Hi !
Im very new in this RouterOS , purchase a RB153 on Ebay and when power on can log in.
Im afraid I format the nand.
Now try to reinstall the 2.9.6 RouterOS version with Netinstall , but when select the router
in packages dissappear every packages (in packages section can see anything)and can´t install.
In Netinstall tellme:
<use previous key> (WF9bIYo0JgoZagFvsP6g9N3qAztQ6mrWXcTeEpFUzul6mXNQmebX7k/3kyR0WzX61IxHE+21vILuCzhtNmk1uA==)

Any help is very very welcome.
Thanks.

RB153 is mipsle router and you have to download these packages (any other packages will be removed from the list if you try to install those)

also, try to install newer version, since they contain a lot of bug fixes, at least 2.9.51 should be installed, or latest in 3.x line (3.30)

Thanks for info.
Download, installed, now run ok.
Start now to learn how to do make this work .