Sometimes users report this problem on a device that is fully charged. In this case, the battery itself could be faulty. To check, simply change the battery. You can buy a new one or borrow from a friend. The power switch could also have a problem. So have it checked by a professional to rule it out. Read More: Locked out of your Samsung Galaxy S3?
HALLEAST Gear S3 Charger Holder, Charging Stand Dock Cradle Case Accessaries, Portable Travel Carrying EVA Protective Docking Station for Gear S3 Frontier Classic Watch, Black $11.96 $ 11 . 96 Get it as soon as Thursday, Dec 14
NOTE: 1.The standard current of Samsung Gear S3 is 380MA, it cannot be charged with a high-power charging head, especially a fast charging head for mobile phones, so we recommend using a 5V 500-1000MA charging head. 2.Please donโt worry that the charger may get warm while charging, itโs a normal phenomenon.
Paid ยฃ359 after 5 months suddenly stopped charging to 100 % eventually would only charge to 97%. Sent off to Samsung 8 days later sent back now will not charge past 92% and says will take 1hr 45 mins to charge to full having been on charge for 6 hrs. They will not give me refund or replacement.
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There are other reports of the same issue on this forum. My Gear S3 Classic also has this problem. What works for me is to press and hold the power (home) button and then press the back button (essentially press both buttons at the same time, but press home button first). This works consistently for me, but others have reported that it
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gear s3 frontier charging issues