Database Develop

3G on T-mobile US!?

Yes, I know there is no 1700mhz AWS on this phone.
Got an HK ver diamond last week. Immediately put my sim in and got an "H" icon. Being my first 3G phone I thought Edge was wacky. Later Icon changed to "E", so I thought Edge was finally working right (although surfing seemed fast at first).
Played with it for a few days, flashed to Duttys latest (had 1.37) and 1.00.25.05 radio.
Today while reading through these forums I realized that the "H" meant HSDPA. I can't possibly imaging how that could have been real 3G.
I bought this phone knowing I would not get 3G on it here.
I Know T-mobile is just going live, but I never should have seen that "H". Maybe because I was just a few miles from T-Mobile headquarters? Maybe they were testing something? A bug in the phone?
Any ideas?

everyone now and again i recieve the H icon, even though im not connected through HSPDA and infact it's only edge, i think its just a bug

odie69 said:
... while reading through these forums I realized that the "H" meant HSDPA. I can't possibly imaging how that could have been real 3G...
Click to expand...
Click to collapse
Amazing but hoping it's real You may want to benchmark the speed and compare with reported: forum.xda-developers.com/showthread.php?t=409147&highlight=3g+speed. Let's know, ok?

http://www.dslreports.com/mspeed?jisok=1

Addicteddddd said:
everyone now and again i recieve the H icon, even though im not connected through HSPDA and infact it's only edge, i think its just a bug
Click to expand...
Click to collapse
I think that pretty much sums it up.
Should it happen again I'll do the speed test.

nah...i think it's just the phone trying to search for signal in every possible band, so it stopped on H for awhile on your phone then go back to EDGE...

Horrible Service with at&t tilt...

For comparison sake I have an old stock razr v3xx and I get FULL service in my room with it.
On my at&t tilt, I get 1-2 bars.
Im running Slueth 3.0 (WM6.1) and I've tried different combinations of HardSPL's and Radios but each one gives me problems that I can not fix. (i.e. - some SPL's have certain bugs where i get a text and it vibrates until i change the ringer to silent, and any other radio than the stock slueth (1.64.08.21 - which I need a link to if anyone can find?) makes my camera not work and I get a black screen.
One thing Ive noticed is on my razr, the band always says 3G. On my tilt, it says "H" - which Ive never seen before. What is "H" - and could this be the reason for poor service?
Again, if anyone knows where I could find Radio 1.64.08.21, and the disable xt9 cab I would greatly appreciate it. (I have searched for both but to no avail for a working link)

H is for hsdpa its just a nother type of service, gprs hsdpa 3g are the main in the US.
No "h" it isn't the problem.
try the ultimate radio thread for the radio you are looking for.

yeah i did, 1.64.08.21 isnt in there
can I force my tilt to choose 3G? My razr picks up 3G with full service yet the tilt uses H with hardly any

I have really awful service too. It loses connection from 3G every 10-30 seconds sometimes, but other times it can sit connected to the 3G.
Sometimes it won't even connect to 3G, then when I soft reset, it connects at 2 bars. Right now it's sitting connected at 3 bars.
What's up with this, and is there any way to improve it? The nearest base station is only 2-3 miles away.

I'd recommend trying out different radios.
Also H stands for HSDPA which is considered to be 3.5g but it actually is 9x faster then 3g.
jay487, search harder.. i found the disable xt9 cab in one search for "xt9". as for the radio your looking for, check out the wiki.

if you change the band to GSM in the band tab in the phone settings the signal will get better if you turn off WCDMA which is 3G or HSDPA, if you don't use 3g for internet then turn it off it will help

yeah I changed the band to GSM out of curiosity and it definitely seems to help so far. I dont use 3G for internet just for picture messaging, this shouldnt be affected correct? I also just did a complete reload of Sleuth to resolve the radio issue.
One problem I still notice on occasion is my sounds will just stop working. If i get a text the sound doesnt play, and if i set it to vibrate when i get a text too sometimes it constantly vibrates until i change the sound to silent and then back. I can fix it with a soft reset but having to do this everyday is anoying.

Do you need a specific program or app to disable 3g or hsdpa? i have the exact same problems, ATT +tilt= bad recep and lots of dropped calls
thanks
tone

3g? 3.5g? Hsdpa??

Hi everyone,
my data plan covers 3G and also HSDPA......im currently using the JF1.51 and when i use the go online with the device, it only shows the 3G logo....... does cupcake only cover up to 3G instead of HSDPA?
if anyone knows, please tell me, thanks alot....
p.s. i tried the Hero rom last month and after setting the APN, it showed "H" instead of "3G".....does it mean that the Hero rom has "unlocked" the HSDPA function?
thanks alot

zgmf-x322a said:
Hi everyone,
my data plan covers 3G and also HSDPA......im currently using the JF1.51 and when i use the go online with the device, it only shows the 3G logo....... does cupcake only cover up to 3G instead of HSDPA?
if anyone knows, please tell me, thanks alot....
p.s. i tried the Hero rom last month and after setting the APN, it showed "H" instead of "3G".....does it mean that the Hero rom has "unlocked" the HSDPA function?
thanks alot
Click to expand...
Click to collapse
The H in Hero is just a custom icon by HTC. All Dreams are capable of HSxPA regardless of whether that icon shows up or not. As for the carrier side, you are most likely on HSDPA. If you are on any T-Mobile network or most Asian networks (Taiwan, Japan, China) they are HSDPA. An easy way to verify is to start a speed test. Any speed higher than 384Kb/s downstream (384Kb/s ~= 48KByte/sec) means you are on HSDPA.
If all that was too complex, just assume you are on HSDPA.

Iconz
I had thesame issue with the Touch Pro on sprint, it only shows the EVDO icon when connecting, however, sprint is even advertising their new 4G network but I have not seen my phone ever go to 3G or above. I thought something was wrong with my phone...
I went to sprint to get it exchanged because I bought the phone for the faster service. I was given a big spill over the offered network on sprint.
Your answer: Basically, some icons are not unlocked in some roms or are not even included depending on your service provider. This being said, you will most likely have to have the custom rom to get this to show up on your phone.
But even if your phone does not show that icon, test it and see if it uses the technology.
- What I did is took my TP to my friend who has the new Iphone 3G and we started the YOUTUBE app and loaded the exact same video. Even though his showed the 3G icon all the time and mine only showed EVDO, my phone brought the video up almost 5 seconds before the Iphone ever did, not to mention the quality of video is so much better.
Ok, I see that I am rambling, I hope that this helps though, however, if I have been informed incorrectly, please someone correct me because I would like the other icons too, just for my aesthetic needs.

jashsu said:
The H in Hero is just a custom icon by HTC. All Dreams are capable of HSxPA regardless of whether that icon shows up or not. As for the carrier side, you are most likely on HSDPA. If you are on any T-Mobile network or most Asian networks (Taiwan, Japan, China) they are HSDPA. An easy way to verify is to start a speed test. Any speed higher than 384Kb/s downstream (384Kb/s ~= 48KByte/sec) means you are on HSDPA.
If all that was too complex, just assume you are on HSDPA.
Click to expand...
Click to collapse
hey there, thanks for the reply mate, at the moment i am in hong kong using the gprs network to go online :S
im not really sure about the last sentence that u wrote haha.....but i am really hoping that i am using the hsdpa.....but the 3G icon in jf1.51......really makes me feel uncomfortable when i see it......i hope u r right mate. once again, thanks

mapaz04 said:
I had thesame issue with the Touch Pro on sprint, it only shows the EVDO icon when connecting, however, sprint is even advertising their new 4G network but I have not seen my phone ever go to 3G or above. I thought something was wrong with my phone...
I went to sprint to get it exchanged because I bought the phone for the faster service. I was given a big spill over the offered network on sprint.
Your answer: Basically, some icons are not unlocked in some roms or are not even included depending on your service provider. This being said, you will most likely have to have the custom rom to get this to show up on your phone.
But even if your phone does not show that icon, test it and see if it uses the technology.
- What I did is took my TP to my friend who has the new Iphone 3G and we started the YOUTUBE app and loaded the exact same video. Even though his showed the 3G icon all the time and mine only showed EVDO, my phone brought the video up almost 5 seconds before the Iphone ever did, not to mention the quality of video is so much better.
Ok, I see that I am rambling, I hope that this helps though, however, if I have been informed incorrectly, please someone correct me because I would like the other icons too, just for my aesthetic needs.
Click to expand...
Click to collapse
thanks for the reply man, u gave me some ideas to what i need to do....
iv just tested out the jac hero (mod version from Nismo)....my gprs connection varies from the "H" icon and the "3G" icon......somehow i assume that it is running in between both speeds?
haha,
once again, gotta thanks to the bro who replied real quick....u r good guys unlike some members in the xda who arent willing to help with simple questions

i got an ev icon
this is kind of in relation to this thread...i was running one of drizzys hero builds and i was in new york one night...this only happens when im in the village..dont know why but anywho...i got an ev icon..im assuming that was for evdo cause i heard the new hero dumps have cdma support..dont know if im very wrong but the icon switched from 3g to ev and when i got on the browser i was impressed...my connection was flaming fast i mean ridiculous ive never seen nething like it...can anyone elaborate

bonkasnucca said:
this is kind of in relation to this thread...i was running one of drizzys hero builds and i was in new york one night...this only happens when im in the village..dont know why but anywho...i got an ev icon..im assuming that was for evdo cause i heard the new hero dumps have cdma support..dont know if im very wrong but the icon switched from 3g to ev and when i got on the browser i was impressed...my connection was flaming fast i mean ridiculous ive never seen nething like it...can anyone elaborate
Click to expand...
Click to collapse
Your rom can't give you cdma support, that is hardware related. And the G1 is only on GSM networks not any CDMA's so you might have seen some other type of icon because it is not possible to get EVDO on any G1.

these were my thought exactly...but i promise and swear to you it said EV not evdo but EV and my connection was faster than ive ever seen before..im going to get that screenshot capture nd next time wen i go to the spot where it happened i will show you...dont know how its possible or what it was..but it was super fast

bonkasnucca said:
these were my thought exactly...but i promise and swear to you it said EV not evdo but EV and my connection was faster than ive ever seen before..im going to get that screenshot capture nd next time wen i go to the spot where it happened i will show you...dont know how its possible or what it was..but it was super fast
Click to expand...
Click to collapse
I aint saying I don't believe you, I just know it is impossible to get CDMA on a G1 no matter what rom or dump. What I would assume is it was HSxPA and the rom you used had a dump from the sprint hero. That could explain why you had a EV icon and is most likely what happened. Like the other guy said his touch pro had a EV icon although it was getting 3G, so since you do have a 3G icon and it switched to EV it is probably because the area you were in had HSxPA.

yea that makes sense but wow was it fast..thanx for the input

HSUPA gets like 7.2mbps so it is like cable almost, I'm not sure about HSDPA but its is pretty quick too.

how would i get this speed on my g1? im on tmobile with the android plan..

roadrunnerx7 said:
how would i get this speed on my g1? im on tmobile with the android plan..
Click to expand...
Click to collapse
Go somewhere that has t-mobile 3g coverage. That is the only way to get the speed you inquired about. If it's not in your area yet, be patient. They are doing alot of expansions to their network. If you live in a rather remote area (ex: somewhere that doesn't have EDGE coverage) don't hold your breath. It's gonna be a while.
crpercodani: HSUPA gets like 7.2mbps so it is like cable almost, I'm not sure about HSDPA but its is pretty quick too.
Click to expand...
Click to collapse
HSDPA and HSUPA are both 3G telephony protocols in the HSPA family. They are two parts of the same thing. HSDPA (Downlink) provides up to 14 Mbit/s. HSUPA (Uplink) provides up to 5.8 Mbit/s.
btw HSPA (or 3g as US carriers call it) is CDMA. Though different from CDMA2000(EV-DO) which is what you were refering to, UMTS is still CDMA based.
And to those confused about the Icons. 3g and HSPA are two names for the same thing. The icon you see simply depends on what the common name for the technology is in the locale the rom was originally designed for. Google based roms usually show 3g whereas HTC based roms sometimes hav H instead. The only difference is the icon.
as for those with EV icons. They are probably from the samsung galaxy system dump. Not to say it's not out there, but I haven't heard anything about a sprint version of the hero rom surfacing yet.

Ohh I guess I didn't have it right. But I know I have seen something about HSxPA gettin 7.2. Damn 14mbits is insane for a cell, I wish I got that in my area. My DSL is only like 7mbits dl and 1.something upload.

Should get it eventually. I only get 7.2 as well, but t-mobile has the whole 1700 band leased, so we might get lucky over the next few years.

Phone signal question

Anyone experience no phone signal after flashing a ROM to your Pure? I got the device two days ago and immediately went to flash it using one of Duttys roms and also from Tess (IV). With both attempts I get no signal bars whatsoever. That being said I get an "H" where the "3G" used to be. I know that some of you have talked about the HSDPA but even though I have been doing this awhile I am stumped as to why I would get no signal bars. As long as HSDPA doesnt result in more charges from my provider I could care less about that. Hope that makes sense and I hope that someone has some information for me!
Thanks!

jbonham said:
Anyone experience no phone signal after flashing a ROM to your Pure? I got the device two days ago and immediately went to flash it using one of Duttys roms and also from Tess (IV). With both attempts I get no signal bars whatsoever. That being said I get an "H" where the "3G" used to be. I know that some of you have talked about the HSDPA but even though I have been doing this awhile I am stumped as to why I would get no signal bars. As long as HSDPA doesnt result in more charges from my provider I could care less about that. Hope that makes sense and I hope that someone has some information for me!
Thanks!
Click to expand...
Click to collapse
Hi, yes, I have seen the situation on some ROMs where I get 'no bars', but the phone seems to be operational anyway. My suspicion is that it's a problem with the root software from Microsoft, not the ROM chef, since it goes across ROMs.
3G vs. H has no bearing on the problem. The H just shows that the phone is connecting via the higher-speed data linkup. Some providers charge more for H, others don't. You'd have to check with yours.

Thanks for the quick reply. Is there a way to figure out if AT&T charges extra for the "H" connection speeds?
Also, are there any roms out there that have figured out a way to slightly increase the size of the virtual keyboard for easier typing? Both roms I have used so far have kept the keyboard the same and not sure if there is actually a way to increase the size. Lastly, I am reading up on roms trying to find one that I would like but one piece of information eludes me. Does the rom I am researching support landscape mode in Start and all other aspects? Right now I get landscape in web browsing, email and that is about it. I may be missing something here but thought I would ask for clarification.
A note about the Tess IV rom is that I really loved it. It was super smooth and very fast unlike the shipped rom from AT&T.
I found the original rom to be bulky and slow in responsiveness when moving between features or applications. I am sure that is why others moved away from it as well.

AT&T does not charge extra if you enable HSDPA. This is my second AT$T WM device and I have enabled "H" on both.

jdwilson said:
AT&T does not charge extra if you enable HSDPA. This is my second AT$T WM device and I have enabled "H" on both.
Click to expand...
Click to collapse
How do you enable "H" or force it on?

The type of signal is dependant on whats available in the area you are in. As far as I know you don't force "H" to come on, your phone just accesses the best available signal you allow. If " is it then.....
My att plan is the basic plan with the $30.00 data (unlimited) that is required when you buy it. No charges for "H" access for me.. good god, with the way I use slacker all the time, that would bankrupt me in a week.. lol

jbonham said:
Anyone experience no phone signal after flashing a ROM to your Pure? I got the device two days ago and immediately went to flash it using one of Duttys roms and also from Tess (IV). With both attempts I get no signal bars whatsoever. That being said I get an "H" where the "3G" used to be. I know that some of you have talked about the HSDPA but even though I have been doing this awhile I am stumped as to why I would get no signal bars. As long as HSDPA doesnt result in more charges from my provider I could care less about that. Hope that makes sense and I hope that someone has some information for me!
Thanks!
Click to expand...
Click to collapse
I'm using the ENERGY Leo ROM, and notice the same.
Thing is that while H is showing I get no bars and no phone connection. Then the phone automatically switches over to 3G and dials out. This can take up to 10 secs - so, can be annoying!
Could this be a locational thing, as I notice this happening in one location only - perhaps where the signal is not strong enough to utilise the H connection.
Or, is it that H is used for data and 3G only for telephone calls?

H is actually HSDPA and is the 3G data connection. 2G equivalent would be EDGE for example. You will only pick it up if A) Your device supports it, B) Your carrier provides it!!, and C) Your are in a stong enough signal area.
You mention that you flashed to a custom ROM but have you flashed your device to an updated Radio ROM? This is the part of the phone that deals with communications including Voice, Data, WiFi etc. Using a good one makes a world of difference.
Check this thread out for all Versions.. http://forum.xda-developers.com/showthread.php?t=547276
Flashing a Radio is the same procedure that you would use for a custom ROM. Of course, many of you may already know all of the above but some people may not!

DirkGently1 said:
H is actually HSDPA and is the 3G data connection. 2G equivalent would be EDGE for example. You will only pick it up if A) Your device supports it, B) Your carrier provides it!!, and C) Your are in a stong enough signal area.
You mention that you flashed to a custom ROM but have you flashed your device to an updated Radio ROM? This is the part of the phone that deals with communications including Voice, Data, WiFi etc. Using a good one makes a world of difference.
Check this thread out for all Versions.. http://forum.xda-developers.com/showthread.php?t=547276
Flashing a Radio is the same procedure that you would use for a custom ROM. Of course, many of you may already know all of the above but some people may not!
Click to expand...
Click to collapse
No, I thought the updated custom ROM would also update the radio.
What is your reccomendation for the radio?
How do I find out radio version I've got?
I dont have any specific useage beyond taking calls, and updating Twitter, weather etc.
What version do you think is best?

alexdpaul said:
No, I thought the updated custom ROM would also update the radio.
What is your reccomendation for the radio?
How do I find out radio version I've got?
I dont have any specific useage beyond taking calls, and updating Twitter, weather etc.
What version do you think is best?
Click to expand...
Click to collapse
Some ROMs do include the radio, such as Dutty's HG 9 & 10 ROMs.
The radio version is usually included in the name of the ROM.
For best radio, it depends on your carrier and location.
To find your current version, soft reset, it is listed at the bottom next to "R" upon booting.

DirkGently1 said:
H is actually HSDPA and is the 3G data connection. 2G equivalent would be EDGE for example. You will only pick it up if A) Your device supports it, B) Your carrier provides it!!, and C) Your are in a stong enough signal area.
You mention that you flashed to a custom ROM but have you flashed your device to an updated Radio ROM? This is the part of the phone that deals with communications including Voice, Data, WiFi etc. Using a good one makes a world of difference.
Check this thread out for all Versions.. http://forum.xda-developers.com/showthread.php?t=547276
Flashing a Radio is the same procedure that you would use for a custom ROM. Of course, many of you may already know all of the above but some people may not!
Click to expand...
Click to collapse
I checked my radio ROM - it was .17.
Just updated the radio to .91 - immediate improvment in access to 3G cellphone signal.
Of course, I need to use it for a couple of days to get an accurate feel for improvement.
BTW. I'm based in the UK.

I've had varying success using different versions but .57 has always been head & shoulders above the rest for me.
As always your mileage may vary

3G --> H Data problems

Hello I seem to have a problem and I am hoping someone can help. My phone is rooted running Modaco r20 Desire Rom. Radio is ERE27. I have a strong 3G signal in my town with T-mobile. My problem is that for some reason whenever I use data (internet,online gaming, searching using apps etc) the icon will stay on 3G then switch over to H. Sometimes it will stay on 3G and it will not allow any data. I know about the EDGE to 3G issues. I don't seen to have that issue. Can anyone help and or know why this happens?

Usually, when browsing the internet or anything is being downloaded at all - the 3G icon will switch to H. Really only in custom ROMs though, I don't really believe this happens in the stock ROM.. it's not a bad thing or a problem, at least not for me.
Data doesn't completely shut off for me though.

The "H" means you are achieving an HSDPA connnection of sorts. Stock does not have this icon in it, since HSDPA is a form of 3G and they didn't want people getting confused by it switching from 3G icon to H icon.
HSDPA is faster than basic UMTS, aka "3G"... so it is not a bad thing at all.
No idea why you loose your data connection all together when it switches, since it isn't doing anything other than recognizing you have a faster data connection than basic 3G, nothing is actually changing to cause you to lose your connection since it is still the same connection.

pjcforpres said:
The "H" means you are achieving an HSDPA connnection of sorts. Stock does not have this icon in it, since HSDPA is a form of 3G and they didn't want people getting confused by it switching from 3G icon to H icon.
HSDPA is faster than basic UMTS, aka "3G"... so it is not a bad thing at all.
No idea why you loose your data connection all together when it switches, since it isn't doing anything other than recognizing you have a faster data connection than basic 3G, nothing is actually changing to cause you to lose your connection since it is still the same connection.
Click to expand...
Click to collapse
no it is not...
mine does the same thing... i have to twiddle my thumbs and wait when it switches between UMTS and HSDPA... they are different frequencies just like EDGE is on a different frequency...

I don't think UMTS and HSPA are on different frequencies, the same two frequencies are used (alternating for downlink/uplink) for both, those are 1700mhz and 2100mhz.
For some reason I don't have this problem on Long Island, but when I'm in the city this happens the whole time. Might be something to do with the way the network is configured. Basically whenever data is in use, it just says 3G, but as soon as I browse to a site or actually use data, it switches to H within a second or so. I think a stock ROM would technically be doing the same thing, but it just won't show the actual switch, as it doesn't differentiate between HSPA and UMTS in the top 'taskbar.' Although it would probably show this in the phone status screen under settings.

luna9698 said:
[SNIP]
Sometimes it will stay on 3G and it will not allow any data.
[SNIP]
Click to expand...
Click to collapse
The "3G" to "H" (and back) is a "red herring". If it's "stuck" on 3G when you're trying to do data, it means your handset is having issues communicating in the AWS bands for 3G (2100/1700) and the handset hasn't dropped back to GSM/GPRS/EDGE (1900) yet or is attempting to switch frequencies and the associated towers aren't cooperating with the hand-off or the hand-off is failing.
Cheers,
Kermee

gsvnet said:
I don't think UMTS and HSPA are on different frequencies, the same two frequencies are used (alternating for downlink/uplink) for both, those are 1700mhz and 2100mhz.
For some reason I don't have this problem on Long Island, but when I'm in the city this happens the whole time. Might be something to do with the way the network is configured. Basically whenever data is in use, it just says 3G, but as soon as I browse to a site or actually use data, it switches to H within a second or so. I think a stock ROM would technically be doing the same thing, but it just won't show the actual switch, as it doesn't differentiate between HSPA and UMTS in the top 'taskbar.' Although it would probably show this in the phone status screen under settings.
Click to expand...
Click to collapse
I'm in times square. My phone has never switch to UMTS. Either HSPA or EDGE.

also while it's idle it will only use 3G
it will switch to H to transfer data, then revert to 3G

Kermee said:
The "3G" to "H" (and back) is a "red herring". If it's "stuck" on 3G when you're trying to do data, it means your handset is having issues communicating in the AWS bands for 3G (2100/1700) and the handset hasn't dropped back to GSM/GPRS/EDGE (1900) yet or is attempting to switch frequencies and the associated towers aren't cooperating with the hand-off or the hand-off is failing.
Cheers,
Kermee
Click to expand...
Click to collapse
Ok now that makes sense. Anything I can do to help with the hand-off?

luna9698 said:
Ok now that makes sense. Anything I can do to help with the hand-off?
Click to expand...
Click to collapse
Not that I've found. I have this problem BAD here in Phoenix. I never even bothered with WiFi until I got a Nexus, now I can't live without it. I found that sometimes kicking the phone in and out of Airplane Mode sometimes alleviates it being "stuck".

luna9698 said:
Ok now that makes sense. Anything I can do to help with the hand-off?
Click to expand...
Click to collapse
Try setting the US BAND only in phone info.

ram130 said:
Try setting the US BAND only in phone info.
Click to expand...
Click to collapse
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.

luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
Which Modaco ROM? If it is Desire, you have to flash the newest radio, and do it after flashing the ROM itself, otherwise you will have major Radio issues... at least that is my, and a fair number of other's, experience.

pjcforpres said:
Which Modaco ROM? If it is Desire, you have to flash the newest radio, and do it after flashing the ROM itself, otherwise you will have major Radio issues... at least that is my, and a fair number of other's, experience.
Click to expand...
Click to collapse
Yeah its Desire rom. I have radio ERE27 right now

Try upgrading to the newest one, 32.26.00.24U_4.04.00.03_2:
http://android.modaco.com/content/g...-online-kitchen-optional-root-insecure-himem/
Make sure you have at least 50% battery before flashing, just download and flash via recovery just like a ROM, do not panic, ever, during the process and do a battery pull, just wait for it to flash, then ask you to reboot, reboot, it will then do the actual radio flashing (you will see a box with arrow screen for a couple minutes) it will reboot on its own into recovery, say "writting" cache with a progress bar for a few seconds. The bar will go away, but the "writting cache" text will not, don't worry it is done, just reboot and then double check it flashed by going to about phone, software, and checking baseband version.
Just remember, can't stress this enough, do not pull your battery at all during this process. And make sure you have at least 50% battery before starting. Flashing a radio is the only way you can brick an N1 right now, and only if you pull the battery during the process, or have a bad download. Speaking of which, I do recommend checking the MD5 sum to make sure it is a good clean download.

luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
*#*#4636#*#* in the dialer but I don't see US Only.

luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
*#*#4636#*#* in the dialer. Hit menu button from there.

luna9698 said:
Hello I seem to have a problem and I am hoping someone can help. My phone is rooted running Modaco r20 Desire Rom. Radio is ERE27. I have a strong 3G signal in my town with T-mobile. My problem is that for some reason whenever I use data (internet,online gaming, searching using apps etc) the icon will stay on 3G then switch over to H. Sometimes it will stay on 3G and it will not allow any data. I know about the EDGE to 3G issues. I don't seen to have that issue. Can anyone help and or know why this happens?
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Same thing happens with me. I'm in Phoenix myself with T-Mobile and running Cyan 5.0.5.3 with EPE54B and baseband v 32.26.00.24U_4.04.00.03_2.
I'll have full bars for 3G and when I goto check the market or anything internet related, the 3G will switch to H and work or stay at 3G and pause with connection error, retry or cancel.
I started having this issue after updating my factory stock radio. Anybody know which one is the stock/default radio IMG is? I'm thinking of downgrading and seeing what happens.

ram130 said:
Try setting the US BAND only in phone info.
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I did this and it worked great! more consistent and quicker data access doesnt take forever to swith to H like before!

scuzzy19 said:
I did this and it worked great! more consistent and quicker data access doesnt take forever to swith to H like before!
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I still can't find the way to set it up using US bands only. Any suggestions?