The tablet has a 4K screen, but peak brightness is only ~350 nits. You will not get true HDR10 or Dolby Vision. For the best experience, install movies with SDR (Standard Dynamic Range) or convert HDR to SDR using HandBrake’s "Tone Mapping" feature.

| Symptom | Probable Cause | Solution | |---------|---------------|----------| | “Cannot play this file” | No H.265 hardware decoder | Use MX Player with SW decoder (CPU-intensive) | | Video lags / stutters | Bitrate too high (>20 Mbps) | Re-encode 4K file to H.264 1080p @ 10 Mbps | | File not copying (error) | FAT32 limit on SD card | Format SD as exFAT; split file using FFmpeg | | Audio but no video | Codec unsupported (AV1) | Remux to H.265 using HandBrake | | Out of storage | 4K file too large | Stream via SMB instead of copying |

| Error | Likely Cause | Solution | |-------|--------------|----------| | “Can’t play this video” | Codec not supported | Convert to H.264 (less efficient but compatible) | | Audio but no video | Missing HEVC hardware decoder | Use software decoding (VLC) — may overheat | | Video freezes after 2 sec | Insufficient GPU memory | Reduce bitrate to 10 Mbps via HandBrake | | Storage full | 4K file too large | Use external USB OTG drive or microSD |

This is the most common "install" method for SRKWikipad users.