MikroTik CRS226-24G-2S+RM - Troubleshooting: Routerboard Boot Failures; Netinstall Detection Issues

Routerboard does not boot
52
1. If Netinstall can see the board, but can not install it
B try change RAM Flash U200, if did not help, go to next bullet
B try change NAND Flash U401, if did not help, go to next bullet
14 Routerboard does not boot
C'C&F)FC.>,,F9$H&.>,(>)6:NC ;1)HA$.) ;*  6
C'C&F)FC.>,,F9$H&.>,(>)6:5 ;1)HA$.)-5/ ;*  6
C'C&F)FC.>,,F9$H&.>,(>)6 :):IFH.&6
&D&:*63@%@HD6@C@C&:@OP
C'C&F)FC.>,,F9$H&.>,(1,6:NC A:)S+.$6*:,, '#' # *#H3
C'C&F)FC.>,,F9$H&.>,(1)6:5 A:)S+.$6*,,, '#' # *#H3
C'C&F)FC.>,,F9$H&.>,(>)6 )16)R:+) : !56"%
C'C&F)FC.>,,F9$H&.>,(1)6 :):IF*H.&6
&D&:*63@%@HD6@C@C&:@OP
C'C&F)FC.>,,F9$H&.>,(1,6:NC A:)SS.$6*:,, '#' # *#H3
C'C&F)FC.>,,F9$H&.>,(1,6:5 A:)SS.$6*,,, '#' # *#H3
&!H9>:'@.>!,> ,(,6-%/@ 3DI,>H&.:6$ 359' # H$3
&!H9>:'@.>!,> .,(>)6@ &,H;$6* #59'&.H$ !
&!H9>:'@.>!,> .,()6$.:5
A1H,>I,.'6$,,,, '#' # *#H3
&!H9>:'@.>!,> .,(>)6.*66:5
'F%,H,,:1,, ' 
&!H9>:'@.>!,> ,(,6C3'3>
:6)>$H,'3:&,,$S :!
&!H9>:'@.>!,> .,(>)6@ ;1,H'&& ;*  6