1 Root with This
https://mega.co.nz/#!twgCGZZD!tnqAAx...Ht0dXP_yEPqJSE
2 Enabled Developer and check OEM unlocking
3 *#0808# select RNDIS+ ACM +DM +ADB
4 Unlock 21.6
5 Done
:: Doctorchip Paraguay ::
second post of this, tested and working, please stop deleting my post