[Q] Flashing HSPA+ Radio? - Vibrant Q&A, Help & Troubleshooting

Does anyone think or know why or why not we can flash the radio from the G2 to work on the vibrant to get the HSPA+ network connections. or is this a hardware thing? im not a dev but wouldnt mind learing so i can contribute too.

it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.

How would we be able to get hspa working? I think my touch pro2 was on hspa. I always had the H logo in the tool bar.
Sent from my SGH-T959 using XDA App

This same question has passed my mind as well. More often then not I notice in the phone status that the signal is UTMS, on the rare occasion is may say hsdpa. So i wouldn't be surprised if in the radio settings, utms is the preferred signal type.

we already have hspa. hspa+ is what the g2 has. hspa is just 3g...

From past experience with all of my previous smart phones the radio firmware upgrade is hardware specific.....So a Samsung radio will not work with HTC(G2) firmware.

for t-mobile, when you're on HSPA or UMTS, it just uses the 3G logo on the notification bar.
you can check at settings->about phone -> status to see what mobile network type you are on. mine says HSDPA right now, but when i'm at home, it usually says HSPA.
when they update your cell site with the HSPA+ cell, you will probably get an increase in speed because they will probably upgrade the internet connection to the cell to support HSPA+ speeds which means you get up to 7.2Mb/s. I think someone said earlier that most 3G sites only have two T1 lines as the backhaul, meaning you will probably get max 1.5Mb/s in a speed test.

Hardware thing. MIP

HSPA 7.2 is good enough for me and when HSPA+ rolls out in my area I ought to get closer to that theoretical speed more often. I've seen speeds like 5.9 Mbps on Speedtest.net when I'm near a regular HSPA tower.
I do wish we could mod the icon to display an "H" on HSPA connections like the G2 (G2 shows an "H" for regular HSPA as well as HSPA+). I remember running Klick Hero on my G1 almost a year ago, and getting the H icon from time to time on that old thing!
You can confirm you are on HSPA with the Mobile Signal Widget.

Itll show h on 2.2
Sent from my SGH-T959 using XDA App

thenewak said:
Does anyone think or know why or why not we can flash the radio from the G2 to work on the vibrant to get the HSPA+ network connections. or is this a hardware thing? im not a dev but wouldnt mind learing so i can contribute too.
Click to expand...
Click to collapse
The reason you cannot flash the G2 radio to get HSPA+ on the Vibrant is because the Vibrant DOES NOT HAVE A HSPA+ RADIO. Flashing the radio/modem software onto the Vibrant will not help and will probably damage your handset.
Adding software to the phone to use hardware it does not physically have is pointless.

Dan_Brutal said:
How would we be able to get hspa working? I think my touch pro2 was on hspa. I always had the H logo in the tool bar.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
You don't do anything to "get HSPA working", because it already works. If the cell site your handset is connected to is HSPA, then that is what your handset will connect with.
Just because the icon in the notification bar says "3G", this does not mean that you are not connected to a HS(D)PA network. Check "Settings > About phone > Status > Mobile network type" to check which type of network you are connected to. Mine currently says "HSDPA", but I have a "3G" icon in the notification bar.

Does anybody think its possible to take a baseband chip from the Epic 4g, and solder it into the Vibrant to get it to work with Sprint's WiMax network?

Only way I see that happening is of you mod the phones hardware then mod the software drivers to make it work...it can be done but is a huge pain in the butt....I use to mod our sat phones and radios over in iraq to bump signal for direct calls...the hardware side is easy little patch work needed....software side to make it work is where the work would really come in...mod for the kern...then drivers...then fixing all dependency issues for the radio...then last part is the battery issue...you would have to find a radio that wouldn't eat like it was at an all you can eat dollar dinner....but if you are into hardcore mods keep everyone posted...lol
Yea sent from this mobile thinggy =p

kingkurry said:
Does anybody think its possible to take a baseband chip from the Epic 4g, and solder it into the Vibrant to get it to work with Sprint's WiMax network?
Click to expand...
Click to collapse
Not without a ton of programing knowledge.

i would venture to guess no, because more than the baseband chip would probably need to be included. you'd probably some of the receivers as well. At the very least, the chip marked wimax power amplifier.. http://www.chipworks.com/samsung-epic-4g.aspx
why would you want to do that anyways? the phone isn't designed to support two baseband chips so you probably wouldn't have any way of having both tmo and wimax. might as well just buy both phones

yincrash said:
it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.
Click to expand...
Click to collapse
I've gotten up to 6mb/s pretty consistently

yincrash said:
it is a hardware thing. the vibrant can get hspa connections but not hspa+. hspa maxes out at 7.2Mbits/s though, so that's still pretty good.
Click to expand...
Click to collapse
i havent seen any H on mine at all just 3G or EDGE anything i can do to upgrade that performance?

thenewak said:
i havent seen any H on mine at all just 3G or EDGE anything i can do to upgrade that performance?
Click to expand...
Click to collapse
The shipped ROM on the Vibrant does not display an "H" for HS(D)PA connections ever. It will only show "G" for GPRS, "E" for EDGE and "3G" for UMTS, HSDPA and HSPA.

Try phono which shows real time signal. I was able to find the right spot for signal at work.
Sent from my SGH-T959 using XDA App

Related

Best Radio in the USA

I just got the phone and I cannot find the right radio to use in order to get 3g speeds:
. What is the best radio to use in order to get 3g and HSUPA speeds over 300 kbps/sec? I use to have this speed when I got my AT&T 8525 that is ancient now. How do I get the speed I use to have off the 8525 on this phone?
Thank you for your responses in advance.
theonemarcus said:
I just got the phone and I cannot find the right radio to use in order to get 3g speeds:
. What is the best radio to use in order to get 3g and HSUPA speeds over 300 kbps/sec? I use to have this speed when I got my AT&T 8525 that is ancient now. How do I get the speed I use to have off the 8525 on this phone?
Thank you for your responses in advance.
Click to expand...
Click to collapse
I have the same radio and get between 1Mbps and 2.5Mbps when I tether...
theonemarcus said:
I just got the phone and I cannot find the right radio to use in order to get 3g speeds:
. What is the best radio to use in order to get 3g and HSUPA speeds over 300 kbps/sec? I use to have this speed when I got my AT&T 8525 that is ancient now. How do I get the speed I use to have off the 8525 on this phone?
Thank you for your responses in advance.
Click to expand...
Click to collapse
Do you mean HSDPA?
(downlink - tower to phone)
or
HSUPA
(uplink - phone to tower)?
Is your posted speed from the downlink test?
peeps said:
I have the same radio and get between 1Mbps and 2.5Mbps when I tether...
Click to expand...
Click to collapse
well as u see i am new at this. i read a lot from these forums since i love the htc product. but i don't know how to tether or anything like that. i just installed the radio i just displayed hoping to be able to get 3g speed. but it stays at edge at all times.
xboomer55 said:
Do you mean HSDPA?
(downlink - tower to phone)
or
HSUPA
(uplink - phone to tower)?
Is your posted speed from the downlink test?
Click to expand...
Click to collapse
and the site u used to determine my speed i just found off google is a downlink site. and still my speed is slower than edge speeds.
Keep in mind the tower that is servicing your phone can have crap for bandwidth too.
I was near Gretna, VA on a trip and had full bars on 3g. I swear they had a dial-up modem on the other end of the tower though. Google maps were loading up slower than a typical edge connection.
In the end, it may not be your radio that's giving you trouble.
mlacomb said:
Keep in mind the tower that is servicing your phone can have crap for bandwidth too.
I was near Gretna, VA on a trip and had full bars on 3g. I swear they had a dial-up modem on the other end of the tower though. Google maps were loading up slower than a typical edge connection.
In the end, it may not be your radio that's giving you trouble.
Click to expand...
Click to collapse
I tried it through out Atlanta today. Different towers and several areas of metro Atlanta. West Atlanta, North Atlanta, and East Atlanta.
Keep in mind my phone is the htc touch pro. I do not have the brand names from t-mobile or AT&T.
Should I try a different rom or is that a useless effort?
theonemarcus said:
I tried it through out Atlanta today. Different towers and several areas of metro Atlanta. West Atlanta, North Atlanta, and East Atlanta.
Keep in mind my phone is the htc touch pro. I do not have the brand names from t-mobile or AT&T.
Should I try a different rom or is that a useless effort?
Click to expand...
Click to collapse
perhaps 3G is disabled in your phone settings or the manila settings...
peeps said:
perhaps 3G is disabled in your phone settings or the manila settings...
Click to expand...
Click to collapse
You may have a hardware limitation. I noticed on the various Rhodiums that were around and for sale, the unlocked Touch Pro 2's stated they were not ATT 3G compatible, although they were 3G compatible. Apparently there are different implementations of 3G.
You may want to look into whether that is something in the firmware associated with the radio (Radio ROM) or the hardware itself.
Sounds like sprint
If you have the SPRINT service or a SPRINT phone, you do not have the "3G" icon enabled. This is because SPRINT uses the EDGE network and not the 3G network. They say that their network now (REV A) is actually what they consider 3.5G and is supposed to be faster than regular 3G . I have no issues with my phone with the speed, however, if you want the 3G to display, find a custom task bar and that icon will change to the 3G. Once again, SPRINT does not display "3G"
Hope this helps.
peeps said:
perhaps 3G is disabled in your phone settings or the manila settings...
Click to expand...
Click to collapse
the setting show that 3g is enable.
mwcostello said:
You may have a hardware limitation. I noticed on the various Rhodiums that were around and for sale, the unlocked Touch Pro 2's stated they were not ATT 3G compatible, although they were 3G compatible. Apparently there are different implementations of 3G.
You may want to look into whether that is something in the firmware associated with the radio (Radio ROM) or the hardware itself.
Click to expand...
Click to collapse
i looked into the hdw side of things ... it looked like it is compatible according to the specs. i did notice there r some firmware update on htc that was released this yr. i'll have to look into that.
mapaz04 said:
If you have the SPRINT service or a SPRINT phone, you do not have the "3G" icon enabled. This is because SPRINT uses the EDGE network and not the 3G network. They say that their network now (REV A) is actually what they consider 3.5G and is supposed to be faster than regular 3G . I have no issues with my phone with the speed, however, if you want the 3G to display, find a custom task bar and that icon will change to the 3G. Once again, SPRINT does not display "3G"
Hope this helps.
Click to expand...
Click to collapse
i thought of that too. that this rom my not have the 3g icon, but from time to time it will show "G" and then back to "E". and as far as i know ... i shough have close to 300kbs or more for downspeed. and i right?
thanks everyone for all of ur input. i'll look into all of it and get back to u. thx again.
If you have a standard Touch Pro (not Fuze or T-Mobile version), there's a very good chance you accidently picked up European version of it. European version will have European 3G, which is not compatible with US 3G frequency bands. Look into your documentation and see if you phone supports the following:
AT&T uses 850/1900
TMobile uses 1700/2100
European frequency bands are 1800/2100 if I remember correctly.
I have the Fuze and radio 1.14.25.35, and I get 396kB/s with only 2 bars...
Oh, and I'm in Connecticut.
lame!
something has got to be wrong man....i live hours away from 3G and if i even look at my phone wrong i lose reception!
BUT i got 281-392 Kbps!
Have you called your provider?
mlacomb said:
Keep in mind the tower that is servicing your phone can have crap for bandwidth too.
I was near Gretna, VA on a trip and had full bars on 3g. I swear they had a dial-up modem on the other end of the tower though. Google maps were loading up slower than a typical edge connection.
In the end, it may not be your radio that's giving you trouble.
Click to expand...
Click to collapse
hobbbbit said:
If you have a standard Touch Pro (not Fuze or T-Mobile version), there's a very good chance you accidently picked up European version of it. European version will have European 3G, which is not compatible with US 3G frequency bands. Look into your documentation and see if you phone supports the following:
AT&T uses 850/1900
TMobile uses 1700/2100
European frequency bands are 1800/2100 if I remember correctly.
Click to expand...
Click to collapse
That could be true, but the documentation i have states:
Quad-band GSM/GPRS/EDGE:
Europe/Asia: 850/900/1800/1900 MHz
the 850 and 1900 Mhz should not matter if its in europe or in usa, right???
but there is a new updates. i Used IE on the phone and my speed is incredible. i was able to test 3mb and it came back with speeds higher than fast 3g. just like my old phone. but under opera it would not go any faster than 40 kbs. i used another browser called skyfire. and i went to mobilespeedtest and got: . i went to cnet brandwidth test and got 3632.3 kbps. lol. amazing it looks like opera was my problem. hear are all of my results:
opera: (after testing using the other browsers now i get these results)
mobilespeedtest.com
cnet bandwidth test
.6745 mbps
IE:
mobilespeedtest
.408 mbps
Skyfire:
mobilespeedtest.com
cnet bandwidth test
3.2588 mbps
is it me ... or does your phone get warm when u use the net for a long time???
I doubt that the results are valid with a browser like Skyfire. It does all the rendering on the skyfire server instead of on your phone. It's probably reporting the rates in between the test site and the Skyfire server. Skyfire is fast, though; it's much faster at bringing up a full webpage than any other browser. You can open up espn.com in about 5 seconds.
I've always had good luck with my radio [see signature]

Possible to get Vibrant to display H instead of 3G?

I was wondering if there was something I could download, or something from the market that i could download that would make my phone say H instead of 3G? My vibrant is not rooted.
I'm wondering why... but there won't be an app to do that. The G E and 3G icons are held in drawables. So unless you make your own update.zip with replaces drawables, I don't that's going to happen.
teedawgg said:
I was wondering if there was something I could download, or something from the market that i could download that would make my phone say H instead of 3G? My vibrant is not rooted.
Click to expand...
Click to collapse
Why do you want it to display that? The H is generally displayed when you're using HSPA/HSPA+. If you're connected t 3G it will say 3G. If you're connected to Edge, you'll get an E and if you're on the barebones cell network all you get is the number of bars you have.
kelmerp said:
Why do you want it to display that? The H is generally displayed when you're using HSPA/HSPA+. If you're connected t 3G it will say 3G. If you're connected to Edge, you'll get an E and if you're on the barebones cell network all you get is the number of bars you have.
Click to expand...
Click to collapse
I think he wants his phone to be like nexus one is, or other android phones are running custom roms, specifically cyanogen mod. With cm, it will jump from 3g to h icon quite often when data is used, does it to me in my area. I get hspa speeds here, but 3g is the only icon displayed. I like it this way more, the constant jump from 3g to hspa in notifications pane is annoying. Maybe he just wants people to see that his phone is on hspa and not 3g, because the icon doesn't change to that on stock rom.
I remember the first time my g1 said h... Had to call a buddy with a g1 and had to find an i*hone to make jealous...
Its worth bragging about...
Sent from my SGH-T959 using XDA App
afive720 said:
I think he wants his phone to be like nexus one is, or other android phones are running custom roms, specifically cyanogen mod. With cm, it will jump from 3g to h icon quite often when data is used, does it to me in my area. I get hspa speeds here, but 3g is the only icon displayed. I like it this way more, the constant jump from 3g to hspa in notifications pane is annoying. Maybe he just wants people to see that his phone is on hspa and not 3g, because the icon doesn't change to that on stock rom.
Click to expand...
Click to collapse
Not true. I have a stock rom on my Vibrant and it does toggle between 3g and hybrid. It just depends on whether or not you have the new radios broadcasting in your area. Some markets have a lot of hybrid running, while many others have little to none. One of my best friends is an RF tech for T-Mo.
Haha "H" doesn't stand for "Hybrid"
jnp1974 said:
Not true. I have a stock rom on my Vibrant and it does toggle between 3g and hybrid. It just depends on whether or not you have the new radios broadcasting in your area. Some markets have a lot of hybrid running, while many others have little to none. One of my best friends is an RF tech for T-Mo.
Click to expand...
Click to collapse
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gravis86 said:
Haha "H" doesn't stand for "Hybrid"
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Click to expand...
Click to collapse
No ****, Einstein! It stands for HSDPA, but ask any switch tech and he will tell you its hybrid. Right now in many markets, it is a true hybrid mix of HSDPA and 3g and not explicitly one or the other. Do some research before you criticize someone, retard!
Lol I'm cool too, see I'm posting from my vibrant!
Sent from my SGH-T959 using XDA App
I downloaded the user manual to the vibrant (not the one that comes in the box) and it definitely says that there is a 'H' icon. I wonder why they don't have it displayed when actually connected to a HSDPA+ connection?
This is the text next to the 'H' Icons:
Displays when the 3G+ network connection is active.
Displays when your phone is communicating with the
3G+ network.
What does it mean when there's just a G?
3G means 3G
E means EDGE
H means Hybrid/HSPA or whatever. I was out of town last weekend, and noticed that it was just a G.
GPRS, slooooow slooooow data speeds
Sent from my T-Mobile myTouch 3G Slide using XDA App
hurrpancakes said:
What does it mean when there's just a G?
3G means 3G
E means EDGE
H means Hybrid/HSPA or whatever. I was out of town last weekend, and noticed that it was just a G.
Click to expand...
Click to collapse
Grps I think it is called. Basically is faster than edge, but is still slow as ****, nit even close to 3g lol.
Gprs is a step below edge.
Sent from my Galaxy S using the XDA App
I read that our vibrant is not + capable, or just not supported by tmob currently.
Sent from my SGH-T959 using XDA App
I will look for some white icons and make a black bar with the H symbol
They are already in the phone...
Oh I figured they just left them out... I didn't look tho.. And haven't been to any good areas since I changed my bar... So I wouldn't see anything more than 3g...
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jnp1974 said:
Not true. I have a stock rom on my Vibrant and it does toggle between 3g and hybrid. It just depends on whether or not you have the new radios broadcasting in your area. Some markets have a lot of hybrid running, while many others have little to none. One of my best friends is an RF tech for T-Mo.
Click to expand...
Click to collapse
Weird, because I get speeds which are way better than 3g, yet it never goes higher. My nexus with custom rom always displayed h in my area.
Sent from my SGH-T959 using XDA App
Well I got the pre release msguru radio and an h spot not too far from my house... I shall try to see the h today..
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[Q] T-mobile getting 4G

so i just got off the phone with t-mobile, and i was informed that they are getting 4G in a few months. i wonder if its tRu
The g2 has data speeds as quick or quicker than what other providers refer to as 4g. I don't care what you call it though... If it's fast it's fast.
Sent from my Vibrant using the xda-app.
would it make a difference? probably not in may case anyways.. i barely get 3G connections around my area..
I thought they are calling it HSPA+? You can go to t-mobile website to see if you are getting it soon. Unfortunately, they have not announced coverage for me. And the G2 is the only phone that can run HSPA+? So either way vibrant users are out of luck. I've also heard that it's not that much faster than 3G...can't remember where though.
Your TMO rep is an idiot. He said 4G because nobody has heard of HSPA+.
4G is a speed standard not a type of wireless technologe. As long as your speed reachs the stardard you can call it 4G.
jackhuny said:
4G is a speed standard not a type of wireless technologe. As long as your speed reachs the stardard you can call it 4G.
Click to expand...
Click to collapse
Not true at all.
4G = 4th generation = the 4th generation of wireless data technology....
GPRS > EDGE > 3G > 4G/LTE
-bZj
jackhuny said:
4G is a speed standard not a type of wireless technologe. As long as your speed reachs the stardard you can call it 4G.
Click to expand...
Click to collapse
It's the exact opposite of what you said. 4G is a technology standard just as 3G and 2G are.
T-Mobile's HSPA+ network operates on a HSPA (3G) technology.
Where can i see if my city will get hspa+?
gravis86 said:
It's the exact opposite of what you said. 4G is a technology standard just as 3G and 2G are.
T-Mobile's HSPA+ network operates on a HSPA (3G) technology.
Click to expand...
Click to collapse
LTE, WiMax is all branded 4G but I don't think 4G it self is a technology.
HSPA+ is a new technology which is evo from HSPA (3G), but if LTE can call itself 4G why can't HSPA+?
The K-Zoo Kid said:
Where can i see if my city will get hspa+?
Click to expand...
Click to collapse
Goto the T-mobile webite and click "coverage" under "Shop"
Click on "Learn more about HSPA+"
and then
Click on "Check to see if the new network is in your city."
megatherian said:
Goto the T-mobile webite and click "coverage" under "Shop"
Click on "Learn more about HSPA+"
and then
Click on "Check to see if the new network is in your city."
Click to expand...
Click to collapse
YES!! Norfolk VA coming soon!! Now to decide on getting the G2 or waiting on the myTouch HD?? Decisions Decisions..
There are already someone hspa+ towers in our area. Some are in Norfolk and I know of one in great bridge... the great bridge tower was installed less than a year ago. Guess they installed hspa+ on it since its new. I got 5 megs down on that tower with my vibrant.
I say wait for the mytouch hd
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laristech said:
There are already someone hspa+ towers in our area. Some are in Norfolk and I know of one in great bridge... the great bridge tower was installed less than a year ago. Guess they installed hspa+ on it since its new. I got 5 megs down on that tower with my vibrant.
I say wait for the mytouch hd
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Yea that's what I was thinking. I'm hearing about too many problems with the G2. What Great Bridge tower you getting 5 megs out of? I live in Chesapeake and the most I've gotten was between 1.5 and 2.0 megs down in this area.
This totally fits under Vibrant Accessories wtf not to thread bash but wouldn't it be better elsewhere.
If you put [Q] in the subject of your thread do you really think it belongs in Accessories? I mean its not like it matches the sub: Q&A or anything :/
This page will tell you all about the new HSPA+ network.:
http://t-mobile-coverage.t-mobile.com/
If you scroll down youll see a mini map of the US on the left and under it a link that says "Learn more about HSPA+"
when you click it you'll see the area's that have already been upgraded along with the area's that are soon going to be upgraded.
I even attached a picture of the coverage map... I don't understand why people keep talking about this like its a secret/not real....
when a company comes out with something that other companies don't have, or even just something new that other companies do have either way they promote it...
1 look at tmobile.com and most questions are answered. With that much info on this subject this thread and the 50 others about the same thing should be dead... but thats just my opinion :/
MAP: Pink: Upgraded | Blue: Coming Soon
im in the pink.. I know, it sounds bad, but it feels good.
Sent from my SGH-T959 using XDA App
HSPA+ is available limitedly on several phones already out the Vibrant included if you check signal under status u will sometimes see ur connected at those speeds but it will only show 3g the Touch Pro 2 / HD2 / MyTouch Slide and a few other phones will also get the limite HSPA+. The G2 is just the first to the the full HSPA+ and T-Mobile shall be calling it 4g soon.
Not true. We have hspa+ in nashville and I'm getting double the speed on my vibrant vs. 3g. I'm getting 850 kB/s. The g2 will get higher speeds but the vibrant is benefiting from the hspa towers.
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dnob said:
Not true. We have hspa+ in nashville and I'm getting double the speed on my vibrant vs. 3g. I'm getting 850 kB/s. The g2 will get higher speeds but the vibrant is benefiting from the hspa towers.
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Click to expand...
Click to collapse
Most likely the speed increase is NOT from hspa+ but from jobs done on the tower backend that increased the hard line capacity, aka internet bandwidth.

Difference between H and 3G?

I just updated to trigger 2.1 and now my data thing goes between 3G and H. What is H and what's the difference between them?
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http://www.differencebetween.net/technology/difference-between-3g-and-hsdpa/
alecjake said:
I just updated to trigger 2.1 and now my data thing goes between 3G and H. What is H and what's the difference between them?
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Click to expand...
Click to collapse
http://en.wikipedia.org/wiki/Umts - when the icon shows 3G this is what it shows
http://en.wikipedia.org/wiki/HSPDA - when the icon shows H
HSPDA is able to provide faster speeds, but I believe it's highly dependent on how strong your signal is
Not sure myself, but if you're on Tmobile or ATT it pribably stands for HSDPA. 3G would mean WCDMA I believe.
Sent from my Vibrant using XDA App, Bionix-v 1.21
Long story short... it depends on how the ROM has been programmed to display what protocol your phone is using for data traffic.
3G just means regular UMTS 3G data
H means that it is is using HSPA, a faster protocol for UMTS 3G.
It doesn't mean that you're taking advantage of the faster speeds... that is dependent upon a slew of other factors.
Just to clear some things up. 3G is an all encompassing term, that INCLUDES the following technologies:
UMTS
HS(D/U)PA(+)
W-CDMA
EV-DO Rev 0/A/B
LTE
WiMax
As noted in the post immediately above me, the symbol it shows, depends on how the rom was customised to show each icon for the corresponding protocol.
If you don't believe me, that's cool, but go look at the ITU declinations on what is and is not 3g. There is no 4G CDMA technology. Pure CDMA is dead in the long run. All the current 3G GSM technologies, use the WCDMA or OFDMA air interface.
OFDM is not 3G
Tarzanman said:
OFDM is not 3G
Click to expand...
Click to collapse
This is false. WiMax uses OFDM and LTE uses OFDMA (the same, but for multi-user as opposed to single). WiMax as 802.16e is NOT 4g. Neither is anything currently available and anything being deployed in the next 2-3 years.
I didn't say it was 4G. I said that OFDM was not 3G.
It isn't. Taking the broad view, its pretty clear to me that code div mult access is what differentiates 3G from its predecessors.
With 4G it will be orthogonal frequency
Here's a mathematical formula that pertains to all Vibrant ROMS that use an H and/or 3G
3G = H
The answer is, there is no difference except for the way they look. Both are really only using 3g.
The phone switches from hsdpa to umts back and forth all day according to how you use the internet. It automatically switches from hsdpa to umts when it is not browsing the web. That is-- if you live in an area with hsdpa. In which case it would stay on umts all day. Which would make your battery pretty happy. My battery hates hsdpa
Sent from my SGH-T959 using XDA app. If I helped, hit the thanks button!
treyvaporizer said:
The phone switches from hsdpa to umts back and forth all day according to how you use the internet. It automatically switches from hsdpa to umts when it is not browsing the web. That is-- if you live in an area with hsdpa. In which case it would stay on umts all day. Which would make your battery pretty happy. My battery hates hsdpa
Sent from my SGH-T959 using XDA app. If I helped, hit the thanks button!
Click to expand...
Click to collapse
This is false. Your phone jumps on the preferred network. Usually, unless you have specified, it sits on the fastest preferred network available. As such, battery consumption improves when you disable 3g (which is HSPA AND UMTS).
Tarzanman said:
I didn't say it was 4G. I said that OFDM was not 3G.
It isn't. Taking the broad view, its pretty clear to me that code div mult access is what differentiates 3G from its predecessors.
With 4G it will be orthogonal frequency
Click to expand...
Click to collapse
If it's not 3g then what is it? OFDM is used on both current 3g and future 4g (LTE-Advanced) systems.
Paging Dr B said:
Here's a mathematical formula that pertains to all Vibrant ROMS that use an H and/or 3G
3G = H
The answer is, there is no difference except for the way they look. Both are really only using 3g.
Click to expand...
Click to collapse
hi there,
I believe what you say and if it is just a matter in which the ROM is programmed, why does my stupid S3 still switches from H+ to 3g?
I dont know and I cant tell if either of the two is faster than the other, but it is annyoing the constant switching
Thanks
Davide
banzayworld said:
hi there,
I believe what you say and if it is just a matter in which the ROM is programmed, why does my stupid S3 still switches from H+ to 3g?
I dont know and I cant tell if either of the two is faster than the other, but it is annyoing the constant switching
Thanks
Davide
Click to expand...
Click to collapse
H+ = HSPA+ = 3g. There are different names for the different 3g evolutions and technologies, but they are still 3g. It keeps hopping between the networks because you're unfortunately in an area with bad coverage for the faster network.

[Q] Disable HSPA? Leaving HSDPA only?

Hi, I looked for this in all motorola forums but I couldn't find any real solution.
It seems the latest update to my home network (HSDPA to HSPA) is not well received by my phone. My battery is draining really fast since this upgrade.
Is there a way to enable ONLY HSDPA? I mean, HSPA is great for downloading and uploading, but battery life is really poor. I had very good battery life with HSDPA and I'd like to set my phone to this type of data connection.
Somebody told me to look for some entries in build.prop but I didn't find anything. Does someone know how to do it? Thanks
Menu key -> Settings -> Wireless & networks -> Mobile networks -> Select network ?
Check this out for battery improvement: http://forum.xda-developers.com/showthread.php?t=1198333
ofek said:
Menu key -> Settings -> Wireless & networks -> Mobile networks -> Select network ?
Check this out for battery improvement: http://forum.xda-developers.com/showthread.php?t=1198333
Click to expand...
Click to collapse
Hey, thanks for your help. Well, I'm not suffering battery draining for any other reason. I don't want to use 2G networks only. Just want to change HSPA to HSDPA. That way, I'll go back to having the usual battery consumption.
Any other suggestion?
HSPA is a term that encompasses High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA) - if your network was using HSDPA, it was an HSPA network.
Enhanced HSPA (HSPA+) is an enhancement to HSPA that enables download speeds of up to 21Mbps and beyond, up from the typical 7.2Mbps. The Atrix is a 14.4Mbps compatible HSPA+ device.
So you saying you don't want HSPA, but want HSDPA doesn't make any sense. Do you want to disable the increased upload speeds? (HSUPA) or the HSPA+ speed enhancements? (up to 14.4Mbps) I know Samsung have an option to disable certain parts of the network through a hidden network, no idea about the Atrix though.
opethfan3 said:
HSPA is a term that encompasses High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA) - if your network was using HSDPA, it was an HSPA network.
Enhanced HSPA (HSPA+) is an enhancement to HSPA that enables download speeds of up to 21Mbps and beyond, up from the typical 7.2Mbps. The Atrix is a 14.4Mbps compatible HSPA+ device.
So you saying you don't want HSPA, but want HSDPA doesn't make any sense. Do you want to disable the increased upload speeds? (HSUPA) or the HSPA+ speed enhancements? (up to 14.4Mbps) I know Samsung have an option to disable certain parts of the network through a hidden network, no idea about the Atrix though.
Click to expand...
Click to collapse
Yes, I want to disable HSUPA (what makes it HSPA) since it's killing my battery. I found a lot of info on Samsung phones but I don't know how to do it in a Motorola mobile
Sorry to bother again. Any solution yet to prevent phone from going on HSPA and stay in HSDPA? Thanks in advance
Just for your information, I found some build.prop tweaks to set HSDPA only, but none of them worked. Any ideas? Am I doing something wrong?
Thanks
joyo22 said:
Hi, I looked for this in all motorola forums but I couldn't find any real solution.
It seems the latest update to my home network (HSDPA to HSPA) is not well received by my phone. My battery is draining really fast since this upgrade.
Is there a way to enable ONLY HSDPA? I mean, HSPA is great for downloading and uploading, but battery life is really poor. I had very good battery life with HSDPA and I'd like to set my phone to this type of data connection.
Somebody told me to look for some entries in build.prop but I didn't find anything. Does someone know how to do it? Thanks
Click to expand...
Click to collapse
BUMP... Still trying to set phone to HSDPA only... Any thoughts?
it can be done, it took me three weeks to figure this out. we had a flood come through here about three weeks ago and it did something to just one antenna on the tower, i dont know what it did but it prevented anybody using a phone on hsupa from using their internet on their phone, i called att multiple times on the issue with no fixing of the tower that was transmitting a bad hsupa signal, the same antenna was transmitting a good "3g" signal or "hsdpa" both of my 4g phones would work anywhere else in the world except for at my house where the bad hsupa signal was. so i knew i had to find a way to downgrade to hsdpa to get my phones operational again, no help from att as to when or even if they would fix the towers. att thought i was crazy because i was the only one complaining about it because everyone on 3g was unaffected, probably only a handful of houses on this one antenna, att locks you out of your phone from being able to go to 3g or 2g, all automatic. 3 weeks of this crap then one day i remembered when the atrix first came out hsupa was locked out, remember all the scoff att got for that one, so here's what i did to shut off hsupa and get my phone back running again:
1. make sure your bootloader is unlocked - not sure if this will brick your phone if it isn't
2. download these radio packages http://www.megaupload.com/?d=V0LDOGFJ
3. flash the one radio that says att shipping radio or something like that through rsd lite (this is the original radio that shipped with the atrix) and don't worry its safe to flash if you are on gingerbread..
4. reboot your phone and you will be locked into 3g or hsdpa thus locking out hsupa
5. if you want to turn hsupa back on just flash the other file
this method worked great for me and got my phone working great again and no hsupa for me anymore until att gets the tower fixed which may be never since i'm probably the only one on this particular antenna with a hsupa phone.
all we need now is a nifty dev that can hack one of these radios to shut off automatic network selection for those of us that are stuck on it.
voltmeter101 said:
it can be done, it took me three weeks to figure this out. we had a flood come through here about three weeks ago and it did something to just one antenna on the tower, i dont know what it did but it prevented anybody using a phone on hsupa from using their internet on their phone, i called att multiple times on the issue with no fixing of the tower that was transmitting a bad hsupa signal, the same antenna was transmitting a good "3g" signal or "hsdpa" both of my 4g phones would work anywhere else in the world except for at my house where the bad hsupa signal was. so i knew i had to find a way to downgrade to hsdpa to get my phones operational again, no help from att as to when or even if they would fix the towers. att thought i was crazy because i was the only one complaining about it because everyone on 3g was unaffected, probably only a handful of houses on this one antenna, att locks you out of your phone from being able to go to 3g or 2g, all automatic. 3 weeks of this crap then one day i remembered when the atrix first came out hsupa was locked out, remember all the scoff att got for that one, so here's what i did to shut off hsupa and get my phone back running again:
1. make sure your bootloader is unlocked - not sure if this will brick your phone if it isn't
2. download these radio packages http://www.megaupload.com/?d=V0LDOGFJ
3. flash the one radio that says att shipping radio or something like that through rsd lite (this is the original radio that shipped with the atrix) and don't worry its safe to flash if you are on gingerbread..
4. reboot your phone and you will be locked into 3g or hsdpa thus locking out hsupa
5. if you want to turn hsupa back on just flash the other file
this method worked great for me and got my phone working great again and no hsupa for me anymore until att gets the tower fixed which may be never since i'm probably the only one on this particular antenna with a hsupa phone.
all we need now is a nifty dev that can hack one of these radios to shut off automatic network selection for those of us that are stuck on it.
Click to expand...
Click to collapse
Well, thanks a lot. I was able to set phone to HSDPA only by flashing the radio you provided. I can't test if it really decreases battery drain but I'm going to try tomorrow with regular use. Thanks a lot!
opethfan3 said:
HSPA is a term that encompasses High Speed Downlink Packet Access (HSDPA) and High Speed Uplink Packet Access (HSUPA) - if your network was using HSDPA, it was an HSPA network.
Enhanced HSPA (HSPA+) is an enhancement to HSPA that enables download speeds of up to 21Mbps and beyond, up from the typical 7.2Mbps. The Atrix is a 14.4Mbps compatible HSPA+ device.
So you saying you don't want HSPA, but want HSDPA doesn't make any sense. Do you want to disable the increased upload speeds? (HSUPA) or the HSPA+ speed enhancements? (up to 14.4Mbps) I know Samsung have an option to disable certain parts of the network through a hidden network, no idea about the Atrix though.
Click to expand...
Click to collapse
^^This guy gets it.^^
WiredPirate said:
^^This guy gets it.^^
Click to expand...
Click to collapse
I can see why he called it hspa since this is the information displayed by the phone vs when the phone is on hsdpa. or what I call 3.5 g
voltmeter101 said:
I can see why he called it hspa since this is the information displayed by the phone vs when the phone is on hsdpa. or what I call 3.5 g
Click to expand...
Click to collapse
Hey pal, your method worked! After flashing the old radio, the phone is on HSDPA only and battery life is way better, back to Froyo times. I don't really care about the enhanced upload. Download speeds are as good as they were on HSPA.
Thanks a lot.
Can you please upload those radio again? I'm suffering the same thing with my atrix. Thank you.

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