the codes have been changed by the operators.Unlock code will ...
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0answers
250 views

Update Samsung galaxy grand prime

Trying to update to 6.0 marshmallow but says a network or server error has occurred try again later. How do I fix this problem or do I really just have to wait until T-mobile automatically sends ...
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vote
3answers
1k views

No Mobile Network In Samsung Grand Prime

Samsung Grand Prime Phone. There is no Mobile Network. I tried *#*#4636#*#* but it didn't bring up the Testing Menu. I am not able to search operator or change the network mode. The IMEI in *#06# and ...
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1answer
174 views

Can Truecaller Android get Caller ID on 2G connection?

Just curious. Truecaller emphasizes that it requires 3G/Wifi connection in order to tell caller ID? Does this mean that if I'm in area where only 2G is available and no Wifi is available Truecaller ...
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0answers
180 views

Samsung Galaxy S5 Duos (G900FD) Network Mode Settings in Service Mode

I have been using Samsung Galaxy S5 Duos for last 3 years. However, recently I messed up with some network settings in Service Mode (*#0011#). Problem Statement: My phone is not picking up LTE/WCDMA/...
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0answers
65 views

Problem “Not registered on network”

I have an old Samsung Galaxy Note II. Rooted. One day it went off. When I restarted it, it went to a somehow hybrid state between factory and the status it had before crashing, i.e. I had to ...
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1answer
128 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 */ ...
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0answers
221 views

Provide APN settings from outside without Internet (i.e. SMS, QR Code)

I'm looking for a way to provide APN settings to a device that doesn't have an internet connection yet. It is intended to set up hundreds of devices more quickly by a variety of users across the ...
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0answers
45 views

No service - fresh repaired phone

I just received my phone after being in service where they replaced my motherboard (Allview V1 Viper L a.k.a. Gionee Pioneer P6). I put the SIM card from my temporary phone (working fine) to my ...
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votes
1answer
30 views

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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0answers
95 views

Samsung Galaxy A7 - AF00FD -showing signal with no sim

I just flashed a new rom to Galaxy A7 model A700FD because of bootloop issue after uninstalling SuperSU, the previous android version was still kitkat 4.4, and updated it to 5.0.2 lollipop version now....
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0answers
86 views

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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1answer
99 views

Mobile Network Problem [closed]

I am facing mobile network issue in my office only. When I enter in my office my mobile signal problem arises, Is it due to the router or some other electronic devices? And when I go out from my ...
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votes
1answer
73 views

How do I tell whether my phone is roaming?

How do I tell whether my phone is roaming, preferably on the lock screen?
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0answers
27 views

Share phone's internet over existinf wifi network

i want to share my phone's 3g over my existing wifi network. NOT hotspot ( because phone's wifi signal is too weak). is this possible?
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0answers
245 views

Galaxy s6 edge does not connect to mobile network when leaving WLAN after upgrade to Android 7

My Samsung Galaxy s6 edge does not get internet access via mobile networks when leaving the WLAN area. After going into offline mode and then online mode again, everything is fine, but until then, ...
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0answers
57 views

Block internet access before firewall starts at boot

I have an old android phone with Ice Cream Sandwich and droidwall as a firewall, which makes sure that apps can't use the 3G unless I enable it for that app. Droidwall starts on boot but there is a ...
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0answers
2k views

Nexus 5x No Wifi. Default MAC 02-00-00-00-00-00 change attempt

So I bought new Nexus 5x with android 6.0 and everything worked fine, but when I updated to 7.1.2 suddenly wifi stoped working. (It seeks for wifi networks forever). When I go to settings I can see ...
1
vote
0answers
270 views

Custom ROM and 4g/ LTE error.

I installed Noble ROM in my SM J200G. After installing it, I was not unable to connect to LTE which I was before. My stock rom, when rooted, used to connect to LTE without any error. My carrier is ...
2
votes
0answers
4k views

Why does my Motorola G4 loose its mobile data connectivity while showing 'Suspended' next to the carrier name?

Suddenly since yesterday, whenever I activate mobile data on my Moto G 4+, it says suspended below the carrier name: Hence I don't have access. This happens only most of the time, sometimes it ...
1
vote
1answer
435 views

Samsung devices: dual networking

I have the following setup: a Wi-Fi device which is NOT connected to the internet, like a drone or IoT device. The data of the device shall be uploaded to the internet. While it is possible to ...
3
votes
2answers
2k 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 ...
1
vote
0answers
69 views

Cellular network name appearing twice

The network operator name is being displayed like: VODAFONE IN – Vodafone IN [Screenshot] (left-top) Instead of appearing twice, can it be made to appear only once? Or can it be removed? ...