When the Xiaomi Focus Pen Pro is not connected to the tablet and remains idle for an extended period, it automatically enters sleep mode to conserve battery. In this low-power state, the stylus cannot reconnect or communicate with the tablet, which can appear as a temporary connection failure.
To restore connectivity, place the stylus on the tablet’s magnetic charging area. This action wakes the stylus and allows it to reestablish the connection, after which normal functionality is fully restored. This behavior is intentional and helps preserve battery life, ensuring the stylus is ready for use when needed.