Samsung SM-G550FY CAN’T UNLOCK FRP

Welcome to Octoplus/Octopus Box Samsung software version 2.1.9
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Platform: Samsung Android
Selected port: COM58
Selected model: SM-G550FY
To put SM-G550FY into Download Mode, You have to perform the
following steps:
1. Reconnect the battery.
2. Press and hold "Volume-" + "Home" + "Power ON" keys.
3. When phone turns on, press "Volume+" key.
Searching for a phone. Please wait…
Phone found.
Initializing..
Resetting FRP lock..