I tried almost everything to fix my under extrusion problem with no success?

[KemarRoach]

Since I changed my filament (Same material PLA, different color and manufacturer) i started experiencing massive under extrusion.

In order to check if it's the printer's or material's fault i inserted some of the previous filament and the printer still under extruded.

I tried every solution i could find online. I unclogged the nozzle and when that didn't help i changed it. Still didn't help at all. I tried increasing the flow in my slicer up to 110% but that didn't make any difference. I set the temperature up to 210°C but that didn't solve the problem either.

I don't know what to do anymore. Please if you know a solution to this problem don't hesitate to share it. I'm at my wit's end.

I use the Geeetech A10 printer with a Bowden extuder, feed it with generic 1.75 PLA and slice with Cura 4.4.1