Manipulating 3G on the Blackjack

The entire premise of this article is to compare power consumption between 3G and EDGE, as well as Wi-Fi and EDGE.  Since we can't do all of the comparisons on the same device given what we have, we had to look at the comparisons independent of each other. 

Toggling 3G on the Samsung Blackjack isn't something that can be done by any visible menu, you have to instead enter into an admin menu by dialing the following code: *#1546792*#.

After entering the code, you're presented with a menu:

Selecting Network & Call Settings let's you configure network priority as well as network mode, the latter being what we're interested in:

Selecting GSM will turn off 3G and if you're in a location where EDGE is available, that's what the Blackjack will default to.  To re-enable 3G simply repeat the process.  We've found that sometimes the Blackjack will need to be rebooted before the switch will take effect. 

With a way of toggling the network mode, it was time to start testing...

Index Faster Browsing, but a Quarter Less Battery Life


View All Comments

  • Tegeril - Friday, July 13, 2007 - link

    No, because EDGE is disabled for data during voice calls and Wifi remains on. Reply
  • mino - Tuesday, July 17, 2007 - link

    Well, explain that to me how was I talking with a friend and browsing DT at the same time with my nokia now ?

    Even the good old GPRS allows for simultanious data/voice scenario, that is actually one of the points of the packet-based technologies.

    If you have standard 4+2 GPRS/EDGE timeslots available you just have the bandwith during call reduced to 3+1 scenario as voice requires 1+1 slots for its operation.

    The other thing is if you have phone bad enough that manufacturer disabled/did not implement this functionality...

    Even my P800 form 2003 coud do that FYI..
  • DavenJ - Friday, July 13, 2007 - link

    No he's right it should say EDGE. Phone calls can only come over the EDGE network and not through Wifi. This is a measure of talk time which would mean a phone call. It would be nice, however, do have VoIP through Wifi for those cases where your either roaming or in a dead spot. Reply
  • michael2k - Saturday, July 14, 2007 - link

    It's not a typo, you misunderstand the test.

    It's talk time with a broadband connection turned on. You can, theoretically, turn wifi off during talk to extend the iPhone life, but for a comparison between 3G and WiFi battery life they were talking with, respectively, 3G and WiFi on.
  • VooDooAddict - Friday, July 13, 2007 - link

    WiFi for voice would be very nice. They could even charge me the same minute fees/bucket. There are plenty of homes with very good wifi coverage but crappy wireless cell coverage... works almost like a signal booster.
  • Ataraxia - Friday, July 13, 2007 - link

    I'm pretty sure you guys are all wrong.

    The iPHone has just enough features so people will go out and buy it in rabid frenzy, while the next iteration (in probably 6 months) containing 3G, Thinner/Lighter, etc will push people like ME to buy it (The educated consumer, who really does know how backwards the innards of an iPhone actually is), plus everyone who bought the first generation will dump theirs for the much faster data transfers and buy a second gen iPhone.

    It's all about business and the $$
  • BigLan - Friday, July 13, 2007 - link

    I wonder if the iphone youtube results are so good because the device buffers the video. It could be that you only download the file once, then play it back from cache. Could you maybe repeat the test with different clips every time to see if this is the case?

    Also, are you saying that youtube clips on iphone/wifi look better than on a desktop?
  • DaveLessnau - Friday, July 13, 2007 - link

    If Apple simply went with a user-replaceable battery, most of this problem (not the space issue) would go away. I'm not in the market for a cell phone, but that one point (the battery) drops the iPhone out of the competition for me. Reply
  • Shintai - Friday, July 13, 2007 - link

    Why would anyone, atleast outside the US mobile network, get an iPhone? Its 3-4 years behind atleast.

    Take a cheaper nokia n95. You get gps, video calls (DVD quality, 30fps), TV, msn, 5Mpixel cam, MMS, 3Mbit internet, longer battery life and so on. On a 3.5G network for less than an iPhone.

    The iPhone is like buying a 800Mhz P3 in a fancy design today. Inferiour products for extreme prices. The last sucker aint born yet.
  • sxr7171 - Monday, July 16, 2007 - link

    N95 is not cheaper buddy. I dropped $750 on mine. Reply

Log in

Don't have an account? Sign up now