I’ve sent a private message and an email with the serial number. Thanks

@Sunshine the firmware given was installed successfully. However, the EU firmware failed and the router doesn't power on anymore. No LED lights on the front panel. The router seems to be unusable and...

@Sunshine Thank you for the update and working on the issue. Please see attached for the version of firmware currently installed.

ISP custom firmware (TPG Australia) for MR600 v2 is available to download on Official TP-Link website with no description or release notes to indicate that the firmware is only for TPG supplied...