Meaning of Firmware version letters ?

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2019-09-22 07:05

Hello i have a question ,
What does the letter at the end of firmware version stands for ?
i know that the letter "G" stands for global (eg. Flyme 5.2.11.1G )
but what about the letter "A" & "Y" ? (eg.Flyme 5.2.11.0A or Flyme 5.2.10.0Y)
and can i use anyone for my device ? and if not how can i know which one should be flashed to my device ?


Thanks in advance