1. derande's Avatar
    i live in an at&t 4g area but rely mostly on wifi where i usually am. since 4g sucks tons of more battery than 3g, is there a way (or an app) to easily bump down to 3g to conserve power?
    10-10-2011 09:57 PM
  2. XANAX's Avatar
    I know Widgetsoid and Elixir2 have 4G toggle widgets.
    10-11-2011 12:12 AM
  3. Kevin OQuinn's Avatar
    4G on our phone doesn't use any more battery than 3G. 4G is just a marketing term for faster 3G.

    You can't turn it off.

    Sent from my SGS II
    Mikegrann and derande like this.
    10-11-2011 08:09 AM
  4. derande's Avatar
    learn something new everyday! i've heard way too much false information about at&t's "4g" sucking the life out of batteries.
    10-11-2011 08:14 AM
  5. ijip's Avatar
    nah, att uses older tech that is not really 4g though in terms of speed it certainly compares favorably to sprint wimax system.
    when people talk about 4g sucking a ton of batt, they are talking about Wimax (from sprint) or LTE from verizon and now att is starting to jump in the game.
    ATT gets from 1.5 megs on the low end to about ten or so on the high end for their "4g" and same with sprint. Verizon gets 5 or so on the low end and past 30 on the high end!!
    10-11-2011 09:59 AM
  6. iskor12's Avatar
    AT&T does have LTE only in select cities. They are slowly expanding it. Mean while, they try to pass off HPSA+ as 4g as do many other companies such as sprint and T-mobile. AT&T only has 2 phones that are LTE compatible.

    In other words...you are, in a since, running on a 3g+ or a more advanced version of 3g. HPSA+ peak data rates up to 56 Mbit/s in the downlink in theory (28 Mbit/s in existing services) and 22 Mbit/s in the uplink. LTE runs at downlink peak rates of at least 100 Mbit/s, uplink peak rates of at least 50 Mbit/s.

    The ITU-R announced in December 2010 that WiMAX and LTE are 4G technologies. Technically they are closer to 3.9G. LTE Advanced is the way to go.


    Lessons over for the day...
    10-11-2011 01:54 PM
  7. patrkoch's Avatar
    Forgive my newbness but can you turn off 3G and just use Edge? I'm a current iPhone user and I just turn 3G off unless using it.
    10-11-2011 05:46 PM
  8. shansmi's Avatar
    Maybe some should do a little more reading and less speculating. #1 rule of Android, Google is your friend - use it. We call HSPA+ 4G for a good reason! Because the 3GPP says we can!!!!! Why, because HSPA+ speeds are at the low end of 4G LTE speeds.
    10-11-2011 09:01 PM
  9. Kevin OQuinn's Avatar
    AT&T does have LTE only in select cities. They are slowly expanding it. Mean while, they try to pass off HPSA+ as 4g as do many other companies such as sprint and T-mobile. AT&T only has 2 phones that are LTE compatible.

    In other words...you are, in a since, running on a 3g+ or a more advanced version of 3g. HPSA+ peak data rates up to 56 Mbit/s in the downlink in theory (28 Mbit/s in existing services) and 22 Mbit/s in the uplink. LTE runs at downlink peak rates of at least 100 Mbit/s, uplink peak rates of at least 50 Mbit/s.

    The ITU-R announced in December 2010 that WiMAX and LTE are 4G technologies. Technically they are closer to 3.9G. LTE Advanced is the way to go.


    Lessons over for the day...
    And which two phones are those?

    Regardless of what the network is capable of the phone needs to be able to take advantage of it. Right now the fastest a phone can do is a theoretical 21mbps, but you'll never see that kind of speed.

    Sent from my SGS II
    YourMobileGuru likes this.
    10-12-2011 12:27 AM
  10. iskor12's Avatar
    And which two phones are those?

    Regardless of what the network is capable of the phone needs to be able to take advantage of it. Right now the fastest a phone can do is a theoretical 21mbps, but you'll never see that kind of speed.

    Sent from my SGS II
    My appologies....they don't currently have a LTE phone, but they are in the works. They currently have only 3 devices that have LTE.

    HTC Jetstream
    USB Connect
    Mobile hotspot

    From AT&T's site...
    AT&T's 4G LTE network is now live in five markets: Atlanta, Chicago, Dallas, Houston and San Antonio.
    AT&T is planning to invest in the $20-billion range this year in its wireless and wireline networks.
    AT&T plans to launch 4G LTE in 15 or more markets by the end of the year, and plans to reach approximately 70 million Americans with its 4G LTE network by the end of the year.
    10-12-2011 07:26 AM
  11. iskor12's Avatar
    Maybe some should do a little more reading and less speculating. #1 rule of Android, Google is your friend - use it. We call HSPA+ 4G for a good reason! Because the 3GPP says we can!!!!! Why, because HSPA+ speeds are at the low end of 4G LTE speeds.
    ITU-R or ITU Radiocommunication Sector says that it isn't 4g, but it is slightly better than 3g. Oh well...All I know is that if you call and ask AT&T if HPSA+ is 4g, they will say that it technically isn't.
    10-12-2011 07:31 AM
  12. shansmi's Avatar
    Since the g stands for generation technically it is not but what I said is true. TMO was first to do such a thing... We did not start that campaign until after the 3gpp...
    10-14-2011 09:57 PM
  13. YourMobileGuru's Avatar
    learn something new everyday! i've heard way too much false information about at&t's "4g" sucking the life out of batteries.
    Nah, just wait till you get real 4G (LTE) then you an complain about battery drain ;-)
    10-15-2011 12:08 AM
  14. YourMobileGuru's Avatar
    AT&T does have LTE only in select cities. They are slowly expanding it. Mean while, they try to pass off HPSA+ as 4g as do many other companies such as sprint and T-mobile. AT&T only has 2 phones that are LTE compatible.
    It's 5 cities so far as I understand it and since the GS2 does not support LTE it's moot to this discussion, You can't tun of HSPA + on this phone. I just checked and I cant even see a place to tun off 3G and go to EDGE if you want to (not that anyone would really want to.. EDGE sucks)
    10-15-2011 12:15 AM
  15. shansmi's Avatar
    Battery drain should be similar to today's 4g...
    10-15-2011 06:50 AM
  16. Kevin OQuinn's Avatar
    Until we see LTE built into the SoC (like on Qualcomm's S4 Snapdragons with Krait) battery life will likely be subpar compared to what we see now with HSPA+. It was the same way when 3G first launched.
    10-15-2011 02:56 PM
  17. shansmi's Avatar
    lol.........
    10-15-2011 04:15 PM
  18. Dawgsoverrebs's Avatar
    I'm a manager for an at&t retailer and I just talked to at&t tech support (not just customer service) and they also consulted with Samsung and it appears there is no way to turn off the 3G/4G and use only edge. I'm going to search for some sort of app but I don't have my hopes up.
    10-22-2011 11:23 AM
  19. dirtbikerr450's Avatar
    i have the toggle switch all you need to do is root you phone and get a custom rom. i have cyanogenmod 7 and i have the toggle switch for 2g/3g. its the best
    10-22-2011 01:55 PM
  20. fireshot91's Avatar
    In that menu, you can choose to turn off all-data.


    Mine doesn't have a choice for 4G or 3G or 2G, but it does for internet-connectivity (Packet data).
    10-22-2011 04:05 PM
  21. YourMobileGuru's Avatar
    In that menu, you can choose to turn off all-data.


    Mine doesn't have a choice for 4G or 3G or 2G, but it does for internet-connectivity (Packet data).
    Like dirtbikerr450 said he's running a custom ROM
    10-23-2011 07:02 PM
  22. ImRichBiatch's Avatar
    Yeah, had a slight problem with the battery life on my phone, but ever since I downloaded Juice Defender, my battery life has gotten better.
    10-24-2011 12:26 AM
  23. birvini's Avatar
    I live in the south suburbs of Chicago so I'm in a 4g area. At the end of a 17 hour day I'm usually at 35-40 battery left. My 4g speeds average 1.2mb up and 6-8mb download. At 8mb its very fast.
    10-24-2011 07:54 AM
  24. derande's Avatar
    i finally found an old app i had on my captivate that allowed me to drop from 3g to EDGE if anyone's interested: SamServMode for Android | AppBrain.com

    works on the S2, too, and allows you to change many settings that the regular menu doesn't offer.
    10-24-2011 10:53 AM
  25. fireshot91's Avatar
    Like dirtbikerr450 said he's running a custom ROM
    Yes, I know. I was confirming that.


    And I was saying that in a regular menu, you can choose to turn off ALL data instead of 4G/3G/2G. And I was saying that mine doesn't have the 4G/3G/2G option because I'm not running that custom ROM.
    10-24-2011 03:13 PM
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