Samsung Galaxy SII Downgrade firmware ICS to Gingerbread

Downgrade the firmware in Samsung Galaxy SII can be so frustating, the main problem is an error messege “the application update software (process xxxxxxxx) has stopped unexpectedly”. That happen because not all ICS file are wipe when flashing or some left ICS files meet the gingerbread files.


  • Download and extract Gingerbread Firmware (2.3.x)
  • Download and install ODIN in windows

Downgrade Galaxy SII firmware from ICS to Gingerbread

  1. Go to Menu > Setting > Application > Development
  2. Check USB Debugging
  3. Run ODIN
  4. Connect Galaxy SII to PC/Laptop
  5. Wait until ODIN Detect the device
  6. Check Re-Partition
  7. Check Auto Reboot
  8. Check F.Reset Time
  9. PIT select u1_02_20110310_emmc_EXT4.pit
  10. PDA Select file CODE_ …….tar.md5
  11. PHONE select file MODEM_……tar.md5
  12. CSC Select GT-I9100_…..tar.md5
  13. Click Start, and wait.
  14. When ODIN give a messege PASS (green), mean flashing is complete
  15. Reboot Samsung Galaxy SII
  16. Done, the firmware is downgrade to Gingerbread (again)


  • PIT file u1_02_20110310_emmc_EXT4.pit can find from ODIN 1.85
  • In PDA, PHONE and CSC just find similiar file, because every firmware have their own file name.
  • This Method can also fix bootloop or flashing ROM stuck

Do With Your Own Risk

Download Support File

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