Database Info

[Q] Unlocked D2G Working On TMobile US But Questions Remain

Hi,
I'm actually not new to XDA, I 've been a member for about 3 years and used to screw with my old broken HTC G1 all kinds of ways. So ignore the newbie status, I forgot all the old login info and had to re-roll.
Anyway, so now I have a sweet shiny Droid 2 Global that I bought off a ebay for a very nice $149 buy it now in used but excellent condition.
It was listed as unlocked and obviously indeed is because I am running it on Tmobile with a tmob simcard in Dallas, tx. So, I can make calls, internet works and is ok but only on edge (2G), signal is generally pretty good overall.
My questions (after days of searching and reading up, don't tell me to search) Are these:
1. Am I already band unlocked? I can already use tmob's edge/2g, and I can see AT&T's 2g and 3g networks when I search but I can't connect to them or they don't work if I do i'm guessing because i'm on a tmobile sim and obviously can't logon to at&t.
2. If it isn't band unlocked, would doing so unlock tmobile's 3g or is that just straight up not compatible and never going to happen with or without a band unlock?
3. If not with tmobile np, can I get 3g with at&t? Especially since I already can see their 3g network when searching.
4. Wether or not I am running a custom rom or the stocker....
It says it's running 2.4.330 A956.verizon.en.us kernel android version 2.2 kernel version 2.6.32.9 build number VZW
Not sure if this is the stocker or a pre-installed XDA Rom. It boots to a clockwork recovery tool screen too before actually booting into android. Is that something added on or is it on the phone already?
Thanks in advance for any help, so happy to have a badass new phone to screw with.

1. Sure seems like it. You wouldn't be able to use the T-Mobile SIM at all otherwise.
2. T-Mobile uses 1700MHz. The D2G does not support 1700MHz. Period.
3. Yes.
4. 2.4.330 is stock Motorola Froyo firmware.
In your case it would probably be better to SBF your phone to 2.4.29 or 2.4.330, and follow the instructions in the band unlock thread to get you to Gingerbread with band unlock.

Gasai Yuno said:
1. Sure seems like it. You wouldn't be able to use the T-Mobile SIM at all otherwise.
2. T-Mobile uses 1700MHz. The D2G does not support 1700MHz. Period.
3. Yes.
4. 2.4.330 is stock Motorola Froyo firmware.
In your case it would probably be better to SBF your phone to 2.4.29 or 2.4.330, and follow the instructions in the band unlock thread to get you to Gingerbread with band unlock.
Click to expand...
Click to collapse
I would be very careful with doing an SBF to an unlocked phone. An SBF would rewrite the radio firmware and very likely undo the unlocking that's in place.
The only way that it would be safe to do so is if he still had the unlock code, then he could just re-unlock and re-apply the band unlocker after SBF'ing.

Thanks for the replies. So I guess i'm looking at switching carriers at some point for the 3g. Honestly the 2g isn't that bad though. Plus I heard that since att failed to acquire tmobile, they ended up cutting some deal to share some att tech with tmobile. So some areas will get 1900 mhz 3g at some point. Probably won't happen to me but oh well.
As for the rom, I don't think I want to update just yet. I have no unlock code since it came that way already.
If I get a code though, since it's already unlocked and rooted (i'm assuming),
Do I just toss the sbf file on an sdcard and run the update? I've installed roms on my old G1 but I don't know the exact process on the D2G yet.

benjmiester said:
If I get a code though, since it's already unlocked and rooted (i'm assuming)
Do I just toss the sbf file on an sdcard and run the update? I've installed roms on my old G1 but I don't know the exact process on the D2G yet.
Click to expand...
Click to collapse
SBF files are something else completely. SBF files contain images for every aspect of the phone, from Radios, to the operating system, kernel, and more. Think of an SBF file as a Windows CD. It helps to wipe the entire system clean and installs everything factory fresh.
SBF files reside on your hard drive, and they are flashed to the phone with a Windows app called RSD Lite. The current version is 5.6. There are links to it everywhere around the forums.

projektorboy said:
I would be very careful with doing an SBF to an unlocked phone. An SBF would rewrite the radio firmware and very likely undo the unlocking that's in place.
The only way that it would be safe to do so is if he still had the unlock code, then he could just re-unlock and re-apply the band unlocker after SBF'ing.
Click to expand...
Click to collapse
Not sure if you read my post at all.
I stated that the safest bet is to perform everything from the start, including the band unlock process.
Why the hell would someone need the unlock code at all on a device that was already SIM unlocked?
I bought my phone off eBay, unlocked, and I have no SIM unlock code stored anywhere. I SBF'd it at least 20 times by now.

Gasai Yuno said:
Not sure if you read my post at all.
I stated that the safest bet is to perform everything from the start, including the band unlock process.
Why the hell would someone need the unlock code at all on a device that was already SIM unlocked?
I bought my phone off eBay, unlocked, and I have no SIM unlock code stored anywhere. I SBF'd it at least 20 times by now.
Click to expand...
Click to collapse
Well in this case, this is good knowledge to have. I presumed that an SBF would essentially erase a SIM Unlock because it rewrites essentially every bit of data stored in the phone.
Looks like there's something else going on in these phones when they get SIM unlocked. It's nice to know that SIM unlocks are truly permanent.

I am getting a prompt now for the new OTA update. Will this be safe to do in my phone's current state then? I just keep putting it off for now because I don't want to lose any of the sim unlock or my data ability.
I know it doesn't do much, but I think it might help my battery life which drains 90% every day with only very light use and only 2g data.
It appears that I am going to be stuck on tmobile until 2013 but I can probably deal, or trade it... So I want it to be the best it can be without being fast on data obviously.

SIM lock state doesn't change.
If you're on T-Mobile USA, you definitely have the US band unlock hack performed and if you update you will lose it with no way to rollback to 2.4.x baseband.
90% battery spent per day is normal for Froyo. I get 26 to 32 hours with light use on 3G with WiFi and GPS enabled on stock 4.5.608, used to get 16 hours on 2.4.330.

Hmm, well can I flash the new one. I was reading this earlier:
http://forum.xda-developers.com/showthread.php?t=1437177
Would that do the trick?
Otherwise, is there a way to stop it from promting me from updating?

If you flash the 4.5.608 SBF image, you'll lose your US band unlock.
To disable OTA:
Rename /system/app/BlurUpdater_VZW.apk, /system/app/BlurUpdater_VZW.odex, and /system/etc/security/otacerts.zip by adding .bak to their names (e.g. otacerts.zip.bak).

Ok, I will rename those for now. I was using Astro and it said permissions no allowing me to rename so so I am going to try another browser app.
So is there nothing I can do to get this update done and get back on tmobileusa? There's a way to band unlock it again isn't there?

How many times needs one to repeat that
USA GSM BAND UNLOCK IS ONLY SUPPORTED ON THE BASEBAND FIRMWARE THAT COMES WITH 2.4.29 AND 2.4.330 FIRMWARE
?

Well that's retarded, thanks motorola/verizon for steering me away from ever purchasing one of you phones again. Looks like I will be trading or selling my phone after all. I had an offer to trade for a samsung vibrant which can be flashed to gingerbread and has a bigger, nicer looking amoled screen that I think I will go ahead and do that. Way to screw up your customer base motorola. I USED to like you guys.

Did you mean: “OMG I'm a US GSM user and I wanted to use a Motorola CDMA handset made exclusively for Verizon on my GSM network and Motorola are such jerks because they won't let me”?

Gasai Yuno said:
Did you mean: “OMG I'm a US GSM user and I wanted to use a Motorola CDMA handset made exclusively for Verizon on my GSM network and Motorola are such jerks because they won't let me”?
Click to expand...
Click to collapse
Seriously. I have no idea why he's being such a big baby about this. The phone was designed to Verizon's specifications by Motorola. It was designed to not work with Tmo/ATT from the very start. This was known by everyone at the time of the phone's release.
We were lucky in the first place to even get the ATT/Tmo hack. If someone isn't willing to put in the work to accommodate the requirements of the hack then this phone isn't for you.

projektorboy said:
Seriously. I have no idea why he's being such a big baby about this. The phone was designed to Verizon's specifications by Motorola. It was designed to not work with Tmo/ATT from the very start. This was known by everyone at the time of the phone's release.
We were lucky in the first place to even get the ATT/Tmo hack. If someone isn't willing to put in the work to accommodate the requirements of the hack then this phone isn't for you.
Click to expand...
Click to collapse
I'm not, man. I already know why this is and have known since about 5 posts ago. BTW I bought this phone off of ebay a month ago and it was 'listed as unlocked for att&t, tmobile etc' WTF am I supposed to think when I read that? Stop projecting your in-depth knowledge onto all people like it's 'common' knowledge. It's not. That's like saying I should know Obama's favorite food or whatever the hell else for example. I don't know that nor do the vast vast vast majority of people. You know who does know that? Somebody who looked it up!
The only way somebody would know that this phone is locked out of tmob's 3g is by looking that up specifically. I would like to point out that I had the phone for at least a week prior to posting at all, all the while reading up on how to get my 3g before the kind folks on the 1st page answered the final question I had about that (which is the only way I know that now). So it took at least a week of researching to discover this.... We should really close and lock this thread since it's just wasting space with my displeasure about this phone purchase. $5 says this whole ordeal is the very reason the guy was selling the phone in the first place!! (He said he was currently using it on tmobile when I asked if it was unlocked for tmob...)

[Q] T-Mobile Samsung Galaxy S 4G on AT&T Network..

I gave my old Samsung Galaxy S 4G phone that I had on T-Mobile to my girlfriend and unlocked it through t-mobile to be able to use it on her AT&T network. She placed her AT&T sim card in the phone and I unlocked it. The phone works fine but it will not go past "Edge" speed, is this due to the different network frequencies or is there anything else there can be done so she can get 3g at least? Would I have to Root the phone to be able to do so or is there any other easier ways to go about it? Thanks in advance for your help.

MeetGameteXY said:
The phone works fine but it will not go past "Edge" speed, is this due to the different network frequencies or is there anything else there can be done so she can get 3g at least? Would I have to Root the phone to be able to do so or is there any other easier ways to go about it? Thanks in advance for your help.
Click to expand...
Click to collapse
I switched to AT&T to get the HTC One X, but I hated that phone (but it had a nice camera), so I got the AT&T Galaxy Note.
I unlocked my SGS4G so I could use it on AT&T to test radio changes, but also I noticed that I only got edge. If I go outside on a really sunny day sometimes I see it get hspa, but I don't think t-mobile phones can get 4G on AT&T's network.
I would expect at most getting edge. The ONE time I did see the phone go to hspa, I still didn't see xfer rates increase. It was slow as hell.
I think the answer is finding the right modem.bin. Our radio device is a little different then the other galaxy s phones, and most of the ones that use this same modem are on t-mobile. I'm hoping to find another phone that uses the same modem on at&t.

What he ^^ said

What he ^^ said

yea, I know... old thead is old.
bhundven said:
I switched to AT&T to get the HTC One X, but I hated that phone (but it had a nice camera), so I got the AT&T Galaxy Note.
I unlocked my SGS4G so I could use it on AT&T to test radio changes, but also I noticed that I only got edge. If I go outside on a really sunny day sometimes I see it get hspa, but I don't think t-mobile phones can get 4G on AT&T's network.
I would expect at most getting edge. The ONE time I did see the phone go to hspa, I still didn't see xfer rates increase. It was slow as hell.
I think the answer is finding the right modem.bin. Our radio device is a little different then the other galaxy s phones, and most of the ones that use this same modem are on t-mobile. I'm hoping to find another phone that uses the same modem on at&t.
Click to expand...
Click to collapse
Actually, I was wrong. I was hitting the same stupid build prop thing where you're only on hspa if you're using data. If not it bumps you down to 3g.
AT&T works fine on this device.

AT&T on T-Mo Galaxy S 4G
bhundven said:
Actually, I was wrong. I was hitting the same stupid build prop thing where you're only on hspa if you're using data. If not it bumps you down to 3g.
AT&T works fine on this device.
Click to expand...
Click to collapse
Yeah, I just recently moved to AT&T bringing this phone. It shows a 3g status but seems to be as fast as it was on T-Mo but depending on the location. My wife has the same device on T-Mo and we drove from Chicago to Florida finding that usually one of us had a signal.
The visual voicemail isn't available from AT&T on this phone but the basic v/m works

I need help on unlocking my SGS4G for AT&T. Every time I try the app method, it either returns the code as "null" or has some busybox error. And the hexcode method doesn't work because mobile terminal can't find the file on my phone. I am running Beanstalk 4.4 ROM, and it is rooted. How can I unlock it?

Jay_P11 said:
I need help on unlocking my SGS4G for AT&T. Every time I try the app method, it either returns the code as "null" or has some busybox error. And the hexcode method doesn't work because mobile terminal can't find the file on my phone. I am running Beanstalk 4.4 ROM, and it is rooted. How can I unlock it?
Click to expand...
Click to collapse
Try going back to BML and unlocking there as the methods that you'll find on this forum are more reliable that way.
This is one of the free methods I have:
http://forum.xda-developers.com/showthread.php?t=1419468
If you still can't get it to work, I do have a paid app on Google Play that can work for you:
http://forum.xda-developers.com/showthread.php?t=2243585

FBis251 said:
Try going back to BML and unlocking there as the methods that you'll find on this forum are more reliable that way.
This is one of the free methods I have:
http://forum.xda-developers.com/showthread.php?t=1419468
If you still can't get it to work, I do have a paid app on Google Play that can work for you:
http://forum.xda-developers.com/showthread.php?t=2243585
Click to expand...
Click to collapse
It is on BML, I'll try those methods but if they don't work I'll probably have to flash back to stock, root, and then unlock it.

Bml= stock...

champ1919 said:
Bml= stock...
Click to expand...
Click to collapse
I've read countless posts on here saying that was just a kernel... Thanks for the correction

@champ1919 is correct, BML refers to stock touchwiz roms. I recommended that because although I don't own this phone anymore, I wrote the unlock script a while back and I know it works fine on stock roms if you install busybox from google play, after rooting the phone.
Once your phone is unlocked, any newer roms you install will keep the unlock and if you decide to go back to stock after THAT, your phone will still remain unlocked.

FBis251 said:
@champ1919 is correct, BML refers to stock touchwiz roms. I recommended that because although I don't own this phone anymore, I wrote the unlock script a while back and I know it works fine on stock roms if you install busybox from google play, after rooting the phone.
Once your phone is unlocked, any newer roms you install will keep the unlock and if you decide to go back to stock after THAT, your phone will still remain unlocked.
Click to expand...
Click to collapse
This seems like the most sure fire way of going about this, I haven't had time to do it yet but I think I'll go with stock then unlock.

(Q) Is My HTC Inspire Unlocked?

Hey all, sorry for the noob question, I have always unlocked Motorola phones in the past, because at my work, ATT doesnt get signal (My provider), but when I unlocked my Motorola phones, then I would get great signal from T-Mobile, and Cell One.
Well now I got this HTC Inspire, rooted it with the Ace Hack Kit (S-off, and all that), got CM7 on it.
BUT at work, I scan for signal, and all it shows is AT&T (Which doesn't get barely any signal at work). So why doesn't it find T-Mobile or another provider which has signal there?
Also I noticed my dad's iPhone does the same thing, even though his is factory unlocked, it won't use any towers besides AT&T. That really sucks IMO, because I always unlocked them, to get my full potential siginal..
Anyways if anyone could answer this, I'd greatly appreciate it. I could stick in another sim to make sure it's unlocked, but I'd have to buy one on ebay, and then I read all over that the Ace kit unlocks it, so I'm like wtf..

EliteGeek91 said:
Hey all, sorry for the noob question, I have always unlocked Motorola phones in the past, because at my work, ATT doesnt get signal (My provider), but when I unlocked my Motorola phones, then I would get great signal from T-Mobile, and Cell One.
Well now I got this HTC Inspire, rooted it with the Ace Hack Kit (S-off, and all that), got CM7 on it.
BUT at work, I scan for signal, and all it shows is AT&T (Which doesn't get barely any signal at work). So why doesn't it find T-Mobile or another provider which has signal there?
Also I noticed my dad's iPhone does the same thing, even though his is factory unlocked, it won't use any towers besides AT&T. That really sucks IMO, because I always unlocked them, to get my full potential siginal..
Anyways if anyone could answer this, I'd greatly appreciate it. I could stick in another sim to make sure it's unlocked, but I'd have to buy one on ebay, and then I read all over that the Ace kit unlocks it, so I'm like wtf..
Click to expand...
Click to collapse
Enter the correct apns for t mobile or flash a ROM that has T-Mobile carrier options.
As for the iPhone I couldn't tell ya
Sent from my Inspire 4G using xda premium

If you used Ace Hack Kit, then your phone is probably unlocked. Whose is your carrier?

For the iPhone, when you say factory unlocked, do you mean AT&T unlocked it. I don't know that any iPhones come unlocked from the factory. When AT&T unlocks a phone (or gives you an unlock code) I think it will only use a non-AT&T signal if AT&T isn't available, i.e. in another country.

pazzo02 said:
For the iPhone, when you say factory unlocked, do you mean AT&T unlocked it. I don't know that any iPhones come unlocked from the factory. When AT&T unlocks a phone (or gives you an unlock code) I think it will only use a non-AT&T signal if AT&T isn't available, i.e. in another country.
Click to expand...
Click to collapse
Thanks all, and yes his iPhone is factory direct unlocked.. Bought straight from Apple.
Anyways, thanks. I will manually enter the T-Mobile APN and see what that does..

Flashing international on T-mobile downside?

So I just got my 7 Pro a few days ago from Tmobile and so far its working great! I saw the guys over at XDA were able to get the software so I can flash the international firmware on my phone so I can start getting updates when One plus drops them instead of waiting for tmobile. Is there any downfall to this? Will I loose out on any features from Tmobile? I am currently using a cell spot, would that still work? And for the last question will I be able to revert back to the tmobile firmware if I decide to trade in my phone? Thanks for the insight!

waternut13134 said:
So I just got my 7 Pro a few days ago from Tmobile and so far its working great! I saw the guys over at XDA were able to get the software so I can flash the international firmware on my phone so I can start getting updates when One plus drops them instead of waiting for tmobile. Is there any downfall to this? Will I loose out on any features from Tmobile? I am currently using a cell spot, would that still work? And for the last question will I be able to revert back to the tmobile firmware if I decide to trade in my phone? Thanks for the insight!
Click to expand...
Click to collapse
From what I understand, Wi-Fi calling won't be as quick switching back and forth, you will absolutely lose RCS UP and the video dialer. I'm assuming you have the 4G LTE CellSpot V2, that will still work just fine. And the dev that posted the MSM to switch back and forth has demonstrated that there is a path back to the T-Mobile firmware. AFAIK, as long as you don't root the phone you should be good to go with a JUMP or JOD trade in in the future on the international firmware, but it's always best to have the path backwards just in case.

Generally the downsides are not very noticeable. "losing" RCS isn't bad considering no one really uses it still. Also even if you root your phone, it's not a problem with JOD or JUMP. But really, if you don't plan to root and take advantage of those perks, and you're satisfied with your current vanilla tmobile experience, it wouldn't really be worth your time. You're free to do what you want without any permanent damage probably.

RCS is actually the deal breaker for me lol. This is my first TMobile phone and being able to use RCS with my buddy i actually get to share videos with is great. The only reason I wanted to flash is to get the updates faster.

Samsung galaxy 2 fold at&t Change Carrier

Hi
Have Samsung galaxy 2 fold at&t unlock
Can I change Carrier from att to t-mobile I flashing T-Mobile firmware or can I just Flash csc??

if your phone is sim-unlocked, once you insert a t-mobile simcard it will change the phone to t-mobile. no need to flash anything.

Stalix said:
if your phone is sim-unlocked, once you insert a t-mobile simcard it will change the phone to t-mobile. no need to flash anything.
Click to expand...
Click to collapse
Yes, it works for making phone calls, texts, even 5g. But you won't get OTA updates. At least that's what I was told. I'm typing from a purchased AT&T unlocked Fold 2, with a TMobile sim inside. It works fine, just no updates. Still on One UI 2.5, and android 10. I'm actually here hoping to change this by flashing a TMobile rom. I did a little research last night, and it seems a little scary with the danger of bricking the phone. Back in the PPC hayday of flashing roms, I was all over it. I even flashed a few roms on my s6 years ago, so I have some experience with Odin, but it still seems nerve wracking because I can't return this phone if I brick it. Bought it used.

vinscuzzy said:
Yes, it works for making phone calls, texts, even 5g. But you won't get OTA updates. At least that's what I was told. I'm typing from a purchased AT&T unlocked Fold 2, with a TMobile sim inside. It works fine, just no updates. Still on One UI 2.5, and android 10. I'm actually here hoping to change this by flashing a TMobile rom. I did a little research last night, and it seems a little scary with the danger of bricking the phone. Back in the PPC hayday of flashing roms, I was all over it. I even flashed a few roms on my s6 years ago, so I have some experience with Odin, but it still seems nerve wracking because I can't return this phone if I brick it. Bought it used.
Click to expand...
Click to collapse
@vinscuzzy I feel you because I understand what you're going through. I used to flash my devices back in the day. I haven't flashed or rooted in a long time but like you, I also have an unlocked AT&T branded Z Fold2. It seems easy enough. Any reason why you would install the T-Mobile firmware rather than the U1 Unlocked version?

HoOnZ said:
@vinscuzzy Any reason why you would install the T-Mobile firmware rather than the U1 Unlocked version?
Click to expand...
Click to collapse
Theoretically I would think the unlocked version would be better because when theres an update, I'm guessing, we wouldn't have to wait for the carriers to do their stuff to it. But I'm not 100% sure if that's how it works anymore. The last truly unlocked phone I had was a Nokia 1520.3, with windows mobile, and it was great, BUT if I remember correctly I had trouble with wifi calling, visual voicemail, and tethering. I actually asked @zimgir124 the same thing in the other thread about which one is more beneficial, but haven't heard back yet.

Well, I just found another thread on how we can go back to AT&T in case we need to.

If it's running well now I would not be concerned with updates. You could well end up with a less functional device by updating.