Hellcats have released a newer version of their flasher. here is the readme(also found in files):

H E L L C A T s R e c o v e r y F l a s h e r
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* recover semi-bricks * up-/downgrade your CFW *
* flash *ANY* CFW directely to almost any other *
* backup/restore firmware flash (not NAND dump) *
* make and restore NAND dumps *
>> all without Pandora <<
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What is this? And why?
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Short version:
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- Flashes a fresh M33 CFW (everyone from 3.71 up)
for recovering semi-bricks or to up-/downgrade CFW
- does not use Pandora, runns from the recovery menu or the XMB
- does not use (as in launch) the original Sony Updater (only extracts
all required files from the original .PBP)
- runns fine on CFWs lower than 3.52-M33-3 - handy for upgrading older
FWs w/o the "need to go 3.52, then 3.52-3, then higher" odyssey :-)
- runns fine from TimeMachine (3.40-OE on Fat and 3.60-M33 on Slim)
- can backup the FW flash and restore selected parts (XMB theme,
settings, PSN activation, complete firmware)
- can make and restore full NAND dumps

Pandora Support
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Since version 1.20 the recovery flasher also comes with an .ELF binary
that can be used from a DDC Pandora stick, so you can use the CFW
flashing functions of it from a Pandora boot.
Since version 1.50 it also comes with a resurrection.prx replacement
for use on DDCv7.
For details on how to install and use it, see the readme in the
Pandora folder of this archive.