If you cannot root your device but still need to create a bootable environment, these apps are your best bet: ISO 2 USB [NO ROOT] DriveDroid , which "emulates" a drive, this app allows you to
and enter the Boot Menu to select your phone as the drive. If you'd like to try an alternative, let me know: Do you have a USB flash drive and an OTG adapter ? Are you trying to install Windows or run Linux ?
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