It has come to our attention that iOS devices, and many Android devices running Android 7.0 or higher may be utilizing power saving features that limit the ability of Harry Potter: Hogwarts Mystery to save properly. You can improve saving performance by adjusting these settings. iOS devices may also see improvement by turning off battery optimization. We’ve provided some common settings methods for Android devices below:

Samsung Android 7.0
Settings-->Device maintenance-->Battery-->Unmonitored Apps-->Add apps-->Select HPHM
 
Samsung Android 6.0
Settings-->Battery-->Battery Optimization-->All apps-->Select HPHM —>Turn off optimization
 
LG Android 7.0
Settings-->Battery & Power saving-->Battery usage-->Battery optimization-->Ignore optimizations-->Select HPHM
 
HTC Android 7.0
Settings-->Power-->Battery optimization-->All apps-->Select HPHM—>Don't optimize
 
One Plus Android 8.0
Settings-->Battery-->Battery Optimization-->All apps-->Select HPHM—>Don't optimize
 
Moto Android 7.0
Settings -->Battery-->Battery Optimization-->All apps-->Select HPHM—>Don't optimize
 
Google Pixel Android 8.0
Settings -->Battery-->Battery Optimization-->All apps-->Select HPHM—>Don't optimize
 
Huawei Android 7.0
Settings-->Battery-->Power Saving From Apps-->Close apps on screen lock-->Select HPHM—> Disable
 
Huawei Android 5.1
Settings-->Protected Apps-->Select HPHM—>Enable

ASUS Android 8.0
Settings -->Battery-->Battery Optimization-->All apps-->Select HPHM—>Don't optimize
 
ZTE Android 6.0
Settings-->Power manager-->Manage background-->Select HPHM—>Enable
Settings-->Power manager-->Auto-start manager-->Select HPHM—>Enable