browsing at feeds.braiins-os.org for g19 I only see SD not SSH and the miner is in a remote location, according to the documentation:

Transitional firmwares
The table below outlines the correspondence between transitional firmware image archives (as provided at https://feeds.braiins-os.org/) and a particular hardware type.

Firmware prefix   Hardware
braiins-os_am1-s9_*.tar.gz   Antminer S9, S9i, S9j; (R4 support is broken do not USE!!)
braiins-os_dm1-g29_*.tar.gz   Dragon Mint T1 with G19 or G29 control board *
*NOTE: transitional firmware for Dragonmints T1 with G19 control board is no longer provided as it is fully compatible with G29 transitional firmware.

It says that it is compatible ??