Can't sign out of samsung account or hard reset phone just re boots

[sam1993]

Hi any help would be appreciated I recently bought a second hand s21 ultra and the previous owner is log in to the Samsung account I lost number of person so can't contact them but I can't sign in as the email to verify is there's I tried doing a hard reset with the up volume and power button but the phone just re boots back on and does not go into recovery mode 

[Piper123]

Are you trying to reset from the main settings menu / factory data reset?

If you enter the Recovery Mode you can also perform a reset from there.

There are videos on YouTube for this.

[JAMES4578]

To enter Recovery Mode now you need to:

1. Turn off the device.
2. Connect To Computer or plug in USB-C Headphones , Press and hold the Volume Up key and then press and hold the Power key
3. When the Android logo displays, release all three keys.
4. Wait until the Android system recovery menu options appear.

There are a Number of options such as wipe Data/Factory Reset,Wipe cache partition, Reboot System now and Repair Apps.

[sam1993]

I'll give that a try now thanks

[sam1993]

Tried it didn't work just turned on

[sam1993]

I can't get into recovery mode for some reason it just keeps turning on

[Lord_Shiva]

Press the volume button and press the switch on the button together. This should bring to the factory reset screen. From here, choose what you can do

[Obsydian]

I think the OP is stuck on Reactivation Lock.

Simple answer you need the account password to unlink that account.

[Bogmore]

And the none simple answer?