Previous 1 21 22 23 24 25 Next 618 Replies Latest reply: Jul 31, 2014 1:59 AM by vinothas22 Go to original post Branched to a new discussion.
  • bennice Level 1 Level 1

    As has been said several times throughout this thread, it would be a non-issue if 3G was reliable and there was adequate bandwidth. 


    There are regular occurrences in which there is 3G signal, but not enough bandwidth to make or receive calls, or send/receive data.  In this situation, the ability to toggle between EDGE and 3G is the only way the device is usable for communication.  The radio will not automatically switch to EDGE when there is a 3G signal even if communication is not possible over 3G. 


    This happens often in the Denver/Boulder/Colorado Springs areas, and I have personally had the same experiences in other metro areas throughout the country with multiple generations of iPhones.

    It may be a non-issue with users in other areas with less network saturation, but it is a very big deal for customers in some areas.

  • vartanarsen Level 1 Level 1

    guys.  there is only 1 final test needed to see if its a chip-issue or iOS.  SBSettings 3G toggle.  Until then, we just need to be patient and stop speculating

  • transmogrification Level 1 Level 1

    One question. Are the APIs used to toggle 3G/2G with the Infineon GSM radio chipset the same as the required APIs needed to toggle GSM 3G/2G on the Qualcomm hybrid radio chipset used by the iPhone 4S?

  • marshmeli Level 1 Level 1

    i am also looking for this feature since upgrading to a 4s last week...


    one situation where this comes in handy for me is I attend a lot of concerts during the year and at a few venues, 3g converage is there but bandwidth is reduced so much while i have bars, i cant even send a text, if i turn off 3g i am able to send texts. this often happens to me at Madison Square Garden in NYC, American Arilines Arean in Miami, and the Greek Theater in Berekely.

  • kvn4000 Level 1 Level 1

    Apple!!!! Pls fix this problem!!! This is important in Malaysia where 3G coverage is not strong. I'm usually getting 1 to 2 bars 3G network, it's slow and consume lots of battery!!!! Most of the time edge is enough for me to receive third party sms and email. We have been told the 4s consume less battery and I guess this is not the truth. Very very upset.

  • laurentiufrompitesti Level 1 Level 1

    Many people said that is not posible for the radio chip, but I think is WRONG, because the chip can switch automaticaly betwen 3g to 2g I think it can be switched from 3g to 2g and  from 2g to 3g and manualy, so I think is just a IOS problem, so the programers can do the toogle button to work for 4S. There are many users unhappy because of this, the 3G signal is not a good choice in many many places.


    Apple, please fix this problem or many 4S people will leave you.

  • deggie Level 9 Level 9

    Just curious, can you elaborate on how much programming experience you have and at what levels?

  • scion59 Level 1 Level 1

    As someone who has no programing experince whatsoever, maybe some of you high tech guy could enlighten and help educate those who struggle to understand.


    Firstly it is my understanding that computer chips or other types don't just do things on their own, they process commands from software and act accordingly... Yes?


    If this is the case with the 4S chip, surely there has to be a command somewhere in the software that tells the chip when there is no 3G signal available then switch to 2G... Yes?


    So if both of the above are true, if a toggle switch were introduced into the software so that when the toggle is activated, it in turn activates the command to switch to 2g and therefore fooling the chip into thinking there is no 3G available.... Simples !!!

  • deggie Level 9 Level 9

    Here is the thing, Qualcomm radio chips in the past which were mainly CDMA in the past have never included access for an app programmer to manually flip the service or adjust threshholds. As this is a hybrid chip it is probable that Qualcomm did not provide any means for a programmer to access the chip to make any manual changes to the state of the chip and it is hard-coded in firmware within the chip as to when the threshhold is reached to make that change. In other words it is a closed system and the programmer has no access to it.

  • scion59 Level 1 Level 1

    Excellent explaination deggie, and I fully accept this but again you have to agree that whether it is apple software programmers or Qualcomm firmware programmers, someone has had to input a command somewhere along the line to tell the chip to switch over. and on that note, if apple users are having problems then that same programmer can undo the threshold command and replace it with a toggle access. afterall firmware updates are available for mostly any hardware... correct?

  • deggie Level 9 Level 9

    Actually they have developed an entire subroutine burned into the chip that determines the signal available and determines when to switch. But notice I said burned into the chip. In order to change this subroutine, or to add a manual feature to it, you would have to burn an entire new chip and install it in your iPhone. So to change this on existing phones Apple would have to have Qualcomm develop the new chip and build all new iPhone 4s to replace the one you have now. I don't see that happening. Maybe with the iPhone 5 but then again that one will probably also be an LTE phone bringing in even more factors.

  • dannywonglh Level 1 Level 1

    Ditto here, I am from Malaysia too and it is a big mistake for me to upgrade from iPhone 4 to iPhone 4S.

  • Jenaq Level 1 Level 1

    We will not roll in iPhone 4S in our organisation because of this issue. We have 2G indoor antennas in our office (very thick walls to outside). Also 3G-network gets over-loaded from time to time because of a stadium nearby so we have to rely on our own 2G-network. I wish Apple would also advertise the new limitations on new models, not only new features...

  • AdnanB Level 1 Level 1

    Guys, an A5 jailbreak release is imminent. Then we'll know for sure if the Qualcomm chip indeed can turn off 3G or not.

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