[Q] Flasing T-Mobile roms on AT&T GS3, getprop error - T-Mobile, Samsung Galaxy SIII

I have a Galaxy S III from AT&T. I got it unlocked and activated on T-Mobile last month.
Now, I went a month on AT&T roms, but recently I flashed SlimBean, which is dual carrier. My phone immediately connected to LTE! Never had I seen LTE on TM's network on this phone before, so I take that to mean I need to run T-Mobile ROMs to get LTE service.
So just now I tried to flash BeanStalk for d2tmo, but it won't let me install it because, of course, it's not made for this phone. From what I have read, though, it should work fine on my phone. How do I override this failsafe so I can run T-Mobile roms on my AT&T gs3?

"You do this with 7-Zip/WinRAR
Note: DO NOT EXTRACT ROM!
Open the zip file, do not extract, go to:
/META-INF/com/google/android/updater-script
1)Open updater-script with a script editor such as notepad/notepad++ (makes things 10x easier), or gedit if you use linux
2)Delete the first line of code (all the way up to the first semicolon you see) and delete the first semi-colon as well
Do not go past the first semiclon when deleteing and DO NOT forget to delete the first semicolon."
Sent from my SGH-T999 using XDA Premium 4 mobile app

You'll want to delete the highlighted text in the updater-script, then save it. You shouldn't run into anymore problems or errors when flashing the ROM.
Sent from my SGH-T999 using XDA Premium 4 mobile app

And the Rom won't give you LTE. Most T999 roms will show 4g, but look in settings for your true connection. You probably had it all along.
Sent from my SCH-I535 using Tapatalk 4

DocHoliday77 said:
And the Rom won't give you LTE. Most T999 roms will show 4g, but look in settings for your true connection. You probably had it all along.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
Well I had LTE / GSM / WCDMA selected in the settings on CyanogenMod for the I747 and it wasn't connecting to LTE. Only HSPA+. So either it's the ROM, or T-Mobile launched their LTE network here at the same time I flashed SlimBean.

I'm running stock i747 and I get Lte all over Chicagoland. I'm rooted now, but I got it before I rooted too. I'm using the stock 4.1.1 that came with the phone, picked it up for $180 a few days ago...Wow this thing is awesome.
Thinking about going with Dandroid tomorrow...still deciding att or T-Mobile version.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

mrlamo said:
I'm running stock i747 and I get Lte all over Chicagoland. I'm rooted now, but I got it before I rooted too. I'm using the stock 4.1.1 that came with the phone, picked it up for $180 a few days ago...Wow this thing is awesome.
Thinking about going with Dandroid tomorrow...still deciding att or T-Mobile version.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
What are your APN settings?

danielhep said:
What are your APN settings?
Click to expand...
Click to collapse
Never changed any settings, except picking T-Mobile when it first booted with the T-Mobile SIM....I'll have to take a look at them later.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

mrlamo said:
Never changed any settings, except picking T-Mobile when it first booted with the T-Mobile SIM....I'll have to take a look at them later.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Please do let me know! When I was running the AT&T roms, I had "Simple Mobile", "StraightTalk", and "T-Mobile". I tested and all of them worked, but just connected to HSPA+.
Now that I've installed a T-Mobile rom I am also getting "Solavei" and "T-Mobile LTE." When I select T-Mobile LTE, my phone connects to the LTE network. When I have the regular T-Mobile option selected it doesn't connect to data at all.
EDIT: I am testing again, and I actually can connect to HSPA+ on the regular T-Mobile APN. Let me walk around and see if I can make it connect to LTE. Then I'm going to flash an AT&T rom and try to get it to connect to the LTE network by manually adding the APN. I'll let you know how it goes.
Can the APNs determine what type of network you connect to?
I'm just curious what APN settings you're using to connect to LTE on the AT&T rom.

Okay, here's another update as the result of some testing with my T-Mobile rom:
When I switch to the "T-Mobile US" (no LTE) APN, I noticed that my data cut in and out sort of randomly. I speculate that the reason for this is because it was trying to connect to the LTE network but couldn't get data on it because my APN was set incorrectly. This is what confused be before. I switched the data mode to GSM / WCDMA preferred and it immediately connected to data, and was consistent.
So I think if I just add the T-Mobile US LTE APN to an AT&T rom, it should connect to LTE properly?
A long time ago when I was just on the T-Mobile US APN on an AT&T rom, it was doing the same thing with being inconsistent with the data connection until I disabled LTE so it stopped trying to connect. I'll take the fact that it tried to connect but couldn't as enough evidence that it knows how, it just needs the APN.
Yay figuring things out! Sorry if my words are confusing or I maybe I should have made a new thread for this. I'm new here, and I'm not sure how this kind of things work.
Thanks for the help in figuring that out!
Sorry about the sidetrack, I'll work on getting 4.3 next, and let you know how that goes.

Here's what I've got
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Related

[Q] Can't connect using 3g at&t data, please help me!!

Hello everyone,
I just bought an unlocked t989 and try to use the 3g data with att ( i have the $50 unlimited all gophone) i already try the wap.cingular and the isp.cingular APNS but only get 3g icon and mms sending/receiving capability but can't connect to web, already try the *#*#.... code and select the 850 wcdma band, i don't know what can i do to get it working, when i connect on gsm only (edge) everythings works
please, any help is appreciated
thanks in advance
i have one of these for my gf who is on att im wondering how to get it working as well... any info will be appreciated. thanks!
I was going to do the same as well, until multiple managers of various AT&T stores that I went to all told me that prepaid data plans will ONLY work with AT&T's prepaid phones. In other words, even if you were to buy a AT&T Galaxy S2, and try to use it with their Prepaid GoPhone data plan, you still would not have any internet at all. Hope this helps!
shinigenEddy said:
I was going to do the same as well, until multiple managers of various AT&T stores that I went to all told me that prepaid data plans will ONLY work with AT&T's prepaid phones. In other words, even if you were to buy a AT&T Galaxy S2, and try to use it with their Prepaid GoPhone data plan, you still would not have any internet at all. Hope this helps!
Click to expand...
Click to collapse
This is wierd, i have a nokia e71 (bought it on ebay factory unlocked and it's configure itself for the carrier) and i can access internet on 3g on it. but on the t989 i can only acces edge, why's that?
i'm still thinking its a settings or something like that
Did you flash skyrocket modem ? I think you have to, are you using one apn for Internet and mms ?
Sent from my SGH-T989 using Tapatalk
amorek13 said:
Did you flash skyrocket modem ? I think you have to, are you using one apn for Internet and mms ?
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
no i didn't, and i'm using one apn for internet and mms, can i flash the skyrocket modem without changing the rom? im currently on stock 2.3.5
baseband t989ukvid
neftalica said:
This is wierd, i have a nokia e71 (bought it on ebay factory unlocked and it's configure itself for the carrier) and i can access internet on 3g on it. but on the t989 i can only acces edge, why's that?
i'm still thinking its a settings or something like that
Click to expand...
Click to collapse
Hmm, really? That's interesting. I personally have only tried it with a Sony phone myself which I put my prepaid go-phone sim card into, however it did not work. Im thinking this could be due to the fact that my sim card is really old and outdated, not too sure though.
If you can access edge on your T989 though, it should also be able to access the 3G network supposedly. Our T989's DO have the correct bands for AT&T's 3G, right?
Pretty sure you have to flash a skyrocket modem. Only then will it activate the correct radio bands.
neftalica said:
no i didn't, and i'm using one apn for internet and mms, can i flash the skyrocket modem without changing the rom? im currently on stock 2.3.5
baseband t989ukvid
Click to expand...
Click to collapse
Go to settings wireless networks, mobile networks, access points,, click the you have in there, , all the way in the bottom is son type, make sure it says Internet + mns, try that first, if that don't help I think you have to flash the modem
Sent from my SGH-T989 using Tapatalk
amorek13 said:
Go to settings wireless networks, mobile networks, access points,, click the you have in there, , all the way in the bottom is son type, make sure it says Internet + mns, try that first, if that don't help I think you have to flash the modem
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
already done that, restart and nothing, could you tell me how i can flash the modem or give me the link please?!
neftalica said:
already done that, restart and nothing, could you tell me how i can flash the modem or give me the link please?!
Click to expand...
Click to collapse
Thru clockwork or Odin, search for thread title works in att 3g, you can get modems on a sticky here somewhere, I don't think you had to play with the band
Sent from my SGH-T989 using Tapatalk
This is the skyrocket modem on the modems thread on here i couldnt share it on this app but this is the download link
http://www.multiupload.com/44MFNUKKGQ
Make sure search before u update it on ur phone since i dont know if its a flashable zip
Sent from my SGH-T989 using xda premium
Couldnt copy link but here u go
-Mr. X- said:
Here is just a collection of CWM flashable modems i have tested to be working on the SGS-T989(D)
SGH-T989 Series:
Telus KJ3:http://www.multiupload.com/NGWMYT1IVB MD5sum: dbb99867f4f51edc02838785e05ce556
*Supports dual channeling HSPA for HSPA+ on 850/1900 (42 Mbps)
Tmo VK1:http://www.multiupload.com/T6V26C1CMN MD5sum: 6edd127b2c644e561eb303ea1e513993
* I assume that this would be the best for HSPA+ AWS 1700
SC-03D JPN:
DoCaMo KK3:http://www.multiupload.com/8SS9YLR1WC MD5sum: 2dfafe14369176ffdf1f8febcc03a6e7
*Works on SGH-T989 fine but no 850/1900 UTMS (Use In Asia/EU only)
SkyRocket Series:
Rogers KJ7:http://www.multiupload.com/44MFNUKKGQ MD5sum: 2dfafe14369176ffdf1f8febcc03a6e7
NOTE: these are the radios i have TESTED this is why i don't have every radio available up here because i have not tested them to be working to some degree. Others are welcome to post and contribute what they have tested working as well.
Click to expand...
Click to collapse
Sent from my SGH-T989 using xda premium
funziebear said:
This is the skyrocket modem on the modems thread on here i couldnt share it on this app but this is the download link
http://www.multiupload.com/44MFNUKKGQ
Make sure search before u update it on ur phone since i dont know if its a flashable zip
Sent from my SGH-T989 using xda premium
Couldnt copy link but here u go
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Thanks for the advice, but i flashed the telus and do the same, 3g icon no internet, but access on edge, and with the rogers, it didn't even get signal
again
thanks, if you could give me more advice i will be happy
Try here i know some people where messing wuth tmobile and att bands
http://forum.xda-developers.com/showthread.php?t=1417095
Sent from my SGH-T989 using xda premium
say i wanted to use my t989 on my gfs att account and i just unlocked the device, whats the best radio to use? and whats the best data speed i can get? 3g edge? im not quite understanding people from the previous posts... just want a straight answer... thanks =)

I can only access H+ and not LTE

I recently got a LTE sim card, and an LTE data plan with Fido. 4G worked for about 5 seconds (I even did a speed test) and then now it's permanently on H+.
APN is set to LTEmobile.APN but when I change to Network Mode LTE/GSM, my signal goes blank and stays like that until I go back to GSM/WCDMA, which doesn't make any sense.
I'm using Task's 10/28 Build, which is the only build that doesn't have black screen unlock.
I tried updating to his latest 4.2 but LTE still didn't work.
Any ideas on what is wrong?
Sepharite said:
I recently got a LTE sim card, and an LTE data plan with Fido. 4G worked for about 5 seconds (I even did a speed test) and then now it's permanently on H+.
APN is set to LTEmobile.APN but when I change to Network Mode LTE/GSM, my signal goes blank and stays like that until I go back to GSM/WCDMA, which doesn't make any sense.
I'm using Task's 10/28 Build, which is the only build that doesn't have black screen unlock.
I tried updating to his latest 4.2 but LTE still didn't work.
Any ideas on what is wrong?
Click to expand...
Click to collapse
Please invest $10 and get a LTE sim card from FIDO it will work with LTE sim card.
ysr84 said:
Please invest $10 and get a LTE sim card from FIDO it will work with LTE sim card.
Click to expand...
Click to collapse
did you not read what he said? He has an LTE sim card. To the OP try a google search and see if there are any different apn's. Its not rom related because task650 gets LTE speeds with his rom. Or if your phone is unlocked and you know someone else that has the same phone or LTE sim card pop it in and try it out
Sent from my SGH-I747M using xda premium
I'm suffering the same problem on rogers. Going to flash back to stock rooted to fix the problem, then try again. I'll do this tomorrow as its getting late.
Sent from my Nexus 7 using xda app-developers app
Download LTE on/off from the play store and switch to lte only, I'm on fido and I had the same problem
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
pjcordi said:
Download LTE on/off from the play store and switch to lte only, I'm on fido and I had the same problem
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Tried it but didn't connect to lte.
Sent from my Nexus 7 using xda app-developers app
Some ROMs have incorrect Fido/Rogers APN settings; I'd go over what's in the ltemobile.apn settings and compare it to a known good set (such as the ones in the stock ROM).
Soft bricked my phone by going back to rooted stock ROM through Odin. Guessing I should have formated system. Anyways fixed it up. Got lte working on rooted stock. Then when to miui no lte. Read that lte is a problem with many on this ROM so I lose. Hope I can get it working eventually when off stock.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
onei0077 said:
Soft bricked my phone by going back to rooted stock ROM through Odin. Guessing I should have formated system. Anyways fixed it up. Got lte working on rooted stock. Then when to miui no lte. Read that lte is a problem with many on this ROM so I lose. Hope I can get it working eventually when off stock.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Carriers use different labels for H+/LTE - ROMs differ in how they interpret the actual signal speed.
Some ROMs accurately reflect the network speed, some don't.
Some carriers promote/sell speeds that they cannot provide in every area.
There are many possible explanations as to why you are experiencing this.
You should provide your ROM, carrier, APN settings, network speedtest results, etc. for more in-depth answers.

Data issue...

Ok SO I could not find a proper thread for this since there are SO many threads. The issue I'm having is I got a Samsung galaxy S III that was unlocked, and after I put my ATT sim into it I could recieve texts and calls but I could not recieve data. So I rooted it and applied clockwork with all my mods and figured I could find some setting that would fix it... well I was wrong. I tried global, GSM and LTE settings none of which would give me data. If there is anything anyone can do to help I would be more than appreciative.
Synaaron said:
Ok SO I could not find a proper thread for this since there are SO many threads. The issue I'm having is I got a Samsung galaxy S III that was unlocked, and after I put my ATT sim into it I could recieve texts and calls but I could not recieve data. So I rooted it and applied clockwork with all my mods and figured I could find some setting that would fix it... well I was wrong. I tried global, GSM and LTE settings none of which would give me data. If there is anything anyone can do to help I would be more than appreciative.
Click to expand...
Click to collapse
Check ton make sure your proper APN setting is selected and filled in correct.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
In addition to the apn's, check your imei #
Also if this a new phone that u have not used before and just go call att so they can regester the devoce
Sent from my SAMSUNG-SGH-I747 using xda premium
Pbwizkid said:
Also if this a new phone that u have not used before and just go call att so they can regester the devoce
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
While I agree that you should always call at&t so they can register a device to your account, this will not help his current data issue
OP, is this an international s3, T-Mobile or at&t? What firmware/rom is installed? Again, verify your imei is intact
Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535
Synaaron said:
Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535
Click to expand...
Click to collapse
Stock APN settings can be found here based on your carrier.
http://forum.xda-developers.com/showthread.php?p=33060276
Settings > more > mobile networks > access point names
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Synaaron said:
Ok so this is a verizon Galaxy S3. It is rooted running 4.1.2 JB, Kernal 3.0.31. After I got the phone I did go to an ATT store to register a micro sim because i didn't have one at the time. So the imei is registered to my sim card perfectly. I can get calls and texts without any issue but no data. How do I figure out what the apn settings are and if I have the right configuration?
Sent from my SCH-I535
Click to expand...
Click to collapse
You do realize you're trying to use a cdma phone (verizon) on a gsm network (at&t), right? Different radios. Different technology. Won't work
Well it was unlocked at the phone has a gsm option so if it wasn't compatable I don't see why they would have the option there to actually use a gsm network.
Sent from my SCH-I535
Synaaron said:
Well it was unlocked at the phone has a gsm option so if it wasn't compatable I don't see why they would have the option there to actually use a gsm network.
Sent from my SCH-I535
Click to expand...
Click to collapse
You need to read more.
this phone only supports GSM with EDGE data.* This essentially means that you'll get 2G data speeds (unless you have a WiFi connection) because it doesn't support UMTS/HSPA+ which is required for international and U.S. 3G data. the 4G LTE frequency supported by this phone is only used in the U.S.* For those who don't know UMTS/HSPA+ is the 3G technology used by GSM carriers internationally (and used by AT&T and T-Mobile in the U.S.) which is different from the CDMA/EV-DO 3G technology used by Verizon and Sprint.*
This phone IS unlocked, that part is correct. But only for gsm carriers
So its preventing me from recieving ANY form of data possible?? It is a Verizon phone and I have ATT so you mean it doesn't support GSM then right?
Sent from my SCH-I535
You're in an at&t s3 forum with a verizon s3 that has zero data. If you really want to pursue this issue, you should start looking around in the Verizon S3 forums
Ugh that'll be the third forum I've gone to... I'm so lost
Sent from my SCH-I535
Synaaron said:
Ugh that'll be the third forum I've gone to... I'm so lost
Sent from my SCH-I535
Click to expand...
Click to collapse
you have a Verizon S3, that is the FIRST place you need to go. always go to the forum for the device you have, bro.
http://forum.xda-developers.com/forumdisplay.php?f=1708
If I'm not mistaken, some Verizon devices will not work on US gsm networks even if unlocked, only foreign gsm networks.
Saw an article about this, although it might have been a different phone that was being discussed.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Well rhank you everyone for dealing with my stupidity... I here on give up on this phone and am gonna sell/trade it for an ATT GS3...
Sent from my SCH-I535
Synaaron said:
Well rhank you everyone for dealing with my stupidity... I here on give up on this phone and am gonna sell/trade it for an ATT GS3...
Sent from my SCH-I535
Click to expand...
Click to collapse
If you are going to stick with AT&T, that is the way to go if you want to have data. No worries. Stupidity is only if you didn't learn anything. You had ignorance of the situation and now your don't. Do some research on any phone before you buy next time (especially if branded from another carrier). This can save you a lot of headaches as you have just learned. Just remember some basics from this forum. Good luck.

[Q] At&t S3 On MetroPCS LTE/TmobileLTE

Hi guys, i have a s3 i747 that has been unlocked and ready to be used on other gsm networks.
I went to a metropcs store and had the phone activated and sim card inserted, my imei was connected fine and everything went great.
I instantly had EDGE(1x or 2g) and even after hours of searching and phone calls to metropcs all i can find is APN solutions that dont work.
I currently live in Dallas/Ft Worth so i know the LTE coverage for Metropcs/Tmo is amazing it just ill not connect to LTE.
How do i get LTE to work on this device ??
Phone Specs
Has root
Unlocked
S3 i747 from At&t
Worked fine on At&T for LTE
Su keeps for closing at start because it says security issues
Stock rom on 4.3 but it says custom build under about settings for some reason.
Data speed is about 0.09-0.10mbps
Any help would be great. Sorry if this is a repost of other types of threads but i never found answers and did not want to re awaken old threads.
macklin345 said:
Hi guys, i have a s3 i747 that has been unlocked and ready to be used on other gsm networks.
I went to a metropcs store and had the phone activated and sim card inserted, my imei was connected fine and everything went great.
I instantly had EDGE(1x or 2g) and even after hours of searching and phone calls to metropcs all i can find is APN solutions that dont work.
I currently live in Dallas/Ft Worth so i know the LTE coverage for Metropcs/Tmo is amazing it just ill not connect to LTE.
How do i get LTE to work on this device ??
Phone Specs
Has root
Unlocked
S3 i747 from At&t
Worked fine on At&T for LTE
Su keeps for closing at start because it says security issues
Stock rom on 4.3 but it says custom build under about settings for some reason.
Data speed is about 0.09-0.10mbps
Any help would be great. Sorry if this is a repost of other types of threads but i never found answers and did not want to re awaken old threads.
Click to expand...
Click to collapse
This issue seems popular this week.
If it's like the others, it's an issue from unlocking. the nv file gets damaged. The solution so far is to use nv-reader-writer to copy another phone's nv file and replace yours with it.
have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE
Where could i find a nv file for the s3 i747?
pcshano said:
have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE
Click to expand...
Click to collapse
I have a little, i am now trying it will report back thanks guys.
macklin345 said:
Where could i find a nv file for the s3 i747?
Click to expand...
Click to collapse
either your own backup of imei or your friend's
pcshano said:
have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE
Click to expand...
Click to collapse
pcshano said:
either your own backup of imei or your friend's
Click to expand...
Click to collapse
So when i switch to wcdma it gets 4g but some reason my phone gets no signal, then gets barely any and it says emergency calls only. This is highly frustrating. Is there a guide for NV??
macklin345 said:
So when i switch to wcdma it gets 4g but some reason my phone gets no signal, then gets barely any and it says emergency calls only. This is highly frustrating. Is there a guide for NV??
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2374063
I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
brad65807 said:
I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
Look on the post above yours, the solution is there.
Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
brad65807 said:
Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
You do realize 4g and LTE are the same thing?
BWolf56 said:
You do realize 4g and LTE are the same thing?
Click to expand...
Click to collapse
false. 4g is hspa+ and LTE is LTE.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Jakeuten said:
false. 4g is hspa+ and LTE is LTE.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
he meant if you're on AOSP, then 4G = LTE.
brad65807 said:
I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
hey man its very frustrating ive been trying to find every thing i can to solve this issue, i will keep in touch if i solve it brother
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
BWolf56 said:
Look on the post above yours, the solution is there.
Click to expand...
Click to collapse
Sir, i tried to use the nv tool but it keeps saying phone wont connect.
i have the drivers installed, it sees my ports for the phone, i go to connect and it does, but when i click read device it fails. Ive had no boxes checked, one box checked and both boxes for spc and fast read(i think it is) checked. No Go either way. Any suggestions for this? Then i can see if the NV Writer is a solution. Also i can use my own NV file right??? Or would that just be a corrupted file being reloaded ?? If thats the case how do i find a clean NV file for a Samsung Galaxy S3 i747 for AT&T??? Thanks again for the help brother
I would think you would need to load an NV of a different s3. I will try to load my NV here in a few and see what happens. PM me also
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Ok guys i tried some settings. a guy i know tried to inject the AWS for Tmobiles band freq. and it didnt work.
SOooooooooo im thinking we might have to skip AT&T phones on metro/tmo and get a tmo phone or a AT&T phone that supports AWS band freq.
brad65807 said:
Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
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Wait....How are you getting 4g ?? it might not be LTE but da*m its faster than Edge. Could you tell me your apn, and your settings if you changed anything since you first switched to metropcs.
Like dial star, hash(number sign)twice, the 4636 and star,hash star, hash and go to device info, then screen shot, then scroll down and screen shot again where i can see "set preferred network"
also man are you sure you have the S3 I747 from AT&T??
Make sure you are checking your connection in Settings > About Device > Status > Network Type
You cant always trust what's displayed in the status bar. Especially when using a custom rom or using a device on a different network than it was intended for.
Yea man I know. I've checked everything and says edge still.
I think it's based on your radio and kernel. Brad what kernel and radio you using.?
I'm on 4.3 Rooted and stock.

TMO rom /w LTE support

I'm in a real pickle. I have a AT&T (I747) S3 that's capable of LTE. I've flashed several T-mobile rom's on it and everything seems to work except I don't get an option to choose LTE in the Mobile Networks. I assume this is because T999 did not have LTE but T999L did.
Are there any roms that are touchwiz (I need wifi calling) and also support LTE?
Thanks folks!
Um... Why haven't you tried at&t ROMs if you don't have a t999* device anyway?
Sent from my SGH-T999 using Tapatalk
Because AT&T roms don't have Wifi-Calling feature. I should have clarified T-Mobile is my carrier.
I was able to figure this out. I downloaded this 4.3 Stock deoxed ROM for T999L and I was able to get everything working. Now onto theming it like an S5. Unfortunately majority of the custom roms out are for the T999 and don't support LTE. http://click.xda-developers.com/api/click?format=go&jsonp=vglnk_jsonp_14033932361886&key=f0a7f91912ae2b52e0700f73990eb321&libId=e2cc1c90-f9dd-49fc-b098-d6b1401acb32&loc=http%3A%2F%2Fforum.xda-developers.com%2Fshowthread.php%3Ft%3D2561670%26page%3D7&v=1&out=http%3A%2F%2Fwww.androidfilehost.com%2F%3Ffid%3D23252070760975307&ref=http%3A%2F%2Fforum.xda-developers.com%2Fshowthread.php%3Ft%3D2561670%26page%3D8&title=4.3%20Update%20for%20T999L%20now%20live%20-%20Page%207%20-%20xda-developers&txt=%3Cfont%20color%3D%22Blue%22%3ET999L_4.3_UVUBMK4_deodexed_KnoxFREE.zip%3C%2Ffont%3E
tokenpoke said:
Um... Why haven't you tried at&t ROMs if you don't have a t999* device anyway?
Sent from my SGH-T999 using Tapatalk
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Well then, that makes a huge difference, lol.
Sent from my SGH-T999 using Tapatalk
T999 ROMs do support LTE, but you won't see the option for it, as long as you select auto it will connect to it
Sent from my SGH-M919 using Tapatalk
Huh I'll look into that then! Thanks!
Rishi
serio22 said:
T999 ROMs do support LTE, but you won't see the option for it, as long as you select auto it will connect to it
Sent from my SGH-M919 using Tapatalk
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I still can't seem to get LTE on this AT&T S3 (/w AWS enabled). In the same area I'm able to pickup LTE on another AT&T S4 (/w AWS enabled). I'm able to pick up Edge and HSPA+ on both.
UPDATE: I was able to connect to LTE but I had to force the phone to use LTE Band 4 using *#BAND#. I was not able to make any calls at this point since it was the modem was running LTE only.
I then moved the modem to Automatic and the LTE remained and I was able to make some calls but on ending them, it went straight to Edge instead of HSPA+ or LTE.
The switch over between Edge to HSPA+ / LTE doesn't seem as smooth as the S4 and sometimes it just doesn't switch and sticks to Edge.
Ideas?
People have been trying to do this for a while and it is something I believe just isnt going to work. The I747 was built to use a specific set of frequencies on AT&T networks. T-Mobile uses different frequencies/bands and the I747 simply cannot make proper use of them. There's threads in AT&T forums about this. You should check them out.
I used an I747 before with T999 ROMs and had no problems connecting to LTE once I used the correct APN, can you please state what APN you are using?
Sent from my SGH-M919 using Tapatalk
Ok, I have realized that this is an error caused by the AWS patch going away when I reboot. I thought this wasn't supposed to happen with I747 and only with i747M's but it seems like it's happening to my unit.
Once I have the AWS patch on, it goes quickly from E - > 4G (HSPA+ - > LTE (when available). When the HSPA+ is only available, it has a much harder time moving from E-> LTE directly.
serio22 said:
I used an I747 before with T999 ROMs and had no problems connecting to LTE once I used the correct APN, can you please state what APN you are using?
Sent from my SGH-M919 using Tapatalk
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Oh I didn't realize you were using the patch.. Well my area is refarmed for 1900 hspa+ so I didn't have to use any patches, once I put in the LTE APN it quickly picked up LTE and everything was good
Sent from my SGH-M919 using Tapatalk

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