1.You download the 3.55.4 rebug downgrader:
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2.Then install this on your PS3(MAKE SURE NOT TO HAVE A DISC IN THE PS3 AND DISABLE THE SPOOFER AND NOT TO HAVE ANY COLDBOOTS ON)
3.From there you just want to go ahead and convert from DEX to CEX.
4.Make sure that you kept your CEX-FLASH.EID0.NORBIN OR NANDBIN.
5.These are the files that you got from when you converted from CEX to DEX
6.If you didn't keep those files you can find a tut on youtube/google
7.Once your converted you can go ahead and install habid.