So the Unlock completed, but the device is still locked.
Selected model: Coolpad CP3648A (Coolpad Legacy S)
Operation: Unlock network
Software version: 5.13
Work ID: 10883638
Connect phone in BROM/PRELOADER Mode
Waiting for device... OK
Driver: [MediaTek Inc.,wdm_usb,MediaTek PreLoader USB VCOM_V1632 (Android),usb2ser.sys,3.0.1504.0]
Device found at COM22 [PRELOADER]
Open port... OK
Send start cmd... OK
Get HW code from device... 0717
Get sec config... OK [00000001]
Active sec flags: [SBC]
Get HW & SW version from device... OK
HW VER: CA01, SW VER: 0200, HW SUB CODE: 8A00
Detect chip [MT6761]
Library Version [2]
Select platform... OK
Init BROM... OK
Force Charge... OK
Disable WatchDog Timer... OK
Force switch to BROM... OK
Waiting for device... OK
Driver: [MediaTek Inc.,wdm_usb,MediaTek USB Port_V1632,usb2ser.sys,3.0.1504.0]
Device found at COM6 [BROM]
Open port... OK
Send start cmd... OK
Get HW code from device... 0717
Get sec config... OK [000000E1]
Active sec flags: [SBC]
Get HW & SW version from device... OK
HW VER: CA01, SW VER: 0200, HW SUB CODE: 8A00
Detect chip [MT6761]
Library Version [2]
Select platform... OK
Init BROM... OK
Force Charge... OK
Disable WatchDog Timer... OK
Release testpoint, waiting 2 seconds
Advanced Bypass Security... OK
Waiting for device... OK
Driver: [MediaTek Inc.,wdm_usb,MediaTek USB Port_V1632,usb2ser.sys,3.0.1504.0]
Device found at COM6 [BROM]
Open port... OK
Send start cmd... OK
Get HW code from device... 0717
Get sec config... OK [000000E0]
Active sec flags: []
Get HW & SW version from device... OK
HW VER: CA01, SW VER: 0200, HW SUB CODE: 8A00
Detect chip [MT6761]
Library Version [2]
Select platform... OK
Init BROM... OK
Force Charge... OK
Disable WatchDog Timer... OK
Reopen port for libver2... OK
Get ME ID... OK
ME_ID = 0x7801AD37, 0x93B4BCD4, 0xE7313CC3, 0x116E7525
Get Chip ID... [MT6761]
Get SOC ID... [3A7062C288A16BDEA5DCB4DBB90A18D0DB39521C392F94AE996D904D5FE906B9]
Get sec config... OK [000000E0]
Load DownloadAgent... OK
Search DA... OK [5]
Send preloader... OK
Start preloader... OK
Checking preloader answer... OK
Send bootloader... OK
Start bootloader... OK
Wait for answer from bootloader... OK
Send SYNC signal... OK
Setup device enviroment... OK
Setup device parametres... OK
Receive DA SYNC signal... OK
Set DA parametres... OK
Get device connection agent... [BROM]
Get device info... OK
EMMC_ID: 0x150100514536334D42030170D3EB6669
Load EMI from phone... OK
Parse EMI config... OK
Init EXT RAM... OK
Send 2nd DA... OK
Get device info... OK
EMMC INFO:
EMMC_CNAME: QE63MB
EMMC_ID : 0x150100514536334D42030170D3EB6669
EMMC_BOOT1: 0x0000400000 (4.00Mb)
EMMC_BOOT2: 0x0000400000 (4.00Mb)
EMMC_RPMB : 0x0000400000 (4.00Mb)
EMMC_USER : 0x03A3E00000 (14.56Gb)
RAM INFO:
INT_SRAM: 0x000003A500 (233.25Kb)
EXT_RAM : 0x0080000000 (2.00Gb)
Checking USB status... USB_HIGH_SPEED
Read partitions info from phone... OK
Checking A/B state... OK
Read product info... [EXT4] ... OK
Product Brand : Coolpad
Product Manufacturer : Coolpad
Product Model : cp3648A
Product Name : full_cp3648a
Product Device : cp3648a
Product Board : cp3648a
Board Platform : mt6761
Build ID : 9.0.050.P1.190812.cp3648A
Build Date : Mon Aug 12 10:55:30 CST 2019
Display ID : 9.0.050.P1.190812.cp3648A release-keys
Security Patch : 2019-07-05
Version SDK : 28
Version Release : 9
Version Codename : REL
Firmware Version : buildfarm08121055
Userdata FS Type : EXT4
Read security partition from phone... OK
Read security files... OK
Read security files... OK
Read lock info... OK
Unlock... OK [DF1, UN]
Write lock info... OK
Write security partition to phone... OK
Network Unlock done!