Default [Q] Sencor Element 7 v3 hard reset


I would like to ask for help. I donīt know if this is correct thread but I have to try it.

Thanks to this forum I was able to repair my broken HTS Wildfire S an I learned how to work with this.

But now I have problem with Sencor Element 7 V3.

My son blocked this device and without internet access is impossible to renew Google account.

I search internet how to make hard reset but no combinations of button press is working.

Does somebody know how to help me, please?

Thank you very much, Martin