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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55
votes
2answers
32k 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 ...
32
votes
6answers
16k 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 ...
13
votes
3answers
2k views

Can I use an Android phone without an Internet access plan?

I'm interested in buying an Android phone for Xmas. Currently my pick is LG Optimus One. I will be using it without any Internet access plan, only using Wifi wherever possible. Some questions that I ...
13
votes
7answers
643 views

How can I monitor and log data connection mode and rate, and log with location?

I would like to understand what connection type and theoretical data rate my phone is using for its data connection, and how it changes with different locations. I'm not looking for an actual data ...
12
votes
1answer
4k 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 ...
11
votes
2answers
2k views

Restart data connection when stalled?

Occasionally the data connection of my mobile will stall, i.e. it still looks like it does have a data connection (either "H" or "G"), but no server can be contacted. (In particular, my ROM being a ...
11
votes
2answers
181 views

Milestone outperforming Galaxy Nexus on mobile data connection speed

I recently switched from a Motorola Milestone to a Samsung Galaxy Nexus, and it seems the quality of my mobile data connections drops considerably between the devices without any apparent reason. The ...
10
votes
4answers
4k 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 ...
9
votes
2answers
2k views

Preventing mobile data use for select apps on non-rooted phone?

I have a number of apps that are fairly chatty on the network, and with a limited data connection I would like these apps to not use the 3G connection (WiFi is fine). I know that rooting the phone ...
8
votes
6answers
12k views

Can I send / retrieve MMS messages via WiFi?

Is it possible to send / retrieve MMS messages via WiFi or is it mandatory to be connected to my provider via the mobile data connection? If a user has an active WiFi connection, what happens when ...
8
votes
4answers
5k 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 ...
8
votes
3answers
12k views

Do I need internet/3G to use GPS?

I have a Samsung Galaxy S2 that has some problems with the GPS: If I use internet my navigation works but when I turn the 3G off, GPS does not work. Do I need internet/3G to use GPS?
8
votes
5answers
590 views

Wi-Fi with no data

This has always bugged me, but I really don't know the best way to ask it (sorry if this is a duplicate): Some Wi-Fi networks that I use require secondary authentication (via a browser, etc), and ...
7
votes
2answers
6k views

Does disabling 3G while having WiFi save battery?

If I have WiFi enabled and 3G data disabled, does it save any battery relative to having both WiFi and 3G enabled? With WiFi enabled, I didn't know if 3G enabled would make any difference since it ...
7
votes
3answers
3k views

How can I disable cellular data on an Android device?

Can I easily disable cellular data on an Android device and just use Wi-Fi? Does this change based on whether or not I have root on the device?
7
votes
3answers
3k 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 ...
6
votes
2answers
7k 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 ...
6
votes
1answer
2k views

With Android 4.4 (KitKat), my notification icons are always gray. Am I in trouble?

With Android 4.3 and earlier, gray/white signal icons in the notification bar informed about connection trouble concerning the Google Services (see e.g. What does it mean when the connectivity icons ...
6
votes
4answers
648 views

How To Make Android Based Smartphone Consume Less Mobile Internet Bandwidth?

Control I want to have full control over applications and have them ask whether or not i allow them to access mobile internet. I also want to disable automatic updates but enable updates ...
6
votes
1answer
826 views

Disable Data connection automatically

I own an Optimus One. I want the Data Connection to go off, everytime I lock the keypad. For that, now, I manually go to Setting--> Wireless & networks--> Mobile Networks--> Data Enable. Is there ...
6
votes
3answers
2k views

Phone keeps downloading data with no user activity, where's the leak?

I've got a strange problem. My HTC Incredible running MIUI has a data leak of some sort. It downloaded over 4 GB's of data last month and I can't seem to figure out where it's coming from. I've ...
5
votes
4answers
1k views

Is my Samsung Galaxy Tab using wireless or 3G?

I recently got a Galaxy Tab #G from Verizon, but I'm cheap so I only got the 1GB data-plan. How do I know if the Tab is using the wireless connection I'm connected to, or if it's still trying to use ...
5
votes
3answers
568 views

Minimal Internet usage on an Android phone

I am considering buying an Android phone and hence the question about Internet usage. How much Internet bandwidth can I expect to use if I want to enable syncing of contacts, calendar, email, etc. ...
5
votes
2answers
2k views

How to use XMPP/Jabber while switching between networks?

When running a Jabber client what happens (or what should happen) when switching networks (or when losing connectivity and the GSM/UMTS modem reconnects)? Can a mobile Android Jabber client (e.g. ...
5
votes
1answer
358 views

Does google voice require a data plan to place calls?

I own a Nexus S and will be travelling to US on a business trip. I will have a T-Mobile prepaid connection and intend to use Google Voice to make and receive calls. Since I am currently outside the ...
5
votes
2answers
2k views

Why does Android disable HSDPA/EDGE communication while calling?

My ISP currently has a severe outage, which is why I'm tethering my Android phone and a MacBook over WiFi. The Android phone is a HTC Desire GSM running Cyanogen 7. I have a stable HSDPA/EDGE ...
5
votes
2answers
14k 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 ...
5
votes
1answer
2k views

Should I disable mobile data while I'm connected to WiFi?

If WiFi is activated, the phone expends energy trying to find WiFi connections, even if I'm not using the internet. Is the same true for mobile data? Does the phone expend any energy trying to keep a ...
5
votes
2answers
298 views

What system app stores the cellular network settings?

Before installing a new ROM, I backed up all data from my system apps using Titanium. I installed the new ROM, and also put in a new SIM card from a different network (so it was in on first boot-up ...
5
votes
1answer
569 views

Android USB data/power over audio jack

Is it possible to connect my Android (Droid 2 Global) to my PC using an USB->Audio converter? Square is able to interface with their device over the audio jack on Android. iPod shuffles are ...
5
votes
1answer
167 views

How to check how much battery the data network is using?

How do I check how much battery the data network is using? When I enter Settings->About phone->Battery usage I get the following: Voice calls Android OS Display Android System Dialer Cell ...
5
votes
3answers
217 views

My phone hates 2G + Sd Card

my HTC Wildfire with CM7 - RC4, doesn't like a combination of two things: Data enabled on a 2G Network SD Card inserted. When these two conditions are met, either the phone will slow down to a ...
5
votes
3answers
14k 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 ...
5
votes
1answer
11k views

How to force network operator selection once and for all?

I'm using HTC Desire running stock Android 2.2 (with HTCs enhancements). There's a network operation selection in Settings / Wireless & netwokrs / Mobile networks / Network operators, which allows ...
5
votes
1answer
275 views

Does APNdroid eat battery?

Someone suggested that APNdroid will cause your battery to drain because your phone is continually attempting to connect to the disabled APN. Makes sense, but I wonder if there's something I'm ...
4
votes
4answers
3k views

Is it possible for my mobile carrier to track my wifi usage and bill me accordingly?

I watch a lot of inspiration videos from TED (www.ted.com.au) on my new Galaxy S2 phone. However, I only do this when I am at home and can access my home wifi network. My home wifi and the phone's 3G ...
4
votes
1answer
401 views

What is an unsupported unsolicited response code 11016?

My UK Nexus S (Android 2.3.2) has real problems sustaining a reliable data connection on 3G even when I have a full signal in London. Connections time out or pages/tweets/whatever load exceptionally ...
3
votes
2answers
739 views

How To Prevent Uploading From Interrupting When Screen Is Off?

When screen goes off, uploads get interrupted especially YouTube uploads and everytime i have to resume phone to continue uploads. The problem is that in case of YouTube, videos stutter which i assume ...
3
votes
2answers
242 views

How do I avoid problems when going from Wi-Fi to cell data connection (3G)?

I have my phone (Droid X) connected to my home Wi-Fi network, but when I leave it can take applications (Google Maps, Rhapsody, etc) probably 10-15 minutes before they function normally without either ...
3
votes
2answers
626 views

Are GPS-tracking apps data dependent?

Are GPS-tracking apps data dependent or will devices use GPS signals alone, to notify their locations? I am looking for a GPS-tracking app to track family members on a trip where we gonna have ...
3
votes
2answers
382 views

Minimizing data usage for users with data caps

To reduce my phone bill, I recently switched from an unlimited plan to a prepaid plan which only has a 50 Mb data cap per month. I think that should be adequate for email, google voice, and ...
3
votes
2answers
393 views

Deferring GSM data connection

Frequently I am in the range of WiFi. Still when waking up my phone (Motorola Milestone) it usually makes a GSM data connection (visible in the top bar), and only after few seconds the WiFi connection ...
3
votes
1answer
5k views

Is it possible to selectively limit background data usage?

I have a sufficient data-plan so I've never worried about this... tomorrow though, I'm travelling abroad. Due to this, I will have restricted 3g usage. Are there any apps or Android settings to ...
3
votes
1answer
1k views

How does Android chooses among multiple access points?

I have been doing a lot of research on this. Unfortunately I was not able to find how, by default, Android chooses among multiple access points. For instance, if a user walks into a mall and there ...
3
votes
2answers
105 views

Email client that restricts certain accounts to particular connection types, e.g. company WiFi at work, 3G/GPRS for personal

Is there such an email account whereby in the account settings, one can choose which connection types that the account can use? Would like this feature so that checking personal email goes through ...
3
votes
1answer
9k 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 ...
3
votes
1answer
3k views

How to force phone to switch to faster mobile data network during file transfer

For some context, I am downloading Dragon Mobile Assistant which is a 40+ mb apk from the Google Play Store. I have an unreliable connection to Verizon Wireless' 3G mobile data network. If I am a few ...
3
votes
3answers
2k views

data packet automatically activated on gingerbread 2.3.6

I just upgraded my samsung galaxy SL to gingerbread 2.3.6 After that, everytime my data packet is automatically activated all the time. I switch off my mobile network data and lock my phone, and then ...
3
votes
0answers
222 views

Google service connection + Corp wifi

When connected to the corporate wifi the signal bars turn grey suggesting that there is no connection to Google services. Gmail, web browsing, contact sync, calender sync, play music all appear to ...
3
votes
0answers
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 ...