iPhone 12 Lightning accessories not responding on only iPhone 12 models

[leodavinci]

I have a couple lightning accessories, including a Rocketek lightning micro SD card reader, that work on all models of iPad and iPhone my family owns (many devices), but does not work on my iPhone 12 unless the charge level is below approximately 70%. I verified at Best Buy that the other models of iPhone act the same. An iPhone 12 and iPhone 12 mini fully charged did not see my test device, but an iPhone 12 Pro and Pro Max with less than 10% charge level did. It oddly seems to be related to charge level. Apple accessories, such as the Lightning HDMI adaptor, are not affected, and work at all charge levels. Has anyone else seen this or know about this issue with the new iPhone 12's?

 

[aldouse]

i'm having the same issues on my iphone 12. i'll try to see if it works below 70% charge.. but otherwise, a lot of my lightning devices does not recognize.

 

[aldouse]

how weird.. under 70% charge, the card reader works. but once it crosses 70% charge, it doesn't work anymore...

 

[leodavinci]

The change occurs equal to and below 65% battery life, not 70 as reported above.