This was separated from another thread, where a user couldn't get into the constantly booting machine, if memory serves...
FTP into your STB, as it is trying to reboot, if you can and remove the offending files and/or folders if poss... (Next time use OSCam Emu...)
Either way, I would advise you to flash a new image from scratch.
0) With DB it all depends on whether or not it's original or a clone. If you are not sure, a clone image is safer.
1) For old limited STBs I recommend OpenPLi. Then, install Open Multi Boot plugin (OMB).
2) Now, install more capable images, like PurE2, OpenATV, OpenSPA etc. onto USB stick, using OMB....
Good luck!