Advanced users can repack a working stock ROM into universal form:
MT6572 Universal Firmware: The Ultimate Guide to Flashing and Repair MediaTek MT6572 mt6572 universal firmware
Unplug the device and hold the power button to initiate the first boot cycle. Troubleshooting Common Flashing Errors Advanced users can repack a working stock ROM
A: No. MT6572 has no official Lollipop kernel sources. Unofficial 5.1 builds exist but are extremely buggy (no RIL, no WiFi). Unofficial 5
Change the USB port (use USB 2.0 instead of 3.0), replace the cable, or reinstall the VCOM drivers.
Select if you are repairing a phone of the same model. If the phone is completely dead or a different model, you might need to use "Firmware Upgrade," though this is riskier. Click the "Download" button (green arrow) at the top.
Before you begin the flashing process, you must ensure you have the necessary tools. The flashing tools are designed for Windows.