Noob Tutorial: How to downgrade/flash your PS3 from firmware 3.70 to 3.55 via ProgSkeet/Teensy++ and install 3.55 Kmeaw CFW - Page 11 - PS3Hax Network

yoshio_221 · 12-05-2011

Hey, I was wondering if I could do this of my stock firmware was 3.66. I'm reading on some tutorials that if the stock firmware was 3.56+ then I can't do it.. Thanks!

OGzxFTW · 12-05-2011

Originally Posted by yoshio_221

Hey, I was wondering if I could do this of my stock firmware was 3.66. I'm reading on some tutorials that if the stock firmware was 3.56+ then I can't do it.. Thanks!

No you cant, factory firmware has to be 3.55 or below.

Anyway back to my question, i cant seem to find a decent NAND downgrading tutorial/video anywhere, any chance someone who has done this to a ps3 with NAND could make a tut please.

jackandjill · 12-05-2011

i just read that progskeet is now compatible to downgrade for 4.0 as well but i am guessing there might be some files that are specific to this firmware so was wondering is it possible to get these files and also i think its good time to update this post for the latest firmware as i trust only this website on the final say of the firmware hack for ps3 (DUH!)
i have slim running 4.0 any issues to downgrade by buying the progskeet?

rasec1c · 12-08-2011

Witch dongle is best to put the ps3 in factory mode? I was searching and most of then talk about jailbraiking from 3.41. E3 card reader or EcliPS3 are able to put the ps3 in factory mode?

yoshio_221 · 12-09-2011

Originally Posted by OGzxFTW

No you cant, factory firmware has to be 3.55 or below.

Anyway back to my question, i cant seem to find a decent NAND downgrading tutorial/video anywhere, any chance someone who has done this to a ps3 with NAND could make a tut please.

Wow.. Just bought Teensy for nothing then. Woops haha. What about E3?

OGzxFTW · 12-10-2011

Originally Posted by yoshio_221

Wow.. Just bought Teensy for nothing then. Woops haha. What about E3?

E3 Only downgrades NOR Chips, which are found in PS3 Slims and some of the old fats
If you have a FAT model with CECHH or above then you have a NOR chip, if its below that it will be NAND
If you have a ps3 slim it will have NOR but it has to be a certain model for it to be downgraded, if your slim is a CECH-20..A upto cech-251.B then these models can be downgraded, anything that was made after them cannot be downgraded

Progskeet can downgrade both NOR and NAND you just need the right 360 clip for your chip
E3 - Only NOR chips

Edgelessdiamond · 12-12-2011

I'm thinking of getting a progskeet and having my friend solder it in for me, my ps3 is a fat with nor I believe. CECHP01 Hes an expert at soldering and then from there I can do the software side....
I was at a party this weekend and someone updated it via a disc. I've also thought about using teensy++. The main thing I'm worried about, is keeping my files on my hdd intact. Do I have to format my hdd, or will I still be able to use it?

Also If I Use progskeet does it fit in the ps3 with it together?

shinali · 12-14-2011

Could I use this method to unbrick a 3.41 cfw PS3? I messed up appldr and now it seems to be unable to boot into anything, even recovery mode (did the whole thing with harddrives, took it apart and removed battery, etc). If I can get the same console EID and such, I could use those to put into downgrade.bin and flash it with that, would that work?

MAK84 · 12-19-2011

just got a ps3. it came with ofw 3.60 out of the box(currently on ofw 4.00), can i use progskeet to downgrade. will it work?

rasec1c · 12-19-2011

No you cant MAK84, factory firmware has to be 3.55 or below.

12-05-2011	#103
jackandjill Apprentice Join Date: Jul 2011 Posts: 6 Likes: 2 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	upadate for 4.0 i just read that progskeet is now compatible to downgrade for 4.0 as well but i am guessing there might be some files that are specific to this firmware so was wondering is it possible to get these files and also i think its good time to update this post for the latest firmware as i trust only this website on the final say of the firmware hack for ps3 (DUH!) i have slim running 4.0 any issues to downgrade by buying the progskeet?

12-08-2011	#104
rasec1c Apprentice Join Date: Dec 2011 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Witch dongle is best to put the ps3 in factory mode? I was searching and most of then talk about jailbraiking from 3.41. E3 card reader or EcliPS3 are able to put the ps3 in factory mode? Last edited by rasec1c; 12-10-2011 at 05:27 AM.

12-12-2011	#107
Edgelessdiamond Member Join Date: Nov 2011 Posts: 35 Likes: 0 Liked 6 Times in 5 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'm thinking of getting a progskeet and having my friend solder it in for me, my ps3 is a fat with nor I believe. CECHP01 Hes an expert at soldering and then from there I can do the software side.... I was at a party this weekend and someone updated it via a disc. I've also thought about using teensy++. The main thing I'm worried about, is keeping my files on my hdd intact. Do I have to format my hdd, or will I still be able to use it? Also If I Use progskeet does it fit in the ps3 with it together? Last edited by Edgelessdiamond; 12-12-2011 at 01:10 AM.

		PS3Hax Network - Playstation 3 Hacks and Mods > PS3Hax > PS3 \| Downgrading and Flashing
Noob Tutorial: How to downgrade/flash your PS3 from firmware 3.70 to 3.55 via ProgSkeet/Teensy++ and install 3.55 Kmeaw CFW

12-05-2011	#101
yoshio_221 Member Join Date: Dec 2007 Posts: 109 Likes: 5 Liked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Hey, I was wondering if I could do this of my stock firmware was 3.66. I'm reading on some tutorials that if the stock firmware was 3.56+ then I can't do it.. Thanks!

12-14-2011	#108
shinali Apprentice Join Date: Dec 2011 Posts: 2 Likes: 0 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Could I use this method to unbrick a 3.41 cfw PS3? I messed up appldr and now it seems to be unable to boot into anything, even recovery mode (did the whole thing with harddrives, took it apart and removed battery, etc). If I can get the same console EID and such, I could use those to put into downgrade.bin and flash it with that, would that work?

12-19-2011	#109
MAK84 Apprentice Join Date: Nov 2011 Posts: 3 Likes: 0 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	just got a ps3. it came with ofw 3.60 out of the box(currently on ofw 4.00), can i use progskeet to downgrade. will it work?

12-19-2011	#110
rasec1c Apprentice Join Date: Dec 2011 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	No you cant MAK84, factory firmware has to be 3.55 or below.

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