If your MacBook Air is not starting up or is crashing, it may need a repair. There are many things that can go wrong with a MacBook Air, ranging from simple things like a loose connection to more serious issues like a torn motherboard. 

If you are in the market for a new laptop, the MacBook Air is a great option. It's lightweight and portable and has many of the features of more expensive laptops. You can also get the #1 Apple MacBook Air Repairs In Sydney CBD via iExperts.

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Here are some tips and solutions for common MacBook Air repairs:

1. Fix a broken screen: If your MacBook Air screen breaks, there are a few solutions. You can replace the entire screen assembly or just the glass panel. If you just need the glass panel replaced, you can buy a replacement from Apple or an online store.

2. Fix a frozen keyboard: If your keyboard stops working, there are several solutions. You can try to fix it yourself by removing the screws that hold the keyboard in place and replacing the key switches. Or you can take it to an Apple store for repair.

3. Fix a broken trackpad: The trackpad on most MacBook Airs is prone to breaking. If yours does break, there are several solutions. You can buy a replacement trackpad from Apple or an online store, or you can try to fix it yourself by replacing the trackpad cable or springs.