If you're trying to decide on a PS3 4.81 Custom Firmware, PlayStation 3 developer @BobbyDowngrades has added some more choices to the buffet with his PS3 CFW 4.81 Overflow Collection that comes in Standard CEX, DualBoot, NoBD (No Blu-ray Disc) and Cobra 7.3 flavors with details on them all below. 
Download: Overflow_4.81_v1_Standard_CEX.rar (195.75 MB) / Overflow_4.81_v2_Dual_Boot.rar (196.49 MB) / Overflow_4.81_v3_NoBd.rar (195.75 MB) / Overflow_4.81_v4_Cobra_CEX.rar (195.74 MB) / 481_cobra_cex_release_only.rar (16.96 MB)
PUP MD5's (using MD5 Check Utility v2.31):
Overflow 4.81 V1 Standard CEX edition
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release, but you can use multiman.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
Download: Overflow_4.81_v1_Standard_CEX.rar (195.75 MB) / Overflow_4.81_v2_Dual_Boot.rar (196.49 MB) / Overflow_4.81_v3_NoBd.rar (195.75 MB) / Overflow_4.81_v4_Cobra_CEX.rar (195.74 MB) / 481_cobra_cex_release_only.rar (16.96 MB)
PUP MD5's (using MD5 Check Utility v2.31):
- Overflow 4.81 v1 Standard CEX PUP: F22C53A929C7116BFFBCCC369364CBB7
- Overflow 4.81 v2 Dual Boot PUP: EA3C2FAE7B0B110BD85AB01458B15CEB
- Overflow 4.81 v3 NoBD PUP: F4318C56EEA8FE71E29F19951C38BC64
- Overflow 4.81 v4 Cobra CEX PUP: 518C70C05561B4E0B7EC9D938C1AEAF9
Overflow 4.81 V1 Standard CEX edition
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
- Built from 4.81 ofw
- NOT built with MFW-builder !!!
- LV0- All security checks disabled
- LV1- Disabled lv2 protection
- LV1- Disabled Hash Checks
- LV1- Added Peek & Poke
- Lv1- Added mmap-function 114
- Lv1- ACL checks removed
- LV2- Added syscalls
- LV2- Lv1 peek & poke support
- Games with 4.81 keys and lower will start
- RED SCREEN OF DEATH Bypass
- Not added app/home
- Added option to xmb Install Packages with 3 paths (USB or HDD or download to usb)
- Warning message disabled for faster boot time
- Update from any cex cfw up to 4.81 and 3.55 ofw
- Added warning messages with update from internet to stop losing jailbreak
- QA flagged
- Both dex and cex packages supported
- Full react psn compatability
- Visual updated
- Cinavia protection disabled both disc and hard drive
- Some trophy sync errors removed/bypassed
- Remote play supported
- in-game screenshots supported
- psp drm checks disabled
- Removed annoying singstar icon
- runs fselfs as native (runs dex/debug files like eboots)
- added option to download packages from whats new in psn column (update list is updated as and when new packages become available)
- CECH-A00
- CECH-A01
- CECH-C03
- CECH-G04
- CECH-L04
- CECH-2003a
- CECH-2503b
- Patched spu_pkg_rvk_verifier.self and isoldr
- Based on an idea from habib, thanks to him.
- This cfw lets you install and play games on psn from disc with no risk of getting banned, at any time you can install cfw 4.81 or a downgrader, to go back to real cfw.
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
- This cfw allows you to install onto a ps3 with no blu ray drive or an un married drive.
- Built from 4.81 ofw
- NOT built with MFW-builder !!!
- LV0- All security checks disabled
- LV1- Disabled lv2 protection
- LV1- Disabled Hash Checks
- LV1- Added Peek & Poke
- Lv1- Added mmap-function 114
- Lv1- ACL checks removed
- LV2- Added syscalls
- LV2- Lv1 peek & poke support
- Games with 4.81 keys and lower will start
- RED SCREEN OF DEATH Bypass
- Not added app/home
- Added option to xmb Install Packages with 3 paths (USB or HDD or download to usb)
- Warning message disabled for faster boot time
- Update from any cex cfw up to 4.81 and 3.55 ofw
- Added warning messages with update from internet to stop losing jailbreak
- QA flagged
- Both dex and cex packages supported
- Full react psn compatability
- Visual updated
- Cinavia protection disabled both disc and hard drive
- Some trophy sync errors removed/bypassed
- Remote play supported
- ingame screenshots supported
- psp drm checks disabled
- Removed annoying singstar icon
- runs fselfs as native (runs dex/debug files like eboots)
- added option to download packages from whats new in psn column (update list is updated as and when new packages become available)
- CECH-A00
- CECH-A01
- CECH-C03
- CECH-G04
- CECH-L04
- CECH-2003a
- CECH-2503b
NOTE: Packages such as ccapi and multiman have not been updated to work with 4.81 at the time of this release, but you can use multiman.
IMPORTANT NOTE: Ccapi (console manager) uninstalls when you install new cfw so make sure you have your cid saved if ccapi is set to change your cid at boot. If you already have Webman setting your cid keep a copy just incase.
Features
- Built from 4.81 ofw
- NOT built with MFW-builder !!!
- LV0- All security checks disabled
- LV1- Disabled lv2 protection
- LV1- Disabled Hash Checks
- LV1- Added Peek & Poke
- Lv1- Added mmap-function 114
- Lv1- ACL checks removed
- LV2- Added syscalls
- LV2- Lv1 peek & poke support
- Games with 4.81 keys and lower will start
- RED SCREEN OF DEATH Bypass
- Not added app/home
- Added option to xmb Install Packages with 3 paths (USB or HDD or download to usb)
- Warning message disabled for faster boot time
- Update from any cex cfw up to 4.81 and 3.55 ofw
- Added warning messages with update from internet to stop losing jailbreak
- QA flagged
- Both dex and cex packages supported
- Full react psn compatability
- Visual updated
- Cinavia protection disabled both disc and hard drive
- Some trophy sync errors removed/bypassed
- Remote play supported
- Has webman integrated (1.43)
- ingame screenshots supported
- psp drm checks disabled
- Removed annoying singstar icon
- runs fselfs as native (runs dex/debug files like eboots)
- added option to download packages from whats new in psn column (update list is updated as and when new packages become available)
- CECH-A00
- CECH-A01
- CECH-C03
- CECH-G04
- CECH-L04
- CECH-2003a
- CECH-2503b
