Is there a terminal command to disable the mobile data connection?

[Linus67]

Is there a simple command to disable mobile data in a script?

nmcli radio wwan off
nmcli connection down

gsettings set com.lomiri.touch.connectivity.cellular data-enabled false
gsettings set com.lomiri.touch.connectivity.cellular data-active false

dbus-send ... com.canonical.Unity.Connectivity.SetCellularDataEnabled boolean:false

/usr/share/ofono/scripts/deactivate-context /ril_0 1 (APN-Kontext entladen)
/usr/share/ofono/scripts/set-gprs-powered /ril_0 false (GPRS-Modul abschalten)
/usr/share/ofono/scripts/set-tech-preference /ril_0 gsm (Drosselung auf 2G/GSM)

Nothing disables mobile data

[gpatel-fr]

@Linus67

try

dbus-send --session --type=method_call --print-reply --dest=com.lomiri.connectivity1 /com/lomiri/connectivity1/Private org.freedesktop.DBus.Properties.Set string:com.lomiri.connectivity1.Private string:
MobileDataEnabled variant:boolean:true

[Linus67]

@gpatel-fr Thank you so much for the crucial tip! With just a few tweaks, it now works on my device. I was also able to successfully determine my location this way.
The one-click “NOKIA 3210 mode” is now complete!
Battery life is 3 days, but I can always be reached by phone or text message.

[Linus67]

@gpatel-fr
Unfortunately, disabling location tracking doesn't work quite as well as it should. It turns off location tracking, but it also disables the toggle switch.

## Turn off location services
sudo -u phablet DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/32011/bus" dbus-send --session --type=method_call --print-reply --dest=com.lomiri.location.Service /com/lomiri/location/Service com.lomiri.location.Service.SetEnabled boolean:false 2>/dev/null
sudo -u phablet DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/32011/bus" dbus-send --session --type=method_call --print-reply --dest=com.ubuntu.location.Service /com/ubuntu/location/Service com.ubuntu.location.Service.SetEnabled boolean:false 2>/dev/null

[gpatel-fr]

@Linus67

try

sudo dbus-send --system --type=method_call --print-reply --dest=com.lomiri.location.Service /com/lomiri/location/Service org.freedesktop.DBus.Properties.Set string:com.lomiri.location.Service string:IsOnline variant:boolean:true

dbus-monitor is your friend for this kind of problem.

sudo dbus-monitor --system >system.txt

or

dbus-monitor --session >session.txt

[Linus67]

@gpatel-fr That´s perfect!
Thank you very much for solving this stubborn problem.

Now I can put the Pixel 3a into ‘Nokia 3210 mode’ with a single click. Calls and text messages work, and the battery lasts at least three days in this mode.

#!/bin/bash
# ====================================================================
# NOKIA 3210 MODUS: CPU throttling + All offline services (Pixel 3a)
# ====================================================================

if [ "$EUID" -ne 0 ]; then
    echo "ERROR: Please run the script using: sudo $0"
    exit 1
fi

echo "Enable Nokia 3210 mode..."

# 1. Force CPU cores into power-saving mode
for governor in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
    if [ -f "$governor" ]; then
        echo "powersave" > "$governor"
    fi
done
echo "[✓] CPU throttling enabled."

# 2. Turn off Wi-Fi
nmcli radio wifi off
echo "[✓] Wi-Fi disabled."

# 3. Turn off location tracking (GPS)
sudo dbus-send --system --type=method_call --print-reply --dest=com.lomiri.location.Service /com/lomiri/location/Service org.freedesktop.DBus.Properties.Set string:com.lomiri.location.Service string:IsOnline variant:boolean:false
echo "[✓] Location tracking disabled."

# 4. Turn off Bluetooth
rfkill block bluetooth
echo "[✓] Bluetooth disabled."

# 5. Turn off mobile data
sudo -u phablet DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/32011/bus" dbus-send --session --type=method_call --print-reply --dest=com.lomiri.connectivity1 /com/lomiri/connectivity1/Private org.freedesktop.DBus.Properties.Set string:com.lomiri.connectivity1.Private string:MobileDataEnabled variant:boolean:false
echo "[✓] Mobile data disabled."

# 6. Greenline-Service stop at user level
XDG_RUNTIME_DIR=/run/user/32011 sudo -u phablet systemctl --user stop greenline.service 2>/dev/null
echo "[✓] greenline.service stopped."

echo "------------------------------------------------"
echo "Success! CPU, wireless modules and GPS are in sleep mode."
sleep 3