: The official software used to "burn" the firmware onto the chip via a PC. Download SP Flash Tool .

: The largest Russian-speaking community for mobile firmware. This is often the best source for "proshivka" (firmware) files for older devices. Search 4PDA MT6589 Forum.

: Turn off your phone completely. Connect it to the PC via USB. The software should detect it and start the yellow progress bar.

If you are looking for firmware for a device based on the chipset (a popular quad-core processor from MediaTek used in older smartphones), Where to Download MTK6589 Firmware