click identify devices and got error like this:
Firmware package: PD1818EF_EX_A_1.10.12_vivo_qcom_LA.UM.6.6.2.r1-04200-89xx.0_sdm439_split
Scanning for Qualcomm HS-USB QDLoader 9008 device...
Download Port: Qualcomm HS-USB QDLoader 9008 (COM4)
Connection status: EHCI:HUB[#6]:USB 2.00 High-Speed
USB Device: [Qualcomm CDMA Technologies MSM] QHSUSB__BULK
USB Driver: [Qualcomm Incorporated] qcusbser, version: 2.1.2.7, date: 8-2-2017
Initializing...
MSM Serial number: 0x4274fc91
MSM HW ID: 0x000bf0e1 (SDM439), OEM ID: 0x0000 (Qualcomm), MODEL ID: 0x0000
OEM Public Key Hash: 60ba997fef6da9f05885fa11f1dd6d2a90d052a257a09c2075d7246cc73c0d43
SBL SW version: 0
Firehose: prog_emmc_firehose_8937_ddr.mbn
hash: 529bb68157dbe44079e6092f80e94b6828fac84e, size: 381.46 KiB
oem version: compiler0176
qc version: BOOT.BF.3.3.2-00063
variant: FAADANAZA
Loading firehose... Done
Handshaking...
Sending ping... Done
Sending configurations...
TargetName: 8937
MemoryName: eMMC
Version: 1
Firehose configured.
Failed
platform: msm8937, cpu abi: arm64-v8a
manufacturer: vivo
board: QC_Reference_Phone, name: msm8937_64
brand: vivo, model: vivo 1817
build id: OPM1.171019.026, version: 8.1.0 [Oreo] (OPM1.171019.026 release-keys)
build date: Fri May 7 11:47:04 CST 2021, security patch: 2021-05-01
build description: msm8937_64-user 8.1.0 OPM1.171019.026 eng.compil.20210507.114704 release-keys
crypto state: encrypted
When i wan to flash got error again like this
Firmware package: PD1818EF_EX_A_1.10.12_vivo_qcom_LA.UM.6.6.2.r1-04200-89xx.0_sdm439_split
Scanning for Qualcomm HS-USB QDLoader 9008 device...
Download Port: Qualcomm HS-USB QDLoader 9008 (COM4)
Connection status: EHCI:HUB[#6]:USB 2.00 High-Speed
USB Device: [Qualcomm CDMA Technologies MSM] QHSUSB__BULK
USB Driver: [Qualcomm Incorporated] qcusbser, version: 2.1.2.7, date: 8-2-2017
Initializing...
Processing rawprogram_unsparse_no_qcn.xml
Writing PrimaryGPT at 0x00000000 (34 sectors)... WARNING Unauthorized tag ''
Failed at addr 0x00000400
what should i do?