PLEASE I NEED X556-H371A-M-170925V170 STOCK ROM OR FIRMWARE. MY REASON IS THAT I WANT TO FLASH MY HOT 4 PRO AND UPGRADE MY FIRMWARE. PLEASE ITS VERY URGENT. KINDLY SEE https://www.hovatek.com/forum/thread-29640.html TO KNOW MORE ABOUT MY PROBLEM , AND HOW YOU CAN HELP ME.