> In Linux prepend sudo to any adb or fastboot command For e.g. “sudo fastboot reboot” and
in Windows start the command window as administrator.
{% include alerts/danger.html content="Before following these instructions please ensure that the device is on the latest Android firmware available for your device. For example **if available**, before flashing /e/R install Stock Android 11, before /e/Q it should be Stock Android 10 or before /e/OS Pie it should be Stock Android 9." %}
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{% include alerts/danger.html content="Before following these instructions please ensure that your smartphone is on the latest Android firmware available for your device. For example **if available**, before flashing /e/OS 'S' install Stock Android 12. Similary before installing /e/OS 'R' it should be Stock Android 11 or before installing /e/OS 'Q' it should be Stock Android 10. Check you device vendor's website to download the required Stock ROM." %}
