Help to Unbrick my Router, please

Anyone could kindly dump a image from this router? Its an UAP-AC-LR. Lost bootloader, and i cant recover him at all. I have a ART partition, so i can recovery at least atheros calibration after i can access again this unit. I've screwed up after trying to flash via external programmer, and didnt check backup after dump. Still have here the dump backup, but when i flash, the router dont show any signs of life. From serial, i get nothing.

What exactly is OpenWRT-related from your issue?
Ubiquiti should help you better...

Well, i was thinking maybe someone could kindly dump a firmware from eeprom. I was planning to install openwrt on this device.