Note: If the battery compartment of an affected unit contains the marking illustrated below, the product is NOT affected by the phenomenon described above, even if the serial number is within the ranges mentioned above.
Speedlite 600EX-RT Speedlite Transmitter ST-E3-RT
To arrange to have the affected units inspected and serviced for this phenomenon at no cost, please contact our Canon Service Centres.
Contact Information for Inquiries
Australia: Call 13 13 83 (select option 2, then option 2)
New Zealand: Call 0800 222 666 (select option 3, then option 1)