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No internet when using Rebel sim card

Hi friends,
I recently bought a HTC HD2 locked to T Mobile in UK. I used a Rebel sim to unlock it and I am now using it on O2.
However I am not able to start internet, neither can I receive settings from O2.
The message that gets displayed tell the phone as pre set T Mobile internet settings and these cannot be changed
Is there anyway I can bypass these? Anyone else faced same thing before?
Thanks
Metal

can't you manually change the apn to that of o2?

Rudegar,
Thanks for your reply.
I cannot change the apn as all the settings are for T Mobile and I cant change them.
I tried using all the settings but no use. I can start the internet using Wifi but not through operator internet.
When I go to the new connection set up I am asked to select country (i select as UK), then I am asked to select operator and only option I have is T - Mobile.
Besides when I click on any browser, I get the T Mobile flash screen and then the browser starts.
I get an error as I am not a T Mobile customer. I have a link for settings there. When I click that it says -
This connection is pre configured. It cannot be modified.

Finding lost phone.

Hello, my sister lost her phone. Is there a way to recover it ?
The gps was off when the phone was lost.

In India there Is a way to to find a lost phone which is switched on and has a Sim card inserted then we can contact Sim provider to get the location of phone
Try this if possible as quickly as possible as if the phone gets discharged there is no other way
Sent from my GT-I5800 using xda app-developers app

I did try, the carrier is Vodafone and i was told that they can only block the sim card from being used. So no luck there.
Thanks.

Wished you had Where's my droid app. It switches the gps manually when we send the command through SMS. Or did you turned mobile tracker?
Since our phone has a gps, there should be some app in that phone which can track, possible a anti virus like Lookout?

Unfortunately she didn't have any apps like that. What is mobile tracker ?

25. What is Mobile Tracker and how to set it up? (Highly recommended // Enabled it in case you lose your phone) (for Kyrillos rom v9.4+)
- The Samsung Galaxy 3 comes with a mobile tracker software by default which is not activated, as you need to register your phone and account with the Samsung online website. Only then the option works and your phone goes more safer, as the Mobile tracker is one of the best options to use when your phone is stolen or lost.
The Samsung Dive mobile tracker is something that helps you remotely work on your phone when it is stolen. The online website of its helps you in remotely swiping the phone and delete delete your private data. Though this service is not available in India, a few features of its work, like prompt SMS sending when the phone is used with any new SIM than that which was used to register with the mobile tracker. The app also helps in getting the location information of the phone.
- How to set it up (source):
α. Go to Applications => Settings section in the phone. Select Location and Security tab in it.
β. Scroll down in the menu in Location and Security, and you will see a section for Mobile tracker. Here you need to hit the “Set Mobile Tracker” option which will set the mobile tracker recipient and control the remote phone that is activated. It will take you through the process of registration and set-up of the mobile tracker.
γ. The first thing you need to set is the mobile tracker password which would be asked to you or anyone who changes the SIM in the phone. It has to be of 8 digits and all numeric characters in it. You need to remember this password for always, as it can get your phone locked if you forget it and type the wrong password multiple times.
δ. After you set the password, you need to add recipients to whom the phone sends an SMS from the new SIM to notify/alert them about the changes made in the phone.
ε. Set the information of the sender, i.e. the Sender name and the message to be sent to the recipient. And then agree to the terms.
στ. Login through your Samsung account, and if you have not registered to it, you can do that for free online by registering the product. And then you would be directed to the mobile tracker settings where you can change any recipient or make changes in the samsung account.
ζ. After everything is setup, go back to the Settings section, and into the Location and Security section. There you have to check the “Mobile Tracker” option, so that it is activated.
Note: If at all you have reset your phone through the factory reset option, all the information in the Mobile tracker is lost. You need to set it all over again.
- Now if you lose your phone or somebody stole it, you can track it and/or lock it and/or wipe all your private data in SamsungDive.
Original link - http://forum.xda-developers.com/showthread.php?t=1058071

If it has a internet conection you can try this: https://play.google.com/store/apps/details?id=com.lookout.labs.planb

[Q] Can't make call and message .but only work mobile internet.

Hello everyone, dose anyone had same problem like this ?
After CM12 update ,I can't make or receive phone call and message but I still can use my mobile internet without conneting wifi. When I press call it said " no mobile network avaliable " . I can use that simcard in another phone and got full service . checked all APN setting is correct .
And I can see the full signal service block in upper corner of the phone . still when I make call it show " no mobile network avaliable ".
Tried a lot of ROM and different modem already .
Now on oxygen ROM
Tescomobile uk
Any idea guys ?
Thanks

[Q] [solved] notification delyaed when on LTE

Hi everyone, sometimes my phone just doesn't receive real-time notification like Whatsapp messages when connected to the cellular network (WiFi works fine); the data usage settings are already without any restriction and the app don't have data restrictions.
Once I set-up all the restrictions I need and I fear something remained, but it doesn't seem to be in an obvious place.
Marshmallow edit: apparently it was something related to Android restrictions that even if they were not shown were still there. If someone has this issue just reset all the app settings and it should work.
Any idea?
Tya,
Marco

Mtk87 said:
Hi everyone, sometimes my phone just doesn't receive real-time notification like Whatsapp messages when connected to the cellular network (WiFi works fine); the data usage settings are already without any restriction and the app don't have data restrictions.
Once I set-up all the restrictions I need and I fear something remained, but it doesn't seem to be in an obvious place.
Any idea?
Tya,
Marco
Click to expand...
Click to collapse
Are you using straight talk? If not what carrier? Straight talk, for example, closes ports after a period of time of inactivity. Which is why I left them over a year ago among other things, but mostly that.

I'm on T-Mobile, but I was on T-Mobile too 2 months a go with a different data plan and I don't recall it was happening.
Sent from my Nexus 5 using XDA Free mobile app

Security problem with rooted mobile

Hi
I have rooted my mobile phone (FP1) - so no problem - I can use a good firewall and block unwanted "phone home calls".
When I try to log in (username and password) on a platform with Firefox I always get the notice that my mobile phone is rooted and that this is a security risk.
Really? What is the risk to log in with a rooted mobile phone?
Thanks.