Rarely. Due to the OTP 0 bootloader, downgrading may brick the device. Only upgrade if you have a specific need.
Installing the latest software (often designated with 2023 dates) for the 1506T V1.0 OTP 0 brings several improvements over older, factory-installed firmware: 1. Enhanced IPTV Functionality dvbs 1506t v1 0 otp 0 new software 2023 download