it tells me no trackpad found, how I can fix out
how I can fix out my Macbook Air tung pad quiet working, also cannot connect my wireless mouse
Generally speaking if two inputs fail they may or may not be related.
Older machines may have a CMOS battery that prevents peripherals from working.
Spills or drops can affect trackpad.
Wireless mouse if battery is out in mouse, or the USB connector is not connected that came with the mouse will not work. Some mice use Bluetooth. Use a wired mouse to make sure Bluetooth is enabled and connected to make sure that it is able to pair and see the mouse if it is Bluetooth mouse. Apple menu -> System Preferences -> Bluetooth.