My iphone 5 is water damage and it won't turn on. How do I delete everything off of it?

My iphone 5 is water damage and it won't turn on. How do I delete everything off of it?

Added (1). Without plugging it in, because obviously it won't turn on

Take the battery and SIM card out of the phone. Set all those parts in a bowl of UNCOOKED rice and set the bowl in the sun for two days. Then wipe the parts down (dust from the rice grains), reassemble and hopefully turn it on.

Next time a phone gets water damage, DO NOT try to turn it on. Disassemble it immediately and follow that procedure.

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