Hi,
I have the same problem after upgrading my G7-L01 by putting dload in SDcard.
The MUI update started and finished 100% but the phone become bricked!
It is detected as "RELINK HS-USB QDLoader 9008 (Port16)".
I think that I must flash now with SP Flash Tool or other tool! But I didn't find a ROM for that (with scatter).
Thanks for help!