updated on
June 1st, 2023
approx reading time
4 Minutes
Sony learned from the PS3’s catastrophic "Other OS" removal and the PSP’s endless downgraders. For the PS4, they built a digital fortress. Every time you update, the console burns a microscopic, non-reversible fuse inside the Syscon (System Control) chip. Think of it like tearing pages out of a history book—once you’re on 10.00 or 11.00, the PS4 literally forgets it was ever on 9.00.
The "1302" error code is the console’s way of saying, "I remember being on version 10.50. You are trying to feed me version 9.00. That is impossible."
And yet, whispers of a "downgrade to 900 top" persist.
Firmware 9.00 is highly desirable in the hacking community because it was the last major firmware that had a reliable, user-friendly exploit (the pOOBs4 kernel exploit).
| Code | Meaning | Why It Appears | |------|---------|----------------| | SU-42118-6 | Update data corrupted or mismatched region | Trying to install lower firmware without patching | | CE-34878-0 | Application crash | Caused by kernel panic after failed exploit attempt post-downgrade | | CE-36329-3 | System software error | Corrupted user settings after downgrade | | SU-41344-9 | Cannot verify update file | Lower firmware version blocked by syscon |
For every success story, there are a dozen bricked consoles. The process is fraught with peril:
updated on
June 1st, 2023
approx reading time
4 Minutes
Sony learned from the PS3’s catastrophic "Other OS" removal and the PSP’s endless downgraders. For the PS4, they built a digital fortress. Every time you update, the console burns a microscopic, non-reversible fuse inside the Syscon (System Control) chip. Think of it like tearing pages out of a history book—once you’re on 10.00 or 11.00, the PS4 literally forgets it was ever on 9.00.
The "1302" error code is the console’s way of saying, "I remember being on version 10.50. You are trying to feed me version 9.00. That is impossible."
And yet, whispers of a "downgrade to 900 top" persist.
Firmware 9.00 is highly desirable in the hacking community because it was the last major firmware that had a reliable, user-friendly exploit (the pOOBs4 kernel exploit).
| Code | Meaning | Why It Appears | |------|---------|----------------| | SU-42118-6 | Update data corrupted or mismatched region | Trying to install lower firmware without patching | | CE-34878-0 | Application crash | Caused by kernel panic after failed exploit attempt post-downgrade | | CE-36329-3 | System software error | Corrupted user settings after downgrade | | SU-41344-9 | Cannot verify update file | Lower firmware version blocked by syscon |
For every success story, there are a dozen bricked consoles. The process is fraught with peril:
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