It even becomes frustrating when you dont know the account that was previously synced with the device.
The method below will show you how to easily remove/bypass this factory reset protection on MTK devices.
All you need for this process is just Miracle Box and MTK 65xx drivers
Download Miracle Box v2.27 from here
Download and install MTK 65xx drivers from here
You can watch the video below on how to do this
Launch Miracle Box
Under MTK tab click Unlock/Fix
Click Clear Settings/Frp
Click Start button
When the backup flash pop up appears, Select NO
Connect the device to PC
Miracle Box will detect the device and start the process
When you see Done!, the process is complete
Disconnect and reboot phone
First boot after this process is a bit longer than normal