Solve JJRC H31 RC drone transmitter issues
For the JJRC H31 quadcopter transmitter issues such as no reaction, cannot control the drone, indicator flashing, this fixing guide can effectively solve these cases. The transmitter has no reaction even after installing battery. ● Please check whether the positive and negative terminals of battery are installed correctly. There is a mark in the battery case, follow the indication to install them. ● Check whether the batteries install tightly. If some of them are loosened, the electric circuit cannot be connected as well. ● Maybe some of the batteries already run out of the power. Simply change four new batteries to have a try. ● If the above conditions are eliminated, the most possible reason should be the transmitter is broken or the inside electric circuit/cables have something wrong. Please take it to an RC store to check and fix. The transmitter cannot control the drone (indicator is lit). ● The first condition might be the transmitter and the drone are not paired