Now that you mention it, I did a test sending from a Testnet4 faucet to one of the wallets created a while ago and it is waiting for confirmation. But from that wallet I have tried several times to send funds that I have in it to another of the wallets created for testing and always the same result "NETWORK REJECTED"

So if it is already working on Testnet4, it is a great blessing for me, because I love this application, because as I already said IF SPARROW IS THE SWISS ARMY KNIFE FOR DESKTOP, NUNCHUK IS THE ONE FOR MOBILE.

Also, my ignorance about the fact that it was already working on Testnet4, allowed me to learn and test something that I had been trying for some time.