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#!/bin/sh
# SPDX-License-Identifier: CC0-1.0
# 2021 Aleksander Morgado <aleksander@aleksander.es>
# 2022 Leah Oswald <mail@leahoswald.de>
# 2025 Jongmin Kim <jmkim@debian.org>
#
# Quectel MBIM FCC unlock mechanism
# EM05-G, 2c7c:030a
# EM05-G (GR), 2c7c:0313
# EM05-G (RS), 2c7c:0314
# RM520N, 2c7c:0801
# EM120, 1eac:1001
# RM520N (HP shipped), 1eac:1004
# RM520N (Lenovo shipped), 1eac:1007
#
# require program name and at least 2 arguments
[ $# -lt 2 ] && exit 1
# first argument is DBus path, not needed here
shift
# second and next arguments are control port names
for PORT in "$@"; do
# match port type in Linux 5.14 and newer
grep -q MBIM "/sys/class/wwan/$PORT/type" 2>/dev/null ||
# match port name in Linux 5.13
echo "$PORT" | grep -qi MBIM ||
echo "$PORT" | grep -q cdc-wdm && {
MBIM_PORT="$PORT"
break
}
done
# fail if no MBIM port exposed
[ -n "$MBIM_PORT" ] || exit 2
# run mbimcli operation
mbimcli --device-open-proxy --device="/dev/$MBIM_PORT" --quectel-set-radio-state=on
exit $?
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