Hey @Tibu
I saw you are offering interesting new Satochip blank card in form of SIM card for making our own hardware wallet with Satochip code.
If anything happening if this SIM card is entered in old smartphone, or we still need to use card readers and laptops for this card?
And is there any other difference compared with other Satochip products?

I think this is very cool idea 


https://satochip.io/product/satochip-diy-and-developers-card-sim/