[Q] Yellow Sprint screen

I have had my S4 new for a week. I rooted it and then made the mistake of looking at an old youtube clip on how to use the native hotspot by modifying with QBKing77. I have read through the posts I can find on here but am having no luck getting my phone back working. I have downloaded the NAE MJA & MK2 Tar files and tried to use ODIN 3.09 to install them on my phone but I keep getting a fail with the following:

<ID:0/007> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> L720VPUEMK2_L720SPTEMK2_L720VPUEMK2_HOME.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/007> Odin v.3 engine (ID:7)..
<ID:0/007> File analysis..
<ID:0/007> SetupConnection..
<ID:0/007> Initialzation..
<ID:0/007> Get PIT for mapping..
<ID:0/007> Firmware update start..
<ID:0/007> SingleDownload.
<ID:0/007> sbl2.mbn
<ID:0/007> NAND Write Start!!
<ID:0/007> FAIL! (Auth)
<ID:0/007>
<ID:0/007> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

All three lead to this error. I have access to both the download and recovery screens and have also tried to put the zip files from each of those on a mini sd card and recover that way. Nothing is working. Am I doing something wrong or does anyone have any ideas for me to try?

Thank you in advance.

cruise350 said:

Well, if you have only had your phone for a week, there is a very good chance that you have the newer L720T model and not the L720 original Sprint S4. It is very important you figure out which model you have before you go about trying to fix it. Remove the battery and look at the model number. If it is the L720T, there is no hotspot mod and you will need to make sure you download the correct stock tar to fix your phone. You will need to go to sammobile.com and register to download tar files. Look for SPH-L720T under firmwares and download the latest one.

If you do have the original L720, than the only stock tar that will install for you is the NAE full stock tar file found here: http://xdaforums.com/showthread.php?t=2663619 . Then re root your phone with cf autoroot and install the NAE odexed hotspot mod using the custom revovery of your choice: http://xdaforums.com/showthread.php?t=2653666 . Make sure you flash the hotspot mod with a custom recovery, if you try to manually replace the files using a file explorer it will fail on NAE.

Again, first thing you need to do is determine which model of the Sprint S4 you have!!

Click to expand...

Click to collapse

I am an idiot. Thank you for pointing me in the right direction. I do have the L720T, went to where you pointed me and I am back up and running.