This is a great explanation on how garage remote keys work and how to copy them in spanish.
How to make copy of garage door remote.
Place your original remote next to copy remote.
Hold down the button on the current remote red led will light up and meanwhile press the button on the new remote that you wish to programme.
Hold both buttons down until you see led on copy remote flashes quickly.
Press and hold down the button on original remote that you wish to program onto the corresponding button on copy remote and then press and hold down the corresponding button on copy remote.
I ve already captured the signal that it sends ask 318 mhz.
Hold both buttons down until you see led on copy remote flashes quickly.
The ctx is a cloning remote control transmitter that can duplicate your existing automated gate or garage door remote control transmitter.
Link your current remote to the new one using the connector delivered with the remote copy the code.
It depends on the brand of the garage opener unit.
Some brands are compatible with universal remote you can buy at the home depot or lowes.
Press and hold down the button on original remote that you wish to program onto the corresponding button on copy remote and then press and hold down the corresponding button on copy remote.
How to program extra or spare garage door opener remote diyuniversal garage door opener remote.
Place your original remote next to copy remote.
The ctx has a lear.
You might need to open the receiver box in your garage and press a button on the board to add your new remote control to the list of allowed remotes.