let’s experiment a bit with iphone orientation on the apex flex… the iphone’s antenna is very picky. start with the case off so we can zero in on a good method. no sticker should be needed to get a read, but it can help.
fyi, if i’ve not mentione this before, this is considered a “danger zone” for flex implants.
Getting a read from this location with your iphone could be difficult… but still worth a try. The one thing to consider with iphones vs android phones is that with android you hold the flat large back surface of the phone to a tag while the iphone tends to work best if you hold just the top edge of the phone to the implant… so it’s basically 90° up on the z-axis from how you’d do it with android. For example;
I would keep trying different orientations and rotations looking for a good coupling. I haven’t done enough with iphones and flex to give you a good guide off the top of my head, but it’s now on my list to make a short video about it like I did above for x-series