In order for these services to work on your BlackBerry smartphone you need to make sure you have the BlackBerry Booster. Adding a BlackBerry Booster to your account costs from as little as £5 per month for pay monthly customers. You can also get a pay as you go BlackBerry with six months' internet and email included for £149.99

If you're over 18, you can remove Content Lock in two minutes. All we need are your credit card details or name and address, so we can verify your age (it won't cost you anything). You can confirm your age by:

• Trying to access a blocked site and entering your details
• Dialling 1818 from your T-Mobile phone and following the prompts

Receiving emails on your BlackBerry while abroad will no longer be free, which means you could run up a larger bill. To avoid this, you must disable all data services, which will still allow you to receive calls and texts.

Go to Options and select Mobile network and then Data services. Change the option to Off when roaming.

This will automatically switch the email service off when you leave the country and back on when you return.

Some older BlackBerry devices (such as the 7100g, 7130g and 7290) do not have this option.

Turning off the data service will also stop you being able to access the internet or send picture messages.

Make sure you've put your SIM card into your new BlackBerry and have received a registration message. If not, go to Options > Advanced options > Host routing table, click BlackBerry menu and select Register now.

Select Setup from the BlackBerry menu and then Email settings. You can then follow the device change wizard to set up your BlackBerry account to work with your new smartphone.

For security reasons, once you've changed your device you need to validate your email account/s again. Go back to the Setup menu and Email settings to re-enter the passwords for your email account/s.

Emails should begin to arrive on your new BlackBerry shortly after.

Check that:

• The wireless is switched on and you are in an area of coverage
• Your device shows 3G or GPRS
• Reboot your device by removing and re-inserting the battery
• You've set up an instant email account and included your email address
• Your email account is still validated when you go to Setup > Email settings

BlackBerry Protect is a free application designed to help you find your lost BlackBerry smartphone, and keep the information on it secure. It can also offer peace of mind for small businesses and families, with the ability to protect multiple smartphones.

BlackBerry ID is your single, master key to BlackBerry products, sites, services and applications, offering you:

• Simplified access
• Privacy and security controls
• A personalised and customisable experience

For PC users:

BlackBerry Desktop Software for PC coordinates the link between your smartphone, tablet, email accounts, calendars and more. With BlackBerry Desktop Software 6.0, managing this link is even easier.

For Mac users:

BlackBerry Desktop Software for Mac syncs your contacts, calendars and appointments between your computer and smartphone. It also allows you to transfer videos, iPhoto albums, and iTunes songs and playlists.