Short for "3rd generation mobile telecommunications", 3G generically refers to a set of standards for mobile phones and mobile telecommunications services. Often used when referring to a 3G mobile data connection.

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21
votes
10answers
14k views

How does power usage for data over WiFi compare to data over 3G? (Ignore LTE for now)

If you have unlimited data over 3G so that cost is no option, which is more power efficient? Using the WiFi or 3G connection for data usage? Extending battery life being the goal
19
votes
2answers
3k views

Can I use my device on a different carrier?

Sometimes it's desirable to use a device on a carrier that does not officially sell it. Often this is due to regional differences and travel (for example, using a US phone in Europe) but also because ...
14
votes
2answers
18k views

What does “H” mean in the signal indicator? [duplicate]

I understand that the colour of the signal indicator tells me whether or not I've got a connection to Google servers or not, but what is the "H" that sometimes pops up? Usually my indicator says ...
11
votes
2answers
182 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 ...
10
votes
3answers
17k views

2G versus 3G: Does it really save battery?

I often hear the recommendation that fixing your device to 2G saves a lot of juice compared to using 3G. Is that true? Or is it really a myth?
9
votes
2answers
8k views

How do I connect to a wifi ap and 3g network simultaneously?

When I turn wifi on my 3g connection shuts down, which is fine in most cases however I need to connect to a LAN at work that is not connected to the internet and I'd prefer not to lose my data ...
8
votes
3answers
1k views

How to filter 3G traffic

Are there a way to block all 3G traffic for specified apps?
8
votes
1answer
269 views

Will using a vpn also encrypt my 3G traffic?

Just wondering, because I've just set my phone up to forward wifi traffic through my DD-WRT router. But I've no way to verify if my 3G traffic is also going through my router. Does anyone know if 3G ...
8
votes
2answers
3k views

How can I check which mobile frequencies my phone supports?

I received a Samsung Galaxy Nexus as a present (in Australia), however I'm not sure where it came from so I'm not sure what mobile frequency bands it supports. Is there a way to check which ...
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 ...
6
votes
1answer
280 views

Buying apps and entering credit card number via 3G/GPRS. Is it secure enough?

As title. Of course using Android market and the Google Checkout payment. By the way, how about other market-like apps?
6
votes
1answer
486 views

is it possible to mask esn of a smartphone?

On a computer, it's possible to trick a server that you are using a different computer by masking MAC address. Is there something like that for android? Rooted phones have full access. So I'd think ...
6
votes
3answers
1k views

Only automatically connect to certain Wi-Fi networks

I have an HTC Desire with Android 2.2. My problem is that there may be open Wi-Fi networks nearby that require a password once connected, e.g. hotspots at coffee shops. My phone connects to these, ...
6
votes
2answers
319 views

Load images only on wi-fi?

Can I somehow tell my phone to load images in (for example) browsers, gmail, twitter, etc. only when connected through a wi-fi connection? Mobile internet is pretty expensive in my country so I don't ...
6
votes
3answers
1k views

How do I limit 3g speed on my Nexus One

I have 1gb of traffic per month. Internet speed is 2.2mbits, so it's pretty easy to waste all gb in a few days. I don't usually watch youtube from my phone, and 500-700 kbits would be pretty enough ...
5
votes
3answers
525 views

What are the benefits of 2G+3G mode?

Some of the advanced power control widgets or 2G/3G switching widgets allow the following options for the radio mode: 2G 3G only 2G+3G What are the benefits of 2G+3G over running 3G only? Are ...
5
votes
4answers
5k views

Google Talk not working over Corporate Wifi. What can I do?

Whenever I'm connected to our corporate wifi, google chat goes offline (i.e. the contact list fades to grey). I think this is due to a port setting. As far as I know only 80 (http), 443 (ssl) and ...
5
votes
2answers
15k 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

Bluetooth 3G modem

I have a Nokia 6500S-1 which I previously used as a 3G modem (with Windows). Is it possible for an Android device to use this phone as a modem (just like the windows PC does), but expose the modem ...
5
votes
2answers
4k views

Analyzing packets in android

I want to analyze packets on my rooted Android mobile phone. What I did so far: I have installed shark for root and shark reader. I tried to sniff packets, but shark reader only shows RAW packet. ...
5
votes
3answers
15k 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
966 views

What controls the 3G radio sleep time?

Is there any way to control how/when the 3G radio goes to sleep? Is that, in fact, what it is doing?
4
votes
2answers
2k views

3G Connection Not Working on Samsung Galaxy S2

I have a Galaxy S2 that for some reason does not work when it's connected to a 3G network(or at least I think it's connected, there's a '3G' symbol next to my signal meter). When I say it doesn't ...
4
votes
1answer
936 views

Can anyone reccomend a 2g / 3g switching widget?

I've just got my new HTC Desire HD and I want to switch 3G on and off as required. I used to do this on my old HTC magic and got quite good battery life compared to some friends with the same phone. ...
4
votes
1answer
1k views

Auto sync only when connected to a specific wifi network

I am getting rather low battery life when using auto-sync on 3G. I have wifi in college and at home, so I'm looking for a way to enable auto sync only when connected to those 2 specific wifi networks. ...
4
votes
2answers
782 views

Enabling Wi-Fi disables 3G service (ZTE Warp running Shinjitsu 1.5b)

I just started using this ZTE Warp (on Boost Mobile) yesterday. I rooted and ROM'd it with Clockwork Mod and Shinjitsu 1.5b (1.5.1c and 1.5.1c-beta2 did not work, for some reason). Everything is ...
4
votes
1answer
1k views

How to monitor tethering bandwidth

Is there any way to monitor 3G tethering usage. ie excluding regular 3G bandwidth. (This is for a UK GiffGaff plan, where normal use is unlimited, but tethering charged per GB.)
4
votes
1answer
407 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
13k views

How can I force 3G only on the Nexus S after the ICS update?

In earlier versions of Android there was an option to toggle data between 2G, 3G preferred and 3G only. After the ICS 4.0.3 update for Nexus S, there is no option for "3G only". Did Google lock down ...
3
votes
2answers
2k views

How can I make a 3G-324M video call?

I tried to place a 3G-324M video call to my Incredible, but the other phone says that mine doesn't support it. On the web I found someone mentioned that Incredibles do not support video calls in 3G ...
3
votes
2answers
2k views

Does the Nexus 4 have 4G?

I know it doesn't have LTE, but what about the 4G networks of other carriers? If I happen to buy one, will I be able to use it T-Mobile's "4G" HSPA+ network?
3
votes
1answer
553 views

How can I find why I'm using so much data on mobile network?

According to my provider, I've used 6.8MB of data within 3 days. The thing is, I don't know how. I've installed DroidWall and WiSync and only used Waze (a navigation app). I installed Traffic ...
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
3answers
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
1k views

disable sync when in mobile (3g) network

How can I enable auto-sync only when wifi is available? I have a small data plan and I don't want to waste it on sync.
3
votes
2answers
406 views

Prepaid plans or cards for Android PHONES?

I need to access the Web via my Android phone's cell radio only occasionally. Therefore, I am not interested in a monthly plan (and certainly not in a 2-year minimum contract). I thought that finding ...
3
votes
2answers
540 views

How can I tell the differences between a 3G, 3G LTE, and 4G phone?

I apologize if this is the wrong place to ask, but it looks like the Gadget StackExchange has been closed. I've been doing research on mobile phones and looking at different Android devices and I'm a ...
3
votes
2answers
6k views

How to configure HTC Desire for 3g connectivity in Peru?

How can I configure an unlocked HTC Desire for 3g connectivity in Peru? I have managed to add an APN so that I have EDGE but I would like to use Claro's 3.5g. I also have an iPhone with the same ...
3
votes
2answers
527 views

Nexus One: 3G/WIFI Not Switching

As of last couple of weeks, my phone has been having problems automatically switching between wifi and 3G. When i leave home, I have to completely turn off the radio and turn it back on for it to pick ...
3
votes
1answer
539 views

Unable to connect to 3G after updating my software

I have a Sony Ericsson Xperia X10, and I updated the software to Gingerbread (Android 2.3.3), but I'm having problem connecting my mobile to 3G provided by my Network. When I go to settings and ...
3
votes
1answer
5k views

How can I set Android Galaxy Ace to only use 3G network?

I am having a little bit of a hard time with my new android phone for the reason that it doesnt always connect to certain services (such as Angry Words, or Whatsapp). Sometimes I get the message ...
3
votes
2answers
544 views

3G Radio Always on When Screen On?

According to JuicePlotter, my HTC Evo's 3G radio is always on when the screen is on -- even when doing absolutely nothing. I tested this by turning the brightness down to 1 and opening the settings ...
2
votes
2answers
2k views

How can I turn off the 3G connection?

I'd like to be able to turn the 3G connection on and off without navigating the "Settings -> Wireless and networks -> Mobile Networks" menus each time. Is there a widget (or some other way) of ...
2
votes
1answer
399 views

Force to use 3G and WiFi is on?

Can I force android through settings to use 3G for all downloads when both WiFi and 3G are on? The main reason why I am trying to achieve this is that I want to use WiFi only as a mean to connect to ...
2
votes
1answer
4k views

How to use GPRS (not wifi or 3G) to get internet access?

With my Galaxy 5, I can visit websites using wifi, but how can I access them using GPRS (=when no wifi around)? I don't want to pay for a 3G data plan with my mobile operator. Background: On my old ...
2
votes
1answer
85 views

Nexus one hack to work on 8500/1900 freqs

I have a nexus one that (by default) does not support 8500/19000 3g frequencies. That forces me to use EDGE or lower with my carrier. The question is: Is this something that can be modified or is it ...
2
votes
2answers
307 views

Can the Nexus 7 LTE connect to 3G networks?

Is it possible to connect to 3G networks with the Nexus 7 LTE? Is it possible with an unlocked device or only with limited networks or standards? I've tried to Google it but no one seems to have ...
2
votes
2answers
9k views

Whatsapp doesn't work over 3G,everything else works fine

A friend has a factory fresh, unrooted Samsung Galaxy S Duos, and except for Whatsapp every other internet accessing app works fine on a 3G or EDGE connection. She has un/reinstalled Whatsapp several ...