hi device was i have i not sure remember CPH1729_11_A.28 but i flash witj oppo flash tool CPH1729_11_A.06_171219 flash ok but phone stuck black screen an not open after i try flash with ufi dongle but its give error
AUTH info: MTK, version: 1
Firmware package: CPH1729_11_A.06_171219
BROM version[1]: 7.1917.3.0
DownloadAgent: MTK_AllInOne_DAA[0].bin
hash: 5e597e6e07f965596b34a0ce5de84298f45ab176, size: 514.33 KiB
version: 3.3001.2017/09/22019/08/30 15:53:48, 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 [BootROM] MediaTek USB Port_V1632 (COM41)
Connection status: XHCI:HUB3:USB 2.00 High-Speed
USB Driver: [MediaTek Inc.] wdm_usb, version: 3.0.1504.0, date: 1-22-2015
Connecting Bootrom...
Sending Download Agent...
Platform: MT6763, Hw ver: 0xCA01, Sw ver: 0x0001
Secure ver: 0x00, BL ver: 0x00
Secure config: 0x00
SRAM size: 256 KiB
DRAM size: 3 GiB
SOC ID: 8525b004d66a7b097aa77040b7b13024b8e40c9db0c801d5f75d94d8aaa57249
ME ID: 466e715b36ad613d60fc29bf9eca0f95
Storage type: eMMC
Card/BGA: BGA (Discrete embedded)
Manufacturer ID: 0x15 (Samsung)
Product name: GD6BMB (0x474436424d42), rev: 0x01, serial number: 0xABF9A83C
Manufacturing date: Oca 2018
CID: 15010047 4436424D 4201ABF9 A83C15F5
Capacity: 29.13 GiB(31,281,119,232 bytes)
Boot1: 4096 KiB
Boot2: 4096 KiB
RPMB: 4096 KiB (key exist)
User area: 29.12 GiB(31,268,536,320 bytes)
USB speed: High-Speed
Verifying SoC: passed
Verifying CID: passed
Writing preloader, size: 250.14 KiB
Error: 0xC0050003 (STATUS_DOWNLOAD_EXCEPTION)