Update error : Bad file error message will appear when a different controller firmware is being used to upgrade a controller
In the example above, an RFS4000 firmware is used to upgrade an NX75 which resulted in the error.
WiNG 5.x controllers
When a wrong model controller firmware is being used for an upgrade
Use the correct controller firmware and the issue will be resolved. For example, if controller model is NX75, the firmware file should starts with NX7500-x.x.x.x-xxxx.img (The x represents firmware version)