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Repair information and guides for the Apple iPhone 5s that was announced on September 10, 2013. Model: A1533, A1453, A1457, A1528, A1530, A1518

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Purpose of Logic Board Stickers

What is the purpose of the stickers on the logic board? They cover all the small components but not the connectors. Is it just for safety during assembly or do they have another purpose?

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To protect from moisture and short circuiting, always put back :)

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But never put back if they have moisture under them.

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If you are talking about the white ones, They are called LSI (liquid submersion indicators). If the are exposed to moisture they turn red. Apple will then use this to refuse warranty support.

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It is just for safety I believe.

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For avoiding shorts when plugging and unplugging cables or to protect from static electricity? Would it make a difference once the phone is assembled?

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