ERR 50
Canon DSLR Camera
Severity: CriticalWhat it means
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
-
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. -
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. -
Update the camera firmware to the latest version.
Firmware bugs can cause electronic errors.
Download the latest firmware from Canon's website. -
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.