I had a few times where I've had to dive into the bootloaders to rescue weirdly "bricked" equipment. I recovered all of them, even that one time where I had a power outage in the middle of a bootloader update (talk about REALLY bad timing, it's a quick process) - it took me longer to find a way of downloading the factory firmware (from Mikrotik's site) than it did to load it up and reboot the router. I absolutely love Mikrotik's flexible and amazingly easy way of doing things.
@MikroTik Couuld you guys please make more videos on installation and configuration of some famous use cases for containers Please start with a monitoring solution installed on router OS (Prometheus+grafana+.......) and configuration for Mikrotik devices to send metrics
Boot Loop, many LTE devices not start after upgrade and physical power down/up fix starting them on ros6, many times we must replace a capacitos when netinstall cannot be done - This is not like that MikroTik do perfect software and often we reach problems with out-of-box by using reset button and no access to device with ros7 - those show even new can not work.