I can't find the MSM tool for the U.S. variant, so I'm trying to workaround by downloading the U.S. variant image. I have the global one, and it's not missing the image, but it can't flash to U.S.
MSM tool for the U.S. variant IS the global one, which is located here.
Hmm, is MSM Tool running as admin? Have you tried a different cable? (OEM Cable preferred).
It's running as admin, and I know I have the Global variant, and I tried using the included cable with the same issue. I did actually get it from where you linked it, so I'm not quite sure. I'm reextracting, hold on...Hmm, is MSM Tool running as admin? Have you tried a different cable? (OEM Cable preferred).
Others have mentioned they thought they had the U.S. model, or Global when in reality they had the T-Mobile one, you sure it's the factory unlocked model sold directly by OnePlus? (NON T-Mobile?)
If it keeps giving you the same error, try this MSM tool, might work, extract MSM into its own folder
Try using this one, and if that one doesn't work, try this other one.
It's detected, but it's stuck in EDL mode and it won't let me get it out, regardless of power combo.
Hmmm, press and hold the power off button until it shuts down completely, then press and hold the volume up + down while you press both buttons plug it in and try MSM tool again, for target select O2.