aosp12/tools/carrier_settings/bin

To run this tool in Android 10 code base, the python tools need to be prebuilt on Android 11 code base and dropped to this directory. This is to workaround a bug in the older version of protobuf.

How to:

1. From Android 11 code base, build the python tools:

croot
m update_apn
m update_carrier_data

2. Copy the generated binary to this directory:

cp out/host/linux-x86/bin/update_apn <path/to/this/directory>
cp out/host/linux-x86/bin/update_carrier_data <path/to/this/directory>

3. Run the main.sh as usual