Develop Bugs

[Q] no signal oversea

Hi
I bought this phone on a plan with Optus in Australia and now I'm in Thailand. I put in a new sim but I cant get any signal. the phone is unlocked as it said when I check the IMEI code in the Optus website. I'm not sure if its correct.
Anyway I suspect the problem is due to different frequency band in thailand but I am not sure. Is there anyway to know it for sure? or to try to change the frequency of the phone to try if it will work?
cheers

tandeman said:
Hi
I bought this phone on a plan with Optus in Australia and now I'm in Thailand. I put in a new sim but I cant get any signal. the phone is unlocked as it said when I check the IMEI code in the Optus website. I'm not sure if its correct.
Anyway I suspect the problem is due to different frequency band in thailand but I am not sure. Is there anyway to know it for sure? or to try to change the frequency of the phone to try if it will work?
cheers
Click to expand...
Click to collapse
Tried going Settings -> Mobile network -> Network Operators and checking the settings there?

I spoke to Optus and just got the phone unlocked over the internet but I was not using the Optus sim nor receiving signal from Optus at the time they did the unlocking. would it work?
the problem still exists.

[Q] N900T No Signal / No Sim Issue on WIND/ Mobilicity Networks in Canada

Dear Devs/ Friends.
Having a serious issue with a lot of N900T on Stock Ml7 . After rooting through Chain fire and unlocking through region unlock app Most of the N900T we have are not recognizing "Mobilicity" Canada Sim Card. it keep saying "No Sim Present". and with WIND Mobile it recognize the sim card but only data works and it keep on saying searching in network. and even we manually searched for networks . It see all networks but it will not register.
It does work with Bell, Telus, Rogers, LTE, 2G 3G perfectly.
Initially it is from TMobile USA. And interestingly it started happening recently as we been unlocking these note 3 from couple months now and they were all fine. I do not know if it is the OTA update or something else.
Can some one please help.

Any update guys? i am really stuck here. none of the Note 3 N900T from tMobile seems to work with AWS Carriers in Canada. even though they have the same frequencies as Tmobile AWS. They were all working a few days back and now they are not. It does not seems like a OTA Upgrade or anything which disabled it somehow. is it our unlocking ( Chaifire rooting, + RegionUnlock Aways) which is causing it?

sntrader said:
Any update guys? i am really stuck here. none of the Note 3 N900T from tMobile seems to work with AWS Carriers in Canada. even though they have the same frequencies as Tmobile AWS. They were all working a few days back and now they are not. It does not seems like a OTA Upgrade or anything which disabled it somehow. is it our unlocking ( Chaifire rooting, + RegionUnlock Aways) which is causing it?
Click to expand...
Click to collapse
Did you solve your problem?

[Q] Unlock carriers

Hi!
I am new to posting on xda.
I have a Sprint Galaxy Tab 3 7.0 and I am in Italy.
Now I have Three UK SIM card that I want use it with my device.
The Sprint network is CDMA and Three is GSM, right?
What can I do for use my tablet with 3G?
I've read in the forum, but I need a solution.
Thanks:fingers-crossed:

Please post the model of the tablet, and the carrier you wish to change it to.
Thanks.

Galaxy Tab 3 7.0 I want to use it three. My sim is three UK thanks

You cant use that tablet on europe at all, no CDMA carriers there, you need the ATT version and pay 19usd to unlock it.
THERE is NO way to get it working, the SIM slot on the sprint tablet is just for Sh1ts N Giggles..

Victor.Moran1 said:
You cant use that tablet on europe at all, no CDMA carriers there, you need the ATT version and pay 19usd to unlock it.
THERE is NO way to get it working, the SIM slot on the sprint tablet is just for Sh1ts N Giggles..
Click to expand...
Click to collapse
Haha... shìts and giggles...

But...
Victor.Moran1 said:
You cant use that tablet on europe at all, no CDMA carriers there, you need the ATT version and pay 19usd to unlock it.
THERE is NO way to get it working, the SIM slot on the sprint tablet is just for Sh1ts N Giggles..
Click to expand...
Click to collapse
Hi but it's the tablet that is cdma?or sim?

theblueray said:
Hi but it's the tablet that is cdma?or sim?
Click to expand...
Click to collapse
The tablet is CDMA, they have a SIM slot but it DOES NOT WORK.
Greetings.

Ok before this I had think that the tablet was CDMA and gsm capable. Thanks

Italian s4 mini no data in usa on att sim card

HI, This phone that I bought from italy is supposed to me unlocked. I can call but cant get data to work. I know 4g will not work here in the usa but how can I get 3g to work? Also using an att sim card

What phone version do you have,
Verify the correct APN in settings.

Verizon Note 4 Not Unlocked......

HI
Why cant I use an international sim in my Note 4. I have tried 5 different sims. Its like the phone isn't even trying to search for networks when I put them in.
If I'm not in the USA I cant activate the Phone can I?? I Think this maybe the problem. Its like the phone locks out the Gsm bands until its activated on the Verizon network. Ive tried a dummy Verizon sim but no dice.
Thanks
In advance

You have to call verizon before you travel to different country to unlock the phone. They will do it. I did the same. I traveled to India and used different sim and it worked. But you need to use apn settings from that carrier to make data work on note 4.
Sent from my SM-N910V using Tapatalk

gersrt said:
HI
Why cant I use an international sim in my Note 4. I have tried 5 different sims. Its like the phone isn't even trying to search for networks when I put them in.
If I'm not in the USA I cant activate the Phone can I?? I Think this maybe the problem. Its like the phone locks out the Gsm bands until its activated on the Verizon network. Ive tried a dummy Verizon sim but no dice.
Thanks
In advance
Click to expand...
Click to collapse
Hi even i have the same problem .Verizon should not lock as per their policy but they are doing so.Someone should put a case on them and sue them

The problem is when I was in the States I activated it on the Verizon Network, when I got home to Ireland phone worked fine with International sim.
Last week I did a Factory reset and its asking me to Activate on the Verizon network again and no sim is working, so I'm screwed I cant activate on the Verizon Network.
The thing I find funny is If you look at vn_mobiles root videos he is able to stick in his Vietnamese sim card after a Factory reset and have it work without having to Activate again on the Verizon Network. So am I missing something here?
I hope he can tell me if there is a work around for Activation because it seems to work for him.

gersrt said:
The problem is when I was in the States I activated it on the Verizon Network, when I got home to Ireland phone worked fine with International sim.
Last week I did a Factory reset and its asking me to Activate on the Verizon network again and no sim is working, so I'm screwed I cant activate on the Verizon Network.
The thing I find funny is If you look at vn_mobiles root videos he is able to stick in his Vietnamese sim card after a Factory reset and have it work without having to Activate again on the Verizon Network. So am I missing something here?
I hope he can tell me if there is a work around for Activation because it seems to work for him.
Click to expand...
Click to collapse
vn_mobiles is a scammer.Any solutions? You gave verizon customer care email id? I am sure they will unlock GSM if we give our imei number since locking LTE phones is against their policy.

Unfortunatly I think the problem is it can't be unlocked unless registered on the Verizon network first with an active Verizon Sim (Which it was before factory reset). As Im not in the states any more I can't connect to the network so I can't activate, so its not really unlocked.

My phone never been activated on verizon and have formated the phone many times and gsm works fine with no issue except the lack of band 3 support....
Are good with DFS tool? If so pm me to test a few things that might get your phone working...

Got it sorted thanks guys.
Really strange one. I tried another Verizon sim. Tried activating and of course it wouldn't let me as I'm in Ireland. But as soon as I start sticking my local Sims in they just start working. Going to guard this little Verizon Sim with my life. Lol

They are unlocked but they might be needed to have vzw sim for few seconds. I was in Poland for 2 months and used my now retired note4. Was getting edge,3g,h+
Sent from my XT1575 using Tapatalk

PapaDocta said:
My phone never been activated on verizon and have formated the phone many times and gsm works fine with no issue except the lack of band 3 support....
Are good with DFS tool? If so pm me to test a few things that might get your phone working...
Click to expand...
Click to collapse
Hello Sir
I actually bought a Samsung Note 4 910v from eBay which was being sold for parts which was not connecting any phone networks...
When I received the phone....it was on lollipop 5.0.1 and tried inserting a Orange Sim card from Mauritius network but It didn't work.
I flashed the note 4 to lollipop 5.1.1 and rooted it but still couldn't get the phone connected to a network...
I checked the phone IMei with Verizon ...it's clean
I read your post....please see image...
Could you help me with dsf tool or run a check of my phone plz...
Awaiting a positive reply from your side.