Press button "AB" at the same time. When the LED flashes and turns off, click "B" button for 3 times (meanwhile "A" key still holding on all the time). When the LED flashes, the memory code is erased.

Press the 2 buttons of the original & clone remotes, which need to be placed nearby. Press the 2 buttons at the same time; when the LED indicators flash all the time, then release them.

Press the cloned-button on the clone remote. If the LED indicator turns on all the time, that means the code is cloned successfully. Clone other codes from the original remote by following the steps.

If you erase the code by mistake, you can recover it by pressing buttons C & D at the same time for a duration. When the LED flashes, the codes are recovered.