The reset button is always available on default unless you DEACTIVATED IT and thus it may not be fixable but others here might have their devious ways!
Netinstall should work! See excerpt from below
In the meantime to avoid such things in the future consider configing off the bridge......
viewtopic.php?p=901360#p901360
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H. NETINSTALL - should be used if any security concerns arise OR if your firmware version seems to be acting strangely or the firmware version is really old!!
Another way of getting your unit(s) up to date is to netinstall devices. I would say it's preferred because it also installs recent default configuration while upgrades convert running configuration. A few versions between your running ROS and current one brought some big changes and it is possible for upgrade process to fail to convert old config to new one. In addition, new default config makes much more secure setup in certain aspects. In other words, if you are many firmware versions behind, netinstall is the least painless way to get to the latest config and is more secure.
Sage tips/advice on NetInstall if having difficulties......
a. Regarding Etherboot for all devices, the most error-free method is - to press the reset button, keep it pressed, power on the device, and wait until the device shows up in the NetInstall window, then release the button. This holds true for the Audience as well.
b. Try to have a direct cable connection between computer and device (laptop to device for example).
c. A trick which helps for some is to only use a dumb switch in between, nothing else connected.
d. Also on THE COMPUTER being used to run netinstall, there may be issues if there are multiple NETWORK interfaces. If experiencing difficulties on the PC, it is best to ensure all other NETWORK interfaces are turned off.
e. Enable NETBIOS, over TCP/IP ( active vice automatic or disabled )!
User Comment: In my experience, Netinstall often fails to detect devices after the ethernet link to the MT device goes down and up again while netinstall is running.
Either place a dumb switch between the PC and the MT box to netinstall, so the PC ethernet link stays up during reboot while entering Etherboot.
Or first put the MT box in Etherboot mode, wait for the link to come up and start Netinstall after the link is up.
General Refs:
https://help.mikrotik.com/docs/display/ROS/Netinstall
https://help.mikrotik.com/docs/pages/vi ... Id=1409054
https://wiki.mikrotik.com/wiki/Manual:E ... set_button
RESET VIDEO FROM MikroTik -
https://www.youtube.com/watch?v=6Unz92rABs8