Use only trusted CFW sources (e.g., Infinity, PRO-C2).
Follow install guides exactly (battery charged, AC plugged in).
Use genuine Sony Memory Stick Pro Duo.
Backup NAND (via CFW) before major changes.
Handle carefully; avoid heat/moisture.
Note: Full bricks (no LED activity) are usually hardware/jTAG territory. Semi-bricks (logo freeze) are often recoverable via Pandora Battery + Magic Memory Stick (PSP-1000/2000 only). PSP-3000/Go require specialized hardware programmers.