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Switching from HSPA to 3G?

So my phone switches back and forth, is this normal, when it does it drops my data connection temporarily. Anyway to stop this?
Sent from my Desire HD using XDA App

I have been doing some research and it seems it is normal for it to switch between the 2 whenever data is being accessed, I found that to be the case whenever I used an app that accessed the internet. Problem is, I seem to only get a good data connection when it says H.

What I find funny is that when my phone is connected to my 3G Microcell (limited to 3.6mbps down) it displays the H+ icon.

[Q] How do I prevent Samsung Galaxy S 4G from connecting to AT&T?

I have Samsung Galaxy S 4G with T-Mobile in San Francisco.
Whenever I go to an area without T-Mobile signal, the phone connects to AT&T. I called T-Mobile and they said that's because T-Mobile has roaming agreement with AT&T so my phone would connect.
The problem is, when my phone connects to AT&T, I can't make any calls. It says the phone's not registered. T-mobile says that's because I'm in an area that has T-Mobile coverage.
You'd think that the phone would be smart enough to figure out that only emergency calls can be made (which is what BlackBerry does and shows SOS sign). The real problem for me is that, I have WiFi calling enabled with cellular preference, and when I'm in the basement of my office building where there is no T-Mobile signal (but there is WiFi signal), my phone thinks it has cellular signal so it doesn't activate WiFi calling, yet no phone calls are coming in b/c it's not registered to AT&T's cellular network.
Is there a way for me to force my phone to only connect to T-Mobile? I know there isn't on the regular settings menu, but perhaps experts could tell me how to do so using those star-sharp keys listed here (http://forum.xda-developers.com/showthread.php?t=842134)?
Thank you!

Set wifi preferred instead of cellular.
Sent from my SGH-T959V using XDA App

Unfortunately, that doesn't work for me because I move around a lot, and Android WiFi calling feature doesn't have handover.
There's got to be a way to prevent this phone from connecting to AT&T at a low level somehow, no?

How do I do that? Have checked the manual but can't find location where explains how to select wi-fi preferred instead of cellular. Your kind advise will be appreciated

Open WiFi Calling and select settings. You'll see Preference. Select Cellular Preferred.

I think in setting then wireless and network, then mobile networks then network operators click the default settings.... select manual and wait for the carrier to pop up.
Will this solve your problem?
Sent from my SGH-T959V using XDA App

scoop_dtx said:
I think in setting then wireless and network, then mobile networks then network operators click the default settings.... select manual and wait for the carrier to pop up.
Will this solve your problem?
Sent from my SGH-T959V using XDA App
Click to expand...
Click to collapse
yep manual is exactly what OP should do.

if the settings for network operators are set to manual then u select the network u want and it sticks unless u manually select a different network provider. u are in select automatically mode so the phone can switch all on its own. this should solve your problem as other people have already mentioned

I have tried this many times and works as long you don't turn the phone off. After I forced the phone to manually select T-Mobile I checked many times the default setting and it remained in manual until the phone was turned off. When I switched it back on it was again in automatic mode and switching to ATT when signal is low.
Is there a way to prevent this? If not, well , first thing when phone is on in the morning is to check default setting.
5/24 I finally gave up and sold the phone. Samsung says they have not received any claims regarding this issue eventhough you see it frequently in the forums. I returned back to my HTC HD2 and will wait for the G2.

Phones switches to 2g during call - (3G) data is disabled

Hi everyone, I'm running Android 2.3.4 (OpenSoju Rom) on my Nexus S,
but the issue i'm going to describe has happened to me on other Roms and
even on my old Nexus One.
When the phone is idle, 3G data works great (also when using apps that
require an internet connection), but when I receive a call,
after a minute or two, the 3G icon disappears from the notification
bar and the phone data connectivity is lost - no connection to the internet.
I've asked around and someone told me it is because the phone switches to
2G network during the call and when in the phone is in 2G mode, during a call
there is no data (on a 2G network).
I know that in the past this behavior did not occur, and in my country
when in 3G during a call - data is enabled!
So does anyone know how to fix/change the setting that causes this behavior?
'cause, for me, sometimes I really need the data connection during a call,
for example, when navigating using Waze (which needs data connectivity),
and receiving a call it causes Waze to stop working and I lose my GPS direction.
Thanks.

Use to work for me too. Then i noticed when AT&T started saying the had talk and web at same time, mysteriously it started doing what is happening to you. And i have Sprint, unless you switch to at&t you might be waiting for awhile.
guys234 said:
Hi everyone, I'm running Android 2.3.4 (OpenSoju Rom) on my Nexus S,
but the issue i'm going to describe has happened to me on other Roms and
even on my old Nexus One.
When the phone is idle, 3G data works great (also when using apps that
require an internet connection), but when I receive a call,
after a minute or two, the 3G icon disappears from the notification
bar and the phone data connectivity is lost - no connection to the internet.
I've asked around and someone told me it is because the phone switches to
2G network during the call and when in the phone is in 2G mode, during a call
there is no data (on a 2G network).
I know that in the past this behavior did not occur, and in my country
when in 3G during a call - data is enabled!
So does anyone know how to fix/change the setting that causes this behavior?
'cause, for me, sometimes I really need the data connection during a call,
for example, when navigating using Waze (which needs data connectivity),
and receiving a call it causes Waze to stop working and I lose my GPS direction.
Thanks.
Click to expand...
Click to collapse
Sent from my Nexus S 4G using XDA App

How to Fix AT&T Data Throttle Your 4G - Your Data Usage is Among The Top 5% Of Users

How to Fix AT&T Data Throttle Your 4G - Your Data Usage is Among The Top 5% Of Users
There is a nice little APN fix. Just change the APN to Phone and force your phone to use HSPA in your phone's settings. I have instructions with a screenshot...
http://www.traemcneely.com/2011/12/...rottle-4g-data-anti-throttling-trick-for-att/

How do you perform the first step on the skyrocket?
1. Go to Settings > Wireless and Network > Mobile Networks > Click Network Mode and force your phone to use GSM/HSPA (Auto mode).
I don't see "network mode".

Click Access Point Name..
I am now getting 512k vs 150k.
Sent from my SAMSUNG-SGH-I727 using Tapatalk

Found another trick.
I named the access point the same ATT pta, then I put Phone under the APN setting.
Put your phone into GSM/HSPA (auto mode) let it connect to the network,
then go back and put it as HSPA only.....I'm getting 1-2g+ bypassing the throttle using HSPA+ works like a charm.

Att Throttle Samsung Skyrocket
i did all when i click on Mobile networks i see access point names and network operators and use packet data. When i click on network operators is says Default setup doesnt allow me to do anything. Please help

Same here. Don't see 'network.mode' selection. Please help. Does it have to be rooted?
Sent from my SAMSUNG-SGH-I727 using XDA App

I understand there are alot of threds pertaing to this throttling issue. I was given a warning text from att about a week ago now when ever i run my speed test i am only getting around 50kbs thats crazy. I live in pittsburgh which is not an LTE area yet am i screwed? or is there a work around for me????????

there is no network mode on a stock rom.. i posted workarounds on another thread which I started but can't find link now on my phone.. check my profile for my posts
Sent from my SAMSUNG-SGH-I727 using xda premium

*#*#4635#*#*

ajdrausal said:
*#*#4635#*#*
Click to expand...
Click to collapse
*#*#4636#*#*
---------- Post added at 11:36 PM ---------- Previous post was at 11:17 PM ----------
I am still not sure where/how to pick "GSM/HSPA (Auto mode)" on stock rom. Thats not an option.
What I have are:
WCDMA preferred - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 3G is favored more.
GSM only - The GSM phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
WCDMA only - The GSM phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM auto (PRL) - The GSM phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more. This one is a bit confusing to me since PRL is associated mostly with CDMA technology and not GSM technology.
CDMA auto (PRL) - The CDMA phone is capable of using both 2G and 3G data communication and when signal strength is low 2G is favored more.
CDMA only - The CDMA phone is capable of using only 2G data communication. When the 2G signal is too low you get nothing at all.
EvDo only - The CDMA phone is capable of using only 3G data communication. When the 3G signal is too low you get nothing at all.
GSM/CDMA auto (PRL) - Some phones are equipped with both GSM and CDMA capabilities. This setting appears to just have the phone attempt to stay connected to the data communication type that works the best. (Maybe the Samsung Galaxy S will take advantage of this???)
Unknown - If none of the above fit or the phone is acting weird as far as connecting to the carrier, you will see your preferred network type is set to this
(Cut n paste from another thread, dont know if these are applicable to Skyrocket/LTE)

http://forum.xda-developers.com/showthread.php?t=1342111

Thanks for the pointer to the thread but my whole point is that I dont see those options and for some reason my network mode changes dont stick.
So if I disable packet network, switch the APN, change the network mode and then enable the network again, I see that it has gone back to GSM?WCDMA/LTE auto mode again.
So for some reason my network mode changes dont stick. Also, I am on stock rom, could that be the reason!

activemind said:
Thanks for the pointer to the thread but my whole point is that I dont see those options and for some reason my network mode changes dont stick.
So if I disable packet network, switch the APN, change the network mode and then enable the network again, I see that it has gone back to GSM?WCDMA/LTE auto mode again.
So for some reason my network mode changes dont stick. Also, I am on stock rom, could that be the reason!
Click to expand...
Click to collapse
Custom ROMS give you the options you are looking for.

I am confused ! If the stock radio is *locked* to use LTE if available, why are some people reporting to lock onto HSPA+ network with stock ROM. Are they exploiting some bug?
I have tried various things but I cant switch my radio to anything except GSM/WCDMA/LTE auto mode. It seems to come back to that mode.
Do I need a reboot after changing the mode.
I am using *#*4636#*#* to switch the mode.

Switching APN 's worked like a charm ;o)

TE TOQUE said:
Switching APN 's worked like a charm ;o)
Click to expand...
Click to collapse
Over a year since last post and you decide to necro for no good reason smh.
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[Q] Motorola Atrix 2 Email truncated issue

I am using Atrix 2 on GIngerbread.
I have corporate email account setup on Microsoft Exchange server.
Problem - my emails automatically gets truncated and shows a message - click here to get full message.
i want to set full email download as my default setting. how can i do that?

I was finding someone from india. I can't solve your problem but I need to share some information if u r using airtel network with 2g speeds. Enable data. Make sure data is enabled as 3g only. When the network symbol shows HSPA, shift to 2g only then it shows G, then the tower signal goes, then switch immediately to 3g, again it shows H. U will b able to get sort of 3g speeds. Around 200-250kbps. That's without a 3g net pack!!. Its only possible with ATRIX 2. Lucky that we have one...
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