Canon EOS 5D MARK IV, Instruction Manual

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If a problem occurs with the camera, first consult this Troubleshooting
Guide. If this Troubleshooting Guide does not resolve the problem,
contact your dealer or nearest Canon Service Center.
If the battery’s remaining capacity is 94% or higher, the battery will
not be recharged (p.526).
Do not use any battery other than genuine Canon Battery Pack
LP-E6N/LP-E6.
If (1) the battery charger or battery has a problem or (2)
communication with the battery failed (with a non-Canon battery
pack), the protection circuit will stop charging, and the charge
lamp will blink in orange at a high speed. In the case of (1), unplug
the charger’s power plug from the power outlet. Detach and
reattach the battery to the charger. Wait a few minutes, then
reconnect the power plug to the power outlet. If the problem
persists, contact your dealer or nearest Canon Service Center.
If the internal temperature of the battery attached to the charger is
high, the charger will not charge the battery for safety reasons (lamp
off). During charging, if the battery’s temperature becomes high for
any reason, charging will stop automatically (lamp blinks). When the
battery temperature goes down, charging will resume automatically.
Make sure the battery compartment cover is closed (p.44).
Make sure the battery is installed properly in the camera (p.44).
Recharge the battery (p.42).
Make sure the card slot cover is closed (p.45).
Troubleshooting Guide
Power-Related Problems
The battery does not recharge.
The charger’s lamp blinks at high speed.
The charger’s lamp does not blink.
The camera is not activated even when the power switch is set to <
1
>.