My 18R2 shows ER4 after doing a firmware upgrade, what do I do?

This usually occurs when a firmware upgrade is applied to a 18R2 Controller that has a script loaded or the USB drive used for the .s19 file has a CSV file on it.

To resolve the error, clear the script from the 18R2 Controller by pressing and holding TEST and SYNC simultaneously for 10 seconds. (Both the TEST and SYNC buttons will blink, and 00 will show on the top 7-segment display when the scripts have cleared.)

Then restart the 18R2 Controller.

Was this article helpful?
0 out of 0 found this helpful

Articles in this section

See more
Our Support Team Hours:
9:00am - 5:00pm EDT Monday to Friday. We can be reached by phone at 518-741-4300 or email help@cobrafiringsystems.com
Emergency Shoot Site Support
COBRA offers a 24-hour support system for on-site emergencies. If you are on a shoot site and encounter a show-stopping issue, please reach out to us via phone at 929-930-6868.