Hisense F24 - Power and Performance Issues

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phoneisnotinvibrationorsilentmode.
Phone hangs up or freezes
Updateyoursoftwarethroughthewebsite.
Contacts display doubly
Contactsaresavedinboth phoneandSIMcard.Check con-
tactssaved.
App cannot be installed
• Notsupportedbyserviceproviderorregistrationrequired.
Contactyourserviceprovider.
• Yourphonehasinsufcientstorage.Deletesomemessages
fromyourphone.
Phone cannot be connected to computer
• Changedatacable.
• Changecomputerport.
Call logs are not saved
Ensurethatthetimeisnotwronglyset.Checkthetimesetting.