I highly recommend taking some time and reviewing the great reviews members are doing on various cameras.
While I bought the black version of that Amcrest camera ( got a great deal on it ), at $115 ( current price ) I believe you can find some significantly better models right now for not much more from Andy ( empiretecandy here on the forum ).
I had a reolink wireless for about 2 days and sent it back. No matter what, it wouldn't stay connected but even worse was their tech support. Then I had an Amcrest wireless and it wouldnt stay connected either but at least their tech support was good enough. Eventually returned it as well and gave in to running ethernet. As for Amcrest, I have 3 of the them running now (2 domes and an inside PTZ) and they're ok but I have seen better cheaper imho. The amcrest were the first I bought. Also I just updated the FW on the PTZ today and found that I can't remove the Amcrest watermark like I once could. Amcrest logo can no longer be removed? That just seems wrong to me. I plan on contacting tech support tomorrow and double checking. Overall I have to say I'm happier so far w/ the LaView cams I just got than my Amcrests. Time will tell though.
Update - just spoke w/ Amcrest tech support and they're working on another update that will allow this company watermark to be removed again. I told them I was afraid that they were going to do this to all cameras and they assured me that they were not and this happening was by accident.
I have not seen ( iirc ) members sharing a how to on that yet. Suspect while some of the cameras are related to some Dahua OEM international ones, you'd need to confirm the hardware actually is the same or similar enough so that you can do that successfully.
IF you do find notes on updating Amcrest models with Dahua OEM firmware, please do come back and share that here.