I bought a T-Mobile S4 and unlocked it thanks to this website. I also did request the unlock code (which I do not have).
Anyways, phone seems to work fine but I notice occasionally when I wake the phone up I have the no signal icon and it takes 5 - 30 seconds for it to reconnect to an AT&T network. It seems to happen a couple of times per hour. Any ideas?
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Hi all.
Picked up an S620 at Dubai Duty Free and it cannot hold onto the radio signal here in UK. I am in a 5 bar signal area and the HTC locks into the signal at 3-5 bars strength for between a few seconds and maybe 1 hour then searches and finally freezes requiring battery removal to re-start.
Have cold booted device several times - no better. Have set network to manual as per another post here.
Appreciate any advice.
Operator locked?
Sim locked?
No and no, at least I don't think so.
Handset was purchased SIM free so I assume all unlocked. I have tried 3 different UK SIM cards in it with similar result ie picks up signal and is usable for between 1 and 45 mins - I can make and receive calls at this time - then loses signal and searches displaying variously 'searching', 'phone off', 'T-Mobile' (or operator name). All this happens over a period of up to around 45 minutes before the unit freezes completely and the battery needs to be removed to allow re-boot..
I'm fairly sure the handset is broken but, since it will have to be returned to Dubai and I am in UK, I wanted to try any options available.
Everything else works OK.
Appreciate your help.
I was recently on Tmobile and decided to switch back to NET10 for ATT's network. I was using an unlocked Lumia 520 when I first switched over so I used the micro-sim. I use an adapter obviously for my GNexus and my Rugby Smart. Well, when I switched it into my Gnexus, it would get signal, and then cut out. The phone still read as having a sim card in it, but no network anything. I tried it in all phones - same thing and eventually the phones wouldn't even connect to the network for a few seconds.
So, I activated the mini-sim in the kit (it has 3 - 2 att and 1 tmo). It works fine in both Samsung phones (I didn't cut it yet to put in the Lumia). The problem I seem to have now is the phones both lose connection to the google services at some point - the little blue color cuts out (and whatever it is on the Rugby). I still have data, the Gnexus shows the H and if I open the phone and use an app - it'll update or whatever. Sometimes I get connected to the google services right then, other times no. I reset the Gnexus a few days ago and the Rugby was about 2 weeks ago I reset it.
My battery dies like a mofo now though on either phone and I know that Tmobile always kicked down to UMTS to save battery and ATT mostly doesn't as evidenced by the H always - can this be the huge battery drainer? Could it be the NET10 mini-sim is also bad? I know the Gnexus and many samsung phones have 'eh' battery, but it wasn't like this on Tmo.
I'm on stock - no roms or anything. I get good, strong ATT signal (about 90dBm) at work and home. Anyway, thank you all.
Ever since I bought the unlocked tmobile note 2, it gives me service issues.
Every 40 seconds it says there is no signal and data. Then 40 seconds later the signal comes back but data takes a long time to revive.
Sometimes I have to reboot the phone to get data again but it keeps repeating.
Every 40 seconds theres service then 40 seconds no service. Its been like this since May.
So whenever I want to browse the internet or call/text someone, I can't because of this issue.
Help?
I bought a rooted AT&T Note 8 a while ago to use on a T-Mobile tablet plan. When I used my phone's sim to unlock it it showed LTE but hasn't since. I've checked the apn settings, restarted it, removed and reinserted the sim- nothing. I've also experienced occasional data drops (but very few total service drops). I've used unlocked AT&T Note 1's in the same area in the past with no problems.
I thought it might be the sim so I went to a T-Mobile store. We put a new sim in, saw LTE, and then restarted it when they added the new sim to my account. Same problem. Two different reps confirmed the LTE apn was correct. Speed tests are definitely showing hspa. I don't mind not having jet fighter speeds but the terrible latency and data drops are frustrating.
I'm also seeing occasional freezes while, and only while, scrolling. Tapping the home button takes it to home immediately. Everything else is fast and smooth.
i467 rooted, unlocked, on a T-Mobile tablet plan, a few xposed modules, some little things frozen with titanium, but otherwise stock 4.1.2.
I manually reset the battery a week ago (7+ hours of screen time on 4g since!) and, except for the above, everything has been great. Any ideas?
Well, here's one answer...
http://support.t-mobile.com/thread/74240
Hello! I have a cellular signal problem on my one plus 7t.
it was t-mobile but now it is unlocked. I use it for GSM Network which has the same bands (also I Had anotherOP7T t mobile unlocked and worked perfectly).
periodly the signal lost and I don't know why.
sometimes I need to restart the phone several times to connect the operator, but sometimes it doesn't work.
Maybe it is a Coincidence, But While charging, when the phone is up to 70% signal is active, after 70% -it will be lost.
Maybe it is a Coincidence.
what can I do? is it a software problem or technical one?