I want to upgrade: How to find and download the BlackBerry's official operating system

Question: Kerosene often has to find and download the latest ROM to give its beloved BB brush machine, then where to find the corresponding official ROM it.

Reply:
Many of the BlackBerry friends go to Google, or the jar inside to find.

Quick approach, take 8900 for example:

Go to BlackBerry official website http://na.blackberry.com/eng/support/downloads/download_sites.jsp
Click China Mobile Hong Kong Company Peoples, or Singapore Telecom Singapore Telecom Mobile Pte LTD
Then select the 8900 phone, select the appropriate eastasia rom download.

The correct approach is as follows, taking 8900 as an example:
1. Find 8900 of the operators on the Www.blackberry.com product website
2. Locate the carrier on the www.blackberry.com download website, click Go to Find 8900, then download the appropriate ROM

Details:
1. Find 8900 of the operators on the Www.blackberry.com product website
Visit the BlackBerry website
http://www.blackberry.com/
Select the top left corner of the first column smartphones
http://na.blackberry.com/eng/devices/
Choose 8900 Phone
Http://na.blackberry.com/eng/devices/blackberrycurve8900/
Select where to Buy and see the T (in fact, Singapore Telecom Singapore Telecom Mobile Pte Ltd also sells) has sold 8900
http://na.blackberry.com/eng/devices/blackberrycurve8900/curve_wheretobuy.jsp

2. Locate the carrier on the www.blackberry.com download website, click Go to Find 8900, then download the appropriate ROM
Visit Web site access your service provider download site
http://na.blackberry.com/eng/support/downloads/download_sites.jsp
Click on the China Mobile Peoples Telephone

(or, T, or Singapore telecom Singapore Telecom Mobile Pte Ltd)
Then select the 8900 phone and select the appropriate Eastasia ROM, such as BlackBerry handheld software v5.0.0.1168 (Eastasia).