F(x)tec Pro1 X
解決"Flashing of userdata is not allowed in snapshotted state"問題
參考資料：
1. flashing-xperia-10iii-fails-what-to-do
問題：
I: Flashing data/userdata.img
Sending sparse 'userdata' 1/5 (765895 KB) OKAY [ 20.291s]
Writing 'userdata' FAILED (remote: 'Flashing of userdata is not allowed in snapshotted state')
fastboot: error: Command failed
解法：
$ fastboot snapshot-update cancel