1. The positive and negative inputs cannot be inserted in reverse, as inserting them in reverse will burn the motherboard. Input is a 7-30V battery. 2. When installing, the circuit board should face upwards. If the back is facing upwards, the remote control needs to enter the menu settings. The GPS module arrow direction should face the bow of the ship, the antenna should face upwards, and the GPS module should be kept away from the motor and magnetic interference. 3. According to the battery voltage of the boat, set the low battery alarm value and full battery voltage value. 12V batteries are generally set to 9.8V and 12.6V, while 24V batteries are generally set to 19.8V and 25.2V, which can be adjusted appropriately according to usage. 4. The overcurrent protection value of the boat is the maximum overcurrent protection for a single motor. Some receiving boards have overcurrent protection, while others do not. 5. Support switching between Chinese and English. 1. Waterproof measures should be taken to prevent water from entering the motherboard. It is best to wrap the remote control with cling film to prevent water from entering, otherwise it may cause the remote control ship to lose control or burn down. 2. After wiring is completed, carefully check before powering on. When powering on, pay attention to fixing the hull and avoiding the propeller to avoid scratches. 3. It is not compatible with other manufacturers' remote controls and motherboards and needs to be used together. 4. When indoors or just starting up (GPS module needs to be cold started for 1-5 minutes), the flashing light may appear because there is no GPS signal, and in this state, fishing points and return points cannot be set, nor can they be navigated to fishing points or return points. 5. The remote control may lose its wireless signal if it is too close to the boat because the signal is too strong and saturated. Therefore, the remote control should be at least 1 meter away from the boat when pa