Database Info

Best radio rom for T-Mobile USA

What is the best radio rom to T-mobile USA which will eliminate missed and dropped calls and provide better call reception?
2.26.11 T-mbile radio rom
02.19.11 UK w/XDA Cingular WM6 Radio Fix2.cab
Additionally, can you flash either rom after installing TNT 5.0 Touchflo outright?
Can somebody post the roms for each radio listed above on this thread?
Thanks.....

I use 2.69.11. You can flash it after TNT5.0 as the flash only modifies the radio rom.
The installer is on the xda FTP site under /Wizard/Radio_Roms/ as "faria 02.69.11.rar"

radio rom question
technobluff--
You will probably need to experiment to see which radio will offer you the best reception, no-missed-calls, etc.
Yes, you can flash the radio rom of your choice after flashing your PPC with whatever flavor of WM6.
Mfrazzz has all of the radio roms that you asked for here in post #2
http://forum.xda-developers.com/showthread.php?t=324632

2.26 should be best

reynavictor said:
technobluff--
You will probably need to experiment to see which radio will offer you the best reception, no-missed-calls, etc.
Yes, you can flash the radio rom of your choice after flashing your PPC with whatever flavor of WM6.
Mfrazzz has all of the radio roms that you asked for here in post #2
http://forum.xda-developers.com/showthread.php?t=324632
Click to expand...
Click to collapse
Is the Cingular 2.25.11 radio in the above post the same as the US T-Mo 2.25.11? I want to try at that 2.69 radio but want to make sure I can easily get back to my T-Mo 2.25.11 if start having problems with it.

I Did Try 2.69 But It Eating Your Battery Very Fast , 2.6.11 The Best For What I Seen , Been Using It For 6 Months

Anybody has the link to the 2.26 radio rom for tmobile?

cgigate said:
2.26 should be best
Click to expand...
Click to collapse
I would think so too???
Why use the UK 2.19?
so we run the flash for radio, and then the radio fix?
Or other way around.

technobuff said:
Anybody has the link to the 2.26 radio rom for tmobile?
Click to expand...
Click to collapse
it is still on T-mobile web site

OCGuy said:
I use 2.69.11. You can flash it after TNT5.0 as the flash only modifies the radio rom.
The installer is on the xda FTP site under /Wizard/Radio_Roms/ as "faria 02.69.11.rar"
Click to expand...
Click to collapse
Not a bad radio but I experience missed calls and there are no notifications at all letting you know there were calls or messages or voicemail at all.
I reccomend T-Mobile 2.19.11 UK Radio with cingular radio fix 2 patch.

tmobile site
Thats for the entire rom. I was also looking for just the radio rom portion

Anybody running the 2.61 radio rom for Tmobile? What is your experience on missed calls and reception?

technobuff said:
Anybody has the link to the 2.26 radio rom for tmobile?
Click to expand...
Click to collapse
I'm tellin you, you want to use the 2.19.11 UK radio plus the cingular radio fix2. I have tried every radio mentioned in this thread in the pursuit of resolution to the missed call and bad reception problems and finally found it with the 2.19.11 radio.
I have attached the radio and the patch.
You should give it a try.(IMHO)
Instructions:
create new folder and extract both zips to that folder
Run RUU and phone will reboot itself
You now have 2.19.11 UK Radio
Now copy the attached cab to your device and install the cab.
Soft reset and youre good to go.

thank you for the straight up install answer.
I went ahead and did it.
I am soft resetting as we speak
how can I confirm that it worked?
Thnx!!
{EDIT}
settings
system
device information
radio version, 02.19.11

Thanks, Dharvery4561
I am flashing it right now and will report back with results.

FiReBReTHa said:
thank you for the straight up install answer.
I went ahead and did it.
I am soft resetting as we speak
how can I confirm that it worked?
Thnx!!
{EDIT}
settings
system
device information
radio version, 02.19.11
Click to expand...
Click to collapse
You will just notice a considerable spike in your reception where you already had decent reception and also places where you had no service before, you see that you have enough of a signal to make a phone call or send a text.
For example, when I am at home, I always have reception with the original radio, but with the 2.19.11 radio I have full signal in my basement.
When I would go to my girlfriend's friends house out in the middle of nowhere, I had no signal at all with any other radio, but with the 2.19.11 radio, I have 2 bars and can still call and text freely. It's funny because my girlfriend who also has t-mobile has no signal at all on her razr out there... lol

dharvey4651 said:
You will just notice a considerable spike in your reception where you already had decent reception and also places where you had no service before, you see that you have enough of a signal to make a phone call or send a text.
For example, when I am at home, I always have reception with the original radio, but with the 2.19.11 radio I have full signal in my basement.
When I would go to my girlfriend's friends house out in the middle of nowhere, I had no signal at all with any other radio, but with the 2.19.11 radio, I have 2 bars and can still call and text freely. It's funny because my girlfriend who also has t-mobile has no signal at all on her razr out there... lol
Click to expand...
Click to collapse
holy crackpot!
I read your thread.... my eyes went wide and my brain goes, "nooo...."
(grabs phone)
....
instead of 0-1 bars (under central beam in house)
I am at three bars. wow man... I cant wait to see how things go tomorrow!

FiReBReTHa said:
holy crackpot!
I read your thread.... my eyes went wide and my brain goes, "nooo...."
(grabs phone)
....
instead of 0-1 bars (under central beam in house)
I am at three bars. wow man... I cant wait to see how things go tomorrow!
Click to expand...
Click to collapse
no problem. ive been using this radio for months and wouldnt trade it for anything.

nevermind please disregard this post. it was an accidental double post.

so i've been out of the wizard game for a little over a year. I'm using the t-mobile usa mda and have really bad service and would like to try this. so if someone can help me out i would really appreciate it. i take it i have to first upgrade to wm6 for this to work? yes?

Advice sought... my VIII is now GSM only

hi -
the problems: since flashing 2 weeks ago my vario III only works for voice and data in gsm only mode - with 3G enabled i generally can't make or receive a call or connect to data, but the device . Everything works when i switch to GSM only...
The complications/wierdness: straight after flashing a new rom or radio i have sometimes been able to get the device to connect to 3G or make a call - but this usually only last for one session or so.
What i've done: i've installed just about every combination of ROM and Radio i can find - including all of the 6.1 radios with Dutty's 6.1, the "official" vodafone 6.1 rom, alex's, schaps, and i've tried going back to 6.0 roms and the 1.27.12.32 and .11 radios but still the same
what is the verdict? bricked? or am i missing something....
<crosses fingers>

wilbur said:
hi -
the problems: since flashing 2 weeks ago my vario III only works for voice and data in gsm only mode - with 3G enabled i generally can't make or receive a call or connect to data, but the device . Everything works when i switch to GSM only...
The complications/wierdness: straight after flashing a new rom or radio i have sometimes been able to get the device to connect to 3G or make a call - but this usually only last for one session or so.
What i've done: i've installed just about every combination of ROM and Radio i can find - including all of the 6.1 radios with Dutty's 6.1, the "official" vodafone 6.1 rom, alex's, schaps, and i've tried going back to 6.0 roms and the 1.27.12.32 and .11 radios but still the same
what is the verdict? bricked? or am i missing something....
<crosses fingers>
Click to expand...
Click to collapse
I don't think it's bricked.. if it was bricked your device wouldn't even turn on.
Did you hard reset after each flash?
Was it working before your original flash?

answers to both: yes
- working fine before i flashed it
- I've been obeying Dutty's rebooting advice - how could I ignore instruction given in bold AND capitals?

I'm having the same problems. Thinking of putting origional ROM with radio back on and removing hardspl and returning under warrenty but cant find origional splash screen anywhere! Help would be appreciated

had the same problem with my tilt...changed sim card ...different roms ...radios ...basically everthing i could do....but in the end called at&t and they sent me a replacement...goodluck

I had a similiar situation but with my GPS.
The Tilt I bought just 1 month ago was a GPS Champ, always acquired a lock quick. I had flashed XDA-Live v1.5 right over the at&t 1.62 Rom (after HardSPL of course).
Then I used th enew SIM/CID Unlocker (with the hacked Polaris Radio) and of course flashed back to the at&t Radio (from the leaked at&t 1.60 Rom).
Since then I had a coupel of times where the GPS locked-up and required a soft reset.
So yesterday I flashed a WM6.1 Rom and a Niki Radio as I've seen a lot of user report excellent results.
It made my GPS useless. I quickly reflashed XDA Live v1.5 (with the Radio from the at&t 1.60 Rom) but my GPS still seemed lost.
Ironically today is day #29 of the 30 on this Tilt so last night I removed HardSPL and flashed the Official at&t 1.62 Released Rom using the Official exe and everything figuring I'd returnt he unit today.
Wouldn't you know it, I tested the GPS and even on the untouched at&t Rom it was working better than it had ever worked before!
Now I know that the Radio in at&t 1.60, 1.61 & 1.62 are *supposed* to be the exact same but I can say that the over from at&t 1.62 fixed a problem that the 1.60 Rom's radio couldn't. Yes, I do a hard reset after each flash already.
Heck when my daughters return from Disney I'm going to flash the 1.62 version fo the at&t Radio onto my oldest's Kaiser and see if it improved her GPS also.

seems like everyone who replied has a tilt not a VIII. Are you sure your settings are correct for your network? that would be my first guess at this point input them manually and dont use the connection wizard app as sometimes it doesnt work right. also check your phone settings make sure its set to AUTO or UTMS only if all else falls force it into 3G mode using the Band settings post your results back please

martyotaku said:
had the same problem with my tilt...changed sim card ...different roms ...radios ...basically everthing i could do....but in the end called at&t and they sent me a replacement...goodluck
Click to expand...
Click to collapse
hey I am having a similar problem at my house when i first got my tilt i have a very strong 3G signal here. That tilt messed up sent it in and this new one that i got worked just fine till i flashed a new rom on it now it wont pick up 3G unless i go somewhere else and come back to my apt. And yes i HardSPL'ed it and hard reset after flashing. I even went back to stock tilt rom and that didn't work. I have tried all the radio's on this forum from stock to the new imported NIKI radio's nothing has brought it back. When I go get the 3G signal elsewhere and comeback god forbid i have to soft reset because there goes 3G out the window and locked to edge. Should i return to AT&T for an exchange or is there a fix i'm not finding?

austinsnyc said:
seems like everyone who replied has a tilt not a VIII. Are you sure your settings are correct for your network? that would be my first guess at this point input them manually and dont use the connection wizard app as sometimes it doesnt work right. also check your phone settings make sure its set to AUTO or UTMS only if all else falls force it into 3G mode using the Band settings post your results back please
Click to expand...
Click to collapse
The Tilt Roms by default don't allow manual band selection.
Bad Data settings wouldn't cause poor reception just inability to connect (regardless of 3G or Edge/Gprs) for data sessions.
Based on my experience I would say first test is to do the work and reset your phone to the latest shipped Carrier Rom for your Carrier and see if your problems persist.
When I was having my GPS issues I also had a few wierd Call issues like calls not disconnecting (I had to toggle the phone radio to actually end the call).

wilbur said:
hi -
the problems: since flashing 2 weeks ago my vario III only works for voice and data in gsm only mode - with 3G enabled i generally can't make or receive a call or connect to data, but the device . Everything works when i switch to GSM only...
<crosses fingers>
Click to expand...
Click to collapse
I had the same issue with a t-mobile(UK) viii. The issue appeared after a while using the phone before I'd got into flashing different ROMS. In the end, i had the unit swapped out and the problems went away and have not returned. You can assume its a hardware issue. I went through the is it your SIM, is it this... is it that... after explaining that basically i was right next to a 3G transceiver in a big city.
Like I mentioned, this was a fault which developed after two months of no issues.
Old hardware version (looking under battery cover):
DATE:061107(TB02)/EU
New phone:
date:090807(RB01)/EU

I have had the same issue. I have returned the phone today and exchanged on my insurance. the new phone works fine.

thanks for all the feedback - shame there isn't a fix ..
austinsnyc: thanks for your help...
- i was using the connection wizard (difference i've noticed was that it includes a proxy server which i don't when i set up manually) so i created a new connection manually
- i've changed to 3G-only and i got "no service" (though i have previously got it to work)
- i put it on auto, it registered 2G then showed 3G signal in the taskbar. Tried to connect to my manually created connection - no joy: "cannot connect for an unknown reason etc".... then i got "no signal" for about 30 seconds, then full bars of gsm, then shows 3G again....
changed back to gsm only - works fine.
I'm not exactly sure t-mobile are going to take it back!... i'll have to hunt down the original t-mobile uk rom first....

got my new tilt in yesterday and it works totally fine like i thought in my apt. If you could wilbur i would definitely get a new one i think its the phone itself.

lol so i checked to see if switching off the 3g on my new kaiser then switching back would cause the same problem and it sure did so now im stuck with edge in my damn apt. again. I wonder if these new kaiser's they're shipping out are different than the old ones, when i first bought mine at launch oct.5, 07 i could switch back and forth between 3g. Now with 3 new tilts i have gotten i cant do it anymore this blows Damn i should have never given that first one away damn

so annoying...
i upgraded to the latest Dutty Rom (the 6.1 hybrid) - sure enough, straight away after flashing i was able to use 3G to make and receive calls, and to make a data call (but it was really slow)... then, within 30 minutes, i was back to the old phone: cannot connect a 3G call and no connection to data... so annoying - i'd almost prefer it didn't work at all than tempt me with the prospect that one day i'll find a rom that works...
anyway - I'm going to need to replace it - anyone know which rom/radio combo i'd need to flash to convince the guys at T-Mobile to take my VIII back? and btw - does anyone have any experience of trying to return handsets covered in scratches?

can anyone tell me if these problems are linked to Flashing ROMS? Since i had my last Vario 3 replaced ive been apprehensive about flashing if this is what broke the last one but i really want to flash it again.

Impossible to find a radio w/out dropped calls- T-mobile UK

I have tried so many different radios with Dutty's latest 6.1 rom, and all of them continually drop calls. IS there a a Rom & radio combo that works efficiently in the uK?? I mean, dropping calls is a deal killer no matter how fun these roms are??
I have never upgraded to the 1.65 terror radio yet, and plan not too. Just looking for advice as thread searching has not worked out so well. Right now I am on 1.58.16.27, the last 1.58 had no GPS, but both drop calls within minutes.
Any advice appreciated

Have you tried the 1.64.08.21?

trying it now
will report back tonight!

phone rings, data & gps too: NO SOUND
Another disastrous radio. What is wrong? Could it be this rom?

same here, sometimes, only me could hear the voice from the other end, but they couldn't hear me, it happens after several minutes talk. some times, it disconnect from beginning, hell of it. 1.64.08.21

dropped calls are usually due to the phone service. How many bars are you picking up in your area? If you have 1-2 bars, I guarantee you will get a lot of dropped calls. If you try a stock T-mobile Vario III rom, do you get better possibilities? If this is the case, you might have to play around with the operator settings. I always get dropped calls in my house because of the low reception. I live in an area sorrounded by a lot of hills, so it's difficult to pick up certain coverages. When I go to work on the other hand, I never get a drop call. Hopefully this info can help you find a better solution to your problem.

had the wrong radio
I was using 1.65.14.06=disaster, let's see what 1.64.08.21 does. will report back

My mistake, please delete.

No Problems with UK T-Mobile here
I am have only recently upgraded my trusty Hermes (Vario II) to this Kaiser (Vario II) and here in the Swindon area and during journeys in the car have had no problems at all. In fact this Kaiser phone is far clearer that the Hermes ever was - I have tried 3 radio ROMs and all are great. I get a useable GPS lock within 30 secs without running GPS test too.
So I cannot agree with your comments about T-Mobile and the radios - could it be some other software that you are using? Is the radio poor as soon as you have the new OS ROM and new Radio ROM?

I use T-Mobile UK and I don't have these issues either. I have tried lots of ROM's in the last few weeks and all have been fine. I get the occasional "I answer the call but can't hear them" but I get that on my Imate 8150 also, so I think its a reception issue.
I'm currently using Laurentius26 V4 ROM http://forum.xda-developers.com/showthread.php?t=389915 and radio 1.64.08.21 included in that ROM. The ROM is very good indeed, fast and stable, and the radio is as good as any I have used. Perhaps you had a dodgy ROM flash mate?

So far 1.64 08 21 : Data, GPS, & Voice work
Just need to wait a and try a bunch of calls to see if they stick or drop.

I am glad that radio works so far for you. Hopefully that one won't give you any problems, it seems to be one of the most stable radio's out there.

Hey up there, I have been using NoThrills Rom W6.1 with 1.65.14.06 radio, had no problems at all, good GPS and good battery life. The rom is quick too, and I'm from the UK
No probs here.

im on t-mobile uk.using 1.64.08.21-no problems,good gps,good signal... i had before 1.65.XXXX and i had problems with droped calls...

Original ATT Fuze radio version

I bought a fuze to replace my 8525. I had no phone reception issues with my 8525 in my work place, it always stayed locked on 3g, even though it might be a bar or two signal strength.
I recently upgraded to the newest official rom from HTC with the new radio in hopes it would solve the call problems I have. Often times my Fuze will switch between Edge and 3g at work. Calls will have horrible sounding audio, dropping out or no audio at all. The newest radio v1.14 didn't help this.
I've recently loaded the standard Energy rom using TF3D 2 and decided to use the v1.12 radio. The jury is out yet on if this helps, but it seems better.
Anyway, my question is that I didn't write down the orginal version of the radio that came with my Fuze so I can avoid trying that again. I'm going to be trying out different radios to see which one works best.
Does anyone have any suggestions and/or can let me know what that original version was?
Thanks.

Find yourself an answer(s) here http://wiki.xda-developers.com/index.php?pagename=HTC_Raphael_WM6.1_ROMs
Goodluck.

1.02.25.32

Thanks, I knew it was something like that.

What radio to use

Hiya peeps well i am new at this so am not a out blown expert i did a lot of research and i could not find some answer to some wanted question on radio and stuff like that now where i should start
ok i had my treo 750 to att 2.25 and wm 6.1 and i wanted it unbranded to 2.27 so i followed the instruction and i tried to do the radio up date using cheetah but i most have did something not right, for this part i got one question
using a sim card in the network setting for band should it work on auto or its normal that i need to specified what band am using? or i did something to my radio? (and not talking what tower it should connect to that automatic am talking between gsm and umts since am on telus that uses bell/telus shared tower that on UMTS 850 / UMTS 1900 network code of 302880 since i did that at lease it said the right provider and its no longer disconnecting me or saying no service)
if i update my radio should i use from this site?
www crc.id.au/files/xda/Radio_Roms
if yes what version that is safely work with unbranded 2.27 and wm 6.1
if no then where i can find the right radio rom i can grab for my treo 750 and instruction how to install it lol
am trying to understand how the phone should be setup while using a sim card without any disconnection by the phone also gime ability of roaming as well since i like my phone to be able too for future use
anyway thanks for reading and really do hope someone reply
also P.S: about the roaming icon any solution to that?

When you flash an OS ROM, it doesn't change the radio ROM. You have to flash it seperately.
I would suggest you only use the most recent radio ROM for your provider.
I have used 1.54.07 and 1.54.27 on my AT&T Treo 750 with success.
The Treo uses Hermes ROM's ... here is the repository.
http://wiki.xda-developers.com/index.php?pagename=Hermes_ExtractedRadioRoms
Do not install 1.54.30.10 ... it's not a great radio from many accounts and once flashed, you will be stuck with it. You can't flash a new radio over the top of it.

ok now the radio is updated and it work i used the 1.54.07.00 so now am happy for that part but i got 1 more treo 750 i could not updated the radio due to there spl is 0.25 then 1.40 like my main one i normally test on them other treo so if they turn into a brick i would not care lol
is there a way to update a bootloader or i miss something somewhere?

Sounds like you need to Hard SPL the second phone.

well that what am trying to do when i do try with the hard spl v7 it does not work it goes blank so am trying to see if i can find a bootloader that 1.40 so i can so the same thing on the second phone to test radios and other kinky stuff
also on the side spot i notice that my phone fails to auto detect its band and the only way i can make it work is to select the right band for my provider is it coz i didn;t completely unlock my radio or i did something that bad? or re-flash the phone?

Anyone tried the 1.48 Radio ROM. Some are claiming better battery life than the 1.54.

xmadragex said:
well that what am trying to do when i do try with the hard spl v7 it does not work it goes blank so am trying to see if i can find a bootloader that 1.40 so i can so the same thing on the second phone to test radios and other kinky stuff
also on the side spot i notice that my phone fails to auto detect its band and the only way i can make it work is to select the right band for my provider is it coz i didn;t completely unlock my radio or i did something that bad? or re-flash the phone?
Click to expand...
Click to collapse
I wasn't aware there was a v7 to Hard SPL, I just used the version in the first post of the HardSPL sticky here in the Treo 750 forum. It's worked on both Treo's I have tried it on. I would say re-download and re-format the SD card and try again?
As for having to select bands on your phone, my guess is whatever ROM you have flashed might not have the carrier information for your provider included, or your radio might not support the proper bands. Telus doesn't use the same 3G bands as AT&T, but Rogers does. Depending on which version of the phone you have, that could be the issue.
rdecker692000 said:
Anyone tried the 1.48 Radio ROM. Some are claiming better battery life than the 1.54.
Click to expand...
Click to collapse
I tried it on AT&T and both the 1.54.07 and 1.54.27 ROMS were far better in terms of reception for me. Can't remember on the battery life since it's been awhile, but have to believe at the time if it was an issue I would have made the change back.

startngate said:
I tried it on AT&T and both the 1.54.07 and 1.54.27 ROMS were far better in terms of reception for me. Can't remember on the battery life since it's been awhile, but have to believe at the time if it was an issue I would have made the change back.
Click to expand...
Click to collapse
Okay - mine has 1.54.27 on it so I'll leave well enough alone. I just got this off of eBay (non camera version so I can take it to certain places at work) so I'm not sure what to expect for performance. The orginal battery lasted about 1/2 day so I just got a new OEM original battery and still burning it in.
Thanks for the tip.

rdecker692000 said:
Okay - mine has 1.54.27 on it so I'll leave well enough alone. I just got this off of eBay (non camera version so I can take it to certain places at work) so I'm not sure what to expect for performance. The orginal battery lasted about 1/2 day so I just got a new OEM original battery and still burning it in.
Thanks for the tip.
Click to expand...
Click to collapse
I've always been able to get through the day without issue, but can't say I'm a heavy user.
The stock battery is 1200mAh, but Innocell makes a 1600 mAh battery that fits in the OEM space if you need more juice.
http://www.seidioonline.com/product-p/basi16tr680s.htm

startngate said:
I wasn't aware there was a v7 to Hard SPL, I just used the version in the first post of the HardSPL sticky here in the Treo 750 forum. It's worked on both Treo's I have tried it on. I would say re-download and re-format the SD card and try again?
As for having to select bands on your phone, my guess is whatever ROM you have flashed might not have the carrier information for your provider included, or your radio might not support the proper bands. Telus doesn't use the same 3G bands as AT&T, but Rogers does. Depending on which version of the phone you have, that could be the issue.
I tried it on AT&T and both the 1.54.07 and 1.54.27 ROMS were far better in terms of reception for me. Can't remember on the battery life since it's been awhile, but have to believe at the time if it was an issue I would have made the change back.
Click to expand...
Click to collapse
well can ya link me the right hardspl
for my band selection problem is it the OS rom or the Radio rom and if there is one for my carrier where i can find it?

xmadragex said:
well can ya link me the right hardspl
Click to expand...
Click to collapse
It's the first 'sticky' thread in this forum as I previously mentioned.
http://forum.xda-developers.com/showthread.php?t=334100
xmadragex said:
for my band selection problem is it the OS rom or the Radio rom and if there is one for my carrier where i can find it?
Click to expand...
Click to collapse
It's likely not the OS ROM causing it. Assuming you have other phones that lock onto a signal properly in the same locations, then it's probably the radio ROM. However, if the Treo in question was not originally sold for your carrier (which I assume is Telus) then it's possible that the phone is trying to find a frequency for 3G that is not supported by Telus. For example, AT&T shares the same 3G frequencies with Rogers, which are different from Telus'. If you have a Rogers or AT&T version of the Treo, you would probably be better off just locking the phone down to GSM only.
As for finding the proper radio, you would need to try to find any Telus radio ROM that you can. Have no idea what that would be, or where to find it. If you have the original WM5 or WM6 official Telus installer package it would likely be included there. Otherwise you are just going to have to scour the net in seach of it.

Hmm, in my tests it is the OS that handles the Band selection only, what bands the Treo supports is up to the Radio firmware. You can flash a radio that, say, doesn't support UMTS 850, and yet it's possible to write a code to have it selectable.
And a word of advice. If you flash any of those Hermes ROM's, there's no taking it out. No overwriting. So, say if your wireless carrier upgrades their network like mine did, there's no going back to any of the suitable Radios that you can find.
And, just to be helpful, I'll write down which Official Treo Radio can be found in where(the ones I have):
CNG 1.16 (Cingular WM5) with Radio 1.12c [no HSDPA enabled by default]
VFU/VFE 2.18 (Vodafone UK and EU WM6) 2.18 with radio 1.47.02.00 [fast HSPDA on UMTS 2100 band]
H3E 2.19 (H3E Australia WM6) with radio 1.52.30.00 [no GSM locking, AUS band]
ROW 2.23 (WWE Generic WM6) with radio 1.54.00.00 [equal performance on all bands]
ATT/CNG 2.25 (AT&T WM6) with radio 1.54.27.00[Optimized for 1900/850 UMTS bands]
TEL 2.26 (Telstra WM6) with radio 1.54.31.00 [Extra band locking to single UMTS band (850)]
ROG/ROW 2.27 (Rogers and WWE WM6) with radio 1.54.01.00 [Slight performance increase over ROW 2.23]
VFE 2.30 (Vodafone New Zealand WM6) with radio 1.54.02.00 [bug fixes and improvements over ROG/ROW 2.27]
All personally flashed and extensively tested by me on two wireless carriers testing all bands.

mangatron said:
Hmm, in my tests it is the OS that handles the Band selection only, what bands the Treo supports is up to the Radio firmware. You can flash a radio that, say, doesn't support UMTS 850, and yet it's possible to write a code to have it selectable.
And a word of advice. If you flash any of those Hermes ROM's, there's no taking it out. No overwriting. So, say if your wireless carrier upgrades their network like mine did, there's no going back to any of the suitable Radios that you can find.
And, just to be helpful, I'll write down which Official Treo Radio can be found in where(the ones I have):
CNG 1.16 (Cingular WM5) with Radio 1.12c [no HSDPA enabled by default]
VFU/VFE 2.18 (Vodafone UK and EU WM6) 2.18 with radio 1.47.02.00 [fast HSPDA on UMTS 2100 band]
H3E 2.19 (H3E Australia WM6) with radio 1.52.30.00 [no GSM locking, AUS band]
ROW 2.23 (WWE Generic WM6) with radio 1.54.00.00 [equal performance on all bands]
ATT/CNG 2.25 (AT&T WM6) with radio 1.54.27.00[Optimized for 1900/850 UMTS bands]
TEL 2.26 (Telstra WM6) with radio 1.54.31.00 [Extra band locking to single UMTS band (850)]
ROG/ROW 2.27 (Rogers and WWE WM6) with radio 1.54.01.00 [Slight performance increase over ROW 2.23]
VFE 2.30 (Vodafone New Zealand WM6) with radio 1.54.02.00 [bug fixes and improvements over ROG/ROW 2.27]
All personally flashed and extensively tested by me on two wireless carriers testing all bands.
Click to expand...
Click to collapse
I guess we have different experiences then. I have had improvements in my phone locking onto a signal by changing radio ROMs without changing the OS ROM. I also have also used several of the Hermes radio ROM's and have been able to flash new radios without issue. The only exception I have ever seen is the 1.54.30.10 ROM which was widely reported to be impossible to flash over once installed (which for that reason I never tried).
I took from the OP that he was having trouble with his phone locking onto a signal and it was showing up as roaming a lot. I guess my thought was that perhaps he had a phone that wasn't originally sold for his network and it was trying to lock onto a band his carrier didn't support. Logically it seems like that might cause his problem, but I'm not well versed enough to know for sure.
As I mentioned, I am on AT&T and am using the 1.54.27 radio you report. It's the best of the radio ROMs I have tried. The Hermes 1.54.07 was the second best I tried. Thanks for the list, I'm sure it will help a lot of people. Of course you will now start getting requests to post them ...

Heh, when I said it's the OS that controls th selection, I mean just that, basically the drop-down menu in Band Selection. I too know that one can flash new radio's without changing OS's (you don't even have to Clear Data to use the new radio, just edit your choice of Data Connection setting, save, and your phone will automatically re-list your internet setup for use), and that's the thing. The OS will retain the Drop-down menu selection of bands, as it is tied to the OS (or both .pxp packages), an example is several tests I tried, for example the H3E ROM, does not have a selection for "GSM only" in the network type list. Say, if you flashed the ATT radio only then it will still retain the lack of GSM, because it is tied to the OS.
And yeah, I'm sure there would be at least one request. The problem is, I lost my source of instructions for ripping the Radio Firmware from the .nbh files and I do not want people having bricked Treo's all because I didn't follow instructions [I don't have]. Other course of action is to share th ROM itself, but that's large and I don't have an always on connection (this here Treo is my only source for internet, tether and built-in browser)
By the way, there are a lot of others who could not flash over other Hermes Radios, not that .10 one. I myself have 2 AT&T Treo's, and I flashed radio 1.50.00.00 and it remained no matter what I used to flash over it. I eventually gave away that half past dead Treo :/

well it used to be on auto with my telus card and it works on 3g network, the problem happend when i updated my treo 750 to 2.27 from 2.25 with wm6.1 am starting to think i mightn eed to reflash the rom it self

ok my wife as a fido sim card indeed i think its telus sim card the problem i have to use selective band it didn't needed that before i turn the phone from 2.25 ATT to 2.27 rwe the fido card work with the last radio version and i finally updated the bootloader
telus work with selective band >.>
now to know why fido card work auto but not telus

what does the radio do?
i got radio 1.54 .and i got two battery indicator when i installed HTC home (six tabs)
one bat is full and the other is like by bar. i want to remove the two battery because i got some newer/cooler battery indicator.
and i search some radios (idk why) so i try to installed other radios. and my phone stucks at the three colors.
and something pops up to my mind. i use cheetah unlocker. it got
FLASH SPL
RADIO.
idk the one.
so i flash spl and till i get to radio. it automatically updates to 1.1six some other icons on task bar changes.
but what does the radio do? and i dont know.
-sorry for the Six. because my Sixth button on keyboard is broken.