Enabling HSDPA & Speed Adjustment? - Android Software Development

I am completely new to the whole Android so forgive me if I am asking stupid questions. I have a G1 running CyanogenMod's latest build. I am also running Android Wireless Tether For Root Users. I am only getting about 1mbps when I should be getting more like 7mbps. Is there a way to ensure that my phone is set up to do HSDPA or maybe it is the setup in the tethering app. I saw something about a netspeed option for the os.

Your not gonna get it if its not in your area.
Its enabled in all roms/stock but i barely get it sometimes but it goes back to 2G.
If your not on the matching carrier i.e.tmo and the freqs are different then you wont get the full speed.Also note the amount of bars your getting.
The 7.2MB is still being rolled out in some areas some people are still stuck with only 2G/Edge.
Netspeed app will test your Speed but i heard that app gives false readings.
HSPDA=3G

Ace42 said:
Your not gonna get it if its not in your area.
Its enabled in all roms/stock but i barely get it sometimes but it goes back to 2G.
If your not on the matching carrier i.e.tmo and the freqs are different then you wont get the full speed.Also note the amount of bars your getting.
The 7.2MB is still being rolled out in some areas some people are still stuck with only 2G/Edge.
Netspeed app will test your Speed but i heard that app gives false readings.
HSPDA=3G
Click to expand...
Click to collapse
The 3G icon is showing. I live in the Cleveland area. What is tmo, is this T-Mob**e, that is the network I am on. The app gives you a choice of 9 channels. Is that the frequency selection? Thanks for helpin out a newbie...

You can try typing the following in the dialer (and scroll down)
*#*#4636#*#*

Related

Is it true? T-Mobile 3g on Xperia?

Ok so I did some reading and the past and I had confirmed that there wasn't 3G bands that supported T-Mobiles 3G on the phone so I had always disabled the 3G. Well recently I got a TM506 and started tethering that to my phone/laptop while on vacation and ran some speed tests getting around 7000kbps | 7.57Mbps | 968.75KB/sec (tested on www.mobilespeedtest.com). Today I was playing with my Xperia again, flashing new roms and deciding to keep it, was frusterated that wifi was slow. Just opened up a browser and noticed it loaded rather quickly... Ran a speed test and it was roughly 7000kbps | 7.57Mbps | 968.75KB/sec which is similar to what I had on my TM506 which is offically a T-Mobile 3G phone.
Can I come to the conclusion I am gettnig 3G on the phone? It seems like it. I ran multiple speedtests and the same speeds are being produced. Can anyone shed some light and help me be able to confirm this fully?
It's pretty obvious if you have a 3G connection, as a little "3G" box appears in the top menu bar (same place there is a "E" box for an EDGE connection).
So your saying if I don't get the "3G" on top but speed tests show differently then it can't be 3G? Doesn't seem to be very accurate to me....
if your using an X1a, then yes you most likely are hooked up to tmobile's 3G..about the 3G icon not showing up..if its a custom rom..i kno in some of this roms the 3G icon is sometimes disabled so you might wanna check in advanced config to see if its enabled or not..
I am on a X1i, with Jacks 3.0 Medium Rom. Just flashed .10 radio as well. 3G is enabled as well. Hope this stays as it might become useful for others that are on T-Mobile as they might be able to get 3G now.
I get very optmistic results from mobilespeedtest.com, try a few other testing sites or even better a large download for real world speeds. If you are getting more than 380 kbit/sec you must have HSDPA and should have the H icon (unless it has been disabled)
Where are you located?
North Dallas, tx. Near frisco. I tested in Denton, Lewisville, The Colony and Frisco. All supposedly 3G speeds.
Neither the X1i or X1a runs on TMO's 3G network as TMO requires two bands for 3G to work.
Are you sure you're not just connected to wifi?
ya. wifi is turned off. And I ran a check with wifi, it gave me roughly 3mb down but with without its 7mb down... could just be the site isn't reliable... i waitng to tether to my laptop to check speedtest.org
If you're using the epc.tmobile.com APN, it's likely the speed test is being accelerated by the gateway, especially if the results are calculated by the website and not the phone.
yeah.. I finally got wifirouter and set it up with my laptop and went to speedtest.net which to me is more accurate and i was only getting ~200kb down. Better than what I had before so I'm actually happier now. Just wished it was the real 3G. :| of well.

Saw the "H" symbol on Android.

I live in Bryan TX, about 75miles from Houston and as far as i know there is no HSDPA in my city yet. But i was just trying the Android build last night and it showed the H symbol for a bit. After that i never saw the H symbol, not in winMo, not in android. So was it just android reporting wrong information or was t-mobile actually testing HSDPA equipment at that time(highly unlikely but i wish they were).
Did anyone else experience android showing H even if you were not in HSDPA location?
bizmark03 said:
I live in Bryan TX, about 75miles from Houston and as far as i know there is no HSDPA in my city yet. But i was just trying the Android build last night and it showed the H symbol for a bit. After that i never saw the H symbol, not in winMo, not in android. So was it just android reporting wrong information or was t-mobile actually testing HSDPA equipment at that time(highly unlikely but i wish they were).
Did anyone else experience android showing H even if you were not in HSDPA location?
Click to expand...
Click to collapse
Your proximity to A&M can cause all sorts of unexplained weirdness
lol seriously though, I understand that not only does Houston itself have HSPA+ now (it was in the first wave, Austin gets it next week), but also a large part of the surrounding area (mostly in your direction, and out towards the gulf too) are getting regular HSDPA very soon.
Note that on a stock winmo ROM you won't see an "H" in your taskbar, even if you have that type of connection...it won't display unless you're using a custom icon set (the default one is suppressed by the carrier)
sirphunkee said:
Your proximity to A&M can cause all sorts of unexplained weirdness
lol seriously though, I understand that not only does Houston itself have HSPA+ now (it was in the first wave, Austin gets it next week), but also a large part of the surrounding area (mostly in your direction, and out towards the gulf too) are getting regular HSDPA very soon.
Note that on a stock winmo ROM you won't see an "H" in your taskbar, even if you have that type of connection...it won't display unless you're using a custom icon set (the default one is suppressed by the carrier)
Click to expand...
Click to collapse
Well....i see your location and i'm not surprised by your answer...and i do study at A&M.....but anyways...thanks for the response, will try installing a set of custom icons and try it out......but considering the speeds i get i dont think its HSDPA+....they dont even touch 1mbps.
bizmark03 said:
Well....i see your location and i'm not surprised by your answer...and i do study at A&M.....but anyways...thanks for the response, will try installing a set of custom icons and try it out......but considering the speeds i get i dont think its HSDPA+....they dont even touch 1mbps.
Click to expand...
Click to collapse
Yeah I'm sure it's not HSDPA+ all the way up to you yet, I think they're just getting the 3G to regular HSDPA standards in the surrounding areas like yours.
Also note that even if you see an "H" in the display there, it only really means that you have a better connection with the tower, the backend elements to give you the real speed increase may or may not be in place TO that tower yet.
(to be honest with you, I couldn't really care less about the UT/A&M rivalry...I'm not from here. I just know I might get run out of town if I missed an opportunity to fire a shot like that lol)
bizmark03 said:
I live in Bryan TX, about 75miles from Houston and as far as i know there is no HSDPA in my city yet. But i was just trying the Android build last night and it showed the H symbol for a bit. After that i never saw the H symbol, not in winMo, not in android. So was it just android reporting wrong information or was t-mobile actually testing HSDPA equipment at that time(highly unlikely but i wish they were).
Did anyone else experience android showing H even if you were not in HSDPA location?
Click to expand...
Click to collapse
Depeding on the Developer of the rom. Sometime they use the "H" just to show there is active data.
For example im in Madison TN and we have 3G but dont have H yet. On my phone though, using the Energy Series rom, my phone idles with a 3G but if I load a web page or trigger some kind of data activity, the 3G will turn to H and back to 3G when the data activity is done. Same with some Android Roms, they change to H for data activity and back to 3G when the phone is idle.
I mite not be 100% accurate on that but I think thats how it works on the custom roms.
On a stock rom instead of 3G idle youll see H all day if you had hsdpa in your area.
hypersonicx said:
Depeding on the Developer of the rom. Sometime they use the "H" just to show there is active data.
For example im in Madison TN and we have 3G but dont have H yet. On my phone though, using the Energy Series rom, my phone idles with a 3G but if I load a web page or trigger some kind of data activity, the 3G will turn to H and back to 3G when the data activity is done. Same with some Android Roms, they change to H for data activity and back to 3G when the phone is idle.
I mite not be 100% accurate on that but I think thats how it works on the custom roms.
On a stock rom instead of 3G idle youll see H all day if you had hsdpa in your area.
Click to expand...
Click to collapse
thanks for the response, I guess you might be right there, but I'm not sure stock ROMs show the H icon, because i was in Houston last week, in the middle of downtown and my phone still showed 3G.
Staying on a similar subject can someone help me out with adding the H icon to the stock ROM, I do not want to add a custom taskbar, just looking for some reg edit, where it will show a simple H icon instead of the 3G icon when i'm in HSPA+ coverage.

Vibrant takes forever to switch between 3g/edge

Ok, first off my Vibrant has flat out awful reception.. fluctuates randomly between 4 bars and 0 bars on 3g and sometimes cant get more than 1 bar 3g in the middle of an HSPA+ city(Memphis). Its not a bar display problem, sometimes my speedtest shows download speeds as low as 150kbps. If that wasnt bad enough it takes forever to switch between 3g and edge, by forever I mean sometimes a full 60 seconds+ and if Im running a data using program (Pandora for instance) it sometimes refuses to switch at all... Is this a known issue or is it just my phone?? I know my G1 did not have these issues.
Try doing a master reset on your device.
If the master reset dosen't work, you might reflash the full stock rom from the android dev section. There's alot of people that have been reporting substantial increases in their reception and connection speeds.
And if you think it takes a long time to switch b/t 3g and edge, you ought to try owning an evo for a month. It takes FOREVA to switch the 4g radio on and off, at least 3 min for me, takes about that long to turn it on after a reset too.
Just because you're in a HSPA+ city doesn't mean you're on the HSPA+ network.
If you're having problems with it aquiring the 3G network try a new sim.
The G1 has mediocre reception but it is aided by the fact that the antenna is at the top and not the bottom like all other phones.
Bump,
I am actually having this problem too, I have tried a factory reset, I also tried reflashing the T-Mobile stock fimware, but it has not helped. I have good 3g and edge reception where I live.
Oh yeah, I am using ATT on the vibrant.
When this happens (ie. not switching between network or slow switch time), you can trigger airplane mode and then undo it and the phone will pick up the right network or switch network faster. For example, if use 2g network is checked, it will enter Edge, etc.
I see exactly what you guys are talking about, locking it on 3G will fix this right up. I was driving down the freeway and I KNOW I was passing 3G towers, but the Vibrant stayed on EDGE for way too long. I locked it on 3G and I never lost the signal and it was 4 bars for nearly all of the trip so I know 3G was there, it just wasn't switching back fast enough.
Looking under the Samsung debug mode, the Vibrant will hold onto 3G until -115 Recieve power, which is basically -115dBm under the Android network menu. Of course over -101 RSCP, it will show 0 bars so it's hard to know when reception is acutally really bad.
It should show -0 bars at -113dBm, 1 bar until -101dBm, 2 bars until -89dBm, 3 bars until -79dBm, and 4 bars until -51dBm.
just disable the extra frequencies from service menu and it will be super quick.
I'll try that, at any rate it should be remedied by Samsung.
mohitmoudgil said:
just disable the extra frequencies from service menu and it will be super quick.
Click to expand...
Click to collapse
Are you talking about locking it to 3g or something else?
ttabbal said:
Are you talking about locking it to 3g or something else?
Click to expand...
Click to collapse
I'm pretty sure hes talking about only having it on 1900/1700 (combi bands)
pyun said:
If the master reset dosen't work, you might reflash the full stock rom from the android dev section. There's alot of people that have been reporting substantial increases in their reception and connection speeds.
And if you think it takes a long time to switch b/t 3g and edge, you ought to try owning an evo for a month. It takes FOREVA to switch the 4g radio on and off, at least 3 min for me, takes about that long to turn it on after a reset too.
Click to expand...
Click to collapse
Does it matter if you flash from nandroid backup or oden?
heygrl said:
I'm pretty sure hes talking about only having it on 1900/1700 (combi bands)
Click to expand...
Click to collapse
That's an unintuitive user interface. sheesh.
Looking at Wikipedia, it looks like TMO uses 1700/2100 WCDMA and 850/1900 GSM (2G/EDGE). There's also a WCDMA 1900, but according to what I'm reading, TMO doesn't use WCDMA signaling on 1900, just GSM/EDGE.
To try it, go to the service menu using the steps for 3G locking and select 1700 only instead of WCDMA ALL. Then go back using menu/back (not the back button) twice and go to Combi Bands and select WCDMA 2100. That should enable just 1700/2100 WCDMA 3G service. Turning on PCS 1900 does seem to get me an EDGE connection. Enabling GSM 850 ONLY gives me emergency calls only, so it might be worth keeping on for 911 calls. 850 goes further so it might have service when the others don't.
I don't get 3G service in my basement, for example, so I would like to keep EDGE enabled. Hopefully enabling just the bands that I would use will help keep the search times down.
JasonCook said:
Does it matter if you flash from nandroid backup or oden?
Click to expand...
Click to collapse
To really get a full re-flash, you need Odin right now. It should be possible to do it without Odin now, but I don't know if anyone has put together a stock ROM that way yet.
I didn't see any difference in speed/stability with the stock Odin flash, but others might have. It seems to depend on the network more than the local stuff.
Band IV 1700 includes 2100Mhz so you don't have to enable it. From what I can tell, no.. combi-bands doesn't do much for the slow 3G requisition. I'm just going to lock it on 3G when I'm not at home.
PaiPiePia said:
When this happens (ie. not switching between network or slow switch time), you can trigger airplane mode and then undo it and the phone will pick up the right network or switch network faster. For example, if use 2g network is checked, it will enter Edge, etc.
Click to expand...
Click to collapse
This didn't work for me. I would do this, and it would only work changing from 3G to EDGE. But, from when I would put it on use 3g, it would first change from airplane mode to EDGE, then take around 1 min to change to 3G.
mohitmoudgil said:
just disable the extra frequencies from service menu and it will be super quick.
Click to expand...
Click to collapse
How do I disable the frequencies? I can only seem to enable them.

No evdo connectivity only 1x

Downgraded to calkulins v1.7 since i was having issues with 1.8 and now i am not getting evdo connectivity at all. My phone only connects to 1x. Ive tried restoring my settings when i do ##3282# edit data profile and evdo. Im not sure what else to do. Ive flashed 3 different roms and nothing helped. What else can i do?
Sent from my PC36100 using XDA App
Go to settings, wireless & networks, mobile networks, mode of operation, and chose evdo only. This fixed my problem, hopefully it will help you.
I have no option to select mode of operation. I am unrooted now and back on bone stock ROM and still have this issue so I am not sure what is wrong. I am currently chatting with sprint to reset anything on their end. However, it still only connects to 1XRTT
try flashing 1.8 back and change the operation mode to hybrid. double check with ##3282# to also make sure the evdo setting is on automatic.
Sent from my PC36100 using Tapatalk
i just fixed this problem myself. go back to calkulin's evio 1.8, and change setting to hybrid. to see if it works, type ##3282# into dialer and choose view mode. go to evdo settings, and make sure its set on automatic. if not, then:
retrieve your msl (free app in market msl reader) and type the same code in, but choose edit mode. type in your msl, and go to evdo settings, and change to auto.
Ahhhh! I don't have this option :/
gohantrunks28 said:
Go to settings, wireless & networks, mobile networks, mode of operation, and chose evdo only. This fixed my problem, hopefully it will help you.
Click to expand...
Click to collapse
Sent from my PC36100 using XDA App
flash back to calkulin's evio 1.8
Changing to EVDO only helps with 1X, but I found out that the setting to EVDO only will not allow incoming text or calls. I had to put it back to Automatic.
I've tried everything everyone has posted so far. Changing to EVDO only and automatic and all that stuff. I took it into the Sprint store today and they tried telling me it was on 3G since the icon was showing that. I told them the evo icon never changes to 1x even when connected to 1x. She still didn't believe me. So I downloaded a few apps that showed my phone only connected to 1x and she downloaded the same app and it showed hers connected to EVDO. She said she couldn't trust the app and then she compared my phone internet load times to hers and mine was actually faster so she still wasn't convinced. I explained that the 3G is on a higher frequency than 1x and being indoors she may have a poor signal compared to mine. Also I told her that everyone in our area is probably connected to EVDO, thus slowing it down, versus just me on 1x, so I had better speeds. She said that is very true, so she ordered me a new Evo that should be here in a few days.
Sportsplayer612 said:
I've tried everything everyone has posted so far. Changing to EVDO only and automatic and all that stuff. I took it into the Sprint store today and they tried telling me it was on 3G since the icon was showing that. I told them the evo icon never changes to 1x even when connected to 1x. She still didn't believe me. So I downloaded a few apps that showed my phone only connected to 1x and she downloaded the same app and it showed hers connected to EVDO. She said she couldn't trust the app and then she compared my phone internet load times to hers and mine was actually faster so she still wasn't convinced. I explained that the 3G is on a higher frequency than 1x and being indoors she may have a poor signal compared to mine. Also I told her that everyone in our area is probably connected to EVDO, thus slowing it down, versus just me on 1x, so I had better speeds. She said that is very true, so she ordered me a new Evo that should be here in a few days.
Click to expand...
Click to collapse
THIS WILL GET YOU 3G
but you will be constantly roaming
try it out and let me know if it works for you.
##775#
search for 00001.prl and change it.
commit changes and it will restart
give it about 10 mins to get connected right and do a speed test.
i was getting only 15-20 kbps using the latest sprint prl.
i changed to this modified prl and im getting 1700-2200 kbps
i think sprints prl's are messed up..
What test can o perform to prove that its versions network I am using after this hack? An iplookup says I'm still connected to sprint.
dtr145r said:
THIS WILL GET YOU 3G
but you will be constantly roaming
try it out and let me know if it works for you.
##775#
search for 00001.prl and change it.
commit changes and it will restart
give it about 10 mins to get connected right and do a speed test.
i was getting only 15-20 kbps using the latest sprint prl.
i changed to this modified prl and im getting 1700-2200 kbps
i think sprints prl's are messed up..
Click to expand...
Click to collapse
Sent from an EVOlution
Bump
Sent from an EVOlution
I'm having the exact same problems. Tried damn near everything at this point. No luck. If you find a solution, please post it.

Poor internet on Telstra Australia

I have had my SGSII for about 6 weeks now. Running it on the Telstra Next G network.
The problem is I am having a shocking internet experience.
My experience is based after coming from the HD2 running Android.
I have had the network freeze a few times. This is identified by the traffic arrows stay stuck. Airplane mode and back resets.
Basically cloud based apps like Market, Maps etc takes ages (60s-5mins) to start up. Kill and re-launch is quick).
Lots of network errors in Google Market.
Lots of Server unreachable errors in Emails (Pointing to exchange 2007)
I have updated the APN details to use Telstra.internet.
Great reception at home and work.
Calls and SMS's are fine.
Ideas? Waiting to see the Cyanogen rom. Wondering if my experience is due to Kies or another program getting involved with internet.
Any ideas please. My HD2 ran with the same Sim and worked like a rocket. No such issues.
Have you tried turning fast dormancy off? I'm on the Optus network, but I found with fast dormancy on I was getting unreliable internet (market would timeout a lot, doing installs/updates would fail straight away, etc). When I turned it off, I got better speeds and the connections were reliable.
Turn fast dormancy off:
1. In dialer - *#9900#
2. Select Disable fast dormancy
no such issues for me, using a vodafone branded handset. The only thing is that it will occassionally use 3telstra instead of telstra, in which case i need to manually select the network. a bit of a pain but not 2 bad
flagger said:
Have you tried turning fast dormancy off? I'm on the Optus network, but I found with fast dormancy on I was getting unreliable internet (market would timeout a lot, doing installs/updates would fail straight away, etc). When I turned it off, I got better speeds and the connections were reliable.
Turn fast dormancy off:
1. In dialer - *#9900#
2. Select Disable fast dormancy
Click to expand...
Click to collapse
Thanks, will try. what does fast dormancy do?
Found this as well
http://forums.whirlpool.net.au/archive/1713536
Looks like it speeds up connection ramp up and down.
Found this on
http://forums.whirlpool.net.au/archive/1714413
****************** FIXED ******************
After contacting Samsung for an insane period of time (ended up on an international call to England i think... or now that i think about it could have just been some English guy in Aus lol) I have got an official explanation and confirmation that this issue is being looked into for KE8 (but it appears that KE8 has been launched in India already so it might be KE9).
*disclaimer*
I am no expert on mobile technology this in-depth however the (probably very) dumbed down version the Samsung guy told me was this;
*end disclaimer*
The problem stems from the fact that this phone has 3 forms of data connection, 3G, HSDPA, and HSPA+.
3G is what we have all had since 3/Telstra launch 10 years ago.
HSDPA is the 7.2mbps connections that we got after that.
HSPA+ is the full fledged 42mbps Next G stuff that only Telstra has.
The problem is, when you are just using the phone as "a phone" it idles on a 3G connection to save battery and when you initiate a data connection it flicks on to the higher connection protocols for better speed.
What is supposed to happen when you initiate the data connection is the phone checks for H+ connection, then for H and then finally 3G. For some reason if you arent with Telstra or are in an area without HSPA+ the phone gets hung up for too long attempting to initiate the H+ connection and refuses to drop back to H!
Also, even if it does give up on H+ it then has an issue with falling back to 3G. Resulting in the problem that if it cant get H+ or the tower is too flooded for a H connection you get absolutely nothing until you restart the data mode within the phone, renegotiates with the tower and BAM, you are back in business.
So... there are 5 fixes;
1. Wait for KE9 (or what ever firmware fixes the modem timings etc)
2. Get a Telstra sim and never leave an area that has H+
3. Turn off/on data mode whenever it happens
to which i told him they were stupid answers and completely unacceptable, but then he came out with this complete gem!
4. using service code *#301279# you can turn off HSPA+ completely forcing it to start the data connections on HSDPA
5. using *#301279# again you can just turn off HSPA+ and HSDPA meaning it instantly starts downloading the data on 3G without delay
Now yes, i thought... great... ive bought this $779 phone that has all the latest and greatest technology and I cant even use it! But, I did some testing!
First of all my normal sim is Vodafone so turning off HSPA+ is an obvious one for me, im never going to get it so why bother. So now that the phone only attempts to get a connection with HSDPA the need to turn off and on data connection was getting more and more rare but still having the problem (i have a feeling that is due to congestion?). So i bumped it down to 3G only and it works perfectly 100% of the time!
The point of these faster connection protocols is speed so i did testing.
Vodafone sim, 4 bars of signal in the middle of a shopping centre.
HPSA+ turned on = 4mbps down, 1mbps up
HSDPA turned on = 4mbps down, 1mbps up
3G only = 3.5mbps down, 1mbps up
did this over and over and over again and to be perfectly honest, im willing to lose 500kbps to make sure that data always works and if you are just doing general web browsing the time it takes to initiate the HSDPA connection wastes more time than the slightly slower speeds with 3G does.
Now obviously this only works fine in my situation, if you are with Telstra and going from HSPA+ down to 3G means going from 20mbps to 3... i would be pissed. But for the rest of the country you are talking about a loss of less than 1mbps so in real world situations with just small amounts of burst data its fine
TLDR; Try and go online and the 3G up arrow lights up but never actually downloads anything
Dial: *#301279# – Change HSPA revision – Release 5 HSPDA only
test, if still a problem
Dial: *#301279# – Change HSPA revision – Release R99 HSPA off
Your welcome, Peace out!
dusty_nz said:
Found this on
http://forums.whirlpool.net.au/archive/1714413
****************** FIXED ******************
After contacting Samsung for an insane period of time (ended up on an international call to England i think... or now that i think about it could have just been some English guy in Aus lol) I have got an official explanation and confirmation that this issue is being looked into for KE8 (but it appears that KE8 has been launched in India already so it might be KE9).
*disclaimer*
I am no expert on mobile technology this in-depth however the (probably very) dumbed down version the Samsung guy told me was this;
*end disclaimer*
The problem stems from the fact that this phone has 3 forms of data connection, 3G, HSDPA, and HSPA+.
3G is what we have all had since 3/Telstra launch 10 years ago.
HSDPA is the 7.2mbps connections that we got after that.
HSPA+ is the full fledged 42mbps Next G stuff that only Telstra has.
The problem is, when you are just using the phone as "a phone" it idles on a 3G connection to save battery and when you initiate a data connection it flicks on to the higher connection protocols for better speed.
What is supposed to happen when you initiate the data connection is the phone checks for H+ connection, then for H and then finally 3G. For some reason if you arent with Telstra or are in an area without HSPA+ the phone gets hung up for too long attempting to initiate the H+ connection and refuses to drop back to H!
Also, even if it does give up on H+ it then has an issue with falling back to 3G. Resulting in the problem that if it cant get H+ or the tower is too flooded for a H connection you get absolutely nothing until you restart the data mode within the phone, renegotiates with the tower and BAM, you are back in business.
So... there are 5 fixes;
1. Wait for KE9 (or what ever firmware fixes the modem timings etc)
2. Get a Telstra sim and never leave an area that has H+
3. Turn off/on data mode whenever it happens
to which i told him they were stupid answers and completely unacceptable, but then he came out with this complete gem!
4. using service code *#301279# you can turn off HSPA+ completely forcing it to start the data connections on HSDPA
5. using *#301279# again you can just turn off HSPA+ and HSDPA meaning it instantly starts downloading the data on 3G without delay
Now yes, i thought... great... ive bought this $779 phone that has all the latest and greatest technology and I cant even use it! But, I did some testing!
First of all my normal sim is Vodafone so turning off HSPA+ is an obvious one for me, im never going to get it so why bother. So now that the phone only attempts to get a connection with HSDPA the need to turn off and on data connection was getting more and more rare but still having the problem (i have a feeling that is due to congestion?). So i bumped it down to 3G only and it works perfectly 100% of the time!
The point of these faster connection protocols is speed so i did testing.
Vodafone sim, 4 bars of signal in the middle of a shopping centre.
HPSA+ turned on = 4mbps down, 1mbps up
HSDPA turned on = 4mbps down, 1mbps up
3G only = 3.5mbps down, 1mbps up
did this over and over and over again and to be perfectly honest, im willing to lose 500kbps to make sure that data always works and if you are just doing general web browsing the time it takes to initiate the HSDPA connection wastes more time than the slightly slower speeds with 3G does.
Now obviously this only works fine in my situation, if you are with Telstra and going from HSPA+ down to 3G means going from 20mbps to 3... i would be pissed. But for the rest of the country you are talking about a loss of less than 1mbps so in real world situations with just small amounts of burst data its fine
TLDR; Try and go online and the 3G up arrow lights up but never actually downloads anything
Dial: *#301279# – Change HSPA revision – Release 5 HSPDA only
test, if still a problem
Dial: *#301279# – Change HSPA revision – Release R99 HSPA off
Your welcome, Peace out!
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THIS IS A GREAT POST (even if it is a repost from whirlpool)!
So many people appear to be having this issue (including myself on O2 UK) where the data connection is stalling.
That code (*#301279#) is a gem.
Whilst I am certainly not happy that Samsung have released this phone with such a massive issue (telling you to wait until KE9 for a fix is really quite terrible!), I would rather have this fix in the meantime whilst waiting for the new firmware.
I have just disabled H/H+ by selecting 'Release 99 HSPA off' and my stalling issues have disappeared. Furthermore, my down speed is still 1.5 Mbps and upload speed is also 1.5 Mbps. I am more than happy with that speed. As the quoted post states, if you want more than this speed, this solution will not be good for you.
Thanks for posting this dusty_nw, this has been bugging me for weeks.
dusty_nz said:
Thanks, will try. what does fast dormancy do?
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http://forum.xda-developers.com/showpost.php?p=14457802&postcount=8
If you have it enabled it will fall from H to 3G in 7 seconds when connection is idle, otherwise in 30 seconds. 7 seconds are to short it will lose time and battery renegotiating to H to often. Ex: when you read your rss feed it will renegtiate higher speed for every article you read, very annoying.
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this should be stickied, fixed my issues i had on optus the connection would continually change from H, and 3g and stall i just disabled all except 3g and now its perfect and very quick great post!
One thing i did on mine with Telstra is change the APN from Telstra.wap to Telstra.internet made the internet feel better. Also got much better upload and download speeds.
Sent from my GT-I9100 using XDA Premium App
May be a sillt question but.
I used the stock dialer and put *#301279# in
Menu popped up.
Used my finger to press "[2] Change HSPA Revision"
Pressed "[2] Release 5"
Goes to menu with two options of which none seem to do anything when pushed.
Went back to strat of menu and selected "[1] Release R99"
Same options and none can be clicked.
So am I not doing this right? Have the changes been made with no signs or message? If they have changed how do I get them back?
I expected the option to change to visually say its "off" or something.
Although no message came up it appears my phone is staying in 3g so maybe it worked... Although I am in low reception visiting the country side so maybe they don't have H or H+ anyway....
If I selected the first option does this restrict data to 3G?
Select 2nd option for H?
or Select 3rd option for H+ or unrestricted?
Is this how its works?
Edit: I have now found it works like I thought. The screen after I click either of the options then shows what is active and is the confirmation in a way. I jumped on the forum a little too quick......
Hi. I've book marked this because I get this issue thanks.
However it is worth noting that difference between 6 and 5 is only hsupa which is upload. So you wouldn't expect change in download speeds changing that going back to 3g of course affects both directions.
tjjensen23 said:
One thing i did on mine with Telstra is change the APN from Telstra.wap to Telstra.internet made the internet feel better. Also got much better upload and download speeds.
Sent from my GT-I9100 using XDA Premium App
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WOW!!!! I just switched over.. mine use to max out at about 8Mbps, but my last test before the swap was 6.7Mbps... switched over and i tested 10Mbps and then 11mpbs!!
gunigugu said:
WOW!!!! I just switched over.. mine use to max out at about 8Mbps, but my last test before the swap was 6.7Mbps... switched over and i tested 10Mbps and then 11mpbs!!
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Telstra.iph works best for me in Perth.
I use a SGS2 (bought in Europe through Expansys) on Telstra since 2 months now, without any issue. I used several firmwares and kernels since then (not to test, just to update: KE7, KG2, KG3), all behaved the same way.
I tried two different APN (telstra.iph and telstra.wap), both gave me the same kind of speeds (quite good, except some times in the middle of the day).
I never found the datas to create the telstra.internet APN (they do not seem to be on ausdroid). Could someone point me to them?
As an aside, I've just finished testing the I9000TDUKF4 modem (yes it works!), if Telstra did actually have tweaks made as they claim, there was no discernible difference on Telstra's NextG using their 'T' version KF4 modem and a stock KG3.
Any changes if any must be on the hardware level or via software set tweaks, the modem really didn't make any difference at all to my download speeds.
For those wanting to replicate the experiment or muck around I've uploaded the Telstra 'T' variant KF4 modem here: http://www.multiupload.com/VKPFYPURD5
asgard said:
As an aside, I've just finished testing the I9000TDUKF4 modem (yes it works!), if Telstra did actually have tweaks made as they claim, there was no discernible difference on Telstra's NextG using their 'T' version KF4 modem and a stock KG3.
Any changes if any must be on the hardware level or via software set tweaks, the modem really didn't make any difference at all to my download speeds.
For those wanting to replicate the experiment or muck around I've uploaded the Telstra 'T' variant KF4 modem here: http://www.multiupload.com/VKPFYPURD5
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Thanks for this, I just stumbled upon this thread, messed about with a few settings and getting much better use out of NEXT G
Cheers

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