01/03/2026
SAMSUNG A055F BIT-1 TO BIT-9 KNOX GUARD TO COMPLETE
Destiny Electronics & Repairing Shop
For Advanced Repairing only
1. Connect the ISP Pinouts to F64 Ultra
2. Once the IC is connected, go to the partition tab
3. Set the read format size to 256 MB and read all the Raw Access: User, Boot-A, Boot-B, RPMB, and EXT_CSD (except FFU)
4. Read all the security partitions such as Protect1, Protect2, Sec cfg, Nvram, Nvdata, Efs, Sec_Efs, Sec 1
5. Turn the eMMC into Power OFF mode
6. Enter Boot mode by shorting RST to the ground and change the voltage (Previously in ISP Mode, VCC: 3.0, VCCQ: 2.40, CLK: 104 MHz). Now set the CLK to 52 MHz and press connect
7. Once connected, write the FFU provided (make sure FULL FACTORY RESET SETTINGS and SMART PATCHES are enabled)
8. Write EXT_CSD
9. Write a Clean User file
10. Write CSC and BL from the official firmware
11. Remove the F64 from the PC and plug off the USB from the phone, and wait for 15 minutes
12. Reconnect again and see if RPMB options are back
13. If they are back proceeding to Read RPMB, and if not, proceed with the steps
14. Configure boot before removing ISP points
15. Flash official firmware or just power the device on and resolder the Points
16. Once connected, read RPMB
17. Reset counter on RPMB
18. Write the provided RPMB
19. Configure boot (Should be boot enabled)
20. Restore backup partitions, especially the security partition
21. Unlock OEM on F64 Option
22. Remove the soldered points
23. Unlock the bootloader using keys
24. Enter the download mode and check the status, and it should appear as below:
FRP: OFF
OEM: OFF (U)
KG: Complete (11)
25. Write the Knox file
26. After finishing cross check, the following to confirm if all is done
BINARY: Custom
FRP: OFF
OEM: OFF (U)
KG: Complete (11)
27. Power on the device and check if IMEI and baseband are okay
28. Done
ALL FILES CAN BE REQUESTED: +265883388974 (WhatsApp)
Best Regards,
Destiny Tech