[Q] modem not switching back to 3g from H when data inactive - Galaxy S II Q&A, Help & Troubleshooting

Hello just wondering if anyone knows why every modem except LPJ stays on H all the time instead of switching back to 3g when data has finished sending. Even my carriers official modem does this.
I have a gti9100T which likes to run on 850mhz freq. My old sgs1 which didn't have this band used to stay on H all the time. However it makes no sense that only LPJ will behave properly while official T modem won't.
All bands are operational and fast dirmabcy doesn't help.
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Anyone?
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Related

AT&T HSPA (H) and UMTS (3G) coverage.

Hi All,
Ever since I debranded my phone when I first got it, I almost constantly get "H" rather than "3G" in my home. However, lately I have been getting a mixture of H and 3G. Is AT&T "downgrading" their network or something?! Knowing that they are crappy, I would not be surprised if they are actually starting to "cap" or "throttle" the speed of their network in some areas.
Anyone else experience a similar thing?
No they didn't. H comes in when you do something like go on the browser. Otherwise it just says 3g but its really h
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Lion3494 said:
No they didn't. H comes in when you do something like go on the browser. Otherwise it just says 3g but its really h
Sent from my X10i using XDA Premium App
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That's the thing, even when I go on the browser it sometimes stays on 3G.
Afaik they are not throttling their service on the 3g end only when they light up the lte. Mine has been consistently h unless it's idle as someone suggested.
Sent from my Delorean using a flux capacitor!
Sometimes. Not since switching from Rendeiros last rom to his latest. I would reboot then try it again with wat u were doing. That worked for me
Sent from XDA Premium from my X10a rooted running 2.2.1 CM Rom from Rendeiro2005
Yep same here. 3g as I type this, obviously not idle... Been seeing it more lately but not all the time
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Have to Force 3g?

I have this odd issue where I can be in an area that I know has 3g but my phone won't use it unless I set it to wcdma manually. It only says edge unless I change it. It then picks up 3g and works fine, anyone know a solution or reason it does this, it appears agnostic to rom or modem as it has happened in various configurations.
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This is a dumb question, but is the 3G weak in your area?
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Not at all when i do change it over to wcdma is gets full signal usually. I get 2-4 download as well when i change it.

[Q] Firmware Band Selection

Guys,
I am about to received my SGS 2 tomorrow.
I am in Australia on a 850mhz 3g (read not GSM) network (http://en.wikipedia.org/wiki/Next_G)
I know the phone supports this band, but I see some region firmwares floating around and am wondering if ALL firmwares support this band? Or is firmware specific.
Thanks guys.
Im on VR1.1 with everything else stock and next g is cool with me. Preordered from UK so mines from release.
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tjjensen23 said:
Im on VR1.1 with everything else stock and next g is cool with me. Preordered from UK so mines from release.
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Can I ask how you know your on Next G and not just 3g?
You can use non 850mhz Bands with Telstra and get std 3g.
Well im just assuming. But where i live all my family get 1bar with optus/3/voda whereas i get full bars. If u have a way for me to check ill have a look
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tjjensen23 said:
Well im just assuming. But where i live all my family get 1bar with optus/3/voda whereas i get full bars. If u have a way for me to check ill have a look
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not really sure how to check, the best I could figure out is install Network Info II and check network type
Should be HSDPA/UMTS?
I cant seem to find any tool to tell you exact frequency the phone is using.
It is not firmware dependent (If someone buys a Vodaphone branded SGS2 it is still going to work with NextG, but it will probably just be SIM locked). NextG is HSPA noted by the 'H+' symbol. When I was on Three is was just 'H' which is HSPDA.
If you dial *#*#4636#*#* and go phone information -> menu key -> Select Radio Band -> AUS2 Band
AUS2 is NextG 850Mhz, so if you get internet access on that, it is running NextG. The Phone Information section will also tell you your current network protocol also. If it is reporting UMTS then click the 'run ping test' button, it will flick over to HSPA
Hspa when data is being used
Umts when data is inactive
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Micksta said:
It is not firmware dependent, NextG is HSPA noted by the 'H+' symbol. When I was on Three is was just 'H' which is HSPDA.
If you dial *#*#4636#*#* and go phone information -> menu key -> Select Radio Band -> AUS2 Band
AUS2 is NextG 850Mhz, so if you get internet access on that, it is running NextG.
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Yes it shows as H+
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Also just rum some speed tests and you'll know if you're on 3g or HSDPA.
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thanks guys.
Once it has charged I will put SIM in and test all this, very excited as moving from my HTC Desire
Sorry to dig this post up from the grave, but I'm about to move my SGSii to Telstra, as well.
I was wondering if you found benefit to these changes, and if you've changed anything further since.
Have you found any particular ROM/modem to be better (either in reception or battery life) than others.
And, finally, what sort of battery life do you get? I get about 14 hours before I have to plug it in, but I get terrible reception at work (I'm currently on 3), so I'm thinking that might have something to do with it.
Thanks heaps.

Data verry slow after flashing any p500 rom

I have the T-Mobile optimus t running void#forever. No matter where I am, when I use data my 3g icon goes from 3g to H and is very slow. This doesn't happen on any rom made for the optimus t (or p509). This is the best rom I have found and don't want to change it, please help.
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h = hsdpa
hsdpa is faster than 3g
Then why is it slower than 3g.
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I fixed it, but totally forgot about this post. I had to go into the testing menu and change my bands to USA (or automatic). Then I had the speed I was meant to have.
Sent from my very own Galaxy.

[Q] Can i get 3G or 4G on Team perfection ICS

I guys i downloaded team prefection ICS by the way great rom but i was enable to get a 3g or 4g on it. I tried instaling the ICS modem or the other radio but nothing all i get is no network. I am on simple mobile network which is basically t mobile. Thanks guys for the help.
I tried to look for an answer on all the post be could not fine anything
wazer22 said:
I guys i downloaded team prefection ICS by the way great rom but i was enable to get a 3g or 4g on it. I tried instaling the ICS modem or the other radio but nothing all i get is no network. I am on simple mobile network which is basically t mobile. Thanks guys for the help.
I tried to look for an answer on all the post be could not fine anything
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Did you flashed a t mobile modem?
Sent from my SAMSUNG-SGH-I717 using xda premium
I flashed the [MODEM]T-Mobile ICS Modems --> T-mobile Modemsfirst did not work and i tried the enable AWS HSPA+ 3G/4G on SGH-i717 series that you can find on the all in one stock rom/kernel/modem
Methinks you don't have the right modem. Find out what frequency bands your carrier is using.
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they use 1700/2100 AWS band . the T-mobile network
Check your APN settings and make sure they are correct for Simple Mobile. if your rom is a TouchWiz rom, type #2263# (i think) and choose WCDMA, and choose 1700 band. It should force HSPA.
If it's an AOSP based rom, you'll have to dial *#*#4636#*#* and then force 1700 band.
Okay i will try that. thank you
when i was abou to try to force the 1700 band on i ealized that the 4g logo appeared. but the speed is very slow compare to what i got before flashing team perfection ICS. here are some of the speed I got
Those first 3 are edge speeds...
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