Blackview devices are now getting more and more attention these days as they steadily rolling out new products, one of which is the Blackview Sigma. Here, you will find blackview sigma stock rom which can be very useful in restoring your phone to factory state, clear errors, unbrick it, etc.
The Blackview Sigma belongs to their Octa-Core series with nice specifications. Blackview sigma sports MediaTek MT6592 processor with 8 CPU cores clocked at 1.7GHz each bundled with 2GB of RAM and 16GB of ROM. Full HD display, 5.5-inch, 18MP main camera, 8MP secondary camera and 2,500mAh battery.
Download Blackview Sigma Stock Firmware