[. . . ] You must replace them with new batteries to ensure proper functioning. Refer to the DEVICE CODE LIST, look up the 4-digit Device Code which corresponds to the brands of your A/V equipment. If there are more than one Device Code listed under your brand, try from the first code. [. . . ] ­ You are recommended to jot down your Device Codes in the space provided on back label after setting up the URC correctly for future reference. If you cannot identify a correct Device Code for your equipment from the Device Code list, you may search the code through the library:1. Hold down " P+ " and " VOL­ " on the URC together simultaneously for 2 seconds until the indicator lights up. Press TV device mode key, then press " P+ " and " VOL­ " , and enter TV Magic Search Code 0001. Hold down " P+ " & " VOL­ " together simultaneously for 2 seconds until the indicator lights up, and your URC is ready to start searching. TV), press the " " key repeatedly, slowly and patiently until the device has been turned off. Once your device has been turned off, immediately press " P+ " and " VOL­ " to lock in code and the indicator should go out. * Simply repeat the above setup procedures to search the Device Code for your SAT, DVD or CTV. (Remember to press a correct Device Mode Key and correct Magic Search Code in step 2-5 above) IMPORTANT: ­ If the power on/off function of your device is not infra-red controlled - you need to follow steps 2 to 6 above and start searching :· Press " " and another important function key alternately until your device responds to the expected function, press " P+ " and " VOL­ " to lock in the code. Note: ­ DVD, CTV and SAT can be searched and locked into any device modes except "TV" mode. Just simply press the corresponding device mode key in step 2 & 5 and enter an appropriate Magic Search Code for your DVD, CTV and SAT. ­ Each time you press the " ", the URC will skip to the next code and send out a POWER signal trying to turn off your device. If you failed to stop pressing " " in time when your device has been turned off, turn on your device again immediately. Before the indicator goes out, press " " on the URC to skip backward. ­ If the indicator flashes twice after your pressing of " " key, you are already at the last code of the library. Press " P+ " and " VOL­ " to resume the URC and repeat carefully the above procedures to search again. [. . . ] Check whether your batteries are inserted properly and are in correct +/- marks. Check whether you have pressed the corresponding device mode key for your device. If several Device Codes listed under the brand of my A/V device, how can I select the correct Device Code? [. . . ]