@Kator Please confirm if your phone's firmware is used across different regions. If not, please refer to the following method to update the firmware. Tap "Check Update" in "Settings" -> "System update" to check if the firmware is the latest version. Note: During the update process, please charge your phone with the AC adaptor or make sure the phone has at least 15% battery power level. However, if you are unable to update, it is advisable to visit a repair center for further verification. The following is the contact information: https://www.asus.com/support/service-center-location Also you can contact the local service center for help. The following is the contact information: https://www.asus.com/support/CallUs# Sorry for any inconvenience it may be caused.
