Here is a Custom Firmware Enabler for ChickHEN R2 Davee, the following information about this version 1.0.
A Custom Firmware Enabler, but what?
It is a program that activates the functions of M33 Custom Firmware on ChickHEN.

What did you need to Use?
A PSP Slim (regardless of your type of motherboard, so TA088v3 can enjoy!).
An official firmware version 5.03. (available here)
ChickHEN R2 (available here)

Compatibilities:
All the features of 5.00 M33 are present except:
Recovery mode menu (a homebrew will surely be created to set the CFW).
Some plugins (those requiring 5.00M33-6, ...)
Popsloader and pops (plugin allowing to run PSX games correctly).
Updated: posloader works perfectly with the CFE.
(see FAQ Custom Firmware Enabler: B and A BA CFE)
Can we start with in ISO?
Yes.
Reminder: It is forbidden to use an ISO without owning the original.
This works with any PSP?
Unfortunately, this does not work with the PSP 3000 for now, but otherwise it works with any PSP Slim, including those with the motherboard cursed.
The program refuses to install on the PSP-3000
My console risk she be damaged?
The risk exists because the flash 0 is changed, but it is very minimal, given that the program will add only a few files, but does not delete or overwrite any of origin. If you run this utility, you do so at your own risk.
Is this permanent?
No, every time you completely turn off the console, you'll have to repeat the process of launching (HEN activator + FC).
How can we ensure that this is permanent?
For the moment, because it takes such a transaction requires IPL compatible, which means it should have the information and it PreIPL yet IMPOSSIBLE
Do never install a custom firmware on full PSP3000 and PSP2000 with TA088v3 yet because even if the facility can walk, the launch would lead inevitably to a brig.
Will it have a future version of CFW Enabler that will solve these problems?
Wait and see ..
WARNINGS
This program does not work on PSP-3000
This program does not launch the games PS1
KEY TO THIS PROGRAM TO FLASH YOUR PSP
ON PSP-2000 v3: no backup solution in case of brick
ON PSP-2000 v3: Do not attempt to install a Custom Firmware complete even if the installation works, the outcome will be fatal to reboot.
This program allows for the launch of ISO's PSP-2000 v3
Download and use ISO without having the original is prohibited.
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