I'm thinking you are talking about the bag that you heat in the microwave for apply heat to the glass. It';s an OK tool but slow and probably very good for a beginner. Using a heat gun takes some practice. It is very easy to over heat. On a product with an LCD-LED display, overheating and damage the display and you get white areas. I am speaking from experience because I have done it. On a MacBook Pro you can melt the clutch cover, melt the rubber gasket. I like to soften one corner then put a plastic card or guitar pick in. That puts upward pressure on the glass. The I slowly heat the glass closest to the pry oil it starts to release. I am allowing moving the heat back and forth to prevent hot spots. As it comes loose I insert more picks to help hold it open and so it will not restock as it cools back down.
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I'm thinking you are talking about the bag that you heat in the microwave for apply heat to the glass. It';s an OK tool but slow and probably very good for a beginner. Using a heat gun takes some practice. It is very easy to over heat. On a product with an LCD-LED display, overheating and damage the display and you get white areas. I am speaking from experience because I have done it. On a MacBook Pro you can melt the clutch cover, melt the rubber gasket. I like to soften one corner then put a plastic card or guitar pick in. That puts upward pressure on the glass. The I slowly heat the glass closest to the pry oil it starts to release. I am allways moving the heat back and forth to prevent hot spots. As it comes loose I insert more picks to help hold it open and so it will not restock as it cools back down.
I'm thinking you are talking about the bag that you heat in the microwave for apply heat to the glass. It';s an OK tool but slow and probably very good for a beginner. Using a heat gun takes some practice. It is very easy to over heat. On a product with an LCD-LED display, overheating and damage the display and you get white areas. I am speaking from experience because I have done it. On a MacBook Pro you can melt the clutch cover, melt the rubber gasket. I like to soften one corner then put a plastic card or guitar pick in. That puts upward pressure on the glass. The I slowly heat the glass closest to the pry oil it starts to release. I am allowing moving the heat back and forth to prevent hot spots. As it comes loose I insert more picks to help hold it open and so it will not restock as it cools back down.