SD Card insertion depth

[nristen]

I always just push it in until it bottoms in the socket...  (and straight)

  I opened one of my phones and compared it to your photo,  yep,  that is how it looks.

I have never had a problem with the socket,  ---->  I have swapped sd cards hundreds of times since the old Brave Heart days.

Thank you everyone for the responses.  I was concerned that I was either pushing the card in too far or had damaged the slot somehow.  As it turns out, I took the suggestion in another thread to try using Etcher to write the image to the sd card which indicated a verification problem after the write was done.

I switched to another SD card which worked beautifully... I was able to boot successfully into Mobian after holding the power button down for 5 seconds.