Prerequisite To Flash Xtouch A2 Air Lte MT6735 :-
Download Newest SP Flash Tool is very useful utility for fixing soft brick or Update cases especially for the MediaTek Phones. You could flash Stock or Custom Rom,s of your choice .
Download Mediatek Usb Vcom Drivers.
Download Xtouch A2 Air Lte Stock Rom Flash Files.
Follow Detailed Instruction MTK Phones Flashing With Sp Flash Tool.