Hello, guys!

Suddenly I damaged my configuration by a command "interface 1 disable", so I wasn't able to connect to router anymore.
I have backup of the configuration, so I decided to make factory reset.
I disconnected power cable, pressed reset button and waited for 5 seconds.
I made it again and again until I understood that I need to wait 5 seconds after green led becomes blinking, it is 20 seconds alltogether.
But after this manipulations my hEX RB750Gr3 brokes.
It doesn't beep at boot time.
When I connect power cable, PWR (blue) led lights for 3 seconds, then USR (green) lights for 11 seconds, then they go out for 2 seconds and the cycle repeats.
I think that Mikrotik go to cycle reboot.

To solve this, I decided to use Netinstall.
I used this article:
https://blog.ligos.net/2016-12-27/Recov ... evice.html

I installed this package:
https://download.mikrotik.com/routeros/ ... 6.46.5.npk

But as compared with the article, I don't see a progress bar, flashing process took 3-4 seconds and then router's status becomes "Ready".
It beeps one time, USR led goes out, but I can't WinBox connect neither by MAC nor by IP (192.168.88.1 I guess).

Moreover, after disconnecting power from router and connecting it again, it goes to cycle-reboot again.

So what I'm doing wrong and how I can recover?

But as compared with the article, I don't see a progress bar

Makse sure firewall, antivirus programs and network adapters not needed are all disabled.
Second step, use the netinstall version closer to the version of ROS that was installed on your Mikrotik... you will find previous versions here https://mikrotik.com/download/archive

Do this and everything will work...

I have no antivirus software, Netinstall added to firewall exceptions, Windows firewall is disabled.

Note that I tried to flash routeros-mmips-6.46.5.npk during last try, but have I flashed it or not I don't know.
Also, I use to keep ROS up to date. So, I used the last version of Netinstall.
Which one should I use?

but have I flashed it or not I don't know.

If the progress bar completed and "waiting for reboot appeared" yes you did it...

But as compared with the article, I don't see a progress bar, flashing process took 3-4 seconds and then router's status becomes "Ready".

I strongly suspect you have encountered a common netinstall problem where the install just doesn't happen. Fix is in the link.

But as compared with the article, I don't see a progress bar, flashing process took 3-4 seconds and then router's status becomes "Ready".

I strongly suspect you have encountered a common netinstall problem where the install just doesn't happen. Fix is in the link.

The solution is just a different version of netinstall...

Color me dubious. I've upgraded netinstall dozens of times over the past 12 years, and since this problem started showing up about four years ago it has never changed.

If the progress bar completed and "waiting for reboot appeared" yes you did it...

No, it is not.

I strongly suspect you have encountered a common netinstall problem where the install just doesn't happen. Fix is in the link.

Launch Netinstall, quickly select "previous install" (it's always selected, by the way) and press "Install"? No, this not helps.

Please don't suggest changing the version of Netinstall, changing the network adapter and other irrational things anymore.
At first, I have alredy checked this and other advices, thus I wasted my time which costs more, than this router.
At second, as a buyer of the product, I think, that all must work in recent version, also informative error messages should be shown.
If the developers of Netinstall don't agree with me, I better will not use Mikrotik products anymore.
I payed money for this device, and now I sit without Internet, because the device becomes a brick.

I payed money for this device, and now I sit without Internet, because the device becomes a brick.

No the device did not become "brick" but instead as you mention in your first post: Suddenly I damaged my configuration by a command. So you misconfigured your device...!

Please don't suggest changing the version of Netinstall

Is it that difficult to download a differrent version ?

changing the network adapter and other irrational things anymore.

I said disable, not change... It might be irrational for you that obviously can not perform a netinstall...

thus I wasted my time which costs more, than this router.

Then buy a new one since your time is so expensive... It is not our fault that you messed your cinfig and now you can not netinstall... Isn't that obvious ?

If the developers of Netinstall don't agree with me

We our not the developers, so you can contact Mikrotik and let them know...

Launch Netinstall, quickly select "previous install" (it's always selected, by the way) and press "Install"? No, this not helps.
Please don't suggest changing the version of Netinstall, changing the network adapter and other irrational things anymore.
At first, I have alredy checked this and other advices, thus I wasted my time which costs more, than this router.
At second, as a buyer of the product, I think, that all must work in recent version, also informative error messages should be shown.
If the developers of Netinstall don't agree with me, I better will not use Mikrotik products anymore.
I payed money for this device, and now I sit without Internet, because the device becomes a brick.

The "previous netinstall" trick works for me practically every day, so you must be encountering a different problem.

Have you ever performed a successful netinstall on any device? If not, it may be set up incorrectly. When I first started to use netinstall, I needed to play with things like "run as administrator," firewall, serial port crossovers (on units with serial ports), and the like. Others have had no success until activating with "Run in Windows 7 mode" and the like. I have seen a lot of knocking around to be done before netinstall will work for a new user. Luckily, once you get it working, it works for years if you don't change things.

Two previous postings of mine may help you: one and two. The first in particular enumerates a lot of traps you need to avoid; for example, ensuring the netinstall port is the ONLY active network connection on the machine.

And it's no use railing at us over your disappointment with getting your product to work -- we are MikroTik users, not MikroTik employees. If you have a complaint, mail it to support@mikrotik.com.

Assuming that NetInstall is set up correctly - if the router show up on the list, you're 99% of the way there really.

I've seen the problem where when you select to install and it flashes quickly that it's installing but doesn't actually do anything. The solution for me is that I just close NetInstall and re-open it again. The next time it goes through for me.

I've seen the problem where when you select to install and it flashes quickly that it's installing but doesn't actually do anything. The solution for me is that I just close NetInstall and re-open it again. The next time it goes through for me.

I have exactly the same experience. It took me hours to find this out.

I ve seen cases where more than 1 versions would never finish the installation process... Thats why i mostly choose previous versions until i find one that does the job...
So closing and opening netinstall would not help...

I've seen the problem where when you select to install and it flashes quickly that it's installing but doesn't actually do anything.

The proccess is : ready -> formatting ->installing-> reboot
I 've never seen a case where the above 4 steps completed one by one but netinstall did not actually happen.. So i guess the progress bar might went full but actually you never saw the words formatting and/or installing...

The proccess is : ready -> formatting ->installing-> reboot
I 've never seen a case where the above 4 steps completed one by one but netinstall did not actually happen.. So i guess the progress bar might went full but actually you never saw the words formatting and/or installing...

Usually what you see in the failure case is that when you hit the install button something flashes by too quickly to read in the progress bar, the router line and install button dim out for 10-15 seconds, then all the fields restore. Unfortunately, there is no message telling a novice that the netinstall didn't actually do anything, so they are easily fooled.

Yes, i guess they sould implement some kind of a popup message informing the user of a success or failure...

I ve seen cases where more than 1 versions would never finish the installation process... Thats why i mostly choose previous versions until i find one that does the job...
So closing and opening netinstall would not help...

I've seen the problem where when you select to install and it flashes quickly that it's installing but doesn't actually do anything.

The proccess is : ready -> formatting ->installing-> reboot
I 've never seen a case where the above 4 steps completed one by one but netinstall did not actually happen.. So i guess the progress bar might went full but actually you never saw the words formatting and/or installing...

No need to be difficult about it. Clearly if you've never seen the problem before it can't exist.

https://youtu.be/p_csT1RqST8

I'll describe it a bit more accurately: The router will show up on the list as 'Ready' however, when you press the install button, it quickly flashes as if it it does something but the progress bar remains blank. The router status will cycle very quickly and go back to being 'Ready', however, nothing has happened. The install button remains greyed out. However, it will cycle once again and go back to ready and you can keep going round and round as many times as you like but it doesn't do anything.

Simple solution for me is to close NetInstall and reopen it. On reopening NetInstall, you don't need to put the router back into NetInstall mode, it will automatically appear in the list as 'Ready' and then you can press the Install button and this time it works as intended.

The router will show up on the list as 'Ready' however, when you press the install button, it quickly flashes as if it it does something but the progress bar remains blank

Exactly, wich is what i said in my previous post, we never saw the formatting stage... we only saw ready and installing... no formatting or reboot at the end appeared... To me it would be obvious that netinstall not succeeded...

As for the close and open of netinstall... it might have worked for you for other reasons, communication problem with the device or something else... nothing indicates problem of the software itself...
I had cases where i tried 4 different versions, isnt that obvious that i was closing and opening the program again ? So if that's the case as soon as i opened netinstall for second time, it should have worked... But it didn't...
Also, tell me how do you explain that it does not work the first time but it works the second because you just open and close... so what does it actually change ?

had cases where i tried 4 different versions, isnt that obvious that i was closing and opening the program again ? So if that's the case as soon as i opened netinstall for second time, it should have worked... But it didn't...
Also, tell me how do you explain that it does not work the first time but it works the second because you just open and close... so what does it actually change ?

Only if you opened the SAME version of netinstall twice, after getting the failure the first time. Opening each one once may not trigger the solution.

What does it actually change? I don't know. I'll be happy to debug MikroTik's bug if they pay me my consulting rate, and then I will be able to tell you what reopening it changed. Otherwise, they ought to fix it. Enough people have reported it!

Yes, i guess they sould implement some kind of a popup message informing the user of a success or failure...

Not logical. They do report success. They cannot explicitly report failure due to an MT bug that aborts the process without intending to.

Yes, i guess they sould implement some kind of a popup message informing the user of a success or failure...

Not logical. They do report success. They cannot explicitly report failure due to an MT bug that aborts the process without intending to.

To me it would be obvious that netinstall not succeeded...

Yes, because you are familiar with netinstall. To a brand new user, entirely unobvious!