| i got the s20 sprint unlocked, done via remote usb service, device was downgraded to sm-g981u tow firmware version first then unlocked and country/carrier id changed from spr to xaa then i flashed oldest sm-g981u1 xaa firmware and ota updated to latest for testing purposes.
tested and working, was able to take ota updates without lock back and also factory reset phone without lock back. |