REACTIVATION LOCK Won't turn OFF - Galaxy Note 4 Q&A, Help & Troubleshooting

Hi everyone!
I have a Samsung Note 4 (SM-910U) Chile version. Came with Firmware N910UXXU1ANJ4 Chile. Then I changed the FW by N910UXXU1ANJ4 New Zealand (Vodafone). I run the automatic updates until the last FW N910UXXU2COJ2 Android 5.1.1.
I did a factory reset.
Had his Samsung account on it and Reactivation Lock was turned on. We put phone on Wifi and tried to turn off Reactivation Lock. Just loops back to same screen and remains turned on.
Correct Password and Email as we were able to hard reset phone and at the Reactivation Lock screen during setup, it was accepted and we continued through to set up phone.
Still Reactivation Lock won't turn off, just loops back to same screen.
So we decided to delete Samsung account from phone.. Email and Password accepted, Samsung account deleted.
Thought we were good. Nope.
Now Reactivation Lock is on, grayed out and we cannot add back the Samsung account. Press on Add Samsung account and nothing happens.
Also cannot do Factory Reset from within Setting. Just press Reset Device and nothing happens.
Thanks for your help!

enter recovery mode and do the factory reset there..
turn off the phone first then
hold power + volume up + home at the same time

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I've purchased 12 of these Tablets for my company. Out of the box they were android 6.0, as soon as we connected them to WiFi the 7.0 Update option came up so we updated all 12. We then loaded our Comodo MDM enrollment on them. Well Next time they rebooted 9 of them would not come up, they just sit at the samsung screen fading in and out. I went into recovery mode to try factory reset & wipe, I get the message that "mdm does not allow factory reset". So I tried resetting the cache which did nothing as well. So I loaded Odin and booted into odin mode tried to load a stock rom and I get the message that the device is in FRP mode and cannot load a custom image...
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cpubugs said:
I've purchased 12 of these Tablets for my company. Out of the box they were android 6.0, as soon as we connected them to WiFi the 7.0 Update option came up so we updated all 12. We then loaded our Comodo MDM enrollment on them. Well Next time they rebooted 9 of them would not come up, they just sit at the samsung screen fading in and out. I went into recovery mode to try factory reset & wipe, I get the message that "mdm does not allow factory reset". So I tried resetting the cache which did nothing as well. So I loaded Odin and booted into odin mode tried to load a stock rom and I get the message that the device is in FRP mode and cannot load a custom image...
I have ALWAYS had droids and I favor Samsungs normally.... I have always rooted and unrooted every device I've ever had, but these have me stumped... I cannot get into USB debugging mode, I cannot get the things to boot at all. Every tutorial requires debugging mode. Samsung Business support is NO help at all. So I turn to the dark side... HELP!!!
Click to expand...
Click to collapse
Sounds to me like the problem isn't with Google's FRP lock but with the Comodo MDM enrollment. First thing I'd do is contact their tech support. The FRP lock doesn't prevent you from flashing a ROM with Odin. The FRP lock would just ask for the Google login and password on the first reboot. And I have seen other security apps blame the FRP lock for not allowing a ROM to flash via Odin.

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