@MrT10001 Getting stock Android 11 onto the Lenovo Tab was a real challenge yesterday. Problems: SPflashtool failed due to chip permissions. Attempts using MTK bypass tools also failed How it filaly worked (after ~3 houres) Download Lenovo Software Fix Tool (thanks for the tip) Create a Lenovo account (using a disposable email address) Start the recovery workaround (but you can only flash up to Android 10 !!!!) OK, perform a recovery with Android 10 The recovery tool downloads the ROM (A 11) to your PC Before starting the recovery, you must replace the downloaded Android 10 files with the Android 11 files witch you downloaded from the UBports link bevor. Then start the recovery process and the Lenovo Software Fix Tool will flash the tablet with Android 11, which you’ve placed in its nest, just like a cuckoo’s egg. Translated with DeepL.com (free version)

@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

@Linus67 Thanks very much. Will try it out…

@OtaDr Those are some interesting alternatives, too! I’ll have to give them a try (when the weather’s bad).

@Linus67 Freut mich, dass es geklappt hat