GSM-Forum - R-SIM 10 working with Telcel not working with AT&T and T-Mobile USA iPhone 6 and 6 +

Hello, I am experiencing a problem that seems is plaguing a lot of users on here. And it's an issue I had while using the X-SIM.

Both X-SIM and R-SIM 10 unlock my iPhone 6 and iPhone 6 + for Telcel (Mexico) only. It will not work with an AT&T sim, nor a T-Mobile USA sim. I am getting the No Service error or "Searching" for ever error. I was told that the new R-SIM 10 was going to work with all sim cards, unlike the X-SIM. Yet I am getting the same results as the X-SIM.

Issues with the Telcel sim I am finding is that "my number" shows "unknown," so iMessanger and Facetime hasn't been turned on using the phone number. On top of that LTE and 4G isn't working either. The only way I can use Telcel is by using the "Ios6.0-8.X(2G/3G SIM Card)" method of unlocking. The 4G USA "For 4G SIM CARD(TMSI Mode US)" has failed for me using the Telcel and of course USA sim cards.

With the "For 4G SIM CARD(TMSI Mode US)" way unlocking I get stuck in activation mode. Sometimes the carrier strength shows, but its meaningless since I can't get pass the activation. Even if I pull the sim out, get back to the home screen and pop the sim back in, I am stuck back in activation loop and get the "not supported sim" error.

I am kinda bummed because I bought the R-SIM 10 expecting that it was going to support the newest sims, yet i'm still stuck with them not working. I did some researched and read that maybe there is a "patch" that will solve this issue. But I don't want to spend anymore money because I was told the R-SIM 10 would do the trick.

Anyone have any advice for me?