Chips could be copied: 2260;2262;PT2264, 5326;SC5262, HT600, HT680, HT6207, HT6010, HT6012, HT6014, SMC918series,527;1527;2240;HCS101, HCS200/HCS201(part code),HCS300/HCS301(partial code), part single chip microcomputer.......... Code cleaning method: the unlock button and lock button at the same time(some shells are the up button and down button), after the LED indicator light flashes three times, loosen any one of the buttons while the other is pressing, then push the released button three times, the LED indicator enter into the fast flashing status. At this time all the memory data is cleared, the cleaned remote control not have lighting LED indicator no matter which button you . Copy method: One hand keeps the original remote controller, while another keeps the copy remote control, the two remote controls should be placed as closely as possible (the ideal situation is to put the two remote controls on the desktop side by side with zero distance), respectively down the copy button, when the LED indicator light flashes quickly after three flashes, this copy is successful, other key operating methods are the same. Some remote control has a smaller transmitting power, so the original remote control should be placed back to the copy remote control to be operated. For the presence of noise, it should avoid interference to operate, If the copy is not successful, it should recopy after clearing code. Specifications: Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour: Black Material: Metal Package Contents: 1 x Garage door remote Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.