All revisions with A0X-COLX chip are available for downgrade: (X any number) (FAT 10,11,12; SLIM 20,21,22*; PRO 70,71,72*) SLIM 22XX with SAF-003 and PRO 72XX board chip“SIE INC” WITHOUT A0X-COLX inscriptionscannot be downgraded. 所有syscon用A0X-COLX作为芯片的机型都可以还原到上个版本,包括普通版10,11,12; SLIM 20,21,22*; PRO 70,71,72。slim机型22xx不可以
How to find out your previous version of the software: In notifications, see the update history (if you did not clear the log) There are cases where the second firmware slot is already occupied by a pending firmware, in which case you won’t be able to downgrade 如何知道你的上一个版本固件是什么? 看更新日志,如果没有没删除掉的话 在某些情况下,如果你的硬盘上备份分区已经被预下载的固件覆盖了,那你也不能通过这个办法降级。