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Why does my phone stop during upgrade?

Troubleshooting

Why does my phone stop during upgrade?

 

symptom Symptom

 

              Upgrade stops midway.

 

cause Cause

 

              Connection between the PC and USB driver can be lost, causing the upgrade to stop.     

 

how to fix How to fix

 

              Please disconnect the PC and cell phone. Take out the battery and place back in.
              Try again in Recovery mode.

 

              connection

              When the symptom persists, please visit the service center for technical assistance.

 

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