Fuel Gauge Issue (*#0228#)

[Ice_Bear]

I dialled *#0288# and start a quick test now my battery percentage is distrusted not showing the actual battery percentage. If I do hard rest by powering off my cell phone. Will it work? Or do i need to flash my mobile? 

Help me guys...

[USMAN381]

Dear hard reset your device but note that you lost your all data
After hard reset the device is properly work.

[innovativeAR121]

Yes it will work