HowTo reset admin password in mallanox sx6036

Hi,all:

I hava bought 2 switches of sx6036.But I don’t hava any passwords.Default 123456 for admin does not work.Also I don’t know the password of u-boot…I hava touched the RST button 20sand does not work…please help,thank you for your reply!

admin for admin is right。

admin is the default password for the admin user

admin for admin is right。