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UPGRADING AND PROVISIONING
Unified Firmware
The GRP2612 / GRP2612P / GRP2612W / GRP2613 / GRP2614 / GRP2615 / GRP2616 support unified
firmware for all GRP2600 models.
Figure 12: GRP2600 Unified Firmware
Dual-image Firmware
The GRP2600 series support dual-image firmware allowing to store two copies of firmware on flash to avoid
bricked device on unsuccessful upgrade and down time.
The user can rollback to previously loaded firmware from phone’s Menu → System → Alternative
Firmware, and press “Rollback”.