Root odin FAIL!! when trying to downgrade

[Bringbackkitkat]

have a replacement S5 running 5.0 (smashed screen phone is successfully rooted), and trying to downgrade it to either 4.4.2 or 4.4.4 results in a FAIL!! from odin and thats the end. I worked with both phones tonight, the cracked screen S5 connected and communicated, loaded up, worked perfect going from 4.4.4 to 4.4.2 (towelrootable). The 5.0 S5 hits some kind of brick wall when attempting to downgrade to either .2 or .4. Any ideas on why this may be?

 

[scary alien]

@Bringbackkitkat, I've moved your thread over here to the SG S5 root area for you since the folks in here should best be able to help you out.

Cheers and best of luck!

 

[Bringbackkitkat]

Thank you. Also, I have tried with both the S5 USB as well as an older android USB. Have tried Odin 3.9 and the newest version. Both result in a fail after hitting "start".

 

[ironass]

If your Galaxy S5 is either the AT&T model, G900A, or the Verizon model, G900V, that is running the latest firmware for either Android 5.0 or 5.1.1, then I am afraid that you can no longer downgrade to Android 4.4.4 or 4.4.2 to root your phone. Both AT&T and Verizon have made their firmwares un-rootable. See #1.6 of 41 Galaxy S5 models - Dummies Guide.

 

[Bringbackkitkat]

well dang! looks like i'm going to try and swap screens then and try to get the phone i want after paying out the nose every month for so long...