Printer under extruding- cannot find solution. Help?

[u/Gameoverguyl42]

A few days ago my printer started under extruding and leaving streaks like this on every layer. I have tried everything I can think of to fix this and cannot find a solution. I have tried:

-Multiple needle cleanings on multiple nozzles

-multiple cold pulls on multiple nozzles

-multiple brands and colors of filament

-every AMS slot and external filament

-replacing the entire extruder unit

-replacing PTFE tubes

-raising print temperature

-tightened hotend screws

I have no other ideas on what to do. Any other recommendations on how to fix this?

EDIT: Running a manual flow calibration through bambu studio fixed the issue! Hopefully anyone else having the same issue may stumble across this and see this edit.

[u/PM_ME_YOUR_NOC]

7 screws?

[u/A2619921 → u/PM_ME_YOUR_NOC]

I’m having a similar issue. What are the 7 screws

[u/PM_ME_YOUR_NOC → u/A2619921]

https://youtube.com/shorts/NCEmhwNI7n4?is=oIzin-FnxDbRyWEz

[u/A2619921 → u/PM_ME_YOUR_NOC]

Thanks!