The is a specific sub-model. While all Q5 models look identical, the SQR100-2 is designed for specific network bands:
The BlackBerry Q5 (model ) is a legacy BlackBerry 10 device. Since official support for BlackBerry 10 software ended on January 4, 2022, standard over-the-air (OTA) updates are no longer reliable. Recommended Firmware Version blackberry q5 sqr100-2 firmware
: The SQR100-2 cannot run OS 10.3.3 beyond the last signed build due to revoked code-signing certificates. The is a specific sub-model