This means if you have a converted unit and currently try to use the (not yet public / leaked) 4.30 DECH update you will get a brick... so consider yourself warned in advance!
What happens is when the bricked unit is powered on the light turns green for a few seconds, then you hear 3 beeps and its goes off.
It is suspected (unconfirmed) the reason why this bricking occurs in CEX to DEX converts on OFW 4.30 DEX is because the EID5 isn't changed, which is one factor separating the converted Retail to Debug / Test consoles from genuine and righteous DECH (DEX) consoles.
Finally, for those curious, the PS3 4.25 DEX update (also not publicly leaked yet) is not patched by Sony to brick converted consoles, so this would be the last PS3 Debug / Test Firmware you could update your converted console...
61w ago - Recently yayes of PS3ISO (linked above) shared a PS3 CEX to DEX to CEX tutorial and file pack for those interested in converting their PlayStation 3 CEX (Retail) console into a Debug / Test (DEX) unit and then being able to revert it back.
Below are the details from the file pack for those interested, as follows:
WARNING!! Backup your CEX Flash Dump!! Don't Deleted it or You in DEX Forever. (Update: A Solution is now posted by haze67).
I'm not responsible for any problems/bricks the members suffer and that they'll do it on their own risk. Make Sure You don't Have Spoofer Installed.
61w ago - Following up on their previous update, this weekend German PlayStation 3 developer IcEmAn (aka IcEmAn2012) has made available PS3 XMB CFW Mod v2 and XMB CFW Mod v2 for CEX / DEX consoles with details below.
1. Install any CFW (3.55) you like
2. Install XMB_CFW_MOD_v2.pkg
3. Activate dev_blind
4. Copy the content of: hdd0/game/XMBCFWMOD/USRDIR/dev_flash to "FLASH"
5. Copy the content of: hdd0/game/XMBCFWMOD/USRDIR/dev_hdd0 to "internal hard drive" by using a file manager (multiMAN) or FTP
6. Disable dev_blind and start the console again
If an incorrect use of the flash memory, a brick-risk for the console! Under the category CB (PlayStation Category) can no longer be installed (CB is now 1p).
UPDATE_2.2_(IcE-rX_Media_Manager) can now be installed on all CFW's,...
73w ago - Following up on his initial release, today PlayStation 3 developer andbey0nd has updated his PS3 C2D.exe CEX to DEX Flash Patcher to version 2 which now includes Region / TargetID changing in the PS3 NOR Flash as outlined below.