This tag is meant for issues with the mobile data connection. For other connection issues please use the tag relevant to those, e.g. 'wifi', 'usb' or 'bluetooth'.

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2
votes
2answers
7k views

4G mobile data being used even when mobile data setting is off?

I have a Motorola Moto G, the 4G version, with the original ROM upgraded to the latest version (4.4.4 official from Motorola). The first thing I did when I got it was the same I have done when I got ...
3
votes
1answer
9k views

How can I force version 5.0.1 on Note 4 to only connect to 4G LTE when available?

My Note 4 running 5.0.1 will often connect to 4G rather than 4G LTE when both are available. When this happens I can turn airplane mode on and off it will then reconnect to 4G LTE, sometimes with 5 ...
3
votes
1answer
2k views

Google+ Background Data Usage

My 1GB data pack (3G) was running out a bit faster than normal, so I started investigating using the Data Usage tool (Android 4.1.2 Nexus S). That's when I found out the Google+ app had used 300 MB in ...
0
votes
1answer
453 views

Data connection keeps turning on in Alcatel One Touch?

I have an Alcatel One Touch. The data connection is turning on by itself in the past couple of months. I went to see Bell today, and the guy said it could be an app that's turning it on? How do I ...
1
vote
0answers
58 views

What is an easy method to test whether UDP traffic is blocked?

What is an easy method for an Android device to tell whether a data connection (either WiFi or mobile data alone) has UDP traffic blocked? Many corporate and public access points restrict UDP access, ...
1
vote
2answers
1k views

Galaxy S5 unable to switch to 4GLTE when Wi-fi is turned off

I have had my Samsung Galaxy S5 for about a year now and it has been working fine until a few days ago. I would use my wi-fi when I have access to it and then I would switch to my 4GLTE when I don't ...
0
votes
1answer
69 views

If Wi-Fi connection drops internet, can device failover to network connection?

Once in awhile the internet will drop on the network that my phone is connected to via Wi-Fi. It's pretty rare, but in instances when it happens, my phone remains connected to the network but won't ...
0
votes
0answers
50 views

Can't turn on mobile data on Samsung Galaxy S4

My phone is SAMSUNG-SGH-I337. I can't turn on the mobile data. there is no button in the notification panel. I went to settings and search for the button. But it is not there. I tried it manually. ...
11
votes
4answers
8k views

Which consumes less battery: Wi-Fi or 2G data?

I just want to know what consumes less battery Wi-Fi or 2G Data. My battery last long for 12- 16 hours only. I know there are lots of application which continually running and fetching data from ...
-1
votes
1answer
2k views

Major issues on Micromax YUREKA after updating to Lollipop

I am having multiple issues on my Micromax Yureka after upgrading to Lollipop: I am unable to pick up calls & the display is not coming on USB storage connection is not functioning & won't ...
0
votes
1answer
73 views

Nexus 9 - How do I change the cellular band?

I've got an international edition 32GB Nexus 9 LTE. It appears to be unable to connect to 3.5G / HSPA+ networks, as a result, I get poor data speeds (3G is pretty slow for my requirements). I've got ...
-1
votes
1answer
79 views

Apps constantly disconnecting from the internet

I've got a new phone running Android 4.4.2 and whenever I close an app, it disconnects, i.e whenever I close Messenger, it stops being connected to my WiFi so I get no notifications until I open the ...
1
vote
4answers
4k views

How to use internet from another basic mobile through bluetooth?

How to connect an android phone with the basic phone having unlimited data packs . How to use the data on their phone in android using bluetooth?
12
votes
5answers
9k views

How can I prevent my phone from using any kind of internet?

I have a weird plan and my phone went over its bandwidth usage this month... mostly just syncing up with Gmail, Twitter etc. So right now, every 5 minutes or so, my phone is telling me that it has ...
2
votes
1answer
5k views

How to stop fallback from H+ to 3G data

Is it possible, and if so how, to lock the phone to using H+ for data and not dropping back to 3G? I suspect it isn't (firmware of the radio hardware I'm guessing) but there's times where I would be ...
3
votes
3answers
30k views

Simple way to toggle between 2G and 3G connection

TL;DR Usually, I have my device locked to "2G only" for multiple reasons: saving battery-life no need for "high-speed" to simply be informed about new mail or doing the little contacts/calendar ...
0
votes
1answer
514 views

Cannot connect to a data connection on Sprint HTC One M8

Firstly, I am running CyanogenMod 12.1 on my HTC One M8, but this is an issue I also experienced running stock Android (e.g. Lollipop). The issue I am experiencing is that my device appears to be ...
1
vote
2answers
325 views

Can an android phone connect to both WiFi and mobile data network at the same time?

Can an android phone connect to both WiFi LAN (not necessarily connected to the Internet) and mobile data network at the same time? Or when it connects to one, does it have to disconnect from the ...
0
votes
1answer
198 views

Sim Card Manager Cannot Open

The sim card manger on my settings cannot be open then my sim , contacts , messages cant detect on my cp .. Even In connecting mobile data , it cant connect . its says "Insert Sim card" but my sim ...
1
vote
1answer
112 views

None, or choppy, 3G/LTE data transfer with T-Mobile US on international HTC One M8

I have an international HTC One M8, and an off-contract plan with T-Mobile (highest priced, unlimited LTE). If I go into settings and set mobile data to only use 2G, everything works reliably. With ...
9
votes
3answers
21k views

How to disable cellular when WiFi is present?

I perform all my communication via the internet (Jabber, SIP), so I only need cellular as a backup. Additionally, coverage at my home is near to nonexistent and as a result, battery drains in a few ...
3
votes
2answers
1k views

Samsung Galaxy Ace, data network mode keeps deactivating itself

Every time i turn on my data network it deactivates itself within 5 mins ,any ideas anyone? i have a Samsung Galaxy ace.
6
votes
5answers
55k views

THL W3 with v4.0.4 - periodically getting “Restricted Access Changed” and losing all SIM services

What happens exactly: when I use my SIM's data connection, after 1-5 minutes of operation (be it while the phone is active or locked), I get a notification "Restricted Access Changed", losing all SIM ...
1
vote
2answers
881 views

Does anyone have experience wireshark running on Samsung Galaxy Tab? (Verizon)

I need to get detailed request data times on Samsung Galaxy Tab on Verison network. Does anyone know what is invovled in getting Shark to run on this device?
1
vote
0answers
70 views

Losing Mobile / Cell Connection When Leaving Home WiFi

I have a Galaxy S6 (T-Mobile US). This issue started shortly after the OTA update to 5.1.1. The frequency has increased from every few days to every time I leave the house whereby a reboot is the only ...
0
votes
0answers
89 views

Unable to reset Data Usage Restrictions even after total settings reset

I had set mobile data usage restriction for my JellyBean 4.1.2 Xperia J a few months back. I had restricted all data accessing apps except one, LINE app. But now none of the apps except LINE is able ...
62
votes
2answers
42k views

What does it mean when the connectivity icons in the status bar go white/gray?

The connectivity icons (Data, Mobile Signal, Wifi) in the status bar on my Nexus S are normally green, but sometimes they go white. I can't seem to figure out what this means, as I still have a signal ...
0
votes
0answers
80 views

Very low speed for 4G on my new phone

I got a new Zenfone 2 Z551ML running Lollipop, and everything works well on it. The only issue I have, and it's a big one: the internet speed is ridiculously low when using mobile data on my Free ...
11
votes
4answers
8k views

How to make android prefer mobile data when wifi signal is very weak

When I leave home or the office there is a ring around it where I simply have no connection at all. This is because the WLAN network from my router at home or the one at the office is detected, but ...
9
votes
2answers
53k views

Allow only specific apps to use cell data, only when on 3G

I use Tasker to sync every 30 mins when on 3G. I'm on a limited data plan, and the only apps I use constantly are browser, a Twitter app (Echofon) and Whatsapp. Is there a way to allow only these apps ...
0
votes
1answer
13k views

How to automatically connect to a wiFi network and turn off 4g LTE

I'd like my Samsumg Galaxy S4 verizon phone to be able to connect to my preferred wifi networks (office and home) automatically, while at the same time turn off the 4G LTE data plan. As of right ...
2
votes
1answer
2k views

Connection to home server via https – works with WiFi, but not with 3G

I have a very weird issue with my phone (Alcatel 997D running Android 4.0.4). Let me start at the beginning. I provide certain services (mostly syncing stuff, Firefox and Cal/CardDAV) on a server with ...
0
votes
0answers
75 views

MMS Downloading Hangs on Data State Change

As a general rule, I turn my data off and pretty much force everything to be done via WiFi unless I am out and about, at which time I have data turned on obviously. However, as many know, messaging ...
0
votes
0answers
202 views

Mobile data not working in Moto E 1st Gen after upgrading from Kitkat to Lollipop version

I have a Moto E 1st Generation phone. After upgrading to Lollipop, my mobile data is not working. It was previously working in KitKat. Is there a possible solution for this?
0
votes
1answer
29 views

Bought a phone from asia

I live in the UK I bought the new htc one m9+ from asia andy data doesnt work it says service is unavailable please if anyone has any ideas
1
vote
1answer
195 views

What's the complete map from letter to mobile network type?

I was wondering about what all letters mean. Specifically the "R" that I'm currently on. I found this summary by some provider, but it doesn't contain the R-symbol that I'm on right now. These are ...
1
vote
0answers
79 views

How to use my android smartphone to call a distant modem?

I have a domotic app using a modem on a RTC line and would like to connect to the modem with my smartphone as I can do with my PC through Hyperterminal. Is there a means to do that, using the phone ...
0
votes
0answers
102 views

Internet works on USB-tethered PC but no longer on the phone itself

I have enjoyed the Internet on my ZTE Z970 phone for the last several months. Whenever at home I tethered my PC through USB. I'm posting this using my tethered computer through the same phone; ...
0
votes
0answers
44 views

Mobile connection not resuming when wifi connection ends on nexus 4

I have been having some weird cellular problems with my android as of late. I have a feeling it may be linked to some update, but I don't remember the problems being linked to a specific date. ...
2
votes
4answers
2k views

How to force the mobile data (3G/4G) connection on a single app like Google voice recognition?

When an android phone is connected by both wifi and mobile data (3G/4G), it will preferentially use wifi since this saves battery and mobile data bandwidth. However, my mobile connection is more ...
18
votes
2answers
7k views

How do I enable Mobile Data only for select apps on a rooted phone?

Unfortunately my carrier charges €0.10 per MB of data -- and I've found out the hard way that Android is a data hog. As a result I keep my mobile data almost exclusively off. Is there a way, perhaps ...
1
vote
0answers
3k views

Enable background usage of specific apps on Android 5: LG G3 skin

I remember that on my previous phone running Android 4.3 I was able to disable background usage of mobile internet, yet enable it for specific apps. Instructions to do so can be found on the Google ...
2
votes
2answers
1k views

N4 lost data connection after Lollipop update - sign into network HOME

I've been unable to use the data plan on my Nexus 4 on a Straight Talk plan after updating to Lollipop. Data's not working, and I keep getting a notification that says "Sign into network HOME". When ...
1
vote
0answers
287 views

HTC Desire 816- how do I turn on my mobile data?

I have been relying on my WiFi due to not knowing how to connect to my mobile data. When i turn my mobile data on, the switch turns green indicating that it is on however, it says disconnected ...
1
vote
0answers
56 views

How to configure maximum internet speed?

I would like to set a maximum value for upload and download speeds. I want to do this so that the monthly consumption of bandwidth per month would be reduced. This would help reduce the costs ...
4
votes
0answers
145 views

How can I diagnose what is using my 3g connection in small packets

My GSM carrier rounds all used data up to 100KB. Which means that if some app is sending/receiving 500 bytes, I get charged for 100KB. Lately I observed that I go through several hundred megabytes ...
46
votes
7answers
52k views

Can I use 2 android phones as walkie talkie? (without internet!)

I want to use 2 (or more) android phones as walkie-talkie (i.e. they talk each other without needing internet/voice call). Of course this should work with WiFi, because it doesn't make much sense a ...
1
vote
1answer
143 views

insuffient dont have enough space on my sd card [duplicate]

When I'm trying to download samthing it says "insuffient space on my device"my brean it does work when I hear that......it so confusing me..and I have engh space on my memory card
0
votes
1answer
250 views

Foreign phone won't connect to mobile data

I got a Moto G (2nd gen) in an asian country. I have brought it to the US now and use a AT&T sim card, that has a 300MB monthly mobile data plan. I'm not able to use the internet although I keep ...
0
votes
1answer
59 views

How to access andriod to my pcs hardrive using wifi

I would like to connect my samsung galaxy s4 over wifi with my pcs harddrive. It should be the same way as by the remote desktop apps but indstead of them only to use the pc hardrive. I want to get ...