Allow me to make you reconsider.
Starting with a Simple test.
Download TagInfo and scan your current card And share the results
I’ll up your user level so you can share pictures and have more replies.
IF your cars cant be read by your phone, That would PROBABLY be good news.
Scan with your Flipper
‘RFID’
And share a screenshot of the results.
You could just use your flipper for both…
EDIT
User leveled up.
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