: Update 7.1 introduced BlackBerry Tag , which used NFC (Near Field Communication) to let users invite BBM contacts or share photos simply by tapping two devices together. It also unlocked an FM Radio app previously hidden in the hardware.
: BlackBerry 7.1 was the final major OS version for this device series. Most modern apps and web services (including BlackBerry World blackberry bold 9900 software update 7.1 download
This installs the firmware files into your system's common files directory. 3. Delete "vendor.xml" (Critical Step) : Update 7