Following up on the previous Sony PS3 Debug / Test leak, today the PlayStation 3 DEX Firmware 4.30 PUP has surfaced with details below.
Download: Sony PS3 Debug / Test (DEX) Firmware 4.30 Update / Sony PS3 Debug / Test (DEX) Firmware 4.30 Update (Mirror) / Sony PS3 Debug / Test (DEX) Firmware 4.30 Update (Mirror #2) / Sony PS3 Debug / Test (DEX) Firmware 4.30 Update (Mirror #3) / dex 4.30 xmb_plugin.30.rar by DANNY G
Warning: According to PlayStation 3 developer soniciso as posted HERE, PS3 CEX to DEX converted units will brick when the OFW 4.30 DEX update is installed so be cautious! 
PUP Hashes
MD5: 2B8F823526634F1D04A7F61261EEE850
SHA1: DD96D7D4DA85F0AAB41F7B82D348572B889A39C1
CRC32: BDCAD908
CRC16: 04A1
HMAC_SHA1: 0xF1CA59DB50C7D9B86175B95EBBF1A39D0F1AB3AE
About 4.30 DEX
4.30 DEX: Do *NOT* install this on a converted machine, it will result in a brick. There is a check on eid0(!) in lv1ldr, that will trigger a panic (fun fact: it's impossible to generate the checked data yourself, so no cex2dex without ugly patches anymore).
PUP Information
Code:
PUP file information
Package version: 1
Image version: 99999
File count: 9
Header length: 656
Data length: 186813495
PUP file hash : F1CA59DB50C7D9B86175B95EBBF1A39D0F1AB3AE
File 0
Entry id: 0x100
Filename : version.txt
Data offset: 0x290
Data length: 5
File hash : 1E49F1F42C18AC829E29A1CABA8404073A8631FE
File 1
Entry id: 0x101
Filename : license.xml
Data offset: 0x295
Data length: 308970
File hash : 5003EBF1548E8F002545561B74BBF5C470EE92C7
File 2
Entry id: 0x103
Filename : update_flags.txt
Data offset: 0x4B97F
Data length: 5
File hash : 65A0A6DA7FDB7F7A93C50F2439F6D5FE4C55AF74
File 3
Entry id: 0x200
Filename : ps3swu.self
Data offset: 0x4B984
Data length: 5669536
File hash : 401FD78D850CF1EB797A5E4F96FB86BF429E5877
File 4
Entry id: 0x201
Filename : vsh.tar
Data offset: 0x5B3C24
Data length: 10240
File hash : D9B66E0D2845D71A67D76E7907AB06368CE61E08
File 5
Entry id: 0x202
Filename : dots.txt
Data offset: 0x5B6424
Data length: 3
File hash : 1AA4749D0EE0D0AE937FBF73BC4B9ACD352F732A
File 6
Entry id: 0x300
Filename : update_files.tar
Data offset: 0x5B6427
Data length: 175083520
File hash : 884BF69AC877FD054FD3DC92C88AF439FBA32FD6
File 7
Entry id: 0x501
Filename : spkg_hdr.tar
Data offset: 0xACAF427
Data length: 71680
File hash : AA3090A65BBAFFFB306B2FA8EE600C689B6F030F
File 8
Entry id: 0x601
Filename : ps3swu2.self
Data offset: 0xACC0C27
Data length: 5669536
File hash : 1677EC061EDA6AD3D50C12B47599220E931A8552
As always, keep in mind these PUP updates will currently NOT install on a retail PS3, and so they are intended for examination and comparison purposes only.
We have 100% confirmed that running this updater on a retail PS3 will not damage it, however, it will give the following error before the installation completes: The data type is not supported. (8002F029)

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