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Hello World! I've been reporting on Sony PlayStation hacking news since 2000 and started PSXHAX in 2014 to cover PlayStation (PSX), PlayStation 2 (PS2), PlayStation 3 (PS3), PlayStation 4 (PS4), PlayStation Portable (PSP), PlayStation Vita (PS Vita), PlayStation TV (PS TV) and next-gen PlayStation 5 (PS5) platforms along with anything else of interest.
Click on my UserName author link above and you'll be able to view a curated list of all the articles I've contributed thus far to PSXHAX.COM!
Click on my UserName author link above and you'll be able to view a curated list of all the articles I've contributed thus far to PSXHAX.COM!
MultiMAN PS4 in Development by DeanK, Open Source Code on Github?
Many may recall PS3 developer @deank of DeanBG.com's multiAVCHD homebrew application that, with help from Open Manager 1.0 source code, was modified and transformed into the popular PS3 backup game manager known as MultiMAN today. 
"In the spirit of open source (when using other peoples code)" as modrobert put it, in 2011 @deank released the long overdue MultiMAN Source Code (source-archive.zip - 79.94 MB) with some unofficial repositories available on Github from other PS3 scene developers including Twinaphex.
Since then Joonie86 of Team Rebug also made available Cobra code updates for 4.81 and 4.82, although current MultiMAN PS3 source code remains elusive... so if anyone runs across a repository for it feel free to share!
That said, with the official announcement that MultiMAN PS4 is now in development comes the big question many PlayStation 4 developers and homebrew enthusiasts are left wondering... will PS4 MultiMAN be open source and freely shared with the scene on a public repository such as Github?
Here's what @deank had to say thus far via STLcardsWS:
"After reading here and there I figured that Gold and Silver editions should come with 4.55 firmware. Luckily there is a pc store in my building and yesterday I got myself a Silver Edition...
"In the spirit of open source (when using other peoples code)" as modrobert put it, in 2011 @deank released the long overdue MultiMAN Source Code (source-archive.zip - 79.94 MB) with some unofficial repositories available on Github from other PS3 scene developers including Twinaphex.
Since then Joonie86 of Team Rebug also made available Cobra code updates for 4.81 and 4.82, although current MultiMAN PS3 source code remains elusive... so if anyone runs across a repository for it feel free to share!
That said, with the official announcement that MultiMAN PS4 is now in development comes the big question many PlayStation 4 developers and homebrew enthusiasts are left wondering... will PS4 MultiMAN be open source and freely shared with the scene on a public repository such as Github?
Here's what @deank had to say thus far via STLcardsWS:"After reading here and there I figured that Gold and Silver editions should come with 4.55 firmware. Luckily there is a pc store in my building and yesterday I got myself a Silver Edition...
PS4 Cheat List: Listing of PS4 Cheat Codes / Offsets on Github
Following JKPatch / MemView, the NetCheat API and PS4 Cheater homebrew application we've seen a resulting PS4 Game-Modding Offsets Drop thread... but today JDsnyke kicked things up a notch initiating a free PS4 Cheat List on Github for PlayStation 4 game modders to share their findings with the community! 
Download: PS4-Cheat-List-master.zip / GIT / PSXCheatList.tk
Hopefully others will join in and fork it pushing current changes, and to quote from the README.md in part: PS4 Cheat Code / Offset List
List of PS4 cheat codes / offsets found for either PS4Cheater or NetCheatPS4
Disclaimer
All codes belong to their respective owners. I am merely gathering them here for ease of use.
I do not and cannot guarantee the accuracy nor the reliability of either these programs / software nor of these codes / offsets.
I nor the original publishers of these codes are to be blamed for any issues that arise with their use.
In other words, USE AT YOUR OWN RISK!
Information
Original threads found here, here and here on the psxhax forum...
Download: PS4-Cheat-List-master.zip / GIT / PSXCheatList.tk
Hopefully others will join in and fork it pushing current changes, and to quote from the README.md in part: PS4 Cheat Code / Offset List
List of PS4 cheat codes / offsets found for either PS4Cheater or NetCheatPS4
Disclaimer
All codes belong to their respective owners. I am merely gathering them here for ease of use.
I do not and cannot guarantee the accuracy nor the reliability of either these programs / software nor of these codes / offsets.
I nor the original publishers of these codes are to be blamed for any issues that arise with their use.
In other words, USE AT YOUR OWN RISK!
Information
Original threads found here, here and here on the psxhax forum...
PS4 System Software / Firmware 5.50 (KEIJI) Live, Don't Update!
Since their previous update we've seen KEIJI PS4 System Software / Firmware 5.50 features including PS4 Pro SuperSampling and more recently the full PS4 5.50 OFW feature list which can also be found below. 
As always, don't update your PlayStation 4 Firmware if you plan to exploit and jailbreak your PS4 console and to recap here's the PS4 Update Blocker, a Manual Blocking Guide / Video and how to Remove Downloaded PUPs if they haven't been installed yet.
Download: PS4 Firmware 5.50 Update (US) / PS4 Firmware 5.50 Update (EU) / PS4 Firmware 5.50 Update (UK) / PS4 Firmware 5.50 Update (AU/NZ) / PS4 Firmware 5.50 Update (JP)
To quote from Sony's Official Page on the 5.50 OFW changes: Main features in version 5.50 update
As always, don't update your PlayStation 4 Firmware if you plan to exploit and jailbreak your PS4 console and to recap here's the PS4 Update Blocker, a Manual Blocking Guide / Video and how to Remove Downloaded PUPs if they haven't been installed yet.Download: PS4 Firmware 5.50 Update (US) / PS4 Firmware 5.50 Update (EU) / PS4 Firmware 5.50 Update (UK) / PS4 Firmware 5.50 Update (AU/NZ) / PS4 Firmware 5.50 Update (JP)
To quote from Sony's Official Page on the 5.50 OFW changes: Main features in version 5.50 update
- As a family manager, parent, or guardian, you can now monitor your child's time played (the amount of time they've spent logged in to the PS4) and set restrictions accordingly.To manage play time settings for each child, select(Settings) > [Parental...
PS4API Server Payload Port for PS4 4.55 Firmware by BISOON
Following the initial release, his NetCheat API and the recent PS4 Debugger and PS4Notify projects that make use of the PS4API today PlayStation 4 developer @BISOON made available a PS4API Server Payload Port for 4.55 Firmware. 
Download: ps4-api-server_4.55.bin (1.0 MB) / GIT
This comes proceeding both the 4.55 PS4 Holy Grail and 4.55 PS4HEN updates for exploited console owners.
From the README.md here are the usage commands and more, as follows: PS4API Server
This project allows you to control PS4 game memory for reading/writing calls. with this project you can make RTE/RTM tools
Installation
use CTurt's PS4 *** from xvortex's repository. then follow the instructions on how to add the *** path to your environment.
Usage
commands:
args:
Contributing
Download: ps4-api-server_4.55.bin (1.0 MB) / GIT
This comes proceeding both the 4.55 PS4 Holy Grail and 4.55 PS4HEN updates for exploited console owners.
From the README.md here are the usage commands and more, as follows: PS4API Server
This project allows you to control PS4 game memory for reading/writing calls. with this project you can make RTE/RTM tools
Installation
use CTurt's PS4 *** from xvortex's repository. then follow the instructions on how to add the *** path to your environment.
Usage
Code:
char sendCommand(char command, void* args);
Code:
* 'a' attach to game process ( eboot.bin ) and the process will continued.
* 'c' continue the process.
* 'd' detach the process.
* 's' suspend the process.
* 'u' resume the process.
* 'k' kill the process (seems not works)
* 'n' send notification with text.
* 'r' read memory.
* 'w' write memory.
Code:
* 'a'(void);
* 'c'(void);
* 'd'(void);
* 's'(void);
* 'u'(void);
* 'k'(void);
* 'n'(char text[]);
* 'r'(unsigned int length, unsigned long int address);
* 'w'(unsigned int length, unsigned long int address, char data[]);- Fork it!
- Create your feature branch: git checkout -b my-new-feature
- Commit your changes: git commit -am 'Add some...
PS5 May Play PS4 Games According to Sony Patent Updates
Recently industry insider Tidux shared a link to an updated Sony patent (with another HERE), which means according to reports the PS5 may offer backwards compatibility and play PS4 games on the upcoming PlayStation 5. 
To quote from PSU.com on this interesting discovery:
"PS5 backwards compatibility is looking a little more likely after a US patent was updated by Sony Interactive Entertainment America. Updated on February 13, it clearly states: “Backward compatibility testing of software in a mode that disrupts timing.”
This isn’t confirmation that the PS5 will be able to play PS4 games, but it could be an indication that Sony is conducting some kind of backwards compatibility testing."
To quote from PSU.com on this interesting discovery:
"PS5 backwards compatibility is looking a little more likely after a US patent was updated by Sony Interactive Entertainment America. Updated on February 13, it clearly states: “Backward compatibility testing of software in a mode that disrupts timing.”
This isn’t confirmation that the PS5 will be able to play PS4 games, but it could be an indication that Sony is conducting some kind of backwards compatibility testing."