Ah okay. Yeah, then reflowing is what I'd try next too if I were you. Also check the aforementioned caps up while you're at it.
Note that the peripheral components around the chip are really tiny, you might want to use a fair bit less airflow...
My release day Switch's wifi chip went bad with BT still working much like yours. It would hang indefinitely on the Nintendo/Atmosphere boot logo.
The trick was to just let it sit there until the batteries drained completely and then recharge it...