Yeah mine was soldered pretty good, it works incredibly well for me. After getting the driver installed it just worked in my experience.So. Apart from the bad solder that did not allow you to use it well. (Let's hope it is not a recurring issue). How well does it perform?
I have autorcm now so I shutdown fully from it a few times to test the device and I just plug it in, power it on then press power on my switch and boom, boots reiNX.