Database Users

Unlocked but shows roaming service

my HTC P3600 was purchased in the UK and was locked on the Orange network. I got it unlocked before moving to Canada to study. I purchased a sim card from one of the GSM mobile operators (Fido). But when I insert the sim card into my phone it shows me as roaming and the network also charges me roaming service rates even though I am not in a roaming area.
I upgraded the ROM from WM5 to WM6.1 and still the the problem is not fixed.
I also used the sim and CID unlocker (http://pof.eslack.org/trinity-unlocker/) to "reunlock" it but that also didn't work.
Can anyone help me out here. I love my phone and would like to use it instead of getting another one.
So please whatever suggestions you have would be welcomed.
thanks in advance

can't register on network with g1

I unlocked successfuly my tmobile g1 coming from usa, but now I have no signal and unable to register on network.when I go in settings,wireless control,,mobile networks.when i ask for available networks i have this error message:"error while searching for networks".even when i choose select automatically i have this:"your sim card does not allow a connection to this network".we have GSM, GPRS, and EDGE in my country.Do you have any idea?thanks!

It's your SIM card being locked to a specific network. You might have to contact your vendor.

I don't understand,my sim card locked?I don't have pin code.you are talking about my foreign sim card(non tmobile?)could you explain more?

I don't know why either. I just know that is what happens. I had the same problem with my SIM too when I went on vacation. But I didn't bother trying to fix it. Since I brought the local SIM to use because I didn't want to pay the international rates.

[Q] getting AT&T GoPhone SIMs to work

recently i've bought a milestone 2 and i wanted to see if my AT&T Gophone SIM card would work on it, turns out it doesn't no service, network, or phone number in the status menu
is there anyway to fix this or is my device just incompatible? i'd greatly appreciate any help on the subject manner

[Q] SIM not valid - Enter SIM network unlock PIN

I have tried every code mentioned, in here, that was successful for others but not for me.
I started by buying my Galaxy S4, out right, at Walmart for use on Family Mobile. Poor signal everywhere except in my house. The phone has T-Mobile support as far as towers go. After about three weeks I had my phone number transferred to Straight Talk and they sent a SIM card for use with AT&T support. The phone was purchased as an unlocked phone, I did all the codes in this forum to check and sure enough, it is supposed to be unlocked, BUT, every SIM card I get from Straight Talk gives me "INVALID SIM CARD" when I boot up the phone then a black screen comes on with a subdued color message saying, "Sim network unlock PIN" and all the help from Family Mobile, T-Mobile, Straight Talk, Walmart and AT&T, have not helped my situation. I can't write a new APN and store it because I have an invalid SIM card. I have tried the service mode and did everything mention in these forums but no luck so far.
I really like the device(my NOT-Phone) but it does not function as a phone. Can anyone help with this one?
:crying:

gdeem01 said:
I have tried every code mentioned, in here, that was successful for others but not for me.
I started by buying my Galaxy S4, out right, at Walmart for use on Family Mobile. Poor signal everywhere except in my house. The phone has T-Mobile support as far as towers go. After about three weeks I had my phone number transferred to Straight Talk and they sent a SIM card for use with AT&T support. The phone was purchased as an unlocked phone, I did all the codes in this forum to check and sure enough, it is supposed to be unlocked, BUT, every SIM card I get from Straight Talk gives me "INVALID SIM CARD" when I boot up the phone then a black screen comes on with a subdued color message saying, "Sim network unlock PIN" and all the help from Family Mobile, T-Mobile, Straight Talk, Walmart and AT&T, have not helped my situation. I can't write a new APN and store it because I have an invalid SIM card. I have tried the service mode and did everything mention in these forums but no luck so far.
I really like the device(my NOT-Phone) but it does not function as a phone. Can anyone help with this one?
:crying:
Click to expand...
Click to collapse
No warranty in Walmart?!

If it connects to T-Mobile towers out of the box, can you borrow a T-Mobile SIM from soneone and go through the SIM unlock procedure? I'd do that just to make sure it's SIM unlocked. Then try Straight Talk with whatever APNs they use. Do this on stock and once you can confirm you get that far and it's working then go crazy. Good luck.

Locked SIM card
Daistaar said:
If it connects to T-Mobile towers out of the box, can you borrow a T-Mobile SIM from soneone and go through the SIM unlock procedure? I'd do that just to make sure it's SIM unlocked. Then try Straight Talk with whatever APNs they use. Do this on stock and once you can confirm you get that far and it's working then go crazy. Good luck.
Click to expand...
Click to collapse
If I put the original, 1st SIM (Family Mobile) that I bought, back in, I do not get the Unlock Sim code message but I also do not have service because I already had the number ported. I've been that route. I tried the APN routine but it won't save because I don't have service with that SIM card. I go into the unlock routine through the service mode and it says it's already unlocked. Any Sim card from Straight Talk gives me Invalid SIM.
I'm going to return it to Walmart and try another phone.

Swith to tMobile w/o Root?

According to one of the mods at Android Central you can switch a 900v to tmobile and get full lte speed by manually changing the apn. No need to switch to band 4. Is this true? Has anybody done it? I would love to stick in a tmobil3 sim and try it while retaining the option to go back to vzw unlimited data if tmobile signal is unsatisfactory. Thanks for your help!

900v on Tmobile
I have tried my wife's t-mobile $30/month no contract Sim card in my Sm-900v and it works great. I got 4g lte and the down load speed was 43mb. It was faster then my Verizon speed of 15mb. The t-mobile Sim card automatically stored the apn on the phone but if it does not just manually add the apn.I did verify that my band 4 was already enabled.. Band 4 has to be enabled to use on T-Mobile BUT you do not have to disable band 4 if you want to go back to verizon leave it alone. For what i understand Verizon enables band 4 out of the box so just get a cheap pre- payed card and try it out for a month. Hope this helps you out.

So no need to call for unlock code? Tmobile guy said they woildnt give me a sim without it

recDNA said:
So no need to call for unlock code? Tmobile guy said they woildnt give me a sim without it
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Click to collapse
I bought my phone used so I do not know if it was factory unlocked.. 2nd you can just go to any store that sells t-mobile sim cards and buy a prepaid Sim card. I bought mine online from t-mobile (out of convenients) they mailed it to me.. no need to go to t-mobile store. Again buy a cheap Sim to test on your phone. Worse case if your phone is carrier locked you will only lose $30. Or if you have a friend with a different carrier try there Sim card to see Iif your phone is unlocked or not. Also you can just call Verizon customer support and just ask for the unlock code it's free.

Where does the code go? Is there a setting where?

As soon as you install new sim card and reboot phone first thing it will ask you for a unlock code.. you will enter code on same screen. If it does not ask you for a unlock code then your phone is not locked then enjoy your new tmobile phone.
Sent from my SM-N900V using XDA Free mobile app

Thanks for the 411.

No problem hope it helps you.
Hit the thanks button if i helped you