Help Flashing back to stock.

[Charmeleomander]

I'm trying to get back to stock and odin keeps throwing an error.

<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/004> Odin engine v(ID:3.1205)..
<ID:0/004> File analysis..
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Firmware update start..
<ID:0/004> SingleDownload.
<ID:0/004> boot.img
<ID:0/004> sboot.bin
<ID:0/004> FAIL!
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/004> Removed!!

After the error, my phone reads "SW REV. CHECK FAIL. DEVICE: 3, BINARY: 2" and after a good search, someone said it was because I was installing a custom rom with odin, but I'm flashing over the stock one.

 

[amarshah]

Flash latest rom

 

[Charmeleomander]

Flash latest rom

I'm trying to do that, that's the error I get.

 

[amarshah]

I'm trying to do that, that's the error I get.

Ohh ...than flash 4 firmware file together here it is
https://forum.xda-developers.com/galaxy-j7/development/j700h-marshmallow-update-method-rom-t3399433

 

[rohithk176833]

My imei is null after flashing Rom

And now my SIM is not detected in this mobile

I tried flashing stock Rom via odin nothing works throws errors as 'sw rev secunity check fail device 3 binary 2' and ' security check fail bootloader'
though I flash latest Rom!

If I flash custom Rom still SIM is not recognised

Help me how to fix?