Resetting a Xiaomi Mi Note with fastboot in 2016

My friend came to me with his Xiaomi Mi Note that he was planning to sell, but was unable to reset through the menus. I managed to reset it with fastboot -w whilst holding I think ‘Volume down’ and the ‘Power button’ from a cold boot.

Using android-sdk-platform-tools /opt/android-sdk/platform-tools/fastboot on Archlinux. Here’s the log:

~$ fastboot -w
< waiting for any device >
Creating filesystem with parameters:
	Size: 60121133056
	Block size: 4096
	Blocks per group: 32768
	Inodes per group: 8192
	Inode size: 256
	Journal blocks: 32768
	Label:
	Blocks: 14678011
	Block groups: 448
	Reserved block group size: 1024
Created filesystem with 11/3670016 inodes and 276420/14678011 blocks
target reported max download size of 1610612736 bytes
Creating filesystem with parameters:
	Size: 402653184
	Block size: 4096
	Blocks per group: 32768
	Inodes per group: 8192
	Inode size: 256
	Journal blocks: 1536
	Label:
	Blocks: 98304
	Block groups: 3
	Reserved block group size: 23
Created filesystem with 11/24576 inodes and 3131/98304 blocks
erasing 'userdata'...
OKAY [ 24.552s]
sending 'userdata' (141083 KB)...
OKAY [  4.419s]
writing 'userdata'...
OKAY [  2.585s]
erasing 'cache'...
OKAY [  0.040s]
sending 'cache' (8336 KB)...
OKAY [  0.263s]
writing 'cache'...
OKAY [  0.139s]
finished. total time: 31.999s
~$ fastboot continue
resuming boot...
OKAY [  0.000s]
finished. total time: 0.000s
~$