Reactivation lock / Samsung Account :
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Reactivation lock lets you use your Samsung account to prevent others from activating your device if it’s ever lost or stolen. With Reactivation lock turned on, you will be required to enter your Samsung account credentials prior to performing a factory reset on the device, so your Samsung account login should be something you can easily remember.

This feature is not the same as Device lock, which is the password, PIN, or other method used to unlock your device when it has been turned off or inactive.

FRP Lock (Factory Reset Protection)/ Google Account :
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Android Factory Reset Protection (FRP) is a new feature to protect your device which has been added to several Samsung devices that are running Android OS 5.1 or higher.
This feature allows you to set up your device to prevent other people from using it if it’s been reset to factory settings without your permission. For example, if your device is lost, stolen, flashed, or wiped, only someone with your Google account or screen lock information can perform a factory data reset and use the device.
When a device is factory reset, the device will not be able to be setup without the user entering the Google Account associated with the device (for hard reset) or screen lock information (for reset in Settings menu).
Important! You must set up a Google account in order to utilize the FRP feature. It is highly recommended that you set a secure screen lock on your device.

What Is The Solution … ?
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FRP Lock / Google Account Solution : (READ HERE)
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Reactivation lock / Samsung Account Solution Below Or
(READ HERE)

Let’s me explain my simple method For Samsung account, You need to find a track for access to Samsung Apps or browser . You can get the track to help option Or keyboard setting (It’s you can open from keyboard) ETC Other Way. After get the track you need try a comment to Samsung Apps store site ( Down the any apps ) and u will see login tab. Just login and do a comments after that come back to main menu and login with that id Which you used last time for the commends .In case it’s unable to login just Hard Reset Your phone and once again try. All the android are same But for Samsung u need to commends to Samsung Apps. Simple it

What Does I mean by Track ?
Example : SAMSUNG KEYBORD SETTING – PREDICTIVE TEXT Its a track to access Browser 😛

For Browser : After get browser entry the link ( Samsung ) and login other all are same

Code:
http://www.samsung.com/us/support/account/

The Track Depend on Phone and version all are not same . You need find by your self. Don’t asked for it

I have tested to many Samsung mobile Even Lollipop I used this method since Starting this problem

Its Will help you if you findout the Track by your self Otherwise Sorry

Maybe its old history for all Of you . But I shared for the new guy

[Big News] Bypass Samsung Account / Reactivation Lock (No-Otg) Android 5.1.1

Br
AzimBahar/ParvezAhmed

Collected : Gsm Forum 

https://i0.wp.com/droid-developers.com/wp-content/uploads/2016/05/Most-common-problems-of-S7-edge-and-HOW-TO-FIX-IT.jpg?fit=1024%2C683https://i0.wp.com/droid-developers.com/wp-content/uploads/2016/05/Most-common-problems-of-S7-edge-and-HOW-TO-FIX-IT.jpg?resize=150%2C150Fahim MahmudAndroidHelp & TroubleshootingHow ToSoftware FixHow To UnlockReactivation lock / Samsung Account : --------------------------------------------------- Reactivation lock lets you use your Samsung account to prevent others from activating your device if it's ever lost or stolen. With Reactivation lock turned on, you will be required to enter your Samsung account credentials prior to performing a factory reset on the...Android Help,Troubleshooting  & Stock Rom