[Galaxy Tab 4 Q&A, Help & Troubleshooting] shawneendn:
Howdy all!

I'm a long time lurker and user of helpful tips and tricks, advice, and knowledge on this forum. So thank you to all of you for that! I have been using an Android for several years now and have been able to find the answers to any of my questions up until now! So I've now become a member of this fine establishment and hopefully you guys can help me with this issue!

Typically my issues seem to be common amongst fellow Android users, but this one I was only able to find ONE thread that had a similar issue. However, it was with a different device, so I didn't want to try and follow it for my device! That thread is here:

http://xdaforums.com/galaxy-tab-s/general/factory-data-reset-hard-reset-problem-t2926702

So, as the title of this thread states, I am having a problem doing a Hard Reset on my recently purchased SM-T337V Samsung Galaxy Tab 4 8.0. I bought this from ebay with the description that the password/PIN was unknown and it couldn't be reset. So, naively I figured they just didn't know how to do a factory reset and I bought the tablet. I received it today and that's when the troubles began.

I will say this before I go any further, I am not a total newb at this stuff. I have been using Android for years and have successfully rooted a few of my devices and installed custom ROMs, but that's about it. I really only know and understand this stuff just enough to get in trouble, so if I leave out any pertinent information, just let me know. I will try and be as thorough as possible.

I received the tablet today, booted it up and it boots right into a PIN lockscreen. Obviously I don't know the PIN and so that leaves me at a dead end. Next step was to try and do a Factory Reset. Here are the following steps that I took that lead me here:

1. Turn off the tablet

2. Boot into Recovery by holding HOME+VOL UP+POWER

3. When the tablet boots into Recovery, this is displayed:

Android system recovery <3e>

KOT49H.T337VVRU1ANE1

​

...along with the typical options for recovery.

4. Volume Down to "wipe data/factory reset"

5. Press POWER to select.

6. This is then displayed at the bottom of the screen:

# MANUAL MODE #

-- Appling Multi-CSC...

Applied the CSC-code : VZW

Successfully applied multi-CSC

-- Warning ...

MDM does not allow factoryReset.

Phone will REBOOT automatically.

​

7. Phone then reboots automatically back to the PIN lock screen.

Now, from what I have been able to learn by Googling this warning, it seems as though this tablet was a Live Demo version or something like that? I'm guessing one they had in the store for people to try out or something along those lines?

What do I need to do to get this tablet back up and running like a stock factory brand new tablet? I was thinking that I just needed to install the Stock ROM via Odin and then I'd be able to have the tablet working, but I read somewhere that doesn't remove the MDM restrictions? I don't know if that's the right way of thinking or if I need to do something else? In the link to the thread above that I found with a similar issue, it seems as though they just installed the Stock Firmware via Odin and all was good to go?

I have also gathered from reading about this that the ROM that is on this tablet right now (KOT49H.T337VVRU1ANE1) is based off 4.4.2 and is also able to be rooted. Which is a good thing that it is not updated to the 4.4.4, which apparently cannot be rooted. Obviously, that will need to come AFTER I can get this thing reset.

Oh, I forgot to mention that I can also boot it into Download mode by holding HOME+VOL DOWN+POWER.

Hopefully I have supplied you guys with enough information to help me out. Like I said, if I've left something out, please let me know and I'll give you whatever information you need!

Rawk!

-NDN