[Android Q&A, Help & Troubleshooting] anoshione:
my phones bootloader is not unlocked, its running ZUI 3.9.075 st .

everytime I try to flash a latest rom like ZUI 4.0.475 st or ZUI 10.5.254 st , its shows Sahara error, I have made a line in the log file bold, the process stay stuck in that line for a minute then shows Sahara error

I don't have much idea about whats the problem is, first time working with qfil,....

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Can anyone help?

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here's the log file....

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A2020-06-23 01:45:52.103 Validating Application Configuration

2020-06-23 01:45:52.106 Load APP Configuration

2020-06-23 01:45:52.138 COM:3

2020-06-23 01:45:52.138 PBLDOWNLOADPROTOCOL:0

2020-06-23 01:45:52.138 PROGRAMMER:True

2020-06-23 01:45:52.138 PROGRAMMER:C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst\prog_emmc_ufs_firehose_Sdm660_ddr.elf

2020-06-23 01:45:52.138 RESETSAHARASTATEMACHINE:False

2020-06-23 01:45:52.138 SAHARAREADSERIALNO:False

2020-06-23 01:45:52.138 SEARCHPATH:C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst

2020-06-23 01:45:52.138 RAWPROGRAM:

2020-06-23 01:45:52.138 rawprogram0.xml

2020-06-23 01:45:52.138 PATCH:

2020-06-23 01:45:52.138 patch0.xml

2020-06-23 01:45:52.138 ACKRAWDATAEVERYNUMPACKETS:False

2020-06-23 01:45:52.138 ACKRAWDATAEVERYNUMPACKETS:100

2020-06-23 01:45:52.138 MAXPAYLOADSIZETOTARGETINBYTES:False

2020-06-23 01:45:52.138 MAXPAYLOADSIZETOTARGETINBYTES:49152

2020-06-23 01:45:52.138 DEVICETYPE:emmc

2020-06-23 01:45:52.138 PLATFORM:8x26

2020-06-23 01:45:52.138 VALIDATIONMODE:0

2020-06-23 01:45:52.138 RESETAFTERDOWNLOAD:True

2020-06-23 01:45:52.138 MAXDIGESTTABLESIZE:8192

2020-06-23 01:45:52.138 SWITCHTOFIREHOSETIMEOUT:30

2020-06-23 01:45:52.138 RESETTIMEOUT:200

2020-06-23 01:45:52.138 RESETDELAYTIME:2

2020-06-23 01:45:52.138 METABUILD:

2020-06-23 01:45:52.138 METABUILD:

2020-06-23 01:45:52.138 FLATBUILDPATH:C:\

2020-06-23 01:45:52.138 FLATBUILDFORCEOVERRIDE:True

2020-06-23 01:45:52.138 QCNPATH:C:\Temp\00000000.qcn

2020-06-23 01:45:52.138 QCNAUTOBACKUPRESTORE:False

2020-06-23 01:45:52.138 SPCCODE:000000

2020-06-23 01:45:52.138 ENABLEMULTISIM:False

2020-06-23 01:45:52.139 AUTOPRESERVEPARTITIONS:False

2020-06-23 01:45:52.139 PARTITIONPRESERVEMODE:0

2020-06-23 01:45:52.139 PRESERVEDPARTITIONS:0

2020-06-23 01:45:52.139 PRESERVEDPARTITIONS:

2020-06-23 01:45:52.139 ERASEALL:False

2020-06-23 01:45:52.139 Load ARG Configuration

2020-06-23 01:45:52.155 Validating Download Configuration

2020-06-23 01:45:52.155 Image Search Path: C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst

2020-06-23 01:45:52.155 RAWPROGRAM file path: C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst\rawprogram0.xml

2020-06-23 01:45:52.155 PATCH file path:C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst\patch0.xml

2020-06-23 01:45:52.155 Programmer Path:C:\Users\rhsxr\Desktop\L78011_CN_OPEN_USER_Q00025.0_P_ZUI_10.5.254_ST_190404_qpst\prog_emmc_ufs_firehose_Sdm660_ddr.elf

2020-06-23 01:45:52.495 Process Index:0

2020-06-23 01:45:52.518 Qualcomm Flash Image Loader (QFIL) 2.0.2.3

2020-06-23 01:46:18.388 Programmer Path:C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\prog_emmc_ufs_firehose_Sdm660_ddr.elf

2020-06-23 01:46:18.389 Image Search Path: C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware

2020-06-23 01:46:18.392 RAWPROGRAM file path: C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\rawprogram0.xml

2020-06-23 01:46:18.392 PATCH file path:C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\patch0.xml

2020-06-23 01:46:28.554 Image Search Path: C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware

2020-06-23 01:46:28.560 RAWPROGRAM file path: C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\rawprogram0.xml

2020-06-23 01:46:28.560 PATCH file path:C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\patch0.xml

2020-06-23 01:46:30.407 Start Download

2020-06-23 01:46:30.417 Program Path:C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\prog_emmc_ufs_firehose_Sdm660_ddr.elf

2020-06-23 01:46:30.442 ***** Working Folder:C:\Users\rhsxr\AppData\Roaming\Qualcomm\QFIL\COMPORT_3

2020-06-23 01:48:00.581 Binary build date: Apr 27 2018 @ 03:04:33

2020-06-23 01:48:00.585 QSAHARASERVER CALLED LIKE THIS: 'C:\Program Files (x86)\Qualcomm\QPST\bin\QSaharaServer.ex'Current working dir: C:\Users\rhsxr\AppData\Roaming\Qualcomm\QFIL\COMPORT_3

2020-06-23 01:48:00.585 Sahara mappings:

2020-06-23 01:48:00.588 2: amss.mbn

2020-06-23 01:48:00.590 6: apps.mbn

2020-06-23 01:48:00.591 8: dsp1.mbn

2020-06-23 01:48:00.591 10: dbl.mbn

2020-06-23 01:48:00.591 11: osbl.mbn

2020-06-23 01:48:00.596 12: dsp2.mbn

2020-06-23 01:48:00.597 16: efs1.mbn

2020-06-23 01:48:00.599 17: efs2.mbn

2020-06-23 01:48:00.600 20: efs3.mbn

2020-06-23 01:48:00.600 21: sbl1.mbn

2020-06-23 01:48:00.600 22: sbl2.mbn

2020-06-23 01:48:00.600 23: rpm.mbn

2020-06-23 01:48:00.607 25: tz.mbn

2020-06-23 01:48:00.609 28: dsp3.mbn

2020-06-23 01:48:00.610 29: acdb.mbn

2020-06-23 01:48:00.610 30: wdt.mbn

2020-06-23 01:48:00.610 31: mba.mbn

2020-06-23 01:48:00.615 13: C:\Program Files (x86)\Qualcomm\QPST\bin\Firmware\prog_emmc_ufs_firehose_Sdm660_ddr.elf

2020-06-23 01:48:00.617

2020-06-23 01:48:00.618 01:48:00: ERROR: function: sahara_rx_data:277 Unable to read packet header. Only read 0 bytes.

2020-06-23 01:48:00.618

2020-06-23 01:48:00.621 01:48:00: ERROR: function: sahara_main:983 Sahara protocol error

2020-06-23 01:48:00.622

2020-06-23 01:48:00.624 01:48:00: ERROR: function: main:320 Uploading Image using Sahara protocol failed

2020-06-23 01:48:00.625

2020-06-23 01:48:00.625

2020-06-23 01:48:00.625 Download Fail:Sahara Fail:QSaharaServer Fail:Process fail

2020-06-23 01:48:00.625 Finish Download