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11″ MacBook Air A1370 top case Keyboard Diagnosis and Solution

* Does this keyboard comes with backlight ? Yes , it Does have Backlight
* What Does this keyboard layout ? It has English layout
* What Year is MacBook Air A1370 ? Basically 11″ MacBook Air A1370 comes in two years model late 2010 and mid 2011
* Can Replace the trackpad on the MacBook Air A1370 ? Yes , as long as you can source the whole replacement keyboard and have  knowledge of Basic electronic repair
* How can i diagnosis and troubleshoot my MacBook Air KeyBoard ?
On your Mac, click the Input menu in the menu bar, then choose Show Keyboard Viewer. If the command isn’t shown, choose Apple menu > System Preferences, click Keyboard , click Input Sources, then select “Show Input menu in menu bar.” Click the Input menu in the menu bar, then choose the input source for the language whose keyboard you want to view. 2 Press the key on your keyboard that corresponds to the character shown in the Keyboard Viewer, or click keys in the Keyboard Viewer. Press a modifier key, or a combination of modifier keys, to see special characters or symbols you can type. For example, press and hold the Option key or the Option and Shift keys. An orange outline appears around dead keys, modifier keys that can be pressed with another key to enter a letter with a diacritical mark.
* your Mac doesn’t respond to key presses
A: Disconnect and reconnect the keyboard. Make sure the connector is completely inserted into the port.
B: Connect your keyboard to a different USB port or to a different Mac. If this solves the problem, your Mac may need to be repaired.
C:  Connect a different keyboard to this Mac. ”
* Dose Apple offer Keyboard Service Program ? As long As you have Valid Apple warranty you may contact or visit local Apple store most of the time they offer some solution depends to the situation
* How to fix unresponsive keyboard keys:
A: Unplug the keyboard and plug it back in.
B:  Try a different cable. C: Replace the batteries.
D: Clean the keyboard.
E: Blow out the unresponsive switch.
F:  Use contact cleaner.
G: Inspect the solder joints.
H: Replace the switch.