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Make sure the phone speakers have not been muted, turn up the volume.Remove and reinsert the earphone, checking whether the connection is good and tight.Confirm your earphone works by connecting it to another device to test it.However we do not suggest flashing the ROM yourself, a better way is to contact the aftersales service for support as flashing a ROM can invalidate the phone's warranty and may also cause more problems. If this doesn't work, you can try to flash the phone's firmware: enter the Ulefone official website and follow the flash guide there.Or long press and hold the Volume- and Power button to enter the phone's Factory mode, and use the Volume- button to choose the Reboot option and press the Power button to confirm this decision.Then uninstall recently installed applications until your phone can reboot as normal. Press Volume+ button to select the Normal Boot option and press Volume- button to confirm and boot the phone. If you can, long press the phone's Volume + button and Power button together to enter the phone's Safe mode. Reinsert the battery and try to power on the device. Remove the SD card, SIM card and battery from the phone, and carefully wipe the connector pins clean.Charge the phone for at least 10 minutes with the original USB charger, then try powering it on.Long press the power button for 8-10 seconds to check whether the phone can be powered on.Looking deeper, a system error or hardware fault may be responsible.
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![sims 4 ultimate fix freezes on main screen sims 4 ultimate fix freezes on main screen](https://brandonsellsboulder.net/images/601147.png)
This could be a simple problem but may also point to a more serious, underlying problem.