Download Snokor Rocket Z5000 official stock firmware from below and use the instructions provided to flash.
Do not hesitate to post in comments section if you are unable to download the firmware package, have problems flashing the ROM, or other issue.
Downloads
⇒ Snokor Rocket Z5000 – Download
How to flash Snokor Rocket Z5000 flash file
Follow the flashing instructions available via this link to install this firmware package, click here.