Database Users

3G vs HSDPA

Guys, I just want to confirm that my Ameo really is running on 3.5G (HSDPA). Is there some icon or way to confirm that? I see the 3G icon at the top but bandwidth test returns 1.1 mbps and I expect more from HSDPA. Or does T-Mobile need to set a switch on their end? I have the web-n-walk plan.
Thanks,
Krip

1.1 is HSDPA, not UTMS

When connected to normal 3G network my Dopod U1000 shows a 3G icon, after HSDPA network covered it will show a H icon.

simdao said:
When connected to normal 3G network my Dopod U1000 shows a 3G icon, after HSDPA network covered it will show a H icon.
Click to expand...
Click to collapse
hi, since you can connect to the HSDPA, can you kindly do a test for me for this problem?
http://forum.xda-developers.com/showthread.php?t=302827

Am i on HSDPA....
As soon as you get higher bandwidth than 384 Kbps then you are on HSDPA regardless of what the icon on your phone reads, most networks have the feature enabled to register the "H" icon whebn you are using HSDPA but not all. The message is part of a SIB broadcast and is set as a parameter on the BTS cell that covers you - if this message is not enabled then you will only ever see the "3G" icon
As for speed 1.1 Mbps is about average if you are in a well populated area, the restriction comes mostly from the capacity available in in the BTS site serving you, most operators only have around 2x E1 (approx 4 Mbps) for the entire site so if you have more than 1 user on HSDPA then you will only get around 1 Mbps each - this dynamicaly adjusts if there is more bandwidth available for you to use. To get the higher speeds then you must be in a cell that uses 16QAM modulation (Tytn has this feature) and T-Mobile has this enabled on every site in the network but not all operators do!

normal 3G is 384Kbps download Hsdpa on T-mobile is restricted to their max network speed of 1Mbps but there are rumours of them soon going to 3.8 mbps, but the athena maxes out at 1.8 mbps anyway, so if you want full speed get a USB dongle.

web and walk plus
Im not sure if you are aware but to enable the hsdpa you must be on the "web and walk max" package in the uk.
If you are on the standard W&W package you will not benefit. I have the MAX W&W and can now enjoy the faster hsdpa connection, further more I can get faster speeds using my ameo and wifirouter linked to my laptop than I actualy get via my usb tmobile dongle.
In a nutshell, dont pay extra for the slower hsdpa dongle, not when you can pay £5 extra for the W&WMAX and enjoy wireless connection at a higher speed. I usualy use my laptop with the ameo tucked away inside my suit jacket, and often have people wondering where my dongle is!

hedgemonstahinz said:
Im not sure if you are aware but to enable the hsdpa you must be on the "web and walk max" package in the uk.
If you are on the standard W&W package you will not benefit. I have the MAX W&W and can now enjoy the faster hsdpa connection, further more I can get faster speeds using my ameo and wifirouter linked to my laptop than I actualy get via my usb tmobile dongle.
In a nutshell, dont pay extra for the slower hsdpa dongle, not when you can pay £5 extra for the W&WMAX and enjoy wireless connection at a higher speed. I usualy use my laptop with the ameo tucked away inside my suit jacket, and often have people wondering where my dongle is!
Click to expand...
Click to collapse
Not true, I have both W&W added to my phone account and W&Wmax on a data card and both sims are capable of full 1mbps HSDPA in either device

Restricted network speeds on T-Mobile
ice_coffee said:
normal 3G is 384Kbps download Hsdpa on T-mobile is restricted to their max network speed of 1Mbps but there are rumours of them soon going to 3.8 mbps, but the athena maxes out at 1.8 mbps anyway, so if you want full speed get a USB dongle.
Click to expand...
Click to collapse
Hi there, T-Mobile does not have any restrictions on download speeds apart from your service level (wnw max, plus etc) almost all wnw users can use the maximum speed available to them (apart from the newer users). The network is fully 3.8Mbps already and has been for around 9 months, within the next 8 weeks it will be 9.6Mbps capable (with a new datacard or release 6 mobile device) and within 6 months they should be around 10.7Mbps capable - most of the restrictions that users see (speeds not higher than 1.2Mbps etc) come from lack of capacity in the BTS site or transmission backhaul, the system automaticaly restricts bandwidth per user so that all users can be served at the same time, and it's not often nowadays that you only get 1 data user per BTS site!! not in built up areas......:-D

W'n'W Std = £7.50/month - No HSDPA (except on some older contracts) 1Gb FUP no tethering
W'n'W Plus = £12.50/ Month - HSDPA - speeds vary depending on congestion - Athena limited to 1,8Mb max 3Gb FUP No VOIP tethering allowed
W'n'W Max = £25? / Month As plus but with VOIP
Unless someone wants to correct me that's how I believe it stands (the old W'n'W Pro for £10/month was only available for a few months)
T do not limit speeds but the 1.8/3.6/7.2 etc are maximums which are shared so you are unlikely to ever get 'full' speed.

My 3G vs HSPDA test from San Antonio
I have a AT&T Tilt. Freshly programed with the 6.1 AT&T Rom. Minimal upgrades like color KB etc.. I have a Panasonic CF-74 connected to the PDA via USB. I ran 4 test each using 3G and HSPDA.
Here is what I found. Using the stock Internet Sharing provided on the PDA.
Active Sync 4.5.
Web site used: http://www.speedtest.net
3G test 1 2 3 4
ping 323ms 165 182 167
DL 1.33mb 1.01 1.35 1.10
Up .34 .80 .52 .24
HSPDA test 1 2 3 4
ping 292ms 189 640 113
DL .99mb .85 .72 1.01
Up .06 .31 .02 .41
It seems to me that 3G is faster.
I rebooted both laptop and pda after each test.
I connected to google once before running each test.
I waited 5 minutes after each boot up.
I used Keiser Tweak.
Nothing was syncing

Hmm,
I'm located in Singapore.
For some reason, after my HTC TP2 switch to 3G instead of HSDPA..
The Opera and Youtube speed is sooo much faster as compare with HSDPA.
When I was on HSDPA, the Opera is slow loading and Youtube a few time with reload for buffering.
Where else, on 3G.. the download speed is so much faster.
The first clip of the video start to play.. I can see the progress bar is on the
way to complete the video loading.
This proof 3G is better in Singapore with Starhub connection.
I still wonder
BTW, this is what I change in the Registry.
Locate the following key in the registry:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Internet Settings
On the Edit menu, point to New, click DWORD Value, and then add the following registry values:
Value name: MaxConnectionsPer1_0Server
Value data: 32
Base: Decimal
Value Name: MaxConnectionsPerServer
Value data: 16
Base: Decimal
Exit Registry Editor.
then softreset and do a speed test

hsdpa
I need the help. But there is no such option under "advanced network" on the htc tilt 2(Enable/Disabled hsdpa option).What programs recomended for me
__________________

anyone know i this will work with t-mobile's new HSPA network?

heavyio said:
I have a AT&T Tilt. Freshly programed with the 6.1 AT&T Rom. Minimal upgrades like color KB etc.. I have a Panasonic CF-74 connected to the PDA via USB. I ran 4 test each using 3G and HSPDA.
Here is what I found. Using the stock Internet Sharing provided on the PDA.
Active Sync 4.5.
Web site used: http://www.speedtest.net
3G test 1 2 3 4
ping 323ms 165 182 167
DL 1.33mb 1.01 1.35 1.10
Up .34 .80 .52 .24
HSPDA test 1 2 3 4
ping 292ms 189 640 113
DL .99mb .85 .72 1.01
Up .06 .31 .02 .41
It seems to me that 3G is faster.
I rebooted both laptop and pda after each test.
I connected to google once before running each test.
I waited 5 minutes after each boot up.
I used Keiser Tweak.
Nothing was syncing
Click to expand...
Click to collapse
i used samsung galaxy s wen showing H icon instead of 3g on att usa california, it gave results of 4.1mbps,
i used sonyericsson x10 on att showing 3g icon (it never shows H icon ever though), on att usa california it gave me max speed of 3.97 mbps

heavyio said:
I have a AT&T Tilt. Freshly programed with the 6.1 AT&T Rom. Minimal upgrades like color KB etc.. I have a Panasonic CF-74 connected to the PDA via USB. I ran 4 test each using 3G and HSPDA.
Here is what I found. Using the stock Internet Sharing provided on the PDA.
Active Sync 4.5.
Web site used: http://www.speedtest.net
3G test 1 2 3 4
ping 323ms 165 182 167
DL 1.33mb 1.01 1.35 1.10
Up .34 .80 .52 .24
HSPDA test 1 2 3 4
ping 292ms 189 640 113
DL .99mb .85 .72 1.01
Up .06 .31 .02 .41
It seems to me that 3G is faster.
I rebooted both laptop and pda after each test.
I connected to google once before running each test.
I waited 5 minutes after each boot up.
I used Keiser Tweak.
Nothing was syncing
Click to expand...
Click to collapse
I'm getting similar results with my Samsung Captivate on a customer ROM. 3G seems to produce faster results than HSPDA.

i used this tweak on windowsphone
works great!

a "U" where the "G" used to be

K ya know beside the signal bar it shows a "G" then if you click on it it asks if you want to turn on wireless, well now there is a "U".
Is there someplace that can tell me what all these symbols mean?

Wow.... seriously... where do you live?
The U means that you now are connected to UMTS which gives you the "broadband" access through your provider. Make sure you have unlim data plan. It will start to eat it up when you realize what you get to do with all that bandwidth. Have FUN!!!

well does it eat up data if you "dont" use messenger or web browse? AKA: just use the phone?
I do have a data plan for unlimited text messaging and i use Wifi when i wanna surf.

Quick guide:
Starting with the slowest.
Second Generation:
GSM
GPRS (the G symbol)
EDGE (the E symbol)
Third Generation:
UMTS (the U symbol or depending on localisation, 3G symbol)
HSDPA (the H symbol, if you've got this, then you're in for some fast download speeds)
It all depends on which network you're on and proximity to a tower as to what speed you will actually get.
There are other types, but these are the ones you're more likely to come across using a Hermes.

U Bet
ROTFLMAO.... I thought I had a bug in my ROM after flashing it, even went to the trouble of rolling back.
What a freakin' idiot I am!....

I live in an area where i see U and H fairly often up there.
However, to me it makes little difference, I don't download large files with the device. Web browsing seems mostly unaffected by the connection type.

Having the device in 3G or 3.5G modes does however drain the battery somewhat faster. I saw the difference in my Uni. Can't comment on EDGE as the Uni doesn't have it, I'll be getting my Hermes today so I should be able to comment on that.

It would be logical that the faster connection speeds would drain the battery faster, but I don't know how much faster we're talking about.
However, if battery life is a concern at all for anyone reading this, I would recommend turning off 3G altogether. Why? Web pages are going to render just as fast. Surfing the web is painful on these things regardless of the connection type.

On T-Mobile at least - here is a rough guide for the download speeds for different connection types. These are averages and do change and vary with signal strength. I work for T-Mobile, so these are accurate ^^
GPRS - around 44 kbps
UTMS (3G) - around 386 kbps
HSDPA (3.5G) - up to 1.8 mbps (increasing to 3.6 soon)
If you are on T-Mobile, and in a 3G area, then you will be most likely connected to HSDPA as it covers the whole of their 3G network.
Hope this is of some interest....

Doom Tints said:
if battery life is a concern at all for anyone reading this, I would recommend turning off 3G altogether.
Click to expand...
Click to collapse
But how? AFAIK it's not trivial with my unit: http://forum.xda-developers.com/showthread.php?t=337485.

From your network type, select 'GSM' instead of 'Auto', which I'm sure it is on now. That will do the trick. You might see an 'E' if you service provider offers EDGE, but this won't be an issue, otherwise you will just see the 'G' again.

Thank you. Now I know that in this sense, WCDMA = UMTS = "3G" icon.

Doom Tints said:
From your network type, select 'GSM' instead of 'Auto', which I'm sure it is on now. That will do the trick. You might see an 'E' if you service provider offers EDGE, but this won't be an issue, otherwise you will just see the 'G' again.
Click to expand...
Click to collapse
That looks notoriously like one of my posts earlier in another thread
http://forum.xda-developers.com/showthread.php?t=337485

Yeah. Someone said OH MY I HOW DO I DO THIS IT'S HARD OMG and then pasted a link to your thread, which says clearly how to do it.
A simple cut and paste seemed in order.

Radio Access Technologies
Hmmm...u poor guys..in Austria the speeds are different:
HSDPA : 7,2 MB (yep MegaBits) DL and 1,7 Mbits UL
BTW: HSDPA is not 3.5G its just a bunch of new coding schemes and NodeB software mods :.)

homerjay1981 said:
Hmmm...u poor guys..in Austria the speeds are different:
HSDPA : 7,2 MB (yep MegaBits) DL and 1,7 Mbits UL
BTW: HSDPA is not 3.5G its just a bunch of new coding schemes and NodeB software mods :.)
Click to expand...
Click to collapse
T-Mobile UK will have these speeds by the end of 2008 all going well

Well my phone bill is the same so thats good
Text messages get sent a tiny bit faster, surfing is a bit faster. I dont see what the big deal about the HW upgrade was. oh well

Very slow HSDPA

I am connected to T-Mobile Internet (HSDPA) and I ran a speed test at www.dslreports.com/mspeed but I only got 395kbps, 0.324s latency. Why so slow?

That speedtester is rubbish - I once got 250k on wifi.

arfster said:
That speedtester is rubbish - I once got 250k on wifi.
Click to expand...
Click to collapse
can you recommend a better one?

i've just found out that t-mobile doesn't activate HSDPA unless you call up CS and ask them to enable it. some people have been told that you have to be on web n walk pro to have HSDPA whereas others have had it added free of charge.
http://www.3g.co.uk/3GForum/archive/index.php/t-45508.html

but one thing is still confusing me... the H is displayed at the top of my screen when I use the data connection. and when I click on it it actually says HSDPA. what's going on?

try http://www.thinkbroadband.com/speedtest.html via your laptop. much better and accurate

if you have the H - then you are def on it. If it was just 3G it would say 3G. But bare in mind that T Mobile HSDPA has been dreadful for nearly a month. It gets so bad that I am considering asking them to release me from contract for violating terms of service. I pay for HSDPA as advertised and I dont get it.

I had web&walk previously and I managed to get full speeds for a while. Once I have reduced my call plan(not data) the speeds were down to 300kbps and less. On these occations, I would still see H as the indication but sure they were capping it on the network.

reopening old thread
I've got H and my provider allows speed up to 7.2/2mbps, but for long time (few months) testing I never get speed higher than about 2.4/0.3 Mbps. I've tested on computers via USB cable and on two different locations both about 500m from antenna.
My provider say that I have all set up correctly and doesn't know why speed is 'so slow'.

reopening old thread
I've got H and my provider allows speed up to 7.2/2mbps, but for long time (few months) testing I never get speed higher than about 2.4/0.3 Mbps. I've tested on computers via USB cable and on two different locations both about 500m from antenna.
My provider say that I have all set up correctly and doesn't know why speed is 'so slow'.

Which provider? Mobitel or Si.mobil? I have Mobitel, and it's true, that it isn't always as fast as it should be - in centre of capital city...

My ISP is T2, unlimited for 10€. It's not listed on this forum settings dropdown menu
What max speed do you get with Mobitel provider and HTC HD

feeltch said:
My provider say that I have all set up correctly and doesn't know why speed is 'so slow'.
Click to expand...
Click to collapse
Nearly everywhere 7.2mbit hspa is a myth - the only way you can get it is if nobody else is using the celltower.

A very reliable speed test application is: http:www.mobilespeedtest.com.
The dsl.reports app (on my HD) provides non accurate results.

The more people using a HSDPA or 3G celltower - the slower your speeds get.
Trust me - I've done all the testing from a corporate perspective - HSDPA 7.2 is a myth - you'll never get that speed - its more like 3.2mb/s MAX!. On 3G the average bandwith is about 300kb/s - but only on a good day.
hth

feeltch said:
My ISP is T2, unlimited for 10€. It's not listed on this forum settings dropdown menu
What max speed do you get with Mobitel provider and HTC HD
Click to expand...
Click to collapse
I'll test and report tonight, when I'm on a good HSDPA signal covarage!

yo compatriot , have you manage to test the speed yet?

With www.mobilespeedtest.com it managed to get 3Mbit downstream in Ljubljana-Vič, haven't tried Centre yet. For normal browsing and download of some small files it's ok. I'll report if I get better bandwidth!

With www.mobilespeedtest.com:
- I get a 2.37 Mbps speed test result on the 3 MB file(biggest) while connected from my mobile to a HSDPA 3.6 network which allows for a max 1.1 Mbps speed.
- I get a 2.4 Mbps speed test result from my computer while connected on a 15 Mbps ADSL - yes - I do 1.7 MBytes/sec transfers all the time - careful at the units of measurement!
- on smaller than 3 MBytes file size, the results are just random
www.mobilespeedtest.com is FAKE
The flow of the web pages has been so severely thrashed by ISP filters its not reliable to real testing anymore.
Stop.Calling.Any.Web page.A.Speed.Test.
Ping flood is designed for real measuring a line speed, but most ISPs have scripts which will ban you automatically if you sent packets faster than with a delay of 0.02 seconds. That is because is too much prone to abuse.

Change H to 3G

I did some searching around..but I couldn't really find much on this topic..
I have a custom ROM, I believe it's called Timor.9, and the only thing that bothers me is the H. Is there any way I can just have it say 3G again. I tried installing a cab from the show off your screenshots thread that had the 3G icon, but I'm still stuck with H. Is there something I'm missing?
Thank You

After some messing around in Advanced Config I found it.
It was 'Disable HSDPA Icon' I believe, for reference to others wondering.

Are you just trying to change the icon or are you actually trying to get rid of the HSDPA? HSDPA is definately faster than 3G, that's why you see it in custom ROMs. The chefs activate this hidden feature to improve data transfer speeds.

ftmoe said:
After some messing around in Advanced Config I found it.
It was 'Disable HSDPA Icon' I believe, for reference to others wondering.
Click to expand...
Click to collapse
+1
Thanks
Start > Utilities > Adv. Config > Data Connections > HSDPA icon - Disabled > Soft Reset

I've been wondering about this myself. I flashed The Cell ROM AT&T V1 and now V2 and I noticed the 3G was gone. I had no idea what the H was even for but my signal was great and data transfer was also very good so...just a curiosity

djrinc said:
Are you just trying to change the icon or are you actually trying to get rid of the HSDPA? HSDPA is definately faster than 3G, that's why you see it in custom ROMs. The chefs activate this hidden feature to improve data transfer speeds.
Click to expand...
Click to collapse
Well if I go disable the icon as shown through Advanced Config...will that get rid of that increased speed? And I'm on T-Mobile, is their whole 3G network HSDPA, because it seems unlikely my area would receive the upgrade so soon..

HSDPA = up to 42 Mbit/s on the downlink and 84 Mbit/s on the uplink
3D = up to 14.0 Mbit/s on the downlink and 5.8 Mbit/s on the uplink
Sources:
http://en.wikipedia.org/wiki/HSDPA
http://en.wikipedia.org/wiki/3G

don't be picky - the H tells you the mobile network you have connected to is HSDPA-enabled instead of the slower 3G. I would only start complaining if I was meant to connect to the network on 3G/HSDPA but kept getting an E or G instead

zyphuris55 said:
HSDPA = up to 42 Mbit/s on the downlink and 84 Mbit/s on the uplink
3D = up to 14.0 Mbit/s on the downlink and 5.8 Mbit/s on the uplink
Sources:
http://en.wikipedia.org/wiki/HSDPA
http://en.wikipedia.org/wiki/3G
Click to expand...
Click to collapse
wrong! hsdpa is a subset of 3g. its also called 3.5g on gsm networks and on these phones it only has a max downlink of 7.2mbit. the 3g refers to umts. on gsm it produces less. its legacy on gsm. just like gprs (2g) is legacy to edge ("2.5g" as its dubbed by apple). you will only see an "h" or an "e" because they are they higher speeds at any time. and if youre like att who thinks its better to see hspa as 3g then you can change hklm\software\oem\ril\enablehsdpaicon to 0.

To be really clear here, all you're doing is changing the icon, nothing else. To actually enable and disable HSDPA and/or 3G in the radio requires other changes.
AT&T (and probably lots of other carriers) ship the ROM in such a way that the icon calls "3G" and "HSDPA" the same thing, probably because your average consumer has no clue what either mean, they just want "3G" because they saw it on an ad. AT&T's ROM has HSDPA enabled by default (and why wouldn't 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