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Dear bencebacsi,
My Super had became swallon after update 20170308 and now after 6 months, I just provide a fresh battery from china. So I want to put it into the phone but I'm so afraid about updating my phone. Please kindly help me and say what you think about the way for updating my phone to 20170637. Do I have to update through settings>about>wifi update or I have to by this thread and sptf+OTA?
If you advise the second way, please kindly give me a tutorial. I don't know anything about it.
Best
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