Liquid Damage Indicator (LDI)
To find buttons and what they do, refer to the following:
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To understand what icons and indicators on the display screen mean, refer to the following:
To find the IMEI / serial number of your device, follow these steps:
T-Mobile devices have an indicator that shows if it has been subjected to liquid damage.
The liquid damage indicator on the iPhone is not visible without the use of a special tool
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