English: Selecting a 32-bit (ARMv7) codec on a 64-bit device.
If the .zip file was saved to your default Download folder, MX Player will automatically scan your storage upon launch.
| Symptom | Likely Cause | Fix | | :--- | :--- | :--- | | "Custom codec failed" red text | Wrong architecture (e.g., v7 on v8) | Re-download the ARMv8 variant. | | No sound, video plays fast | MX Player version mismatch | Update MX Player to exactly 1.49.0 (do not use beta 1.50). | | App crashes on file select | Corrupted .so file | Re-extract the zip. Crc32 checksum should match community releases. | | Codec loads but AC3 still silent | HW+ decoder conflict | Go to Decoder → Enable "HW+ audio tunneling" → Disable "Use HW+ for AC3". | | "No custom codec option" in menu | Using MX Player from Amazon Appstore | Uninstall and sideload the neutral APK from APKMirror (Neon version). |
Due to licensing restrictions, newer versions of MX Player often drop support for DTS, AC3, and EAC3 audio formats. Fortunately, the developer community on XDA Developers, specifically users like , have created custom codec packs to fix this.
Before downloading a file, verify what version variant your exact app package needs. Open your app.
April 19, 2026 | Category: Tech Tutorials
: Scroll to the bottom and tap Custom codec .