: Open System Settings > Bluetooth . Ensure Bluetooth is "On" and click Connect next to your mouse's name.
The "BT52" refers to Bluetooth 5.2 , which is a wireless communication standard rather than a specific mouse model from a single manufacturer. Because Bluetooth is a standard technology, most Bluetooth 5.2 mice are "plug and play" and do not require a specific software driver to function. bt52 mouse driver
Often the included CD or download contains: : Open System Settings > Bluetooth
Use psm driver; modify psmattach() to accept BT52 ID 0x00 or 0x03 . bt52 mouse driver