Try this - the rest seemed to send it back
Re: Lenovo Yoga 8 Tablet stuck on boot screen
Several posts on this forum had the problem with it stuck on the Lenovo splash screen and Fumangord1 on here mentioned
"If you hold the volume buttons in and hold the power switch it should give you the boot options. Select the recovery mode with the up volume button then press the down volume to ok it. Mine comes upo with the android icon and NO COMMAND."
Well, I tried this and got the same BUT went a bit further with it, just by pressing buttons in a random fashion ...
When the Android robot icon comes up with NO COMMAND, I think I then pressed the ON button and another Boot drop down menu popped up.
I think I tried this next bit twice,but can't remember which one worked, but just have a play with the new options to see which one works for you !?
First I think I selected the top one which is something like REBOOT and I then the second time I tried the bottom option which is something like WIPE CACHE and hey presto .. . it now works with every app and setting intact !
I'm only going by what I remember doing - it might not be quite right, but at least there does seem a way round the issue !
God know's why Lenovo themselves don't reply to these posts and tell us how to fix their bloomin' machines !!??
Good luck everyone !