[GundamX]

Yes, after a year and a half.  Their tech support finally reply with a fix.  Go to https://www.bmaxit.com/en/Download/Laptops/

Download Win 10 20H2 driver or a full OS.  I am downloading it now.

[GundamX]

I was hoping someone figure out a solution by now.  Guess not!

The problem is with Win 10 Build 2004 and 20H2,  I like many of you have not figure out which driver caused the problem.  Luckily, I always backup my OS,  build 1909 and that works perfectly fine.

I am still looking into bios power management issue since with power cable plug in, it runs a bit more stable than running on battery.  Please let me know if this is the same as you with power plug-in.

[GundamX]

Charger needs to support PPS to charge our laptop and QC 4.0 is a safe bet.  I got a 30W charger for $9.99 from Amazon and it works.  It charges from 80% to 90% in 18 minutes.  Good enough.  https://www.amazon.com/gp/product/B07FQKGB9D/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

[Author]

Posts