No command and then #manual mode#

[Annie Swart]

i try to reset my j2 Samsung but then it said no command i then press power+ volume up it gave me #manual mode# with other stuff below it what can i do to fix it. And my phone goes off and on

 

[belodion]

[Also asked here: https://forums.androidcentral.com/showthread.php?t=595427]