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Active Level 1
Why on flight mode s9 plus battery drain s like a hell from 15% to 6%.. it drained... bt this doesnt happened for last 1 yr bt for the past 2 days its happening... 
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Expert Level 5
it's because of last security patch update problem ,don't worry this time Samsung look after that..in next update just install security patch by switching on download booster option and try to install it fast
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Active Level 1
ok bro
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Expert Level 5
don't worry, I am saying it because..most of device getting same problem as you are facing..it's happened for skip file pass issue....thatswhy I allaways try to download it through Samsung service center or by switching on both wifi and mobile network by means of switching download booster 👍
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Active Level 1
my s9 plus on 15% battery
to 1% in just a minute and switch off... what can I do..
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Active Level 6
battery need to replace
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