Viprion password reset not working

Ran into an issue over the weekend trying to add tacacs to a device. Firstly, the key had a "" in it, of which I later found out that I cannot use after reading a few articles. Naturally I thought it was going to default back to local UN/PW but I'm still unable to log in. I am trying to do a password reset but cannot get the device to comply. I followed (https://support.f5.com/kb/en-us/solutions/public/4000/100/sol4178.html) but still failing. I'm looking at this screen and attempted to type "single" at the end of the syntax, but the device doesn't permit and locks up.

setparams 'BIG-IP 11.5.3 Build 0.0.163 ' * * * * set root='(lvm/vg--db--sda-dat.boot)' * * linux /boot/1/vmlinuz ro root=UUID=13b6ddbd-61a0-4ea5-a056-0350\ * * 091348b9 console=ttyS0 panic=1 platform=A112 quiet single * * initrd /boot/1/initrd * * TIC_VS_PROJECT: * * TIC_VS_PROJECT: * * TIC_VS_PROJECT: * * TIC_VS_PROJECT: * * TIC_VS_PROJECT: * * TIC_VS_PROJECT: * * TIC_VS_PRODUCT: BIG-IP **