If you already have motorola's official EU rom and it's not updating OTA, change the software channel and test OTA.
I did the following steps.
First insert the Retail ROM (official by motorola).
https://mirrors.lolinet.com/firmware/motorola/oneli/official/RETAIL/
I suggest not inserting the latest version of the ROM. That way you can test OTA updates.
Then I changed the software channel to "reteu". Before it was "retcn" and OTA didn't work.
Finally I locked the bootloader. IMPORTANT: You can only block if the installed ROM is official motorola.
Note: At each step, I did a factory master reset.