Check out these ones…there should be a link to the post where they have been used, and sometimes a diagram of where the antenna is located.
If your phone is not on the list, You can generally work out where your antenna is with some GoogleFu, but I prefer a practical use of the HF xFD you would have been sent with your order
Also, not to suck eggs, but Just confirming, you are trying to read your xSIID perpendicular with the antenna?
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