Hot answers tagged 3g
9
I never really did a precise comparative test but it is clear that wifi uses way less power than the 3G data connection. So I would recommend to use wifi whenever possible if the goal is to extend battery life.
The only exception I would see is if you often use the phone but for a very short moment at a time, the delay it takes for the wifi to connect can ...
8
First be aware that you're transferring data over a wide area wireless device (the range of 3G is much wider than Wifi), therefore it is easier for an attacker to snoop on whatever your device is transmitting on 3G than on Wifi. The 3G/GPRS only has a lightweight encryption (to limit unnecessary use of CPU power and battery, which is already scarce in mobile ...
7
Short answer: yes.
It depends on the currently enabled Wi-Fi sleep mode. By default, Android disables Wi-Fi when your device goes into a sleep. In this case, 3G is the remaining mode of network communication, and it gets used by Gmail/Gtalk push notifications, etc. Obviously, this network communication takes its toll on your battery time. If you disable 3G ...
7
Fast answer:
Nes. Yo. Well, it all depends... on how you use your device.
Detailed answer
Self-Experiment
I just did a self-experiment to find out. Until now, I had all my devices fixed to 2G -- as that should "save juice", like the question suggests. So for 4 days now, I have 3G enabled. Surprisingly: No difference which could not be explained by ...
5
On my Galaxy S, you can hold the power button for a second and a menu will come up. Just hit "Data network mode" to deactivate it. You can reactivate it the same way.
If you don't have that, you should be able to go to Settings -> Wireless and network -> Mobile networks and uncheck Data enabled or Use packet data or similar.
5
It depends.
Try with your particular phone. Maybe download a large file and see how much the battery drains, then repeat for the other data type. Factors include how many cell towers are nearby, how many packets your WiFi drops, your specific chipset and radio hardware, software drivers, and the like.
5
Since the nature of your question is simply "is this possible", the answer is yes, there are ways to spoof your ESN. Often this is a form of phone cloning, which is also simply referred to as ESN cloning. The concept is that you take one phone and then configure it to broadcast using the ESN of a different phone, effectively "cloning" the second as far as ...
5
Despite the wide-spread information of its impossibility, an app named Super Download claims to be capable of this, as you can read in the article Combine 3G 4G Mobile Data + Wifi together to Boost Download Speeds at Geeknizer.
As expected, this comes from one of the XDA developers (elban) -- and, also expected, it requires your device to be rooted (not ...
5
Yes, it has HSPA+ which is what T-Mobile's "4G" actually stands for.
This article on AndroidAuthority should help you understanding why it doesn't have LTE.
4
The problem is, that my android device automatically turns off the 3g connection as soon as wifi is available.
Why don't you shut off Wi-Fi?
Since you can't control port forwarding or anything at work, there's not much else you can do. Although, you could just ask and see whether they'd consider opening the Google Talk ports (443/5222/5223).
4
This is set in hardware, there is nothing you can do about this. You can learn more about this in http://www.google.com/support/forum/p/android/thread?tid=395c29e6b9cab6bc&hl=en
4
This sounds like something that you need to make sure your operator has enabled on your contract, normally with smartphones a data plan is a data plan, once you've got one they give you a (monthly/weekly/daily) bandwidth limit which you can use either on 3G or GPRS, the operator doesn't care which you use.
It sounds like you don't want to pay for a monthly ...
4
There's currently no way to set a system-wide policy for this. Some apps do support doing things on WiFi only, however. Here's some info on the apps you mentioned:
You can go into the browser settings and uncheck Load Images.
GMail does not load images unless you view a message and click a button to display them.
I believe the Touiteur Twitter client ...
4
I can't remember where I read it but I read that 3G will use more power when transfering data but wifi will use more when idling. I tend to keep wifi on, but if I'm running low on power I'll turn it off to avoid the power requirements of scanning for new networks. Also as others have posted, 2G will use less power than both unless you're downloading large ...
4
While this might not be the complete answer to your issue, it appears that the Galaxy Nexus is connected to an HSDPA:9 radio (10.1mb/s theoretical speed) while the Milestone is connected to an HSPA radio (14mb/s theoretical speed, not HSPA+ which can have a theoretical speed of between 21 and 42 depending on the network). While the theoretical capacities of ...
4
Wikipedia and the XDA-Developers Wiki should be a good resource:
GT-I9250 on XDA Wiki
GT-I9250 on Wikipedia
4
If you have an (W)LAN network connected to an ADSL modem at your home, a mobile access point is like that ADSL modem; a mobile access point (AP) translates between the protocol of the mobile network to the protocol of the wider Internet. Imagine the mobile network as a LAN, and access points are the nodes in the LAN that have direct access to the Internet, ...
3
If you want to use data some of the time (sounds like you might if you're running a twitter app), I'd second Jonathan's plug for APNdroid.
Once you've installed it, longpress on your screen and select "widgets" to place the APNdroid widget on your home screen, and you can turn data on and off. The other really handy widget is "Power Control" which is ...
3
If you have root access then you could use DroidWall to give different apps, including email clients, access to WIFI and or mobile data. This would require you to use a different client for each account and wouldn't automatically differentiate between WIFI at work or at home. :o/
(It's a pretty rough work around but the best I could think of...)
3
First, WiMax and 4G are completely separate. WiMax already has real-world implementation, whereas 4G does not; 4G is still in development.
Second, 3G LTE is also completely separate from 4G. LTE also has real-world implementation.
A 3G LTE phone can only operate at 4G speeds if it has hardware capable of it. The manufacturer will undoubtedly advertise ...
3
My Data Manager is a free app available in the android market which will aid you in catering your needs. It will give you a detailed statistics of which app/service used how much data.
Edit : did not notice this was answered in the comments already.
3
There's an app for 3G only mode:
https://play.google.com/store/apps/details?id=com.mobnetic.only3G
However your phone should automatically try and go for 3G if there's a 3G connection available, it will never choose 2G over 3G so I don't see why this would be useful... There's still a 2G only mode to save battery in Settings -> Mobile Networks
3
Yes, your phone supports two ways to export its internet connection via bluetooth:
DUN-GW (Dial-Up Networking Gateway)
PAN-AP (Personal Area Networking Access Point)
See also this question (its answer about bluetooth).
In short: PAN is supported from Android 3.0 onwards as client. Android <3.0 users may have luck with Wireless tether for root users. ...
2
I can confirm the experiences of 3G using more power than wifi, and I do believe it is, in fact, stated by Google somewhere in the Android FAQ.
The technical reason probably has to do with the fact that there is much more negotiation going on for 3G, where there could be many radio towers involved, and where they will actually instruct the phone to beef up ...
2
The main battery drain happens when there is actual data transfer. Since the speed of WiFi is much faster compared to 3G, it uses less power to download the same amount of data since it finishes downloading faster.
Also the transmuting power of WiFi is usually smaller than this of a 3G radio since the access point is much closer and the signal much stronger ...
2
While it was true in previous generations of phones that Wifi used more power in idle, it's less true in later generations(think HTC Desire Z and up), with latests wifi chips.
If you are using data, Wifi is then preferable: uses less power, and can have more bandwidth and less latencies depending on the provider… Although public hotspots tend to match ...
2
It depends on several things
As Matthew Read mentions, the hardware, your location, and the other fiddly bits about actual communication are important to the discussion. But, you also need to consider what you're doing with the phone.
Are you retrieving largish amounts of data often? If so, Wifi may be less drain on the battery by letting you finish ...
2
There isn't a way to do this in the default settings for Android devices and most people are surprised to learn that they can keep sync on full time without exceeding even modest data plans.
I would recommend checking out Tasker. It's an Android application that allows you to automate almost anything on an Android device. You can use it to automatically ...
2
Check that the following setting is ticked:
Settings->Wireless & networks->Mobile networks->Data enabled
Also verify that the access point name settings are correct and the correct access point is chosen. You should be able to find the details of what it should be on the Vodafone website. The settings are at:
Settings->Wireless & networks->Mobile ...
2
Instead of widget use apps like data switch. Unlike widget this app doesn't consume resource when idle. There are tons of other apps/widget if you don't like this one or this one doesn't work for you. For eg:
https://market.android.com/details?id=com.aispl.mdsswitch
https://market.android.com/details?id=ru.chernish2
...
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