Telecom BlackBerry mobile Phone roaming considerations

1. Mobile ROM Upgrade

Check ROM version: ALT + AA + H (on the main screen, left hand press the lower left corner two keys, right-hand press H, see help me in the page inside of the app version of the brackets inside, such as 9650 the latest 1816 version)

Rom Download address: http://cn.blackberry.com/support/downloads/download_sites.jsp

2. Mobile SIM Replacement

Ask the Telecom Account Manager

3. After going abroad, the mobile phone above the GSM network format, rather than the default global (worldwide), 1xEV

(Vodaphone's network)

4. Go abroad, or domestic high-speed rail, frequent switching network, there may be some failures, such as signal display SOS, lowercase 3g signal problems

Solution 1: Long hold down the lower right corner of the turn off the phone button, hand machine, and then long hold down the lower right corner of the phone button, the phone boot;

Workaround 2:power Cycle-Unplug the battery, insert the reboot, boot speed depends on CPU speed.

SMS prompt:

You are using the old Uim card, in order to prevent you from roaming abroad can not communicate, it is recommended that you upgrade to the new Sky Wing international card. After the card change, roaming 258 countries and regions to enjoy the arable land tariff, please hold valid documents to the Telecommunications business Hall free processing.

Country diffuse detailed Business introduction please login http://manyou.ct10000.com/