Would it be a problem using the AT&T branded SGH-I337 sim-unlocked phone with the T-Mobile SIM card here in the States?
I was told at T-Mobile store today that the voice calls and SMSs should be no problem, but mobile internet would be a big issue.
I don't know whether it's worth or even possible to reflash the phone with T-Moblie firmware.
The reason being I have 1 bar or signal at home (or even less when it rains), regular phone with international SIM card does not even pick up ATT - T-M only...
They gave me free ATT 3G MicroCell - got the full bar but in the weak areas other party still hears mostly distortion.
no,it be a problem, i bought my GF a T-Mobile unlocked S4 model M919 and she uses it on LTE here in canada all the time. Rogers and ATT have very similar networks so NO, it would def not be a problem
Everything will work. However data will only be 2G while you are on t-mobile
jeffrey1027 said:
Everything will work. However data will only be 2G while you are on t-mobile
Click to expand...
Click to collapse
Would it be slower?
I'm currently using my I337 on t-mobile. Have no issues with anything, getting LTE data also
Sent from my SGH-M919 using xda premium
You need a few things to unlock all the bands for full coverage on T-Mobile.
Sent from my SPH-D710 using xda premium
I get 2g/3g/HSPA+ and LTE all great on my AT&T Galaxy S4 with T-Mobile SIM. Running Cyanogenmod 10.1 nightlies
graydiggy said:
You need a few things to unlock all the bands for full coverage on T-Mobile.
Click to expand...
Click to collapse
What are the things you need to do? Thanks. Trying to do this now.
It will work regardless. But if you want to make it pick up all of tmobiles bands you need to unlock aws.. I did it yesterday. Worked fine without it but works way better with it... Didn't take long and was easy. Just follow the steps
FYI you Dont need tmobiles firmware. You just need your phones frequency's unlocked so its more compatible to T-Mobile. Att uses 1900 frequency and T-Mobile uses 1700, 1900 and 2200 I believe. Atts phone dont have the other frequencies unlocked without you doing it
http://forum.xda-developers.com/showthread.php?t=2291589
Lol just realized I answered your question in the q and a section about this like an hour ago. Go look at your post
Sent from my SGH-I337 using Tapatalk 4
Related
I have been reading the unlocking / voice calling threads about the galaxy tab and they are really informative. However, with the thread growing so long and so many different carriers being discussed, I lose track of which version is doing what.
So, since I am buying one today, I would really like to know which carrier would be the best to unlock here in the US. Should I buy the AT&T or T-Mobile vesrion? Does unlocking or flashing one or the other provide better use or functionality than the other?
What are your thoughts?
Thanks,
JT
^from what i have read on here the tmo version is not compatible at the moment with the unlocks;
hence the at&t version is best in usa; and the bell canada version in CDA..
enjoy!
i would go with att because it will be compatible with Euro 3G frequencies also you will be able to hack to get phone calls AND 3g. I believe Tmobile is only getting voice and edge at the moment...
Why are the Verizon and Sprint models left behind?
Sent from my SPH-P100 using XDA App
AlpineM3 said:
Why are the Verizon and Sprint models left behind?
Sent from my SPH-P100 using XDA App
Click to expand...
Click to collapse
Because they are obviously more difficult to unlock and are probably less compatible with any other countries network. Almost every carrier worldwide uses GSM, sim cards. So version nor sprint wouldnt be a good choice since they don't use sim cards.
Sent from my GT-P1000 using Tapatalk
Would a tmobile tab work in europe or asia?
gigadigit said:
Would a tmobile tab work in europe or asia?
Click to expand...
Click to collapse
Yes if u unlock it but you wont get 3G
Sent from my GT-P1000 using Tapatalk
ayman07 said:
Yes if u unlock it but you wont get 3G
Sent from my GT-P1000 using Tapatalk
Click to expand...
Click to collapse
Yes you would! A TMo Tab still supports regular 2100MHz UMTS.
Regards,
Dave
jtorral said:
I have been reading the unlocking / voice calling threads about the galaxy tab and they are really informative. However, with the thread growing so long and so many different carriers being discussed, I lose track of which version is doing what.
So, since I am buying one today, I would really like to know which carrier would be the best to unlock here in the US. Should I buy the AT&T or T-Mobile vesrion? Does unlocking or flashing one or the other provide better use or functionality than the other?
What are your thoughts?
Thanks,
JT
Click to expand...
Click to collapse
1. Both at&t and tmobiles tabs can be easily carrier (network) unlocked. Verizon and Sprint are CDMA and will not work in Europe. Also I am not sure that anybody knows how to switch these tabs from one carrier to another.
2. Another story about getting voice and 3G in the US. So far the best case for using tmobile phone sim presents at&t tab. Tmobile does not recognize this tab and their broadband device and allows for voice calling.
I could have voice and EDGE on tmobile using at&t tab with flashed EUR firmware and bell modem.
'I'm with Verizon's tab in SF, USA. Rooted with 4Zroot.
Using Droid X overclock application (market) on other extra features only.
GV & Skype (mod for 3G), can make calls & receives with both 3G (data plan $20-1Gb) & Wifi plane mode. I hope this helps.
Sent from my SCH-I800 using XDA App
Is it possible to root the Sprint version? Can you run custom roms?
Tethering with my Droid X is working too. I haven't done the recovery yet, waiting for stable version.
Sent from my SCH-I800 using XDA App
2. Another story about getting voice and 3G in the US. So far the best case for using tmobile phone sim presents at&t tab. Tmobile does not recognize this tab and their broadband device and allows for voice calling.
I could have voice and EDGE on tmobile using at&t tab with flashed EUR firmware and bell modem.[/QUOTE]
I am new to all this and just want to be 100% clear.
If I have a TMob Tab I have to use an ATT sim. If I have a ATT Tab I can use either ATT or Tmob sim.
If I use the ATT Tab with my current Iphone 3gs sim (unlimited everything) I will have full voice and 3g function?
If I use the Tmobile Tab with my ATT sim (unlimited everything) I will full voice and only 2g data?
Im sorry for asking such a simple question but I just want to be sure before I buy a Tab today.
Thank you all in advance.
Att and tmobile are using different frequencies thus 3G won't work if you are not using sim and tab from the same carrier. You can get only EDGE.
Att tab allows for voice and data when using t-mobile sim with voice and data plan.
I don't have knowledge of whether t-mobile allows the same with att sim.
T-mobile does not allow for voice and data when using their sim...
Adapt0r said:
Att and tmobile are using different frequencies thus 3G won't work if you are not using sim and tab from the same carrier. You can get only EDGE.
Att tab allows for voice and data when using t-mobile sim with voice and data plan.
I don't have knowledge of whether t-mobile allows the same with att sim.
T-mobile does not allow for voice and data when using their sim...
Click to expand...
Click to collapse
Thanks, that cleared it up for me.
I'd be happy with a TMob tab that had voice and Edge at this point. I'm almost always in WiFi anyway.
I picked up a Tmob tab today, if things dont look up soon I will return it and get the ATT.
So far it looks like the Tmobile S4 has LTE/HSPA+ support for AT&T, and no real signs of a locked bootloader. Anyone else plan on buying that version and unlocking it if the bootloader is in fact unlocked?
Does anyone know of any apps that would test the LTE/HSPA+ bands the phone is capable of? I want to go into a Tmobile and use a test unit to see if I can get service with my LTE AT&T SIM.
https://explore.t-mobile.com/samsung-galaxy-s4
Edit: Well, it looks like I'll be getting the Tmobile variant unsubsidized and use it on AT&T. Tmobile will unlock the phone if you pay the total cost up front. I just need to find a replacement back cover to rid myself of the stupid Tmobile logo on the back... lol.
xxhorseriderxxx said:
So far it looks like the Tmobile S4 has LTE/HSPA+ support for AT&T, and no real signs of a locked bootloader. Anyone else plan on buying that version and unlocking it if the bootloader is in fact unlocked?
Does anyone know of any apps that would test the LTE/HSPA+ bands the phone is capable of? I want to go into a Tmobile and use a test unit to see if I can get service with my LTE AT&T SIM.
https://explore.t-mobile.com/samsung-galaxy-s4
Click to expand...
Click to collapse
If I had the money to buy the S4 outright for full price, I would just get an i9505.
EDIT: Spoke too soon. The i9505 doesn't support AT&T's LTE bands.
Can you post info on the source? I was also curious about this but i was thinking if we changed the radios like they did in the past that maybe we could get something working?
XsMagical said:
Can you post info on the source? I was also curious about this but i was thinking if we changed the radios like they did in the past that maybe we could get something working?
Click to expand...
Click to collapse
I put the info in the OP that I have so far; the LTE/3G radios are reported to support all of AT&T's bands. The bootloader, I'm going off of a guess since I don't think that Tmobile could afford to bribe Samsung to lock their bootloaders for them.
HMM, ok thanks for the info so far. I might have to go out and pick one up and test it.
Looks like the T-Mobile version has all the same bands and some extra ones added in. For instance the at&t only has lte bands 4&17. The tmobile version has LTE bands 1,2,4,5,7&17. Will T-Mobile unlock their phones for u??
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
I dnot know t mobile has att lte but i am using att phone with t mobile sim in it and i am getting 12-15 Mbps speed.
http://forum.xda-developers.com/showpost.php?p=40888195&postcount=46
T-Mobile:
HSPA+ Bands: I (UMTS 2100), II (1900), IV (1700/2100/AWS), V (850)
LTE Bands: Band 1 (2100), 2 (1900), 4 (1700/2100), 5(850), 7 (2600) & 17
GSM Bands: 850, 900, 1800, 1900
Rogers - Applies for Bell and Telus:
GSM Bands:850/900/1800/1900
HSPA+/HSPA Bands:850/1900/2100
LTE Bands:2100/2600
AT&T:
4G-LTE Band 4 and 17
3G - UMTS 850/1900/2100MHz
GSM/GPRS/EDGE 850/900/1800/1900MHz
T-Mobile Bootloader Locked or Unlocked ?
xxhorseriderxxx said:
So far it looks like the Tmobile S4 has LTE/HSPA+ support for AT&T, and no real signs of a locked bootloader. Anyone else plan on buying that version and unlocking it if the bootloader is in fact unlocked?
Does anyone know of any apps that would test the LTE/HSPA+ bands the phone is capable of? I want to go into a Tmobile and use a test unit to see if I can get service with my LTE AT&T SIM.
https://explore.t-mobile.com/samsung-galaxy-s4
Click to expand...
Click to collapse
I'm feeling like a newbie today cause I have my new T-Mobile Galaxy S4 in front of me & still playing with new features after 3 hours.
Tell me how to check to see if bootloader is unlocked and I'll do it.
Also trying to remember where we go to unlock the developer tools. Only remember that it must be clicked 7 times?
Just remembered, Settings.About Device>Build Number <Click Build Number 7 times, back out and Developer options magically appears.
Now i can go into it and toggle USB debugging. Now I only feel 95% newbie.
Glenn
So .. How do I get TMoble 4G on my HTC One X
What do I have to do get off Edge and onto Tmobile 3g/4g. I have the unlocked HTC One X ... What apps are there, and what steps needs to be followed.
trvlpoet said:
What do I have to do get off Edge and onto Tmobile 3g/4g. I have the unlocked HTC One X ... What apps are there, and what steps needs to be followed.
Click to expand...
Click to collapse
Do you realize you are in the S4 forum?
weltwon said:
I'm feeling like a newbie today cause I have my new T-Mobile Galaxy S4 in front of me & still playing with new features after 3 hours.
Tell me how to check to see if bootloader is unlocked and I'll do it.
Also trying to remember where we go to unlock the developer tools. Only remember that it must be clicked 7 times?
Just remembered, Settings.About Device>Build Number <Click Build Number 7 times, back out and Developer options magically appears.
Now i can go into it and toggle USB debugging. Now I only feel 95% newbie.
Glenn
Click to expand...
Click to collapse
you don't have to worry about checking the bootloader, it has already been confirmed to be unlocked
http://forum.xda-developers.com/showthread.php?t=2258476
I love this thread, i cant wait to get the Tmo version of the S4 and return this locked down model.
Stroked from my Dirty Nocturnal'd Galaxy S4
scott14719 said:
Do you realize you are in the S4 forum?
Click to expand...
Click to collapse
Oh ... thanx... fustration!!!!
Has anybody tried their T-Mobile phone on AT&T yet?
If so, I have a couple of questions.
1. Can you use the T-Mobile phone to wireless tether (become a wifi hotspot) on AT&T's network? The AT&T version can be used to tether (with a simple hack). I was just wondering if a different .APK would be needed to do the same with the T-Mobile phone on AT&T's network or if the T-Mobile phone already has an APK installed that works on AT&T's network?
2. I realize an existing AT&T sim card can just simply be placed into the sim unlocked T-Mobile phone for it to work, but how would I go about changing the imei and other phone info that AT&T has in their system about the phone? In other words, would AT&T cause problems with anyone using a T-Mobile phone on their network even if the person paid full price for the phone and it is unlocked? Would it be better to have them change the system information at a store versus over the telephone?
3. It is reported that the T-Mobile phone works fine on AT&T's LTE network, has anyone verified this and does the phone show LTE when on AT&T's LTE network?
Thank you for any replies. Hopefully this information can help people decide if they want to buy the T-Mobile S4 to use on AT&T or not.
scott14719 said:
Has anybody tried their T-Mobile phone on AT&T yet?
If so, I have a couple of questions.
1. Can you use the T-Mobile phone to wireless tether (become a wifi hotspot) on AT&T's network? The AT&T version can be used to tether (with a simple hack). I was just wondering if a different .APK would be needed to do the same with the T-Mobile phone on AT&T's network or if the T-Mobile phone already has an APK installed that works on AT&T's network?
2. I realize an existing AT&T sim card can just simply be placed into the sim unlocked T-Mobile phone for it to work, but how would I go about changing the imei and other phone info that AT&T has in their system about the phone? In other words, would AT&T cause problems with anyone using a T-Mobile phone on their network even if the person paid full price for the phone and it is unlocked? Would it be better to have them change the system information at a store versus over the telephone?
3. It is reported that the T-Mobile phone works fine on AT&T's LTE network, has anyone verified this and does the phone show LTE when on AT&T's LTE network?
Thank you for any replies. Hopefully this information can help people decide if they want to buy the T-Mobile S4 to use on AT&T or not.
Click to expand...
Click to collapse
You can, for now, use PDAnet for tethering.
As far as changing the phone to appear as "unknown" to AT&T's system, don't do it without a backup of your /efs folder. I don't recommend doing it either because it's not really worth changing things around to hide that you're on a Tmobile phone, because for the most part, they don't care as long as you're paying them your monthly bill. I personally know a friend who has used her unlocked HTC Amaze on AT&T without issue (she was stuck to 2G speeds). The only way for you to have an "unknown" phone on your account is to use an international model phone such as the HTC one or the i9500 (unconfirmed that the i9300/i9500 model is entered into AT&T's system, I only hèard a rumour that AT&T has the IMEI of those phones in its system). My i9100 currently shows up as "unknown" in my bill statement.
I took a screenshot, but I don't have a link of the LTE working conformation (attached). I won't be getting my phone until I am on holiday in New Hampshire so that I can avoid the sales tax on purchasing the Tmobile variant. I would ask my parents to buy it for me, and I send them the money, but they have no technological skills whatsoëver close to asking/knowing what to ask for at the Tmobile store. Sorry guys, lol.
my t mobile m919 stock mdl rooted..tetheting works out of the box SN at&t and on their system it doesn't know what kind of phone I have...
Sent from my SGS 4
Yesterday I tried to switch to iWireless (a Tmobile Affiliate in Iowa) and to my surprise I was getting Edge connection from them on my unlocked ATT Galaxy S4!
I was aware about ATT iPhone working on edge speed if we use under tmobile but samsung too?
I tried the free method available on this forum to unlock the phone. Should I request a full unlock from ATT or this is (edge speed on iWireless-Tmobile) what I should be expecting even though I get full unlock from ATT (if the method I used is not unlocking the phone fully).
raone26 said:
Yesterday I tried to switch to iWireless (a Tmobile Affiliate in Iowa) and to my surprise I was getting Edge connection from them on my unlocked ATT Galaxy S4!
I was aware about ATT iPhone working on edge speed if we use under tmobile but samsung too?
I tried the free method available on this forum to unlock the phone. Should I request a full unlock from ATT or this is (edge speed on iWireless-Tmobile) what I should be expecting even though I get full unlock from ATT (if the method I used is not unlocking the phone fully).
Click to expand...
Click to collapse
Are you sure you have 4g in your area? I have same setup and certain places even blocks difference only gets hspa.
Airtioteclint said:
Are you sure you have 4g in your area? I have same setup and certain places even blocks difference only gets hspa.
Click to expand...
Click to collapse
Yes, I tried that sim card on my tmobile galaxy s3 and it was showing 4g (~4-5 Mbps speed)..
raone26 said:
Yes, I tried that sim card on my tmobile galaxy s3 and it was showing 4g (~4-5 Mbps speed)..
Click to expand...
Click to collapse
Unfortunately, for 4G, iWireless uses the AWS Spectrum (1700/2100) which the Galaxy S4 doesn't support. Even the T-Mobile version doesn't due to the switch to the 1900 frequency.
Next time if you want 4G on your phone, look at the Tech Specs and make sure under UMTS it says 1700/2100. If you want 4G, your phone HAS to support that frequency.
http://forum.xda-developers.com/showthread.php?p=41738642
Try this
electro` said:
Unfortunately, for 4G, iWireless uses the AWS Spectrum (1700/2100) which the Galaxy S4 doesn't support. Even the T-Mobile version doesn't due to the switch to the 1900 frequency.
Next time if you want 4G on your phone, look at the Tech Specs and make sure under UMTS it says 1700/2100. If you want 4G, your phone HAS to support that frequency.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=41738642
So I guess what jd1639 suggested in above lunk will not work based on what you are saying? Because if the hardware doesn't support then unabaling it wont work.
Any comments please.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
raone26 said:
http://forum.xda-developers.com/showthread.php?p=41738642
So I guess what jd1639 suggested in above lunk will not work based on what you are saying? Because if the hardware doesn't support then unabaling it wont work.
Any comments please.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
I don't know, I haven't seen that. I guess you can try it at your own risk.
I have iWireless, and just wondering what your location is. ;P
Unless tmobile has re done the towers in ur area ull have to unlock the the baseband im assuming u only get edge
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
electro` said:
Unfortunately, for 4G, iWireless uses the AWS Spectrum (1700/2100) which the Galaxy S4 doesn't support. Even the T-Mobile version doesn't due to the switch to the 1900 frequency.
Next time if you want 4G on your phone, look at the Tech Specs and make sure under UMTS it says 1700/2100. If you want 4G, your phone HAS to support that frequency.
Click to expand...
Click to collapse
If I'm not mistaken the MF3 update unlocks that freq. I'm pretty sure I saw in some release notes on either the MF3 or the one before that unlocked that.
agent929 said:
If I'm not mistaken the MF3 update unlocks that freq. I'm pretty sure I saw in some release notes on either the MF3 or the one before that unlocked that.
Click to expand...
Click to collapse
I have no idea, I don't have a GS4. I have a Galaxy Nexus.
Already.... This is resolved!!!
I tried unlocking all bands based on the link above and it was smooth. Bought new prepaid sim card from iWireless. And woila a nice 4G sign on status bar and the speed justified the sign
Thanks too all who took time reply. I really appreciate it!!
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
raone26 said:
Already.... This is resolved!!!
I tried unlocking all bands based on the link above and it was smooth. Bought new prepaid sim card from iWireless. And woila a nice 4G sign on status bar and the speed justified the sign
Thanks too all who took time reply. I really appreciate it!!
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Great! Enjoy your phone!
Assuming I unlock the att g2 will I be able to get data on it and call, same with the verizon g2. Id be using a local carrier whos gsm is 900. i need an answer asap
Should do.
Where are you going? As you might need to make sure the local area sim is the right frequency's. But I'm sure it will.
Im from uk and i have always thought they had non removable sim cards in verizon.
Sent from my LG-D802 using XDA Free mobile app
jonezy8873 said:
Should do.
Where are you going? As you might need to make sure the local area sim is the right frequency's. But I'm sure it will.
Im from uk and i have always thought they had non removable sim cards in verizon.
Sent from my LG-D802 using XDA Free mobile app
Click to expand...
Click to collapse
The gsm frequency there is 900, its lebanon btw. also latest verizon phones have sim cards. Im afraid if i get the att g2 then calling will work but internet ( 3g or h+ ) wont work because i checked on atts site if their lg g2 will work in lebanon and it only said that voice will work and data will not but this is on their network, not a local network so I have no idea. I know the att g2 works on a gsm 900 frequency but does voice and internet come from this frequency or does the phone use another type of frequency to get internet. Or am i good to go even if only the gsm is compatible.
Will TMO be bound by the same restrictions re 700mhz as Verizon? My Verizon sold N7 works just fine with my TMO unlimited phone sim (have tried it many times); I'm not sure whether that's related to the above or that T-Mobile just doesn't see it as a tablet. My AT&T Note 8 does not work but that also doesn't have that band.
bob60626 said:
Will TMO be bound by the same restrictions re 700mhz as Verizon? My Verizon sold N7 works just fine with my TMO unlimited phone sim (have tried it many times); I'm not sure whether that's related to the above or that T-Mobile just doesn't see it as a tablet. My AT&T Note 8 does not work but that also doesn't have that band.
Click to expand...
Click to collapse
I don't really understand the question. T-Mobile 700mhz LTE may may not be deployed in your area yet. I know Nyc and its neighbors wont get it until beginning of next year.
Sent from my SAMSUNG-SGH-I337 using XDA Free mobile app