Develop Bugs

[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 =)

[Q] No LTE. APN Issue?

Clean flashed a Cyanogemod nightly and I can't connect to LTE
This is my first time using the S3 (came in the mail last night, put CM on it and got a new SIM card)
When I put my new SIM in it, I noticed in the store that data wasn't working.
I go home, reboot my phone a couple times, still nothing.
Flash an updated modem, then tried a new kernel.
Go through my network settings and see that the APN is set to ATT LTE
I set it to ATT and immediately I get HSPA+
I also noticed that there's a network type toggle. Mine was set to WCDMA/GSM rather than LTE/WCDMA/GSM
Under both ATT LTE and the ATT APNs, I am unable to toggle LTE.
Also shouldn't HSPA+ work just fine under the LTE APN?
Not sure what to do from here... This was an upgrade from a gnex and one of the biggest selling points for me was LTE in my area

Are u sure ur APN is right?
Sent from my SAMSUNG-SGH-I747 using xda premium

androidsavage23 said:
Are u sure ur APN is right?
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
APN was correct, it turned out that the data was provisioned properly.
Fixed it by calling 611 and letting them know what my IMEI is. Started working when I reselected the LTE APN after they switched it over.
Thanks though

Maroon Mushroom said:
APN was correct, it turned out that the data was provisioned properly.
Fixed it by calling 611 and letting them know what my IMEI is. Started working when I reselected the LTE APN after they switched it over.
Thanks though
Click to expand...
Click to collapse
No prob
Sent from my SGH-T999 using xda premium

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.

[Q] No lte

I am unable to receive lte data on my Nitro on at&t. I have tried every apn I can find with no luck. The area I am in became active with lte last month. Does anyone have any suggestions. I have a stock nitro with ics.

I may be wrong but do you need or have an LTE sim?

audit13 said:
I may be wrong but do you need or have an LTE sim?
Click to expand...
Click to collapse
I just got the sim card this week and was told that lte should be available with it.

eagleshreck said:
I just got the sim card this week and was told that lte should be available with it.
Click to expand...
Click to collapse
Hmm, I wonder why you can't get LTE.
Does the term LTE appear anywhere on the sim card. I'm with Bell Canada and Rogers. Both of the plastic around both of my sim cards said LTE.
You could also try a speed test to see what speeds you're getting.

Are you running stock firmware? Does the LTE stay on, or does it switch off as soon as you turn it on?
I had this problem for a long time. I would turn on LTE, but it would turn back off after I backed out of the menu. I had mine rooted and with a custom ROM. I had to completely wipe and reflash a new ROM several times. Eventually it started working again.

elgiraffe said:
Are you running stock firmware? Does the LTE stay on, or does it switch off as soon as you turn it on?
I had this problem for a long time. I would turn on LTE, but it would turn back off after I backed out of the menu. I had mine rooted and with a custom ROM. I had to completely wipe and reflash a new ROM several times. Eventually it started working again.
Click to expand...
Click to collapse
I am using stock ics, I can't find where to turn on the lte. When i try the 8#*#4636#*#* the set band on phone info doesn't show any options.

Download "lg hidden menu" from play store and try and set the baseband manually . that's the only way I know how to get to that options unless someone from here knows how
Sent from my LG-P930 using xda app-developers app

I know u said u tried every APN just to be sure have you tried this one
Sent from my LG-P930 using xda app-developers app

nizmoboy98 said:
I know u said u tried every APN just to be sure have you tried this one
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
I did try that apn, and inside hidden menu, these are my network band choices.

Are you sure you have a p930 and not a p936. I have a p936 and I only get edge speeds no matter what frequency I choose . to check which you have take out batter and you should see a sticker p930. If you have a p930 take a Att corporate store and have them mess with it. If you have a p936 it not compatible with Att 3g and 4g
Sent from my LG-P930 using xda app-developers app

nizmoboy98 said:
Are you sure you have a p930 and not a p936. I have a p936 and I only get edge speeds no matter what frequency I choose . to check which you have take out batter and you should see a sticker p930. If you have a p930 take a Att corporate store and have them mess with it. If you have a p936 it not compatible with Att 3g and 4g
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
It is a p930, I will have to keep messing with it. Unless anyone else has an idea.

eagleshreck said:
It is a p930, I will have to keep messing with it. Unless anyone else has an idea.
Click to expand...
Click to collapse
On A p-930 there is an lte indicator with cm 10.1 correct?

[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
Click to expand...
Click to collapse
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.