DECR-1400A advice

Kimiko

Forum Noob
Hi all, im thinking about purchasing myself a DECR-1400A as ive got an oppertunity to potentially buy one at a reasonably good price in my oppinion, to my understanding the system is running rebug 4.84.1 DECR already (which the seller has stated in the auction description) which is dope the issue is its only got a 50gb hdd, im familiar with upgrading retail hdds and the jailbreaking process but was just curious to anybody who might have upgraded one of these kits before if theres anything different i need to know about with the process as it is a dev kit compared to a retail console and i dont want to ruin it as i know how hard it would be to potentially get my hands on another one cheers in advance :)
 
Hi all, im thinking about purchasing myself a DECR-1400A as ive got an oppertunity to potentially buy one at a reasonably good price in my oppinion, to my understanding the system is running rebug 4.84.1 DECR already (which the seller has stated in the auction description) which is dope the issue is its only got a 50gb hdd, im familiar with upgrading retail hdds and the jailbreaking process but was just curious to anybody who might have upgraded one of these kits before if theres anything different i need to know about with the process as it is a dev kit compared to a retail console and i dont want to ruin it as i know how hard it would be to potentially get my hands on another one cheers in advance :)

I also want to clarify that the way i was thinking of going about this would be to get an update file for 4.84 for the retail console run that as an update on the new hdd then jailbreak back to 4.84.1 rebug decr if thats incorrect please correct me cheers :)
 
While i have no experience with DECR's, i do own a DECH system which is just a debugging station. But from what i've gathered from using it is that it QA flagged from factory meaning it doesn't need the patches that retails normally need in order to install CFW, i would assume DECR's are the same since they're devkits. But, I could simply downgrade to 3.55 and install cfw with ease straight from the XMB. Maybe @haxxxen knows some stuff as i believe he has learned some information about how DECR's work.

As for installing CFW on it, i would again assume that you would just need to downgrade/install 3.55 in order to install CFW since that's how it works for the majority of systems including DECH's since the signing keys for CFW were for that firmware version, so i would guess it applies to DECR's too.

But yeah these are just assumptions and a bit of knowledge i've learned from using a DECH system. I would suggest doing a bit of googling and asking around on here before jumping into doing anything.
 
You would not install retail ofw on this system. Only debug official firmwares. The firmware that is on it is the latest and greatest from Joon bug for decr systems. Just install Sen enabler and spoof to current ofw. I'm not exactly sure how to go about signing in on a debug unit though. You would have to ask someone that has owned one, or the devs themselves.
 
Really the only update you should need after you upgrade the hard drive would be 4.84 decr one that joon bug made. After that it's up to you and your preferences on what you want to do with the system.
 
Thanks for the information and replys guys much appreciated! So just to clarify i get joonbugs 4.84 cfw and use that as my update to configure my harddrive upon installation which will then allow me to go from the shitty 50gb hdd to something more appropriate without causing any dramas? Cheers :)
 
hi there

tbh, I cannot tell much about the 1400, since I hadn't it long enough running for deeper tests unfortunately, but one thing for sure I can tell or suggest, if using CFW, please use only official Rebug DECR Lite firmwares and do no experiments like me. and if you are clumsy just like me, I would avoid to try soldering and using a flasher by yourself (e3flasher with clip recommended)

besides, downgrading on dev units is nothing special and you can flash DECR OFW's (as long as you have access to them) as you wish, of course not going under 2.60 min firmware. but doing so, you have to keep in mind to go down to 3.55 DECR OFW, once you want to return to Rebug

another thing I would advice is, using targetmanager and built in update function to flash firmwares. I always have felt much safer using this function

edit
if you are in a position, where you want/have to open it up and remove the cooler, please be very careful and remove first both fans and use some hairdryer to warm up the heatplates. this will make it easier to remove the cooler
 
hi there

tbh, I cannot tell much about the 1400, since I hadn't it long enough running for deeper tests unfortunately, but one thing for sure I can tell or suggest, if using CFW, please use only official Rebug DECR Lite firmwares and do no experiments like me. and if you are clumsy just like me, I would avoid to try soldering and using a flasher by yourself (e3flasher with clip recommended)

besides, downgrading on dev units is nothing special and you can flash DECR OFW's (as long as you have access to them) as you wish, of course not going under 2.60 min firmware. but doing so, you have to keep in mind to go down to 3.55 DECR OFW, once you want to return to Rebug

another thing I would advice is, using targetmanager and built in update function to flash firmwares. I always have felt much safer using this function

edit
if you are in a position, where you want/have to open it up and remove the cooler, please be very careful and remove first both fans and use some hairdryer to warm up the heatplates. this will make it easier to remove the cooler

Very solid advice! Thankyou Haxxxen to my understanding dev wiki has ps3updat.pup files of decr ofw so before the hdd swap would you reccomend downgrading to decr 3.55 ofw from that source then do the swap and use 3.55 ofw to setup the new harddrive then update back to rebug? Cheers :)
 
lol, just have noticed I have written about 2 fans. this is nonesense of course and it is only a large single fan

Very solid advice! Thankyou
you are welcome :)

to my understanding dev wiki has ps3updat.pup files
I would try it with archive.midnightchannel.net - they have all original firmwares for dev units you can publicly get. hope this site does not go down, tbh and have to dl them all myself (would be nice to have all CP-updates for the 1000A as well)

so before the hdd swap would you reccomend downgrading to decr 3.55 ofw from that source then do the swap and use 3.55 ofw to setup the new harddrive then update back to rebug? Cheers :)
for this I won't make any recommendation and tbh, I never ever had a single problem using a different hdd on any CFW. ok, I am not very versed using a firmware >4.21, but this should not matter at all. if you want to be on safe side, of course doing the swap on 3.55 should be the best option

edit
best option for DECR OFW is of course getting SDK, just saying
 
hi there

tbh, I cannot tell much about the 1400, since I hadn't it long enough running for deeper tests unfortunately, but one thing for sure I can tell or suggest, if using CFW, please use only official Rebug DECR Lite firmwares and do no experiments like me. and if you are clumsy just like me, I would avoid to try soldering and using a flasher by yourself (e3flasher with clip recommended)

besides, downgrading on dev units is nothing special and you can flash DECR OFW's (as long as you have access to them) as you wish, of course not going under 2.60 min firmware. but doing so, you have to keep in mind to go down to 3.55 DECR OFW, once you want to return to Rebug

another thing I would advice is, using targetmanager and built in update function to flash firmwares. I always have felt much safer using this function

edit
if you are in a position, where you want/have to open it up and remove the cooler, please be very careful and remove first both fans and use some hairdryer to warm up the heatplates. this will make it easier to remove the cooler
Sorry to hijack here but I have a DECR-1400A that I've recently purchased, I want to update to cfw using a reliable source via a usb.
My question is my DECR-1400A is running 4.40 ofw and want to install cfw, is this system safe to install cfw without it being jailbroken first?
I don't want to brick my system so I'm asking before I do any damage, hopefully some of you amazing people can help me
 
CFW is a jailbreak...

You probably first must install OFW maximum version of 3.55 for DECR and after that any CFW in any version for DECR. You will not brick the console by trying to install wrong version because she will reject it, printing on screen error code. When You do this, remember to read EID Root Key and make NAND/NOR dump.
 
CFW is a jailbreak...

You probably first must install OFW maximum version of 3.55 for DECR and after that any CFW in any version for DECR. You will not brick the console by trying to install wrong version because she will reject it, printing on screen error code. When You do this, remember to read EID Root Key and make NAND/NOR dump.
Great thanks for you reply.
Sorry I'm a total noob with this and it scares me should something go wrong so please forgive my lack of intelligence.
As my DECR system is currently running on 4.40 official firmware right now you say it should be on 3.55 official firmware maximum before I do anything, so I ask you or anyone who can help is it safe to directly downgrade directly from 4.40 DECR to 3.55 DECR with no special tricks or processes inbetween?

Also sorry I'm not fully understanding this part too "remember to read EID Root Key and make NAND/NOR dump"
I have no toolbox or third party stuff etc on the system as its all fully standard.
I want to understand and Learn the correct way and thus site is definitely proving to be the best place for that, thanks all in advance
 
That's not the lack of intelligence but informations. There is no shame to ask questions and gathering informations. ;]

I never have DECR model but DEX (debug kits) and DECR (devkits) don't have restrictions in installing firmware versions (besides minimal version from which go out fabric). Normally on CEX (retail) and similar models, user cannot install old versions in normal boot mode. But later some wise heads discovered how to put QA flags and remove this limitations from CEXs. Since You are on DECR, You can install any DECR firmware in any version, which means that You have choice between all OFW for DECR or CFW Rebug DECR, just putting firmware on USB ("dev_usb000/PS3/PS3UPDAT.PUP") or internal HDD ("dev_hdd0/updater/00/*.pup"). There is no need any hacking for that. I have in the past my CEX converted to DEX with OFW DEX and I was able to freely install any DEX OFW or CFW version (CFW until 4.25 which brings additional checks leads to perm bricks), so I believe the same is on DECR.

If You try to install to low version, not model targeting version or CFW over fw past 3.55, You get error code, and PS3 will not install anything. So this also will not break the console. As probably this is what You afraid of.

You can dump those only on CFW. ERK gives You access to HDD on PC (from ERK encryption keys are calculated), and flash dump gives You backup solution if You somehow perm brick the console by breaking flash logic etc.
 
Thank you @Berion I'm slowly starting to understand more now and you have definitely put me more at ease.
Sorry to ask another question regarding cfw installs, I have seen various versions available that say exactly this.
Example........4.46.1 D-REX (same as rex edition but only installs on real DEX console)..... is this also ok for my DECR version or should I only use firmware that says (ONLY FOR DECR1000A / DECR1400A) as you have suggested above?
I see so many versions ie, DEX, CEX, REX D-REX, LITE I find it quite confusing please in a very simple format what are the difference between them and what can I use on my DECR ps3?

Again I'm so sorry for lack of understanding at this stage, I think it's safe to say I'm definitely not a developer yet I'm still collecting information for myself
 
You cannot use D-Rex (because it is for DEX), Rex (for CEX) or Lite (also CEX). It must be DECR (for DECR ;)). D-Rex and Rex are mix-up of DEX and CEX firmwares (users can switching between LV1 and LV2 from both worlds, depend of needs), Lite is only CEX (because we don't have newer DEX firmwares so creating Rex/D-Rex is impossible until then) and DECR is only DECR (and it is only one CFW made for DECRs).

Go to rebug.me site (via webarchive) to retrieve CFW links and read about all features. Especially read about Rebug DECR, I'm not sure if can be installed on all DECRs (should be in description what models was tested, on untested rather stay away of it because there is risk to kill the console beyond repair without flash dump).
 
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Brilliant thank you @Berion you have been most helpful.
Rebug site appears to have been shutdown?
Tonight I have successfully installed rebug 4.84.1 DECR lite but in order to get it working I had to install 3.55 ofw then update to 4.84.1 DECR cfw.

All I'm concerned about now is using rebug online.
In your opinion should I use sen if I decided to go online with it?
 
Brilliant thank you @Berion you have been most helpful.
Rebug site appears to have been shutdown?
Tonight I have successfully installed rebug 4.84.1 DECR lite but in order to get it working I had to install 3.55 ofw then update to 4.84.1 DECR cfw.

All I'm concerned about now is using rebug online.
In your opinion should I use sen if I decided to go online with it?

Jailbreaking on CECH (retail station) /DECH (debug station) & DECR (reference station) consoles is always the same process.
From OFW 3.55 up, CFWs cannot be installed directly without first applying a patch on the CoreOS files stored in Flash Memory.
The difference being that QA flag is enabled by default on a DECR console so you can downgrade the OFW firmware at will.
So you were able to install 3.55 OFW for DECR before installing a Rebug CFW 4.8x for DECR without ever having to apply a jailbreak patch, whereas with a retail OFW 4.xx console on which downgrading is not possible as QA flag is disabled by default, applying a jailbreak patch would have been absolutely necessary.

The Rebug site is down, most likely for good as Joonie retired last year & there is nobody active left in the team. No DEX OFW PUP has surfaced since 4.84 anyway so even if Joonie was still active he would not be able to keep making the REX releases we loved.
There were so few donations to Rebug through the years that tbph it's not very surprising that the retired member who paid for the hosting & domain finally decided to give it all up without even a warning as soon as the last active member retired.
It is always the same problem & it produces the same effects without fail.

Not sure what you mean by "going online", using the Internet is never a problem but if you are talking about online gaming through PSN, that's of course more of a conundrum. Generally speaking I would assume that you could use on DECR the same tricks as the ones DEX users rely on, ie firmware version & IDPS target ID spoofing if appropriate + adapting the NP environment debug setting appropriately.
However you should keep in mind that s#ny made changes to the PSN login in 4.88 & if you don't use the updated sprx file in charge of PSN login calls or find an alternative way to modify the login arguments sent to PSN by the console, the ban risk is high on CEX & at the time of speaking there is no "ready to deploy" workaround or fix. Evilnat may produce a new spoof feature in the next SEN Enabler update but even if does, will that be relevant in your case? I dunno.
I am NOT able to confirm whether or not the risk associated with connecting to PSN using tricks with a DECR reference tool on older firmware exists & is identical to the one on retail consoles.

Regarding homebrews, you should not expect all homebrews to work on your DECR console.
Every single homebrew that uses symbols in its source code either to apply patches or to execute vsh, lv2 or lv1 internal functions or snippets, set up hooks etc.. will automatically fail to work unless DECR 4.84 support is added specifically.
Because of that some homebrew binaries may crash on loading, others may work fine but crash when using specific features etc..
If you experience such problems with homebrews you wish to use but they are open source, the only solution is to add proper DECR 4.84 symbols & recompile.
And if the source code is closed, one could always patch the binary to modify symbols, however that implies that the binary needs to be analysed, all the symbols identified & patched, and without knowing the symbols to look for, the whole thing may get quite complicated.

Remember as well that while you need CFW to get extra features & Cobra with its iso support etc.., you can already do a lot of things natively on DECR including running homebrew & mounting game backups in legacy JB folder format.
The development features specific to DECR & DEH consoles should always be considered in conjunction with Target Manager & ProDG, those tools give you the means to leverage the features you need to use without CFW.
 
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All I'm concerned about now is using rebug online.
In your opinion should I use sen if I decided to go online with it?
IMO CFW=offline. On DEX/DECR You must change network type for retail but also spoofs IDPS and some stuff (and probably all tools for disabling syscalls etc. will not work on DECR). Waste of time and You cannot secure yourself in 100% from ban. I'm not a fan of playing online anyway, and also just strongly recommending to find better use for DECR than just playing games. It is unique piece of hardware which will not work eternally. ^^
 
Thank you @bguerville and @Berion for your solid help & advice.
I'm not going to really use the machine online anyway, I was just gathering information because I was unsure if DECR were exempt in anyway due to the nature of the machine.
I have no intention in opening it up like my other ps3's to change the thermal paste / remove RSX & CPU lids etc.....which i have done many times now, this particular machine is more of a collection piece. It has the extra ram with warranty seal intact i can mess about with certain software so I'm happy with that
Once again thank you all
 
I know this is an old thread but it has a lot of useful info from you vets, thank you. I picked up a working decr-1400a off ebay seemingly unopened with the warranty sticker still intact. Plan on using it as a linux box. Say, is there a resource that outlines just how these kits were used. I mean like in depth processes? I picked up a hard copy of "Programming the Cell Processor - Matthew Scarpino" and looking to tinker
 

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