How do you know your phone is blacklisted

its not good news the phone is blacklisted in the united kingdom which is why the phone was locked to Telstra as soon as it was brought back into the united kingdom the blacklisted phone company has restarted the blacklisted barring and hence froze the phone.
before despairing try a few things first try taking to a mobile phone shop and ask them to unlock it if they refuse take it to a market stall mobile phone unlocking stall and they will do it for you however if the phone is blacklisted/barred in the united kingdom you will not be able to make or receive calls. and they do charge. try taking the chip out and booting the phone up without the sim card in and changing the network settings and see if that works .hope this helps

What do you mean by black? Is it blacklisted, if so then, Blacklisted phones cannot be network unlocked because it is referred to be stolen and reported to the company. So dont waste money trying to buy codes it wont work. In future dont buy such products from anyone.

Incase you need help for network unlocking you can consult with this webstore: www.guaranteedunlock.com

They are best.


Thank you

The answer is that there used to be a connection before O2 and Vodafone started blacklisting handsets! Orange and T-Mobile have been blacklisting handsets for a long time (It is only recently that O2 and Vodafone also started blacklisting handsets).

NB Orange & T-Mobile always lock their handsets!(e.g. an Orange handset will only accept an Orange SIM and will not accept an O2, Voda or T-Mobile SIM)

So if you reported your Orange or T-Mobile handset missing to your network it became barred/blacklisted! BUT it was only barred on your home network. Therefore unlocking the barred handset would enable it to work on every network except the one it was originally locked too! Therefore the phone still had some commercial value, as it would function on at least 3 out of the 4 networks.

It wasn't long before Orange and T-Mobile began to combine their individual blacklist databases. Therefore a phone barred on Orange was also barred on T-Mobile and vice versa. Even at this point the barred handset could be unlocked and used but only on 2 out of a possible 4 networks (O2 & Vodafone).

The government eventually stepped in and forced O2 and Vodafone to update their systems and introduced the CEIR. Now that all the networks share a central blacklist database, even if a barred handset is unlocked it still remains useless on ALL UK networks!


Hope that helps.

Mike

since you master reset the phone it may erase everything on the phone even the settings installed, you have to consult your service provider to re configure your network settings.

if the sim is definately ok and the phone isnt in flight mode, the Phone may be faulty, blacklisted or not designed to be used in your region (eg gsm phone in cdma only area)
Ask your service provider (people who suply your sim card) if your IMEI (type *#06#) is blacklisted, if so the previous owner has registered it lost or stolen or not paid their bill

if the sim is definately ok, Phone is faulty, blacklisted or not designed to be used in your region (eg gsm phone in cdma only area)
ask your service provider if your IMEI (type *#06#) is blacklisted, if so the previous owner has registered it lost or stolen or not paid there bill

I recommend you contact your service provider.



Blacklisted or Barred Handsets

What is it all about???
A phone may be blacklisted (or barred) for many different reasons, but the most common reason is that it has been reported either lost or stolen! It is only the networks (Orange, T-Mobile, O2, Vodafone etc) that have the facility to blacklist a handset.

If you are unfortunate enough to either lose or even worse have your phone stolen you should report it to your service provider (your network) immediately!
Your service provider can then blacklist the handset so that it can no longer be used to make or receive any calls. The networks do this by adding your phones serial number onto a national blacklist database (Central Equipment Identity Register). Effectively the handset becomes absolutely useless and the thief is in possession of a pretty paper weight! :-))


So How Does Blacklisting Work?
Every mobile phone has a unique serial number. This serial number is called the IMEI number (International Mobile Equipment Identity). It can normally be found underneath the phones battery and it is 15 digits long.

Now each time you switch your phone on or attempt to make a call the network systems check the IMEI number of the handset you are using. At this point the IMEI number of your handset is cross referenced with the Central Equipment Identity Register. If the IMEI number of your handset is on the CEIR then the network will either:

1) Refuse to send a signal to your phone (No signal strength at all)

2) OR WILL supply a signal but will not allow any outgoing or
incoming calls.

If your IMEI number is on the CEIR your handset is blacklisted and therefore useless.

If you know the IMEI of your phone you can have it blacklisted by your Network Service Provider. The phone can also be traced by the police, to find the thief.
Blacklisting:
This is not a security code, but it works like one! To help combat mobile phone thefts, the networks share a database of the IMEI (International Mobile Equipment Identity) of mobile phones that have been reported stolen. Once a phone is on this list, it will not be allowed to use any of the networks.
This can be a risk if you buy a second-hand phone, because if it has been stolen, or if an unscrupulous seller makes an insurance claim after selling, the phone you bought in good faith may be permanently disabled.
Be very careful to check the source of a second-hand phone!


"All generalizations are false, including this one."

My Friend, you have to remove the network lock!!! Coz every country has a different network locks???? If problem persist then you have to change the network IC…

Regards,
DRSS