Hi guys, noob here, just got my first android phone (been with blackberry till now).
I got a chinese X12 dual sim phone because i really needed only 1 phone (had to carry around 2 of them).
Phone works great, only problem is with the mobile networks. It can connect to GSM networks but it won't connect to a 3G network. The phone has 3G capabilities, 3G is enabled for the required sim, it finds the 3G network but it will not connect to it.
Sim works fine, had it in a Samsung i900 on 3G (WCDMA) - i live in Europe.
The thing that surprises me most is that the phone came with android 4.0 instead of the 2.3.6 it was advertised, could this be the problem?
Data Enabled ?! have access points ?!
Taki2011 said:
Data Enabled ?! have access points ?!
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yes, data is enabled on it, as for the access points it has them too (althought i am only trying to connect to the voice network, not the data network)
Tried one more thing which is wierd: the phone works ok with another 3G sim from another provider, but with the other sim it doesn't connect (but it finds the actual network). And the sim that won't connect works on my old phone (the samsung i900)
The first sim that works on 3G on my new phone is from Vodafone (and they have both GSM and WCDMA in my country), while the other sim that doesn't work is from a provider that only has 3G (for both voice and data).
Quick update:
i found out i also get an "error" : invalid IMEI for both sims - it was this way when i first got the phone...
really strange thing with this phone, in settings > about > it says android version 4.0 but when it starts it has the honeycomb logo...
would appreciate any help, if it's from the missing imei's that would be good (or bad, depending on how hard is that to fix).
You can call ##778# to get into those settings. But be careful, those can really screw up your phone if your not careful.
The only reason i can think of, is if your phone only supports certain UMTS bands, while your operator is using different ones. Check out this article: http://en.wikipedia.org/wiki/UMTS_frequency_bands.
For example, my previous phone HTS Nexus One came in two versions - one for ATT(UMTS 850/1900/2100) and another for T-Mobile(UMTS AWS/900/2100). Both were GSM, both had 3G, but 3G would not work on another operator.
alexander7567 said:
You can call ##778# to get into those settings. But be careful, those can really screw up your phone if your not careful.
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Click to collapse
Tried it. What i get is : USSD code running (for a short while) > unknown application
AntonC said:
The only reason i can think of, is if your phone only supports certain UMTS bands, while your operator is using different ones. Check out this article: http://en.wikipedia.org/wiki/UMTS_frequency_bands.
For example, my previous phone HTS Nexus One came in two versions - one for ATT(UMTS 850/1900/2100) and another for T-Mobile(UMTS AWS/900/2100). Both were GSM, both had 3G, but 3G would not work on another operator.
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phone has only WCDMA 3G network - i tried it on different carriers (on 3G and not GSM) and it works fine, connects to 3G, it just won't connect to this specific network (although it finds the network there, so i guess it has the hardware to connect to it).
could this be from the lack of the IMEI ?
FIXED !!!!
Got it fixed, the problem was with the missing IMEI codes, put them back in, works like a charm.
I used the tutorial here:
http://club.dx.com/forums/Forums.dx/threadid.1004466?page=2
Thanks for all the replies you guys.
hi everybody,
i have a UK T-Mobile Motorola Atrix that i received as a gift (MB860; 45.31.2.MB860.T-Mobile.en.GB; android 2.3.4). I live in Morocco where there is no T-mobile. I try to set the phone up to get 3G connection but it never works. it keeps trying to synchronize and changing the signal from normal to 3G to H and so on.
i tried my simcard in other phones and it works and I tried other simcards with 3G in my phone but still the same problem. i called my network technical service and they told me to upgrade the OS. i did it since there was an update available in the t-mobile web to the version mentioned earlier yet the problem persists.
when i see other phones with android there is a option to activate the 3g that i don't have in mine, i think because it's a t-mobile version.
can anyone here give me a hand with this?
thanks in advance.
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
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.
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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
hey this is avi, I want ur help on this ...the problem is my phone is not getting 3g signals in both my personal airtel,idea sim ......I am a rooted device user and flashed many of roms,kernel, the stock rom from odin ...2years before I rooted my device and suddenly 3g goes wrong ..my phone fails to start caching 3g signals ..I tried so much but then give up in thought it is due to my device hardware as I tried diff. softwares .....now here comes the suspense I finally think of porting my airtel sim to idea due to thinking of low 3g networks there and the process starts ...in this time I pulled my mother's idea sim in my device's slot and surprisingly 3g networks r running well no ..emergency calls only I thanked the god for this that 3g came back and it was due to my airtel sim but few days later the sim I ported to idea behaves same as before the airtel... "emergency calls only" .."error while searching for networks" ..2g is working fine with my new sim ...so whats the problem in my device ....as I can run 3g on my mother's idea sim but not on my new sim ...troed vodafone,aircel,airtel no 3g ...only 3g in idea(only my mother's sim)bsnl(my fathers sim)...help me out of this as even there is no problem with my hardware too as(I can run 3g from my mothers sim) and softwaree tooooooo(I tried many roms but no good news just these 2 sims r working)then from where the problem is coming??????
plzzzz help me out of this ...
sent from:Samsung galaxy core gt-i8262(rooted stock rom user)
hey guyzz....help.me on this pl