Hello,
I was having some disconnection issues with android auto so I cleared data and cashe in zlink app. Now zlink app is deactivated. It is asking me to connect to internet, though I am connected. I tried different networks, rebooted the unit but nothing worked.
Please advise.

@Srdjan Maksimovic
Hello.
Please try to do the factory reset:
Settings > System > Reset Options > Erase all date(factory reset).
Alternatively, please use a Pin/Paperclip to press and hold the RST Button for 15 seconds to enter the recovery interface to do the factory reset.
(Tap "Wipe data/factory reset" > "Factory data reset" > "Reboot the system now".)
Here enclosed the operation video for your reference:
https://www.dropbox.com/scl/fi/i2wdsge29nrzuv9z9m26k/RST-HM.mp4?rlkey=7r773raqwkhr67dbppppl8z0c&dl=0