ERR 50
Canon DSLR Camera
Severity: CriticalWhat Does This Error Mean?
ERR 50 means an internal electronic control system has malfunctioned. This is a broad error covering the camera's main processing board. Turn off the camera, remove the battery for 30 seconds, then try again.
Affected Models
- Canon EOS Rebel series
- Canon EOS 5D
- Canon EOS 6D
- Canon EOS 7D
- Most Canon DSLRs
Common Causes
- Temporary electronic glitch
- Main circuit board failure
- Firmware corruption
- Static discharge damage
- Overheating affecting electronic components
How to Fix It
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Remove the battery for 30 seconds, then reinsert.
This performs a hard reset of all electronic systems. Many ERR 50 occurrences are temporary and clear with a reset.
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Let the camera cool down if it has been in direct sun or heavy use.
Overheating can cause temporary electronic errors. Let it cool for 10-15 minutes in shade.
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Update the camera firmware to the latest version.
Firmware bugs can cause electronic errors. Download the latest firmware from Canon's website.
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If ERR 50 persists after reset and cooling, the main board may need repair.
A persistent ERR 50 usually indicates a hardware failure on the main circuit board.
Frequently Asked Questions
Is ERR 50 repairable?
If it is a temporary glitch, a battery removal fixes it. If it is a board failure, repair is possible but may not be cost-effective on entry-level bodies.
Can static electricity cause ERR 50?
Yes. Static discharge through the camera body can damage electronic components. Avoid changing lenses in dry, windy conditions where static builds up.