I got bad news and really bad news.
Bad News: "no valid BOOT image found".
Really Bad News: "PASSWORD RECOVERY FUNCTIONALITY IS DISABLED".
Give us more info about this router.
Is the router booting into ROMMON or not?
If the router is booting into ROMMON, what is the output to the command "dir flash:"?
Lastly, who is/was the "genius" who disabled password recovery?
No router is not booting into ROMMON.
The router will not boot into ROMMON because someone disabled Password Recovery -- This is why the router is in a boot loop.
Your only hope is to RMA the router.