Please see the attachments to get the firmware files for Lite Radio 2 SE.
The file name including SX1280 is the firmware for ELRS version transmitter.
The file name including CC2500 is the firmware for Frsky version transmitter.
Please upgrade your Literadio 3/2 SE to the latest version before replacing Hall Gimbal. For the Litereadio 2 SE without BETAFPV configurator supported sticker (old version Literadio 2 SE) and Literadio 2, upgrading the newest firmware is unavailable, which is not compatible with the hall gimbal and only supports the potentiometer gimbal.