PS4 Modded Warefare PS4 revert + teensy++2.0

[mrbig4eva]

I finally decided to revert the PS4 Pro which is compatible model for this revert guide for a permant mod with the 3 way switch, so bought teensy++2.0 and voltage regulators and 100-200 ohms resistor and followed guide exactly on modifiying the teensy++2.0, i have cut 5v line to to convert to 3.3v and soldered the voltage regulators.

Now the issue come when measuring the voltage output on smaller voltage regulator with multi-metre it shows as 3.0v output, when it should read 2.7v as modded warefares guide, which is needed to get safe Nor & Syscon dumps without interference from other ic chip trying communicate with Nor & Syscon.

I've desolder and retraced my steps several times to make sure its not my soldering job, but that does not seem to be the obvious issue here.

Also made sure the Teensy board and regulators are correct ones not some chinese fake copies.

Been few days searching web with no answers, and even commented on modded warefare youtube channel with no answers, so has anyone else come across this problem and how they got around this problem?

 

[Thujone]

Hello! I'm essentially having the exact same problem documented here (though I'm unable to post there due to being a newbie):
https://www.psx-place.com/threads/modded-warefare-ps4-revert-teensy-2-0.47024/

I'm measuring almost exactly the same voltage (around 3.3v) whether through the regulator or not. I thought I may have had a short between the 5v pad and the empty pin but nope.

Wondering if this is a big deal and if people can still get decent read rates of the Nor chip even with 3.3v?

---

. Staff Edit: Threads Merged ​

Looks like our threads got merged.

I stopped messing with the Teensy and watched more of the video and forgot he switches the second regulator to the other side of the Teensy. I switched mine as well (which means the opposite pin gets soldered this time) and now mine is reading around 1v, which may be too low?

 

[RbrdM]

What voltage regulator do you have? I bought the ones that MW shows in his tutorial from AliExpress and for me it went down to ~2.78V. I've spoken to someone and they said that ~3.03V should be good enough to go on with the revert, since they've done it as well and it worked. You also have to bridge 3.3V on the back of the Teensy and cut the trace between it and 5V. Be sure the pins are exactly opposite if you wanna move it up, I didn't bother doing that and it worked just fine but it depends where you want to put the Teensy.

 

[Thujone]

Well, first thing's first, read the datasheet . I messed around with a few more regulators and when they started smoking I realized I probably had the wrong pins. The datasheet tells you which should be input and output.

I tried two different regulators. The first one is closest to the one in the video (based on model number) and somehow doesn't drop the voltage at all. The second I picked up based on its higher voltage dropout value. This one drops the voltage to around ~3v instead of 3.3v. I might just drive on and try the revert with this setup, since neither are getting close to 2.7v.

First: https://www.digikey.com/en/products/detail/umw/XC6206P302MR/17635256

Second: https://www.digikey.com/en/products/detail/torex-semiconductor-ltd/XC6206P302MR-G/10161720

 

[RbrdM]

From what I've heard, this could be from the Teensy being a counterfeit or some wrong placement of the pins. What you need is the G version of it which you already tried and if that didn't already drop it enough then the Teensy might be the problem.

Like I said, from what I've heard, ~3.03V works as well when using the Teensy so you could give it a shot. I'm not sure what could happen, but if that person said it worked I'm gonna assume it works.

You could maybe try some alternatives like this Reddit thread says.

 

[Thujone]

Thanks for the tips! I have everything soldered up and I'm questioning one piece of all of this before I start... the recommendation is to solder a 3.3v point on the Teensy and the 2.7v (or in my case 3.0v) on the small regulator to the exact same point on the motherboard. Wouldn't this then mean that point is receiving 3.3v the entire time, thus making the small regulator pointless?

Do people swap which voltage point is being used on the Teensy when working with SYSCON or NOR?

 

[Thujone]

Update: successfully completed the revert.

Here are the differences/tips from the video tutorial

1. Spansion NOR chips aren't supported by the SPIWay version linked in the NORway github. You have to track down a version v0.50 or higher.
2. You must use the SYSCON tools to manually enable permanent debug after dumping.
3. The VCC point on the smaller linear regulator was good enough (at ~3.0v) to read/write both the NOR and SYSCON. I ended up not using a 3.3v connection at all.
4. For alternative points which connect to surface mount components, consider scratching away solder mask from the board itself and solder there. It may help prevent accidentally removing components.
5. EDIT: I also had to patch my SYSCON slightly differently. The recommended method was B but it resulted in an error "getManufacturingMode(1627)". I instead had to patch it with method A, then patch the patched SYSCON with method C before flashing.

Went from 12.00 to 11.52 . Bought the console as "not working" and was surprised when it booted into 12.00 no problem. Figured reverting would be a fun project, even if the results were ultimately pointless.

Cheers!

 

[RbrdM]

Happy to hear you got it working! Yeah I've also been documenting differences from tutorials online and I'll make a document about all the issues someone can go through and so on. I'll finish it in a couple of days.

Spansion NOR chips aren't supported by the SPIWay version linked in the NORway github. You have to track down a version v0.50 or higher.

Yes, Spansion chips need a newer version of SPIway. Because it wasn't possible before, a lot of replies you might see on the internet suggest to use another programmer, like a CH341a. Quick fix is using Wee Tools, preferably the last free version which is v1.0.1. It has SPIway in it and it's version v0.60 so it's the best probably.

Went from 12.00 to 11.52 . Bought the console as "not working" and was surprised when it booted into 12.00 no problem. Figured reverting would be a fun project, even if the results were ultimately pointless.

I reverted from v10.01 to v10.00. I admit I was a bit dissapointed thinking I could probably go lower like v9.60. But it's not bad either because you can now upgrade to the latest FW version v12.50 and go back anytime you want. Just make sure to always dump and check hashes, and keep those dumps noted like "DUMP V12.50" or something. Any later dumps they're not needed to be kept, only to verify integrity. (And also make sure it's the same HDD)

Also, for Syscon Tools be more careful when writing and stuff, like when switching firmwares you should write NVS/SNVS of older/newer firmwares instead of re-patching or writing the full syscon chip. So if you have a v10.00 dump, and you're on v12.50, just write NVS/SNVS of v10.00 dump to your chip and you're good to go (after writing to the NOR chip, which you have to write it fully unless there's another way). Syscon Tools has a chance to freeze on you and brick your chip, so I use the most minimal writing options. Wee Tools also has a Syscon flasher but it's from the same developer so I don't think it makes a difference.

I'm saying that because the tool froze on me at block 60 on the Syscon chip while I was writing it so I thought it bricked it, but turns out I was fine. I usually don't erase anything, I just write which overwrites. If anyone else sees this and thinks of better stuff or I may have accidentally said something bad just let me know.

 

[mrbig4eva]

Sorry guys i got side tracked for awhile so not checked on here for awhile when no one replied due to health, so what i have done is change the tiny regulator which sat around for awhile after checking some datasheets to reduce it further from e
Ebay TOREX - XC6206P252MR - V REG LDO 0.25A 2.5V, SMD, SOT-23-3 now I am getting 2.49v reading which i understands work from another thread the person claims he tested few voltages between 2.6v -2.4v lowest as they could not get good reads on 2.7v.

Since i got health issue still ongoing I have not attempted to continue the permanent revert just yet, and since laspe BD-JD got released from gezine, im jailbroken,

Now i am trying to search if there a way to dump nor flash and syscon on JB ps4 without the teensy mod for backup and just avoid lifting the pin, if anyone knows anything please let me know, im hoping as with PS3 you can just dump nor & syscon on PS4 too