升级前请查看设备序列号
Please check the device serial number before upgrading.

210925010001-210925010300：使用(use) smsl al400 hw_v1.00_sw_v2.0
210926020001-(>=)210926020300：使用(use) smsl al400 hw_v1.01_sw_v2.0

适配编码器方向问题
Problems related to the encoding direction adaptation