PSP Downgrade Info to Avoid Brick

Before Doing a downgrade Read this guide first


PSP 200X (Slim) with TA88-V3:
- Downgrading to OFW 4.20 Impossible
- Downgrading to OFW 4.21 Possible
- Downgrading to OFW 5.00 Possible.
- Downgrading to OFW 5.01 Possible.
- Downgrading to OFW 5.02 Possible.
- Downgrading to OFW 5.03 Possible.
- Downgrading to OFW 5.51 Possible.
- Downgrading to OFW 6.00 Possible.
- Downgrading to OFW 6.10 Possible.

PSP 300X (Slim & Brite) with 03G Module:
- Downgrading to OFW 4.20 Impossible
- Downgrading to OFW 4.21 Impossible
- Downgrading to OFW 5.00 Possible.
- Downgrading to OFW 5.01 Possible.
- Downgrading to OFW 5.02 Possible.
- Downgrading to OFW 5.03 Possible.
- Downgrading to OFW 5.51 Possible.
- Downgrading to OFW 6.00 Possible.
- Downgrading to OFW 6.10 Possible.
- Downgrading to OFW 6.20 Possible.

PSP 300X (Slim & Brite) with 04G Module:
- Downgrading to OFW 4.20 Impossible
- Downgrading to OFW 4.21 Impossible
- Downgrading to OFW 5.00 Impossible.
- Downgrading to OFW 5.01 Impossible.
- Downgrading to OFW 5.02 Impossible.
- Downgrading to OFW 5.03 Impossible.
- Downgrading to OFW 5.51 Impossible.
- Downgrading to OFW 6.00 Possible.
- Downgrading to OFW 6.10 Possible.
- Downgrading to OFW 6.20 Possible.

PSP GO with 05G Module:
- Downgrading to OFW 4.20 Impossible
- Downgrading to OFW 4.21 Impossible
- Downgrading to OFW 5.00 Impossible.
- Downgrading to OFW 5.01 Impossible.
- Downgrading to OFW 5.02 Impossible.
- Downgrading to OFW 5.03 Impossible.
- Downgrading to OFW 5.51 Impossible.
- Downgrading to OFW 6.00 Impossible.
- Downgrading to OFW 6.10 Possible.
- Downgrading to OFW 6.20 Possible.

DONT KNOW YOUR BOARD MODEL?
USE THIS (Sign app - Runs on OFW)

Thanks Foxim8ly for this Guide
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