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How/where can I turn on fast charge ?

Star I
Please tell us some basic information before asking for help:
  1. Model Name: Zenfone 6 ZS630KL
  2. Firmware Version:
  3. Rooted or not:
  4. Frequency of Occurrence:
  5. APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.


Community Legend I
Quick charge 3.0 is already enabled on your phone! ZenFone 6 supports QC 3.0 at 15 watts, but we can only qualify that with the bundled ASUS AC adapter. Performance with other electrical sources may vary.

Star II
Try flipping the power adapter in the wall outlet by 180 degrees. Mine was charging slowly and after messing with all settings over an hour, I tried flipping the power adapter and lo! 'Fast charging' is back!