Since you are using an older APK, be aware of the limitations compared to the modern MX Player:

Solution: This is a codec issue. Download the correct Neon custom codec from the XDA forums. Alternatively, switch from HW to SW decoder (tap the small "SW" icon on the top right while playing a video).

For Android 4.4.2, users cannot utilize the latest versions of MX Player (e.g., v1.40.x or newer). Analysis of the application's history indicates that specific legacy builds are required.

Want to listen to a video’s audio while using other apps? MX Player on Android 4.4.2 supports background playback with a simple toggle. This is perfect for turning video lectures or music concerts into audio-only streams.

On a standard Android 4.4.2 device (e.g., Samsung Galaxy S3, HTC One M7, or a generic tablet):

| Video Type | Stock Player | MX Player (Top Build) | | :--- | :--- | :--- | | 720p MKV (x264) | Stutters / No Audio | Smooth 30fps / AC3 Audio | | 1080p MP4 (High bitrate) | Crashes | Smooth with Audio sync | | AVI / DivX | Unsupported | Perfect playback via S/W | | Streaming via WiFi | Buffers heavily | HW+ reduces buffering |

Battery drain is roughly 15% per hour, which is excellent for a legacy device given the lack of modern GPU efficiency.