SW REV CHECK FAIL DEVICE 2 BINARY 1 In Samsung G925 Android 5.1.1

Today I was flashing my Samsung S6 from Android 5.0.2 to Android 5.1.1. So I downloaded tar.md5 file from Samsung fired up Odin and started flashing and out of no where Flash failed!. Then when I tried to flash Android 5.0.1 again I started getting this error

It shows this error on device screen

SW REV CHECK FAIL DEVICE 2 BINARY 1

 <ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> G925FXXU1AOCV_G925FVIR1AOCN_G925FXXU1AOCW_HOME.tar .md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin engine v(ID:3.1005)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> SingleDownload.
<ID:0/003> sboot.bin
<ID:0/003> NAND Write Start!!
<ID:0/003> FAIL!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

Reason for this error is during the previous flash it upgraded the bootloader to 5.11 and now it is refusing to go back to an older version. You cannot flash 5.0.1 bootloader again. You have to stay with Android 5.11

Then I tried Samsung Smart Switch and it managed to recover the phone from Soft brick and complete Android 5.1.1 installation and it it boots file.

As a another solution, You can

1. Download the tar.md5 file.
2. Rename the file back to tar and extract
3. Delete  hidden.img
4. Download this toolkit http://forum.xda-developers.com/galaxy-s6-edge/orig-development/toolkit-skipsoft-android-toolkit-galaxy-t3101195
5. Make your own firmware
6. Flash


Tip: https://www.reddit.com/r/GalaxyS6/comments/35zshn/howto_fix_a_failed_odin_flash_softbrick_hiddenimg/