Is there a IOS 10.2.1 Untethered jailbreak?

[lllKenlll 2]

Wonder is there any Untethered jailbreak for IOS10.2.1?....Currently using Semi-Untethered by Saigon. The thing i frustrated is that everytimes it will unjailbreak by itself when my phone get rebooted and took me a hours to jailbreak it again.

[Cz1993 154061]

just dont let him reboot..

[lllKenlll 2]

Yes. But it will rebooted by itself:(

or is there any other cydia tweak like prevent reboot feature?