Grandstream IP PBX

I am seeking an experienced professional to assist with the migration of settings from a Grandstream 6104 IP PBX to a Grandstream 6304. The task involves performing a backup of the configuration from the old device and subsequently uploading this data to the new unit. Attention to detail is essential to ensure a seamless transition without loss of settings or functionality. Familiarity with Grandstream devices and their configuration processes is required. Please provide your expertise in executing this migration efficiently and effectively.