hi sir 
AUTH info: MTK, version: 1
Firmware package: Extracted
BROM version[1]: 7.2137.0.0
 DA: MTK_AllInOne_DAA[0].bin
  hash: 0caf36f51e08b2331d07953b25e9d94058e451d2, size: 790.91 KiB
 version: 3.3001.00.00, start addr: 0x40000800
Connecting to BootROM...
 Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
 Hold the VOL UP to force MediaTek BootROM.
 Scanning BootROM or Preloader port... Done
 Detected []  [VID: 0000, PID: 0000] USB Serial Device (COM3)
Connection status: EHCI:HUB:HUB[#2]:USB 1.10 High-Speed
 USB Driver: [Microsoft] usbser, version: 10.0.19041.1202, date: 6-21-2006
failed to initialize usb device.
Error: timeout