A photo or video won't open or play on another device
A photo or video that works on your phone refuses to open on a computer, TV or another phone. The usual reason is its format — the container named by its extension, and the codec packed inside it — and understanding that difference tells you whether a conversion will help.
Does this sound familiar?
- My computer says it can't open this photo from my phone
- The TV says the video format is not supported
- HEIC photos from an iPhone won't open on Windows
- A video plays on my phone but not on my laptop
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Method for this problem
Understand a media file's format before converting it
A media file has two layers: the container — named by the extension, like .mp4 — and the codec, the way the picture and sound are packed inside it, like H.264. A device refuses a file when it cannot read one of those layers, and knowing which one it is saves pointless conversions.
Source: Official documentationTesting: Not team-testedReports: none reviewed yet
Reviewed 9 Nov 2026
Applies to: Windows 10/11 computers; Android phones (Android 11 and later); Files received from iPhones and other Apple devices