I'm not sure if this will work so it might be a case of some more opinions before you try it and will only work if you have an external back up of the system already.
Do a cold restart of the system to reset it back to factory default.
log on using the default 33333 password
Reload from your external back up.
i think this would leave you logged onto the system with the existing passwords back in place. you can then change the passwords. it's messy but other than that i can't think of anything
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umm,it IS supposed to do that, right??