Following up on his recent work, today Spanish PlayStation 3 developer MiralaTijera has released PS3 CFW 4.30 DEX for both PS3 Debug OFW and CEX2DEX converted consoles.
Download: PS3 CFW 4.30 DEX by MiralaTijera (dex430cfw.rar) / PS3 CFW 4.30 DEX (Patched) by MiralaTijera (mod431.rar) / DeltaPatcher v1.0 Win32 Binary / PS3UPDAT.PUP.430.001-DEX-MiralaTijera.rar (Patched Full PUP) / DEX_CFW_4.30_PS3UPDAT.zip (178 MB - Mirror)
To quote (via pastie.org/private/emwfwuoizwvq8tlirp6a): PROCEDURE CFW CREATION IS MIRALATIJERA same as CEX, we use DELTA PATCHER and the original file chose the PS3UPDAT.430.001 ORIGINAL AND THE PATCH THE FILE ATTACHED
you create an installable ANY cfw 4.30 dex without bricking.- deleted lv1ldr protection against consoles converted "unofficially"
- lv2 peek / poke
- lv1 peek / poke
- Integrated and Iris Payload Manager 2.21
- spu_iso_rvk_pkg reinstall cfw patched for successful
- spu_token_processor (qa flag activated if you had installed since 3.55) - <morning launched an app to activate these little things directly in 4.30 dex
I add more things tomorrow, for now is basic but is a cfw 
Mini Tuorial:
1. Download the DeltaPatcher from here: https://mega.co.nz/#!ZMB2yYiD!USlZBg...-8rB3HTc4lAoss
2. Dowload the OFW from here: http://www.ps3news.com/ps3-hacks-jai...now-available/
3. Open the Deltapatch.exe
A. On original file: chose the PS3UPDAT.430.001
B. On xDelta patch: dex430cfw.xdelta
C. Check on both option: Keep original and checksum
4. Now press apply patch and now the new CFW will be create with not brick. Enjoy!!!
Code:
OFW DEX 430:
File: PS3UPDAT.PUP.430.001.forDEX.release.20121017
CRC-32: bdcad908
MD4: 08317cdd509899e84ce1203ada4882ce
MD5: 2b8f823526634f1d04a7f61261eee850
SHA-1: dd96d7d4da85f0aab41f7b82d348572b889a39c1
CFW DEX 430:
File: PS3UPDAT.PUP.430.001.forDEX.releaseNEW.20121017
CRC-32: 591338b9
MD4: cef6f67e84a14f12e9e0c1cdd3121238
MD5: f59a4247449be038fea354f3462c3af6
SHA-1: f0fdc72c52ea4320081d5db10adc41c7f463e9c5
Below are the verification checksums, as follows:- 4.31 CEX patched update4 PUP: a1781d38dc5f3d54830615ed6b6c3870
- 4.30 DEX patched PUP: f59a4247449be038fea354f3462c3af6
Finally, from Cyberskunk: First, nice job Miralatijera. Second, It is true 4.30 REX has been ready for a few weeks now and it does use a patched 430 lv1ldr instead of the 421 lv1ldr that does not have the check. I read a single sentence on ps3 dev wiki that stated there was a check in lv1ldr with no other details about it.. so i had a look.. found it.. patched it.. Job done. So guess i would have to give credit to the person that shared that snippet of info to work from.. Thanks 

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