Re-pairing factory installed backup camera on 2019 tab 400 BDL

ecstatic

I have read there is a button I can press behind the fabric piece that goes along the bed under the stargazer window to repair the factory installed backup camera.  I felt around back there and was only able to find some cables, one of them wound up, but no buttons or anything like that.  Do I need to take off the wood panels under the bed near the battery to reach it??  Should it be easily found right under the window?