oppo r15 cph1831ex_11_a.02 not flash？？who help me！！！

[liliu]

Firmware package: CPH1831EX_11_A.02_180513_0f723ffa
Scanning for Qualcomm HS-USB QDLoader 9008 device...
Download Port: Qualcomm HS-USB QDLoader 9008 (COM15)
USB Driver: [Qualcomm Incorporated] qcusbser, version: 2.1.2.0, date: 7-8-2015
Initializing...
MSM Serial number: 0xc79dfff2
MSM HW ID: 0x0008c0e1 (SDM660)
OEM Public Key Hash: 0x0cf6c9ce73e7368aff1f442f67f9bc35372162c68561716c0ee2e43c5177553b
SBL SW version: 1
Sending prog_emmc_ufs_firehose_Sdm660_ddr.elf, size: 641.11 KiB... Done.
Attempting to run firehose... Done.
[VIP] Validated Image Programming is enabled.
Sending signed DigestTable [DigestsToSign_17085_persist_no_userdata_yes.bin.mbn]... Done.
Sending ping... Done.
Binary build date: Mar 20 2018 09:29:48
Sending configurations...
TargetName: MSM8996
MemoryName: eMMC
DateTime: Mar 20 2018 - 09:29:48
Version: 1
Firehose configured.
Processing rawprogram0_MSM_17085.xml
Hash of packet of size 213 bytes that target sent does not match hash in table. Rejecting this packet. See log
Expected: 1A991F5BA24063EBE979A1D1FED1BC4C0BEAAA2DBF0ABD677D9158A31D667D6F
Found instead: 5651228277DD5000325F8D4534097BAA357D6EE98BF43B8A703A941EC7F1B272
Resetting validation state.
ERROR 12: Line 1060: PACKET_HASH_MISMATCH
Erasing userdata... Failed to authenticate Digital Signature, resetting validation state
ERROR 11: Line 944: DIGITAL_SIGNATURE_DID_NOT_PASS
Done.
Erasing PrimaryGPT... Failed to authenticate Digital Signature, resetting validation state
ERROR 11: Line 944: DIGITAL_SIGNATURE_DID_NOT_PASS
failed
Erasing backupgpt... Failed to authenticate Digital Signature, resetting validation state
ERROR 11: Line 944: DIGITAL_SIGNATURE_DID_NOT_PASS
Done.
Writing oppostanvbk at 0x00A05000 (20480 sectors)... failed