PS4 Can't Revert But Should be able too.

finalman

Member
Basically I've got a PS4 slim CUH-2202 being a pain to revert.

It's on 12.50 I dumped the NOR and can revert to 10.50 <-> 10.70.

I dumped the SC(Syscon), flashed the recommended patched file and resoldered the lifted leg

Now with PS4 Wee Tools 0.95 I've flashed all 12 patched NOR variants (Options 3-14) after each NOR flash I reflash the patched SC file and it continues to boot 12.50 normally. Though I did not try NOR patch options 1 and 2 as they are for Fats 10xx/11xx.

What I have noticed in "PS4 Wee Tools 0.95" if I select the NOR file and choose "8: Additional tools" then "6: Base validation and entropy stats" I get:
_______________
_/ NOR validator \____________________________________________________

FW version 12.50 / Active slot A

Checking magics

header : OK
MBR1 : OK
MBR2 : OK

Checking partitions

emc_ipl_a : [07f41f9ac4370ce7736885ed5fa4372c] OK FW 10.50 <-> 11.00
emc_ipl_b : [07f41f9ac4370ce7736885ed5fa4372c] OK FW 10.50 <-> 11.00
eap_kbl : [dd11599ca2b0c74a179dca205943affb] Fail FW Fail
wifi : [c23090c0bdce1bcb0f6bada5ef340e4e] OK FW 9.50 <-> 11.00

Entropy statistics

Entropy : 7.51434
0xFF : 11.81%
0x00 : 3.13%
Other : 85.06%
______________________________________________________________________
Press [ENTER] to go back


Could the
Fails be the cause of my issue?

Restoring the original NOR and SC files the system continues to boot 12.50.

UPDATE:
Just realised I needed to install the smaller voltage reg to bring the teensy 2++ voltage down to 2.6 or so volts. Since I read\wrote the NOR and Syscon at 3.3v am I boned now or what?

UPDATE 2:
Got a later paid version of the PS4 Wee Tools app that says it supports FW 12.50 and the inactive slot details changed from what the earlier PS4 Wee Tools version said.

PS4 Wee Tools v0.9.5 was saying:
FW (backup) :10.50 <-> 11.00

PS4 Wee Tools v1.0.8 is saying:
FW (backup) :10.50 <-> 12.50.

So just a heads up if you are running 12.50 firmware you might not be able to revert even if an earlier version of PS4 Wee Tools says that you should be able to.
 
Last edited:
Back
Top