1. Briefly press the 10 key to switch to the desired operating mode. Determine the currently selected mode by the LED flash pattern (1, 2, or 3 respectively). Note: Calibration must be performed with the cover closed. In Mode 1, press and hold the IO key for one second to calibrate PRO series models A2141, A2442, A2485, A2779, and A2780. If calibration succeeds, the LED will illuminate for 3 seconds. In Mode 2, press the IO key for one second to calibrate AIR series model A2681. If the calibration record is successfully completed, the LED will illuminate for 3 seconds. A2780. If calibration succeeds, the LED will illuminate for 3 seconds. In Mode 2, press the IO button for one second to calibrate the AIR series A2681. If calibration records are successfully completed, the LED indicator will illuminate for 3 seconds. In Mode 3, press and hold the 10 key for one second to activate the sleep angle recognition function (LED illuminates when the cover is open; LED turns off when the cover is closed)
2. Before operating in Modes 1 and 2, the tool checks the device via LED flashes. If no sensor is connected, the LED flashes 3 times. If a sensor removed from another device is connected, it flashes 6 times. 2681 and 2941 models with pre-programmed ribbon cables require no programming and can be installed directly without angle adjustment. Only blank ribbon cables support reprogramming; these can be reprogrammed multiple times to overwrite previous settings. Original pre-programmed ribbon cables cannot be reprogrammed
3. Compatible Models:
- For MacBook Pro 14-inch / 16-inch: A2141, A2442, A2465, A2779, A2780, A2961, A2592
- For MacBook Air 13-inch: A2981, A3115, A3240
- For MacBook Air 15-inch: A2941, A3114, A2241
4. Weight: about 19.7g
5. Size: about 6.9 x 5.2cm