Ensure you have the MTK USB All Drivers and Spreadtrum Drivers installed on your PC. Without these, the software will not detect your phone. Step 2: Download & Extract
If you are looking to download and use Volcano Box Utility V3.05, this guide covers everything you need to know about its features, installation, and how to use it safely. What is Volcano Box Utility V3.05? volcano box utility v3 05 download top
It can bypass or reset pattern locks, PINs, and passwords without losing user data on many older models. Ensure you have the MTK USB All Drivers
MT6572, MT6575, MT6577, MT6582, MT6589, etc. Spreadtrum (SPD): 6610/20, 6600L, 8810, 9830, etc. MSTAR & Coolsand: Various feature phone chipsets. How to Download and Install Volcano Box Utility V3.05 What is Volcano Box Utility V3
This is almost always a driver issue. Check your Device Manager to see if the phone appears under "Ports (COM & LPT)" when connected in BROM or Download mode.
It allows you to back up a working firmware (Read Flash) from one phone and write it onto a bricked device.