Flashtool V0.8.6.0. 22 |best| -

Are you trying to or upgrade the software ? Which Windows version are you currently using?

Includes features to "de-bloat" system applications after rooting. Usage Context & Legacy Status Description Flashtool v0.8.6.0. 22

For those who wish to revert their device back to a stock, unrooted state, Flashtool can flash a stock kernel and remove root access. Are you trying to or upgrade the software

Do not use USB 3.0 ports for flashing. Always prefer a direct motherboard USB 2.0 port to avoid connection timeouts. Flashtool v0.8.6.0. 22