And here it is
Remember the caveat
Arrived a few of days ago, happy with that
As some people may be aware, I carry a T5577 card in my phone case
Seperately, I also made a Range extender and carried that inside my case
But that was too much crap in my phone case, So my idea was to get a 2in1 Card
Identify the location of the chips and antennas
( In my experience, HF Coils tend to run the premiter in a retangular fashion, and LF Circular and central )
Next, Fill a glass vial with acetone, and make a hotglue seal around the neck over the HF chip, flip upside down to soak the plastic in the targetted location.
Place the contraption on a galss platform ( so the acetone doesn’t eat through the surface it is sitting on )
Let soak for a couple of hours
Let soak a couple more
Check the underside for signs of it losing the battle
Peel away the hot glue and peel off the soft melted plastic from the card.
Desolder the chip and replace with a 22pf capicator
Strip wire enamel with soldering iron, and Solder said capicitor to the antenna wire
Fill the void with hot glue
Phone (Samsung S21+)
Reading a full sized DF2 card
Without Extender= 35mm
With Extender = 42mm
Was it worth it? Probably not, But It may help some people if your phone is struggling to read your implant.