i have a galaxy mega gt i9152 dual sim international phone. im runnin an att compatible straight talk sim, i have service, but mobile network type says edge2. really slow data. i have the correct apn settings. ive even been to att and they tried one of their sim cards and still couldnt figure it out. if i select gsm/wcdma auto connect it will show the high speed data logo but the data dont work at all, if i dial #*#*4636*#*# it says wcdma preffered, but im usin gsm networks, it wont let me change it to anything besides gsm only, but then its stuck on edge again. theres some other secret menu i tried to get into debug mode where there is supposudly a setting to lock it to 2g or 3g but when i dialed it just said USSD code running, and then displayed my phone number. it was rooted and unlocked when i got it, i flashed it with stock firmware, still had the same issue, i tried a few different countries of firmware, no difference, currently running the uae jellybean stock firmware. i tried calling samgsung and they said i have to call the country of orgin which i guess is india, so i got an international calling card that i guess cant make toll free international calls. so im at a roadblock, i know its gotta be something stupid but i cant figure it out, been messin with it for 2 weeks and searching forums till my eyes bleed, so im makin my own thread now.
so now that ya know my situation, what do i do, how do i get my fone to work on 3g
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my friend tom got his galaxy s like two months ago. he has a even more plus plan with unlimited everything on tmobile and he used that in a iphone 3g for a year with no problems and he could roam with no issues on att.
with his new vibrant its not working! it takes forever to try to connect then gives a error. the sim should be good since it roams in two other unlocked phones..
for the note, his phone IS unlocked... that was the first thing we thought of..
the error is: unable to select network.. your sim card is not allowed to connect to this network
this phone is a quadband phone so it should work.. we have put a att legit iphone sim in it and it works great.. what gives? why can't he roam on this new phone when other phones do? running bionix rom.. have tried updates, wondering if anyone has any opinions or info
we've already tried changing network settings with *#0011#, gone into service mode *#*#197328640#*#* with no luck
edit: we've tried not allowing the phone to connect to our local att 3G band (1900) and use all other bands again with no luck. the phone connects to canada's rogers network tho.. weird..
anyone check this out yet?? anyone got it workin? any reports would be killer ...
we have tried more settings through service mode still with no luck. when we specify certain bands and leaving the att 3G local band unchecked, it will not hop on T-mobile with the setting! Crazy! not sure if it's the rom, radio version or kernel but we will keep tweaking and posting results.. if anyone is having this issue or has concerns any posts or signs of life would be cool lol
Same issue
Unfortunately, I don't have a solution, but I've been working on this same issue since september. I originally contacted tmo about the problem to see if they somehow hadn't provisioned my phone/account for roaming. Needless to say they were not much help. They suggested I exchange the phone for a new one, which I did, and I still have the same problem.
I'm in a rural area of california where tmo has roaming on att towers. My girl has tmo service with a different samsung phone and she can roam on att just fine. She can send/receive calls and text. I even put my sim in her phone, and it works, so I've pretty much narrowed the problem down to an issue with the vibrant itself.
My phone is not unlocked, so we've ruled that out. I'm running bionix fusion with ji2 modem now, but I've had the issue with the stock phone before ji6, and after ji6 ota. I've tried messing around with the service menu the same as you, and I haven't got anywhere either.
I have been able to get the phone to at least lock on to att by adding the apn internet2.voicestream.com, and it will get past the "not registered on network" message. Unfortunately, it won't complete a call or send a message, it just times out after about 15 seconds and drops back to the previous menu (depending on whether I tried to dial out of contacts, the call log, or the dialer). But it does not give me an error message, it behaves as if the call connected and immediately hung up.
I had given up on it for the past couple weeks, but I have time now to try and work it again. Let me know if you've gotten anywhere, and I'll do the same.
The fix is: when you're in an att roam area, set your phone to gsm 850 only via the service menu. If your phone doesn't auto lock on the att network, search for available networks and choose att. After that you should be able to send and receive calls and texts.
after yet some more messing around, still no luck. it's clearly a thing with tmobile not allowing roaming..... because i read many threads off the gooooogle that say tmobile is pretty much going away and any "contractless" plans don't have roaming so they don't lose money....
dickheads. at least he's grandfathered in with a good unlimited everything plan tho..
even if all this said, if anyone finds any info out post!
the other day i was out of tmobiles network coverage and on att voice and edge not 3g. i live in texas
this is with a stock vibrant jI6
tried the app RoamControl with no luck. it uses different tmobile bands when in "roam only" mode. anyone have any luck yet?
I have a SGS2 branded with tmobile.. i unbranded it and rooted it. after using it for a day I saw that i loose reception totally when i turn on the data connection. I have to reboot everytime.. and then after a few minutes it gets lost again! I have tried different modems/roms .. and now im back to the branded rom/modem/kernel, but i still get the same ****!.. when i try to turn on/off the airplane mode to prevent rebooting.. it gets stuck there too.. I've read that more people have had this problem.. So please someone help me out here.. I have a new SGS2 but i cant use it!
I'd start by making sure your device has all the correct T-mobile APN's configured
I have entered the APN manually.. the device is sim unlocked.. im not using a t-mobile simcard in it.. but its on the tmobile network though
Ok still a noob at this so go easy on me.
so flash a rom but didnt like it and had to reflash my original firware. problem 1. didnt know it so i used the lg too putting in model number and imei and it told me i need V10B_00 (vodafone spain)
Flashed with KDZ no problems, Hard reset phone to exit boot loop booted to phone fine, read sim asked for pin fine, connected to network full bars fine, connect to 3g no problem all is working, EXCEPT! go to make a call goes direct to call ended. people cant call me either.
sim works fine in another phone so its not the sim or network.
can send receive texts fine its just the calls
tried flashing radio v10b zip wouldnt even recognise the sim
flashed v10a.zip recognises sim but again no calls
someone please help me im going loopy and i promise i will buy you a pizza
The newest version is v10f. I think. I'm on the e739, the gsm version of your phone. Your service provider is Vodafone?
Sent from my 8-Core LG Galaxy S7
Alphaneus said:
The newest version is v10f. I think. I'm on the e739, the gsm version of your phone. Your service provider is Vodafone?
Sent from my 8-Core LG Galaxy S7
Click to expand...
Click to collapse
yeah, vodafone spain. i have searched through all the internet and there is nothing out there about this scenario. like i said texting HSDPA all fine.. but go to make a call and as soon as you hit call you get call ended screen. phones not blacklisted or anything and its since i flashed V10b_00
will download and flash v10f and let you know
carlgrancan said:
yeah, vodafone spain. i have searched through all the internet and there is nothing out there about this scenario. like i said texting HSDPA all fine.. but go to make a call and as soon as you hit call you get call ended screen. phones not blacklisted or anything and its since i flashed V10b_00
will download and flash v10f and let you know
Click to expand...
Click to collapse
Ok so, flashed with 10f,
same problem, i can text i can call emergency i can access internet but no normal calls and cant receive
No idea. Sorry.
Sent from my 8-Core LG Galaxy S7
Hello friends .
I'm sorry I am writing because I english translation program .
I live in Turkey. S6edgeplus - 928v phone models came from abroad. but the phone does not open 4G - LTE in turkey. *#*#4636#*#* it says LTE ONLY do I do when the connection was severed, and the line was disconnected . I could not find a solution in turkey please help me . Thank you very much in advance
Go into setting then mobile network and set network mode to umts GSM lte. If you're trying to get 4g while on a call, I can't figure that out. It doesn't work for me neither when I use an att sim card in a Verizon phone. I can't get Internet while on a phone call.
warriorpluto said:
Go into setting then mobile network and set network mode to umts GSM lte. If you're trying to get 4g while on a call, I can't figure that out. It doesn't work for me neither when I use an att sim card in a Verizon phone. I can't get Internet while on a phone call.
Click to expand...
Click to collapse
Thank you for your interest . but according to my research yesterday 3-7-20 LTE bands in Europe . I do not have my phone with this band . I do wonder how do I install or installing the ? I use my phone that is not loaded
Same problem on tmobile on 5.0 I wonder if its a marshmallow problem too. IT only worked when i first switched from verizon to tmobile and had advanced calling enabled through verizon. Somehow it tricked tmobile or the phone into working with data and call? Since i did a factory reset though now with tmobile sim no luck Im waiting to update soon myself almost done downloading the update
Hello people. I am hoping for some help. Have s4 mini I9195. Unlocked. Currently I am connected to T-Mobile network. However can only get 2g in my area. So bought, activated, registered, and paid for att account. Now have both T-Mobile and att. However, when plugging in the att aim it WILL NOT connect to att. I get 4 Signal bars on phone but no connection. Have correct apn. Spent two hours with att it's not on their end. Sim card works fine in different phones and other att sims WILL NOT work in my phone. So we know it's NOT a Sim issue. And remember T-Mobile network is connected and working. Only att is the problem and will not connect. Any ideas?? Please help??
I'm on the verge of flashing custom recovery, rom, gapps, to maybe fix this but want to make sure I am not missing something more simple first.
I've done all the basic stuff from resetting phone, apns, closest tower, etc.. Just see seems like phone will not accept att now. It did for first night for about 15 mins got texts and Signal, but nothing since. I am stumped.
Thank you for any help