PSP Wallpaper Shows on PC But Not on PSP? Complete Fix Guide

The PSP only displays wallpapers in specific formats, resolutions, and locations. If your image works on PC but not on the handheld, one of these requirements isn't met:

Checklist (Fix in Order)

1. File Format: Must be JPEG (.jpg/.jpeg), PNG (.png), GIF (.gif), or BMP (.bmp). No WebP, HEIC, AVIF, or TIFF. Convert via Squoosh or Paint.NET.
2. Resolution: PSP screen = 480×272. Images far larger may fail to decode or show black. Resize to exactly 480×272 (or 480×272 @ 72 dpi).
3. Color Space: sRGB only. No CMYK, no wide gamut (P3/Rec2020). Convert in your image editor.
4. File Size: Keep under 500 KB. Large files exceed the PSP's RAM buffer.
5. Filename: No special characters, emoji, or names longer than 31 characters. Use simple names like wallpaper01.jpg.
6. Folder Location (on Memory Stick / MS Duo):
   • PSP/PHOTO/ — for Photo app viewing.
   • PSP/THEME/ — for .ptf themes (contains wallpaper).
   • Not in root, PICTURE, DCIM, or subfolders of PHOTO.
7. Transfer Mode: Use USB Mass Storage (Settings → USB Connection) — not Media Go / MTP. Safely eject after transfer.
8. Set as Wallpaper: Photos → View image → Triangle → "Set as Wallpaper". Confirm top-screen preview.

Common Pitfalls

• Progressive JPEG: PSP decoder fails. Save as Baseline ("Standard") JPEG.
• PNG Transparency: Supported but renders on black — use opaque background.
• Corrupted FAT: Run chkdsk X: /f (X = drive letter) on PC.
• Fake/Defective Memory Stick: Test with H2testw. Counterfeits report false capacity.

Advanced: Custom Themes (.ptf)

Use PSP Theme Converter (PC) or CTF Tool to pack wallpaper + icons + sounds → install to PSP/THEME/. Survives reboot better than Photo-app wallpaper.

Test Image: Download a known-good 480×272 JPEG from PSPThemes.org → transfer → set. If it works, your images are the problem.