a528b restore security not done [Answered]

[blinet]

hi, to unlock bootloader on KG locked device A528B U5 I wiped partitions:
modemst1
modemst2
fsc
fsg
to achieve zero imei, {WIPE SECURITY function did not work, only WIPE PARTITONS}

After successfully unlocking bootloader, I can't load back security, imei,
write security backup ok, but imei zero
restore from backup manually 4 files but imei zero

Selected model: Samsung SM-A528B (Galaxy A52s 5G)
Operation: Restore From Backup
Software version: 7.14
BITA or less is supported by EDL loader

Waiting for device... OK
Device found at COM14
Port: Qualcomm HS-USB QDLoader 9008
Open port... OK
Reading device info... OK
Serial Number: 2461556xxx
Sahara ver: 2
OEM PK HASH: 4A14C27B518909E1D807FEACB4BB617CCBCE1713313BB94BE4 E2D39A2CFAEB2B3EA243530EFEB082DCF1F87AFE4CFE54
CPU: SM7325 (Snapdragon 778G 5G)
Vendor: Samsung
MSM HW ID: 001920E100200000
SBL SW Ver: 00000000
Prepare loader file... OK
Loader hash: DAE3C3043F8514E2669C120ABA1D283576F2634D
Loader PK hash: 4A14C27B518909E1D807FEACB4BB617CCBCE1713313BB94BE4 E2D39A2CFAEB2B3EA243530EFEB082DCF1F87AFE4CFE54
Loader version: 6.5
Sending loader... OK
FireHose initialization... OK
Detecting memory type... OK [UFS]
Get storage info... OK
Storage info:
Type: UFS
Name: KM2L9001CM-B518
Page size: 1000
Block size: 1000
Partition count: 6
LU0 size: 0x1DA8C00000
LU1 size: 0x0000800000
LU2 size: 0x0000800000
LU3 size: 0x0000400000
LU4 size: 0x0020000000
LU5 size: 0x0000800000
Read partitions info from phone... OK
Checking A/B state... OK
Read product info... OK
Serial Number : RZCT30AECAL
Product Brand : samsung
Product Manufacturer : samsung
Product Model : SM-A528B
Product Name : a52sxqxx
Product Device : a52sxq
Product Board : lahaina
Board Platform : lahaina
Build ID : RP1A.200720.012
Build Date : Tue Nov 7 10:54:39 +07 2023
Display ID : UP1A.231005.007.A528BXXU5FWK4
Security Patch : 2023-11-01
Version SDK : 34
Version Release : 14
Version Codename : REL
Firmware Version : A528BXXU5FWK4
Userdata FS Type : F2FS
Restore security...
Done!

I tried to load partitions via z3x jtag but with error

Operation: Writing by Vendor (Binary Read/Write)
Write/Erase check: Disabled
BlockSize: Auto

Writing: LUN0, Partition: modemst1, Offset: 0x000000109000, Size: 0x000000300000 (3,00 MB)
Writing file: modemst1.bin, Offset: 0x000000000000, Size: 0x000000300000 (3,00 MB)
ERROR: Start sector 265 not allowed for LUN 0 through EDL Flash
Error writing at address: 000000109000 ... Retry #1
ERROR: Start sector 265 not allowed for LUN 0 through EDL Flash
Error writing at address: 000000109000 ... Retry #2
ERROR: Start sector 265 not allowed for LUN 0 through EDL Flash
Error writing at address: 000000109000 ... Retry #3
Too many errors. Writing has been stopped

Operation canceled

is it possible to restore imei only with these partitions? directly with the ISP?

tnx

[Z3X]

Hello. Seems like loader not allow to write this partitions.

[blinet]

thanks for reply, problem solved

yes, loader problem

with ISP security restored

Operation: Writing by Vendor (Binary Read/Write)
Write/Erase check: Disabled
BlockSize: Auto

Writing: LUN 0, Partition: modemst1, Offset: 0x000000109000, Size: 0x000000300000 (3,00 MB)
Writing file: modemst1.bin, Offset: 0x000000000000, Size: 0x000000300000 (3,00 MB)
Done writing partition (Write speed: 2422,40 Kb/s)
Writing: LUN 0, Partition: modemst2, Offset: 0x000000409000, Size: 0x000000300000 (3,00 MB)
Writing file: modemst2.bin, Offset: 0x000000000000, Size: 0x000000300000 (3,00 MB)
Done writing partition (Write speed: 2364,67 Kb/s)
Writing: LUN 0, Partition: fsc, Offset: 0x000000709000, Size: 0x000000020000 (128,00 KB)
Writing file: fsc.bin, Offset: 0x000000000000, Size: 0x000000020000 (128,00 KB)
Done writing partition (Write speed: 777,59 Kb/s)
Writing: LUN 5, Partition: fsg, Offset: 0x000000006000, Size: 0x000000300000 (3,00 MB)
Writing file: fsg.bin, Offset: 0x000000000000, Size: 0x000000300000 (3,00 MB)
Done writing partition (Write speed: 2425,04 Kb/s)

All done

Disconnected