@Askar, you're asking the same thing again with a slightly different story.
Presuming this is the same stick you posted about 2 days ago, ideally you would have backed up your original firmware before flashing (as most tutorials for flashing custom firmware suggest), presuming you didn't do that.
If you originally had the stock MA5671A firmware, you could attempt to load the rooted variants from the Hack-GPON page, but I'm not sure if they start it by default.
You could also inquire in the Telegram channel, as they're the ones doing the mods and roots.