AUTH info: MEIZU, version: 0
BROM version[0]: 7.1817.3.0
Loading DA: MTK_AllInOne_DA.bin (6.51 Mi😎
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 DOWN to force MediaTek BootROM.
Scanning BootROM or Preloader port... Done.
Detected MediaTek USB Port (COM7)
Connection status: UHCI:HUB:USB 1.16 Full-Speed
USB Driver: [MediaTek Inc.] wdm_usb, version: 3.0.1437.1, date: 9-11-2014
Connecting Bootrom... Done.
Sending Download Agent... failed
Platform: MT6755_S01, Hw ver: 0xCB00, Sw ver: 0x0001
Secure config: 0x07
Error: 6004 (S_SECURITY_SLA_FAIL)
[AUTH] Serial link authentication failed