tv box i68 kodi lollipop 5.1 system damaged, wireless update disabled

HI, octacore tv box victsing with lollipop 5.1 since yesterday i receive the message your system is damaged, after reset factory from settings, i get the same message. Generally, how can i get details about my machine? should be a i68 octacore but, in settings device i get:
Model Number i68G
Android Version
5.1..1
Vendor software version
207L1
Kernel vresioin
3.10.0_204
jw@ubuntu #49
fri mar 11 2016
Build number
rk3368_box-user 5.1.1 LMY48Y ...20160312...

from Settings/Backup & Reset Factory data reset done
but still system damaged message.