Symphony code

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QC test

 *#*#64663#*#*

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Testing

 *#*#4636#*#*

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Calendar

*#*#225#*#*

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Google Play services

*#*#426#*#*

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Rlz Debug Ul.

 *#*#759#*#*

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Imei Information

 *#06#

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In QC test you can perform one of tests for example bluetooth, camera, sensors itp. .

 "*#*#64663#*#*"

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XIAOMI Mi 8 , battery running time or WiFi information.

 *#*#4636#*#*

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