How does the ipad see what chip it's using?

You need to find the serial number in the Settings and query it on Apple's official website. The detailed steps are as follows:

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1. Copy the serial number

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Open ipad Settings, click General, and copy the serial number in About this machine.

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2. Query the serial number

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Enter the serial number in the technical support of Apple's official website to query.

Here's how the ipad can see what chip it's using,

View steps: Open iPad's Settings, select General, and click About. There is a serial number display, you can use this to check which chip iPad is