QUOTE(attw @ Dec 11 2018, 09:18 AM)
No, technically they won't, although it's harder for them to check battery health if you're on an older OS.
I was on OLD OS when i send in mine to apple SG. They use their ipad to diagnose my phone . Their diagnostic will show the % and also the charge cycle. Not sure if the service center here has the same system.
Dec 11 2018, 04:43 PM

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