N1刷机/救砖用U盘注意事项

务必一定要用只支持USB2.0的U盘，否则就无法识别，一般只有1G/2G这些才会只支持USB2.0

(Re)start USB...
USB0:   USB3.0 XHCI init start
Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... usb_new_device: Cannot read configuration, skipping device 058f:6387
1 USB Device(s) foundscanning usb for storage devices... 0 Storage Device(s) found

USB2.0的U盘能正确识别

(Re)start USB...
USB0:   USB3.0 XHCI init start
Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) foundscanning usb for storage devices... init_part() 278: PART_TYPE_DOS
1 Storage Device(s) found

有些bootloader或者U盘的问题导致无法U盘启动，ttl执行下面两条命令即可U盘启动

usb start 0
run recovery_from_udisk