У вашего броузера проблема в совместимости с HTML5
Today TK Shares with us the process of Unlocking the bootloader and installing TWRP on our Oneplus 5. We also get the process of getting Magisk Root installation and setup. This method gets you Systemless root access and the ability to use your favorite apps even if they don't like root access.
Enjoy!
Magisk files:
https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445
TWRP download :
https://twrp.me/devices/oneplus5.html
USB Drivers: https://developer.android.com/studio/run/oem-usb.html
ADB: https://www.xda-developers.com/google-releases-separate-adb-and-fastboot-binary-downloads/
Get XDA Feed for Any Phone: http://bit.ly/2tsK4gE
Check out TK's YouTube Channel:
http://www.youtube.com/tkbay
TK's Twitter: https://twitter.com/tkdsl8655
TK's Google+: https://plus.google.com/u/1/+TKBay
Other XDA Links:
XDA Portal: http://www.xda-developers.com
XDA Forums: http://forum.xda-developers.com
XDA TV: http://www.xda.tv