Oppo A83 (CPH1729) rebuilding user data successfully done by Hydra Tool
Screen Short:
Logs:
1. Run MTK Tool and choose "Sosc"
2. Choose Brand and Module.
3. Go to "Service"--> "Tool"
4. Choose "Ultra Power Option"
5. Choose "Rebuilt User Data" from Method / Option drop down menu
6. Click on "Execute"
7. Connect device to computer using USB Data Cable.
8. Wait until the operation is completed.
2. Choose Brand and Module.
3. Go to "Service"--> "Tool"
4. Choose "Ultra Power Option"
5. Choose "Rebuilt User Data" from Method / Option drop down menu
6. Click on "Execute"
7. Connect device to computer using USB Data Cable.
8. Wait until the operation is completed.
Screen Short:

Logs:
BR=====================================
Searching for MTK Device...Found
Port Identification :Flashmode BROM
FriendlyName :MediaTek USB Port_V1632 (COM18)
SymbolicName :\??\USB#VID_0E8D&PID_0003#5&16e57acc&0&1#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Driver Ver :01/22/2015,3.0.1504.0
Handshaking...Ok
Identifying Hardware ID.....
BROM CPUID : 0690MT6763T[6763]
BROM HW_SW_VER : 8A00 CA01 0001 0000
getMTKPayloadExploit : 0690
#Executing Exploit..
#SUCCESS..
Handshaking...Ok
Identifying Hardware ID.....
BROM CPUID : 0690MT6763T[6763]
BROM HW_SW_VER : 8A00 CA01 0001 0000
SECURE VERSION : 00
BL VERSION : FE
BR Secured : 00
NORMAL BOOT
Preparing Download Agent..
DA : 6763_F156FF6B3D.bin
Agent: MTK_DOWNLOAD_AGENT -HYDRA
Ver : MTK_AllInOne_DA_v3.3001.2017/09/22.09:22
Init : Loader [1]
Sending : Accepted
Identifying Protocol...
Protocol : New
Synchronization...SYNC
Mode : brom
Preloader Initialization...
Parsing preloader_oppo6763_17101.bin
Init : Accepted
Execute Secondary Loader
Init : Loader [2]
Executing : SYNC
Reading Device UniqueID, RAM and Flash Chip Info...
UNIQUE ID : 839DD8C74A1E5FAD4C88B685D687818D
ERAM Size : 0x0000000000040000 -256 KB
IRAM Size : 0x0000000080000000 -2 GB
eMMC BOOT1 : 0x0000000000400000 -4 MB
eMMC BOOT2 : 0x0000000000400000 -4 MB
eMMC RPMB : 0x0000000000400000 -4 MB
eMMC USER : 0x00000003A3E00000 -14.561 GB
eMMC CID : 150100514536334D420326FD97AB5531 - QE63MB
DA Speed : high-speed
Reading GPT-EMMC [0x00008000] 130 Items
Reading System Info
Brand : OPPO
Vendor : OPPO
Model : OPPO A83js
ID : N6F26Q
SDK : 25
Release : 7.1.1
ABI : arm64-v8a
CPU abilist : arm64-v8a,armeabi-v7a,armeabi
Locale : en-US
Description : full_oppo6763_17101-user 7.1.1 N6F26Q 1526236878 release-keys
Device : M6763E
Board : full_oppo6763_17101
Display ID : A83jsEX_11_A.14_180514
Security Patch : 2018-05-05
Platform : mt6763
FRPPST : /dev/block/platform/bootdevice/by-name/frp
StorageType : mtp
Userdata State : Encrypted
Autobackup Partitions
-preloader[0x00000000]512 KB ->preloader.bin...Ok
-> Renaming Preloader.... preloader_oppo6763_17101.bin
Creating Scatter file... C:\Hydra Tool\\Backup\Auto\0690__050421112658\MT6763T_Android_scatter.txt
-pgpt[0x00000000]32 KB ->pgpt.bin...Ok
-frp[0x05A88000]1024 KB ->frp.bin...Ok
-nvdata[0x07B88000]64 MB ->nvdata.bin...Ok
-persist[0x0F800000]48 MB ->persist.bin...Ok
-nvram[0x1A000000]64 MB ->nvram.bin...Ok
Done!!!
C:\Hydra Tool\\Backup\Auto\0690__050421112658
MTK Phone Loader is NOW RUNNING.
Reading Device UniqueID, RAM and Flash Chip Info...
UNIQUE ID : 839DD8C74A1E5FAD4C88B685D687818D
ERAM Size : 0x0000000000040000 -256 KB
IRAM Size : 0x0000000080000000 -2 GB
eMMC BOOT1 : 0x0000000000400000 -4 MB
eMMC BOOT2 : 0x0000000000400000 -4 MB
eMMC RPMB : 0x0000000000400000 -4 MB
eMMC USER : 0x00000003A3E00000 -14.561 GB
eMMC CID : 150100514536334D420326FD97AB5531 - QE63MB
Reading GPT-EMMC [0x00008000] 130 Items
Reading System Info
Brand : OPPO
Vendor : OPPO
Model : OPPO A83js
ID : N6F26Q
SDK : 25
Release : 7.1.1
ABI : arm64-v8a
CPU abilist : arm64-v8a,armeabi-v7a,armeabi
Locale : en-US
Description : full_oppo6763_17101-user 7.1.1 N6F26Q 1526236878 release-keys
Device : M6763E
Board : full_oppo6763_17101
Display ID : A83jsEX_11_A.14_180514
Security Patch : 2018-05-05
Platform : mt6763
FRPPST : /dev/block/platform/bootdevice/by-name/frp
StorageType : mtp
Userdata State : Encrypted
-------------------------------------
Operation : Rebuild Userdata
Processing...
Erasing FRP Partition...
Rebuilding Userdata... Ok
Elapsed Time : 00:00:48
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