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

Software Update

5 Read the on-screen instructions and click Continue . 6 Read the precautions about the update and click OK . 7 Read and agree to the terms and conditions. The update will start. Recovering from a Software Update Failure

If a software update is interrupted because of an error on your device or computer, your device may fail to operate normally. If this occurs, you can perform a factory data reset on your device for emergency recovery. Before performing the factory data reset, remember to make backup copies of all important data stored in the device. Samsung is not responsible for the loss of data stored in the device. 1 Disconnect your device from the computer and launch Smart Switch again on the computer. 2 Click → Emergency Software Recovery and Reset . The device list will appear. 3 Click the device that experienced a software update error and click Device reset → OK . The device will perform a factory data reset. Recovering on Another Computer If the emergency recovery process continues to fail on the computer where the software update failed, you can repair your device on another computer using the recovery code. This will include a factory data reset of your device. • Before performing the factory data reset, remember to make backup copies of all important data stored in the device. Samsung is not responsible for the loss of data stored in the device. • The recovery code can be found only on the computer where the software update has failed. 1 On the computer where the software update has failed, launch Smart Switch . 2 Click → Emergency Software Recovery and Reset .

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