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| Check | Method | |--------|---------| | | Official firmware ~80–120 MB. Anything smaller is corrupted. | | MD5 / SHA-1 hash | Compare with community-verified hashes (available on /r/VitaHacks or Vita dev wikis). | | Source | Only from official Sony CDNs or trusted archives (e.g., darthsternie’s firmware archive). Avoid random Google Drive links. |
