SM-G531F FPR done

In order to remove FPR with octopus for this model u have to flash combination file 1st , then remove fpr with octopus .. u will get error at end for samsung account lock but dont bother with this .. after that just reflash phone with any firmware and fpr is gone

Welcome to Octoplus/Octopus Box Samsung software version 2.4.3
To connect SM-J500FN phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Press Home button.
10. Press "Read Info" in software.
Platform: Samsung Android
Selected port: COM11
Selected model: SM-G531F
To put SM-G531F into Download Mode, You have to perform the
following steps:
1. Reconnect the battery.
2. Press and hold "Volume-" +"Power"+”Home" keys.
Searching for a phone. Please wait…
Phone found.
Resetting FRP lock..success
Resetting EE lock..success
Resetting Samsung Account lock..not supported
Operation was failed!
Performed by 2.4.3 Software version.