h1. Nexus 7 (2012) |_. Variant |_. Replicant compatible versions |_. SoC |_. Bootloader |_. Modem link |_. Modem protocol |_. RAM | | Nexus 7 (2012) WiFi (Grouper) | Not supported yet | Nvidia Tegra 3 T30L | Signed? |\2. No modem | 1G | | Nexus 7 (2012) GSM (Tilapia) | Not supported yet | Nvidia Tegra 3 T30L | Signed? | Isolated (HSIC) | AT[1] | 1G | fn1. It uses a nonfree libril (libxgold-ril.so) which doesn't have strings of samsung-ipc commands and instead it has strings like "+CRING:" which are typically used to parse unsolicited AT commands. So it should use AT commands.