03-20-2015, 11:00 AM (This post was last modified: 03-14-2016, 04:58 PM by gursewak. Edit Reason: NEW UPDATED INFO )
this may be warning or advice for all mediatek or any other chip based device users-
*Never use SP flash tool version which don't support your device(for mtk chips) .first search your device supported version and download and use it.
*Never use Preloader.bin named file of other device to flash in your phone .if your model and device are same then take risk of flashing it .also check before using preloader.bin file present in your stock rom as some manufacturers tweak them during flashing it.
FOR THIS I WILL RECOMMEND READ BACK FEATURE IN SP FLASH TOOL AND PROCESS IT WITH MTK DROID TOOLS 2.5.3 .THE PRELOADER.BIN FILE PROCESSED IS BEST FILE YOU WILL GET FOR YOUR DEVICE.
*Don't unnecessarily flash preloader.bin file on your file.
REMEMBER YOU MAY FLASH A ROM WITHOUT FLASHING PRELOADER.BIN FILE.
ONLY IN CASE OF FIRMWARE UPGRADE YOU REQUIRE TO FLASH THIS FILE.
SO IN DOWNLOAD MODE UNTICK PRELOADER.BIN FILE.
*In QUALCOMM processors the bootloader file is partition.mbn or partition.bin named file.
**REMEMBER DON'T TAKING MY POINTS SERIOUSLY WILL BRICK YOUR PHONE**
IF YOU HAVE YOUR PHONE'S WARRANTY LEFT THEN YOU CAN TAKE RISKS BUT IT WILL RESULT IN YOUR PHONE AWAY FROM YOU FOR MORE THAN A MONTH
UPDATE: IF YOUR PHONE IS SHOWN AS MTK USB PORT TRY THIS
SELECT FIRMWARE UPGRADE/DOWNLOAD MODE
SELECT YOUR STOCK PRELOADER FILE.
CLICK DOWNLOAD AND CONNECT YOUR PHONE SWITCHED OFF.
IT MAY OR MAY NOT WORK
IF NOTHING SHOWS IN DEVICE MANAGER TRY INSTALLING USB VCOM DRIVERS MANUALLY AND INSTALL MTK USB PORT FROM IT.