Repair guide Galaxy S21 (SM-G991B) - English - Rev.1.0

Quality Test

USB connection • Purpose: Check whether the multipurpose jack recognizes the USB cable normally. • How to check: Connect any USB cable to your device. • Provided information ‒ Status: View whether the feature is working normally. ‒ FAQ: View frequently asked questions. To test this feature, the USB cable must be connected to a computer. Cable charging • Purpose: Check whether the multipurpose jack recognizes the charger normally. • How to check: Connect a charger to your device. • Provided information ‒ Status: View whether the feature is working normally. ‒ Charging speed: View the charging speed

according to the charger you connected. Use only Samsung-approved chargers.

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