MTK 6771 read pattern lock failed

[Deadoc3]

I'm trying to remove or read pattern lock on Oppo A91. Customer need user data on phone for legal purpose.


I have tried to read pattern lock but this is log FAILED:

Waiting for MTK port.....Detected {COM20}... OK Connecting to Comport........ OK
Handshake... OK
Read chip id... OK
Search hardware profile... OK
Read chip ver... OK
Chip id: 0x0788_8A00_CA00
Chid name: MT6771
Chip type: XFLASH
Read target config... OK
Protection: SBOOT DAA SWJ MEMREAD MEMWRITE CMD88
Read bloader version... OK
Dump emi config...
Load Download Agent... OK
Jump to booloader... OK
Wait sync signal... OK
Send SYNC signal... OK
Setup device environment... OK
Initiate hardware components... OK
Setup device parameters... OK
Read device connection agent... BROM
Initiate EXT RAM... OK
Send download agent... OK
Read device info... OK
UFS INFORMATION:
LUN0: 4.00 MB
LUN1: 4.00 MB
USER AREA: 119.17 GB
UFS ID: H9HQ16AFAMMDAR
RAM INFORMATION:
INTERNAL SRAM: 224.00 KB
EXTERNAL DRAM: 8.00 GB
Change to high speed port... OK
Reading device information... OK
Brand: alps
Model: oplus_mssi_64_cn
Product: sys_oplus_mssi_64_cn
Manufacturer: alps
Android Version: 11 (Android 11)
Security Patch: 2022-10-05
Build ID: RP1A.200720.011
Display ID: RP1A.200720.011 release-keys
Build Date: Sat Oct 8 23:13:19 CST 2022
Build: 1665241164488
Read pattern lock... FAILED
[FS ERR] FAILED TO MOUNT USERDATA PARTITION

Using option New Exploit i have this error:

Waiting for MTK port.....Detected {COM20}... OK Connecting to Comport........ OK
Handshake... OK
Read chip id... OK
Search hardware profile... OK
Read chip ver... OK
Chip id: 0x0788_8A00_CA00
Chid name: MT6771
Chip type: XFLASH
Read target config... OK
Protection: SBOOT DAA SWJ MEMREAD MEMWRITE CMD88
Read bloader version... OK
Dump emi config...
[PROTOCOL ERR] [0x0000081d]

Any idea for remove or read pattern lock?

[easy-team]

Originally Posted by Deadoc3

I'm trying to remove or read pattern lock on Oppo A91. Customer need user data on phone for legal purpose.


I have tried to read pattern lock but this is log FAILED:



Using option New Exploit i have this error:




Any idea for remove or read pattern lock?

not supported sir without losing data