Database Users

[Q] Telstra Galaxy Tab

Hey guys
I have one of the Telstra Galaxy Tabs, and basically want to work a few things out with it.
First off I gather, with mention of all the carrier-specific or gsm/CDMA Specific ROMs, this has something to do with a radio or some such being included?
The Telstra "Next G" Network, which the Tab is used on, is basically 3g on 850mhz. Which of the types would this come under?
I have "Some" experience with flashing/ROMs/etc, namely on my Desire, so I am no expert by any means (Defo wanting to learn, and have learnt a lot from here so far ) but I do have a small amount of experience.
Thanks guys.

So, the community round here will answer questions for people that have obviously not bothered to search and ask the same stupid crap over and over and over, yet someone who has done a LOT of research, and is legitimately confused over a terminology issue (because technically it ISNT GSM or CDMA if you learn how the networks actually work) and just wants a simple answer to a simple question, just gets totally ignored?
Great to see guys, Great to see.

850 would be like att
Sent from my SPH-P100 using XDA App

GSM radio hardware is largely irrelevant, the hardware does the heavy lifting, the firmware doesn't care that it is, as long as it supports the right protocols.
Telstra uses a GSM/HSDPA/WCDMA network. In most cases, this is the case if your device has a SIM card.
The Tab sold here is essentially the standard UK version. If Telstra has an 850/2100Mhz HSDPA version then that could potentially be different. If you can root it using SuperOneClick, then run a complete firmware backup and try updating with another GSM firmware (e.g. RotoHammers JME) and see how you go. Before doing so, check that the device is unlocked, check if it can be rooted, determine the existing firmware/modem versions and the CSC version. It may be a custom firmware, it may not.
Your "LOT of research" was obviously fairly deficient if it hadn't ruled out Telstra using a CDMA network. http://en.wikipedia.org/wiki/Telstra

corodius said:
Hey guys
I have one of the Telstra Galaxy Tabs, and basically want to work a few things out with it.
First off I gather, with mention of all the carrier-specific or gsm/CDMA Specific ROMs, this has something to do with a radio or some such being included?
The Telstra "Next G" Network, which the Tab is used on, is basically 3g on 850mhz. Which of the types would this come under?
I have "Some" experience with flashing/ROMs/etc, namely on my Desire, so I am no expert by any means (Defo wanting to learn, and have learnt a lot from here so far ) but I do have a small amount of experience.
Thanks guys.
Click to expand...
Click to collapse
Hey mate, i have a telstra tab, on original firmware (jj3 i think) i would only ever get 3g..
After flashing rotos jme + the phone.bin, i now get hspa most the time.
Rotos firmware works perfectly, but as always backup everything

Posted by knightnz:
GSM radio hardware is largely irrelevant, the hardware does the heavy lifting, the firmware doesn't care that it is, as long as it supports the right protocols.
Telstra uses a GSM/HSDPA/WCDMA network. In most cases, this is the case if your device has a SIM card.
The Tab sold here is essentially the standard UK version. If Telstra has an 850/2100Mhz HSDPA version then that could potentially be different. If you can root it using SuperOneClick, then run a complete firmware backup and try updating with another GSM firmware (e.g. RotoHammers JME) and see how you go. Before doing so, check that the device is unlocked, check if it can be rooted, determine the existing firmware/modem versions and the CSC version. It may be a custom firmware, it may not.
Your "LOT of research" was obviously fairly deficient if it hadn't ruled out Telstra using a CDMA network. http://en.wikipedia.org/wiki/Telstra
Click to expand...
Click to collapse
Well, The network you are referencing is actually the "Telstra 3g" Network used only in the capital cities around here. The network my Tab is used on/made for is the "Next G" Network. http://en.wikipedia.org/wiki/Next_G is the specific network. As you can see, it is technically not GSM at all, it is UMTS, and actually replaced our old CDMA network. So, this is where my confusion was coming in. But, if I have this correct, it is used as a basic term, meaning GSM = Sim Card and CDMA = No Sim Card (like our old CDMA network, phone itself is coded to the number/network type thing, which to be honest I didn't realise still even existed) yeah?
Cheers for clearing that up
As for the freqs, if I do a *#2263# the 3 WCDMA bands that are starred are 850mhz 1900mhz and 2100mhz. The GSM Fallback shows GSM 850 GSM 900 DCS 1800 PCS 1900 all starred. (Yes I did realise this before, I explained why I was confused with the terms hehe) The main band I have to worry about really is 850mhz though, on the WCDMA side, as you would have seen from the link.
Well, the device can be rooted with Z4Root at least, that is what I have used to root the device. This is exactly what I intend to try, once I am sure I understand everything. Does not hurt to read and re-read until one is definately comfortable with the steps, and I like to understand what every part is that I am doing.
Posted by natious:
Hey mate, i have a telstra tab, on original firmware (jj3 i think) i would only ever get 3g..
After flashing rotos jme + the phone.bin, i now get hspa most the time.
Rotos firmware works perfectly, but as always backup everything
Click to expand...
Click to collapse
Just to be 100% sure, that is the one here? And you are on the Next G Network? (I assume so with the 850mhz band etc, I thought this would work, but doesn't hurt to be sure I am looking at the right one you are talking about hehe.)
I can confirm the original firmware is JJ3, with phone calling capabilities etc.
Of course, backups always come first, always.
Thank you heaps for the info.
Also, if there is any part of this device's firmware etc that would be helpful in any way to the devs, I would be happy to extract anything needed from a rotobackup or whatever. I won't be flashing it straight away, and definately not before a full backup anyway.
(edit:spelling)

HI mate, how did you go with the flash?
I'm thinking of doing this as well, but just want to see if anybody has noticed any difference (for the better that is).

I have n Australian telstra tab on the next g network, and flashing a rom was the best thing I ever did
swyped from a galaxy far far away...

Hey, not trying to hijack this thread, although I too just got a SGT for the wife from Optus this morning and playing around with it and keen to hack.
Mine came with the following
PDA : P1000XWJJ4
PHONE : P1000XXJID
CSC : P1000OPSJJ3
Build Time : 2010.10.16 20:35:06 KST
Changelist : 639474
Firmware 2.2
Kernel Version : 2.6.32.9
Keen to know what is the best rom for us here down under, i'm, off to root me SGT.
Cheers
Kosti

For the optus tab any euro rom will work i started with the modaco rom and kernal then moved to the overcome rom and kernal. Both ran prefectly just make a backup to be safe.
Sent from my X10i using XDA App

snoopXR6 said:
For the optus tab any euro rom will work i started with the modaco rom and kernal then moved to the overcome rom and kernal. Both ran prefectly just make a backup to be safe.
Sent from my X10i using XDA App
Click to expand...
Click to collapse
Thanks heaps!
I did try to root it, and used OneClick, when 1st time round it sort of worked, then I tried it again with the rageagainstcage option and busybox installed this time round.
Next is off to grab overcome rom, will try and do a backup but only have a 1G card atm
Again thanks and sorry to the OP for the hijack
PEACE
Kosti

[Q] HTC Wildfire + Radio image question

Hi
I have recently purchased an HTC Wildfire A3335. For those of you don't know, this is a special version of the Wildfire which has a UMTS 850/2100 Radio. Anyway this phone seems only to be available heavily branded through an Australian operator, Telstra.
Due to the hideousness of the branding, I naturally wanted to get rid of it. This was pretty easy-- Cool-- I now have an unbranded wildfire A3335.
Now, when it was flashing (using an HTC RUU exe) I noticed that it was "Reflashing the radio". I freaked out. I know this phone has a special radio in it and of course the unbranded RUU is for the 900/2100 UMTS version (A3333).
So as expected the phone has lost its very special 850MHz UMTS and now only works at 2100MHz (I doubt the phone has suddenly gained the ability to use 900MHz UMTS as it has the wrong chips in it)
The Radio image for this phone is available inside the Telstra RUU on shipped-roms.
My question. Is it possible to extract the radio image out of that and flash it in with the rest of the unbranded system? And hopefully get my 850MHz UMTS back. Currently it appears that the answer to this is no due to the lack of signing?
Current HBOOT: 0.80-0007
Current ROM HTC Standard (Eclair 2.1) 1.37

You can't lose or gain any frequencies by flashing the radio, it's in the hardware...

OK firstly, I did lose 850MHz when flashing the standard image on, so you definitely can lose (but never gain)
The Radio PHY in the phone will be split into two parts, the 2100MHz part and the 850MHz part (or a 900MHz part).
So on the normal wildfire radio image, there's a driver which is likely compiled to drive a 2100/900 radio, and when we run that image on the 2100/850 phone, 2100 remains working because this part of the chip is identical. The 850MHz part dies completely because this driver is not expecting it.
I know how lazy microcode developers are - it's very rare for anyone to go to the effort to make microcode images to support two subtley different chips, instead they will compile two versions of the microcode with subtle changes for each one. Only one bit in a register need be set wrong and the whole lot comes crashing down!
Now there could be a scenario where the radio is a 100% hardware solution, and there is no microcode for the UMTS radio, in which case there's a better chance that having the wrong radio image is not an issue, as the chips themselves are more autonomous. But then - What does the radio image do? In my experience of working with 802.11 Radio PHYs: Not likely. These chips are almost always highly software driven and must be running the correct code to fully function.

Okay so it looks like I just became the "expert" on this one and can now answer my own question.
It is possible to restore the original Telstra radio image, without rebranding the phone using the Telstra RUU.
This is what I did:
1) Download Telstra RUU from shipped-roms
2) Extract radio.img using this process: http://lukasz.szmit.eu/2010/04/extracting-rom-files-from-htc-android.html
3) Repacked radio.img into an update.zip
4) Signed update.zip using http://android.modaco.com/content/software/313829/pc-tool-zip-signer-v1-1/#entry1348449
5) Manually added com/google/android directory into META-INF directory in ZIP file (Copied from someone else's radio image.
6) Flashed image using clockworkmod "update sdcard" menu (unrevoked had already installed clockworkmod)
Done! I've got my 850MHz back again!
I've included the update.zip with the Telstra wildfire radio image here: http://xpander.inaxeon.com/data/files/update.zip
It's interesting looking around the various forums, I think a lot of people have been willy nilly flashing the wrong radios onto their special 850MHz devices then not fully understanding why their phones are without 3G coverage a lot of the time. Oops!

Interesting, last time I checked the radios were identical. I must have missed something. I'll try cross flashing the Telstra A3335 radio on the 900/2100mhz A3333 and see what happens, 3G up here in Canada runs on 850/1900, getting 3G on one of the 2 bands would be nice.
Edit: It's the same as the other radio of the same version 13.45.55.24/3.35.15.31 , did a checksum against the HK_CHT one (cid HTC__622, a A3333)
Maybe the "H" in the version have something to do with the frequencies? ie: Radio_13.55.55.24H_3.35.20.10 from the Froyo WWE rom.

Did you not read my second message!
Unless you have an A3335 flashing the Telstra radio is going to make your phone even worse!
The full solution for 850MHz UMTS requires:
A) The right hardware: (Wildfire A3335)
B) With the right software: The Telstra "Radio_13.45.55.24_3.35.15.31" is currently the only radio image in existance which can correctly drive the A3335, and in no circumstances should be flashed on anything other than the A3335!
Likewise - If you have an A3333
Do not flash the Telstra radio image on it, as it is the wrong code. You'll end up losing your 900MHz UMTS in the process (OK so that doesn't matter too much in Canada)
To say it even simpler:
Every radio image except Telstra is OK for use on the A3333
The A3335 must be running the Telstra radio image
Telstra Radio_13.45.55.24_3.35.15.31 is a special piece of software for a special piece of hardware!
EDIT: Kwen has checksumed the A3333 and A3335 images of Radio_13.45.55.24_3.35.15.31 and found them to be identical. This confirms that this paticular version supports both 850/2100 and 900/2100 phones, whilist newer versions do not. See more recent posts.

i have a telstra wildfire which i have wildpuzzle v.08 running on, with putting a new rom on i would presume i have a different radio, am i correct. yet i can get 3g and wcdma/hsdpa no problems. or am i confusing myself

Thanks for this. I'm going to keep the update.zip safe just incase.
I've just imported an A3335 to use on the Telecom XT network here in NZ and I just flashed it with DK's rom (shame that I'm still stuck with the Telstra splash screen).
Although 850MHz is the primary band Telecom uses for their network they also have 2100MHz fallback in my location, so I'm not 100% sure what band the phone is running on.
Is there a service menu or an app on the marketplace I can use to check the band for peace of mind?
Thanks again.

inaxeon said:
Did you not read my second message!
Unless you have an A3335 flashing the Telstra radio is going to make your phone even worse!
The full solution for 850MHz UMTS requires:
A) The right hardware: (Wildfire A3335)
B) With the right software: The Telstra "Radio_13.45.55.24_3.35.15.31" is currently the only radio image in existance which can correctly drive the A3335, and in no circumstances should be flashed on anything other than the A3335!
Likewise - If you have an A3333
Do not flash the Telstra radio image on it, as it is the wrong code. You'll end up losing your 900MHz UMTS in the process (OK so that doesn't matter too much in Canada)
To say it even simpler:
Every radio image except Telstra is OK for use on the A3333
The A3335 must be running the Telstra radio image
Telstra Radio_13.45.55.24_3.35.15.31 is a special piece of software for a special piece of hardware!
Click to expand...
Click to collapse
It made no difference, couldn't tell if I lost the 900Mhz, couldn't get the 850Mhz for sure.
I tried playing in the Field test menu to switch between GSM Only to WCDMA Prefered/Only and the Band selection menu and completly lost access to GSM, it was stuck on WCDMA Only, had to do a nand restore (nothing to do with the radio version)
I'm not sure if the Radio_13.45.55.24_3.35.15.31 is exclusive to the A3335, most of the roms uses it:
Vodafone SPA
H3G ITA
HTC WWE
HTC Asia India
HTC Asia WWE
HTC Asia HK CHT (that's my phone and it'ss a A3333)
H3G UK
HTC Asia TW
HTC FRA Bouygues
HTC WWE Tesco
Vodafone DE
How did you find out which band your Wildfire was using? (or did you just not have any signal?)

Kwen said:
How did you find out which band your Wildfire was using? (or did you just not have any signal?)
Click to expand...
Click to collapse
Pretty easy. My operator has no GSM (at all) or 2100MHz sites where this phone is most commonly used. When the alternate radio was flashed on, the phone flat out lost all connectivity to the network. It only returned when the phone was driven to a place known to have 2100MHz coverage. That was a pretty damning and poignant confirmation.
About the versions of the Radio, When I was first considering flashing the RUU I had already been concerned about the radio image and checked the version. I saw that it was used in other A3333 targetted images so assumed that the radio images were not phone specific. Turns out I was wrong.
What would be interesting is to checksum compare Radio_13.45.55.24_3.35.15.31 from Telstra vs. other images. If they are identical, then we know that this particular version supports both style of radios, in which case it is safe for both versions. The reason I've always been qualifying that version "Telstra" is in the fear that they are different despite the identical version number.
Short of actually being a hard core hacker or HTC engineer, It's a bit hard to tell really. All one can really do is share their experiences.

I can confirm thier identical checksum (I checked against another one - not all the versions lol)

another special version of the WF
Hey man, I have a wildfire which runs on these frequencies GSM/GPRS/EDGE: 850/900/1800/1900 MHz and HSPA/WCDMA 850/1900 MHz.
I was going to flash a stock RUU till I read your post, so I wanted to thank you for saving my precious 3g!

juanchotolas said:
Hey man, I have a wildfire which runs on these frequencies GSM/GPRS/EDGE: 850/900/1800/1900 MHz and HSPA/WCDMA 850/1900 MHz.
Click to expand...
Click to collapse
What the heck model is that!
I understand HTC may have a provision for 850/1900 (Model A3334) But as far as I knew that never went into production due to lack of interest from operators. Or is this a fruity variant of one of the new Wildfire S models?
EDIT: As bought to my attention by juanchotolas - it appears that the 850/1900 A3334? (Awaiting confirmation of the exact model number) may exist after all. It leads a low key existance in Latin America sold under an obfuscated difficult-to-google-for name. It's called "Desire A" but it's really a Wildfire. Here's the little beasty: http://www.htc.com/la/product/htc-desire-a/overview.html

fahrenheit451 said:
Thanks for this. I'm going to keep the update.zip safe just incase.
I've just imported an A3335 to use on the Telecom XT network here in NZ and I just flashed it with DK's rom (shame that I'm still stuck with the Telstra splash screen).
Although 850MHz is the primary band Telecom uses for their network they also have 2100MHz fallback in my location, so I'm not 100% sure what band the phone is running on.
Is there a service menu or an app on the marketplace I can use to check the band for peace of mind?
Thanks again.
Click to expand...
Click to collapse
I've spent many an hour searching for such an application and one does not seem to exist. Post one here if you find one.
The phone I've been working on was a present for my sister is also used on Telecom XT, I bought it due to the spectacularly average range of phones available at the time through Leading Edge, hence my burning desire to remove the Telstra branding.
You can imagine how incredibly silly I felt when it arrived, she powered it up and it couldn't connect to XT. The thing that's made it extra frustrating is that I live in the UK and was originally working on the phone from here. The UK only has 2100MHz UMTS so couldn't test properly before posting. I've had to do all of this reflashing over the phone and with remote access from the other side of the planet!
Anyway, If you flash the most recent 2.1 RUU (not 2.2) then reflash the radio I posted, you can achieve a fully unbranded A3335 on XT.
You're fortunate to have 850MHz UMTS over there, No one offers sub 1GHz 3G here and it stinks! I used XT for a few weeks while I was back for Xmas and it was an amazing service (If you can get over the cost). You can't have service like that on any network here. Green with envy.

inaxeon said:
I've spent many an hour searching for such an application and one does not seem to exist. Post one here if you find one.
The phone I've been working on was a present for my sister is also used on Telecom XT, I bought it due to the spectacularly average range of phones available at the time through Leading Edge, hence my burning desire to remove the Telstra branding.
You can imagine how incredibly silly I felt when it arrived, she powered it up and it couldn't connect to XT. The thing that's made it extra frustrating is that I live in the UK and was originally working on the phone from here. The UK *only* has 2100MHz UMTS so couldn't test properly before posting. I've had to do all of this reflashing over the phone and with remote access from the other side of the planet!
Anyway, If you flash the most recent 2.1 RUU (not 2.2) then reflash the radio I posted, you can achieve a fully unbranded A3335 on XT.
You're fortunate to have 850MHz UMTS over there, No one offers sub 1GHz 3G here and it stinks! I used XT for a few weeks while I was back for Xmas and it was an amazing service (If you can get over the cost). You can't have service like that on any network here. Green with envy.
Click to expand...
Click to collapse
I was attracted to DK's rom because he made mention that the radio was left untouched (or optional to flash). So I'm fairly certain I'm running the original Telstra radio. I just can't be certain.
Would like to flash the 2.1 RUU and then back to DK again to get rid of the splash screen but for me, all that risk isn't worth the vanity. Like you, the phone isn't mine. It was bought for someone else but I'm responsible for its up-keep.

fahrenheit451 said:
I was attracted to DK's rom because he made mention that the radio was left untouched (or optional to flash). So I'm fairly certain I'm running the original Telstra radio. I just can't be certain.
Would like to flash the 2.1 RUU and then back to DK again to get rid of the splash screen but for me, all that risk isn't worth the vanity. Like you, the phone isn't mine. It was bought for someone else but I'm responsible for its up-keep.
Click to expand...
Click to collapse
I'm all about the vanity! I even replaced its plasticwork to remove the logos from the case and posted it in a London issue Wildfire box (had one spare). There is not a single Telstra logo anywhere on this puppy! I think I'd be pretty comfortable in assuming that it's the only fully software/physically unbranded unit in the country- pretty satisfied with that!
The ROM and the Radio are two different components. You should never overwrite a radio by flashing just a ROM.
There's only two (maybe 3) ways you'll ever end up overwriting the Radio on an HTC phone:
1) Flashing an HTC RUU
2) Explicitly flashing a radio update with Clockworkmod.
3) It is theoretically possible for ROMs to include Radio updates but I've never seen a third party ROM contain a radio image. With maybe a small number of exceptions, ROM developers generally aren't going to risk deploying radios with their releases.
Of course you can easily find out by examining the contents of the META-INF/com/google/android/update-script file in the ZIP archive. If there's any mention of "Radio" in there then avoid it on exotic models like A3335

-strike off. the radio build might be different - there might be radios with partial coverage-

inaxeon said:
What the heck model is that!
I understand HTC may have a provision for 850/1900 (Model A3334) But as far as I knew that never went into production due to lack of interest from operators. Or is this a fruity variant of one of the new Wildfire S models?
Click to expand...
Click to collapse
This is the "Latin-american" Wildfire it is called Desire A (but we know it's a wildfire...) Here is the translated link so you can check it out http://translate.google.com/transla...la/product/htc-desire-a/overview.html&act=url

juanchotolas said:
This is the "Latin-american" Wildfire it is called Desire A (but we know it's a wildfire...) Here is the translated link so you can check it out http://translate.google.com/transla...la/product/htc-desire-a/overview.html&act=url
Click to expand...
Click to collapse
850/1900, those are freq used in Canada!
Here's the Mexican carrier's page:
http://www.iusacell.com.mx/New_Site/Equipos/

inaxeon said:
You're fortunate to have 850MHz UMTS over there, No one offers sub 1GHz 3G here and it stinks! I used XT for a few weeks while I was back for Xmas and it was an amazing service (If you can get over the cost). You can't have service like that on any network here. Green with envy.
Click to expand...
Click to collapse
whats so special about sub ghz 3g? Anyway werent o2 meant to be starting to use 900 mhz
Sent from my GT-P1000 using XDA App

[Q] Baseband switcher for Defy+

Looking to upgrade and get the Defy + as I am nearly out on my contract on my original defy and have had it for 2 years now.
Was looking on buying a defy + and taking it to Canada and get a sim over there to use. Just wanted to know if I can use the baseband switcher and use my defy I am going to purchase in England abroad in Canada.
Don't want to pay lots of money and find out it will be ineffective in Canada.
All help appreciated.

Baseband switcher only helps in changing your baseband to make it compatible with any country sim. It doesnt unlocks your cell for enabling your cell to use any other sim.
Sent from my MB525 using XDA

To save yourself from trouble you should buy the unlocked defy+. But if you get the locked one, you could try to unlock it on swiftunlock.net for a few bucks.
Even the cheapest phone that you can't use, costs a lots of money

No its not locked to a certain provider. I was just wondering does a English phone work in Canada. It's unlocked, so your saying it will work? If I just change the baseband to I think it will be international baseband. There isn't a Canada baseband I don't think.
So in theory buy a phone here (unlocked) And change the baseband so it works in Canada and use a Canadian providers sim. Thanks for all the help.

Defy + has a quad-band witch means you can use it (pretty much) all over the world. Worse case scenario, what I certainly doubt, you'll have to use a baseband switcher.

What about the Defy. Can that be used in Canada too? Is it a quad band phone? Might save my self a few pounds and keep my original defy.
Thanks for the help guys.

williambrown188 said:
What about the Defy. Can that be used in Canada too? Is it a quad band phone? Might save my self a few pounds and keep my original defy.
Thanks for the help guys.
Click to expand...
Click to collapse
But of course it can. Defy+ is (to put it simple) slightly modified defy with larger battery capacity. You could, for just in case, install baseband switcher before you sail away . Keep in mind that your defy has to be rooted for that.
Have a good trip

When I try to change frequencies with cyanogen baseband settings, the phone loses signal. I tried with basebandswitcher also, but didn't work, they didn't change frequencies and the phone lost signal. Do you know why?
I have a Defy+ with cm9:
CM9-NIGHTLY-120516-Defy+.zip (Epsylon3 version)
With cm7 occurs the same.
The cellphone settings box says: WCDMA 900/2100 but i am trying to change it to 850/1900 (Colombia setting). Motorola Defy+ is QuadBand in HSDPA? Should these programs work with Defy+? Thanks

Maybe you should try fix for Argentina users from this thread.

[Q] Baseband Issues...

Hello all, I just bought a Defy mb525 green lens off amazon. I'm in the United States and my sim card is from T-mobile. The phone is from south american (not sure which country)
With the stock rom everything worked fine.. but after i installed cm10 all i got was emergency calls only. I tried all the T-mobil basebands.. as well as every other baseband.. not once did i ever get a signal of any kind.. at one point my phone detected at&t but still had no signal..
I then tried cm7 but had the same result..
I then tried stock cee just to settle on something that works but got rid of blur.. but still had no signal..
If you live in the United States and are on t-mobile wat baseband do you use? Could the issue be with different hardware due to the phone being made for south America? (although with the stock rom i have a great signal) Any comments or suggestions would be much appreciated..
Thanks in advance,
Eman

Baseband troubles with Defy MB525 - partial solution - and questions
Eman Leerton said:
Hello all, I just bought a Defy mb525 green lens off amazon. I'm in the United States and my sim card is from T-mobile. The phone is from south american (not sure which country)
With the stock rom everything worked fine.. but after i installed cm10 all i got was emergency calls only. I tried all the T-mobil basebands.. as well as every other baseband.. not once did i ever get a signal of any kind.. at one point my phone detected at&t but still had no signal..
I then tried cm7 but had the same result..
I then tried stock cee just to settle on something that works but got rid of blur.. but still had no signal..
If you live in the United States and are on t-mobile wat baseband do you use? Could the issue be with different hardware due to the phone being made for south America? (although with the stock rom i have a great signal) Any comments or suggestions would be much appreciated..
Thanks in advance,
Eman
Click to expand...
Click to collapse
I have a similar issue with a Defy MB525 that I bought as a refurb from Amazon just a couple of weeks ago.
When I received it, it seemed to be set up with Spanish as it's primary language...
Anyhow I reflashed it with a motorola sbf file that allegedly was for Tmobile USA and had Android 2.2.
Then I rooted it and loaded up CyangenMod 7.2...
I have a SIM from Lycamobile USA, which rides on the Tmobile network.
Before fiddling with the various baseband selections available via CM7.2 I could not make any calls
Phone info, baseband version:EPU93_U_00.59.01
Partial solution.
Tried all of the TMobile/USA baseband settings - no joy.
In desparation tried some of the SouthAmerican settings and the Asian settings...
The best of the lot seems to be Asia/China/ME722 1.10 850/1900/2100
Which works okay and gets an "all bars" signal for me - for Voice and Edge data.
I suspect this setting works because T-Mobile operates Voice and Edge on 1900Mhz in my area.
Also, in some areas, I get "emergency call only", which is probably on the 850 band that belongs to AT&T.
Problem
I don't get any 3G service. That's probably because, as I understand it, 3G for t-mobile is using 1700/2100 (up/down or vice-versa)
and my radio isn't set up to use the 1700 Mhz band.
Question
Can I fix this with a reflash of firmware - to exploit "quad" band operation 850/1700/1900/2100? Which are all in use by Tmobile and/or AT&T in the USA, according to various Wikipedia articles.
If so, which firmware should I load?
If not, is this a hardware limitation of the Defy MB525? Some builds/versions? Or all versions/builds?

bob.teatow said:
I have a similar issue with a Defy MB525 that I bought as a refurb from Amazon just a couple of weeks ago.
When I received it, it seemed to be set up with Spanish as it's primary language...
Anyhow I reflashed it with a motorola sbf file that allegedly was for Tmobile USA and had Android 2.2.
Then I rooted it and loaded up CyangenMod 7.2...
I have a SIM from Lycamobile USA, which rides on the Tmobile network.
Before fiddling with the various baseband selections available via CM7.2 I could not make any calls
Phone info, baseband version:EPU93_U_00.59.01
Partial solution.
Tried all of the TMobile/USA baseband settings - no joy.
In desparation tried some of the SouthAmerican settings and the Asian settings...
The best of the lot seems to be Asia/China/ME722 1.10 850/1900/2100
Which works okay and gets an "all bars" signal for me - for Voice and Edge data.
I suspect this setting works because T-Mobile operates Voice and Edge on 1900Mhz in my area.
Also, in some areas, I get "emergency call only", which is probably on the 850 band that belongs to AT&T.
Problem
I don't get any 3G service. That's probably because, as I understand it, 3G for t-mobile is using 1700/2100 (up/down or vice-versa)
and my radio isn't set up to use the 1700 Mhz band.
Question
Can I fix this with a reflash of firmware - to exploit "quad" band operation 850/1700/1900/2100? Which are all in use by Tmobile and/or AT&T in the USA, according to various Wikipedia articles.
If so, which firmware should I load?
If not, is this a hardware limitation of the Defy MB525? Some builds/versions? Or all versions/builds?
Click to expand...
Click to collapse
I use the Colombian frequencies, better battery life than Chinese. But yeah, occasionally on some stock builds I wouldn't get any signal. If you're in South America, try using the Retail ROM for Latin America. More specifically "JORLA_U3_3.4.2_108-2_R02_SIGNED_USAJORDMR1B25RETLALA01F.0R_JORLAFRORETLALA_P008_A005_M001_HWp3_WIG147146_Service1FF", which is the one I'm on now.
And no, in most countries you won't get 3g, since this is a hardware issue. I get 3G in Ecuador, but that is only because Movistar here uses 850mhz band for UMTS. Another option would be to sell your Defy and find a Argentina Personal Defy which uses 800/1900, or buy a European Defy that uses 900/2100, since I think in almost every South American country there is at least one carrier that uses those frequencies.
But T-Mobile's defy in South America, as far as I know, will only get you 3G in Ecuador.
EDIT: Misunderstood the post, wasn't paying attention , but my point is still valid. It's a hardware issue.

Update - MB525 Tmobile Melrose MA seeing HSPA
Antiga Prime said:
I use the Colombian frequencies, better battery life than Chinese. But yeah, occasionally on some stock builds I wouldn't get any signal. If you're in South America, try using the Retail ROM for Latin America. More specifically "JORLA_U3_3.4.2_108-2_R02_SIGNED_USAJORDMR1B25RETLALA01F.0R_JORLAFRORETLALA_P008_A005_M001_HWp3_WIG147146_Service1FF", which is the one I'm on now.
And no, in most countries you won't get 3g, since this is a hardware issue. I get 3G in Ecuador, but that is only because Movistar here uses 850mhz band for UMTS. Another option would be to sell your Defy and find a Argentina Personal Defy which uses 800/1900, or buy a European Defy that uses 900/2100, since I think in almost every South American country there is at least one carrier that uses those frequencies.
But T-Mobile's defy in South America, as far as I know, will only get you 3G in Ecuador.
EDIT: Misunderstood the post, wasn't paying attention , but my point is still valid. It's a hardware issue.
Click to expand...
Click to collapse
I'm visiting Melrose MA today and I'm seeing an HSPA signal! Still with the "China" settings...
Speedtest.net says I got:
Code:
Date,ConnType,Lat,Lon,Download,Upload,Latency,ServerName,InternalIp,ExternalIp
"2013-06-21 15:32","Hspa","42.45245","-71.06685",1388,988,282,"Boston, MA","10.230.130.121","83.137.2.146"
"2013-06-20 07:49","Edge","41.33962","-73.37708",198,112,467,"Secaucus, NJ","10.230.142.199","83.137.2.147"
While the "Network Signal Info" app says I'm HSPA at 14.4 Mbps, I guess that's a max.
Soo... this is good, but I'm still curious -- how can I determine which band(s) the radio is operating on?
According to Wikipedia, T-mobile runs HSPA on the 1900Mhz band in some areas and 1700/2100 in others...
Since I set my radio to 850/1900/2100 - my first guess is I've wandered into a 1900/1900 HSPA zone...
My connection is to CID13693382 / LAC 36498 MCC-MNC 310-260 Is there a database where I can find out what frequencies are assigned to this cell tower for T-mobile? Lots of location/map services - but I didn't find any info about baseband allocations in this area...
Hmmm... Let's try switching the baseband to the T-mobile USA 6.x settings...
Same result as in CT, no service, no joy ;-(
Do the T-Mobile USA settings work for anyone watching this board?

SM-N910K stuck on 3G in Brazil

Ok, so i ordered a SM-N910U from 28mobile.com, and they sent me a carrier branded SM-n910K, which by its specifications should work with Brazilian LTE (band 7 - 2600). However I am stuck on 3g. I was wondering if maybe the whole internet is wrong and this device doesnt support this band, or maybe its some sort of carrier lock. Also, how do i disable the awful branding, will flash a different firmware work and which do i flash?
Thanks

repl0id said:
Ok, so i ordered a SM-N910U from 28mobile.com, and they sent me a carrier branded SM-n910K, which by its specifications should work with Brazilian LTE (band 7 - 2600). However I am stuck on 3g. I was wondering if maybe the whole internet is wrong and this device doesnt support this band, or maybe its some sort of carrier lock. Also, how do i disable the awful branding, will flash a different firmware work and which do i flash?Thanks
Click to expand...
Click to collapse
1) check frequencies that U model supports @ samsung website (its asian/hong kong, right? those miss some frequencieos)
2) check which frequencies are used for 4g by your brazilian telco.
3) compare.
if frequencies match, you might want to try:
1) getting a new sim that is surely 4g-capable
2) getting an iphone nano-sim. this is crazy, but for many users in russian forums that has solved 4g connectivity issues with one telco.
3) making sure your plan supports 4g
4) ensure you have 4g coverage.

lisbon2004 said:
1) check frequencies that U model supports @ samsung website (its asian/hong kong, right? those miss some frequencieos)
2) check which frequencies are used for 4g by your brazilian telco.
3) compare.
if frequencies match, you might want to try:
1) getting a new sim that is surely 4g-capable
2) getting an iphone nano-sim. this is crazy, but for many users in russian forums that has solved 4g connectivity issues with one telco.
3) making sure your plan supports 4g
4) ensure you have 4g coverage.
Click to expand...
Click to collapse
1) Sim is 4g
2)will try
3) IT does
4) I do
Is the SM-N910U the same as the SM-N910K as far as LTE bands go? I dont get it, they are both supposed to support Band 7 - 2600MHZ, which is the one we have over here. What about flashing a different firmware? I've been trying with odin, to no success.

They do support that frequency so it's probably something to do with your sim card or carrier?
And 28mobile told me I was receiving one model only to get the k model like you. Wasn't happy. The updates for firmwares are slow

lawtq said:
They do support that frequency so it's probably something to do with your sim card or carrier?
And 28mobile told me I was receiving one model only to get the k model like you. Wasn't happy. The updates for firmwares are slow
Click to expand...
Click to collapse
Well, I am on a LTE plan, tried 3 different sims already, they are all stuck on 3G...And all our carriers have the same band, which is 7...So it's not the sim or the carrier...its the phone. I bet that there's some sort of lock going on, since all roaming options are grayed out (the phone is not stuck on roaming, however). I am trying to flash any other model's firmware, like U, C and even S, but odin always fails when trying.

repl0id said:
Ok, so i ordered a SM-N910U from 28mobile.com, and they sent me a carrier branded SM-n910K, which by its specifications should work with Brazilian LTE (band 7 - 2600). However I am stuck on 3g. I was wondering if maybe the whole internet is wrong and this device doesnt support this band, or maybe its some sort of carrier lock. Also, how do i disable the awful branding, will flash a different firmware work and which do i flash?
Thanks
Click to expand...
Click to collapse
When you ordered the "U"-model, and got a branded "K"-model, I would complain to the shop you bought it and demand a swap to the model you ordered!