Everyone who has found this kind of problem such as locked their phone , here is a step by step guide to unlock the phone. This guide is useful, especially on the BlackBerry Curve 3G.
Before the release, you need an unlock code before it opens to the BlackBerry. You can buy the code from various unlock code source. Sometimes, the release of his contract as requested by the supplier.
Here steps to unlock your BlackBerry Curve 3G:
• Tap Settings, ->Options, or (depending on your folder structure) (Figure 1)
• Select the Advanced Settings (Figure 2)
• Select on the SIM card (Figure 3)
• Type mepd – you may not see what you write, so you must make sure that you enter the code correctly
• Type mep2 – again, you may not see what you write, so just type in the European Parliament, press the Alt key and press the 2 button (whether the keyboard)
• Enter the UNLOCK code purchased / received
The last two instructions care-sensitive and must be typed in lowercase.
After that, you are free to any GSM SIM card based. However, there are several cases that the devices only work in certain networks. For example, the T-Mobile only works on T-Mobile 3G service and not AT & T 3G. There is a nice test.