ac06052b97
Tested w/ Lenovo firmware T99W175.F0.1.0.0.9.DT.003.055 (old unlock method) and T99W175.F0.1.0.0.9.DT.003.079 (new unlock method)
100 lines
2.6 KiB
Bash
100 lines
2.6 KiB
Bash
#!/bin/sh
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# SPDX-License-Identifier: CC0-1.0
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# 2021 Aleksander Morgado <aleksander@aleksander.es>
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# 2022 Thilo-Alexander Ginkel <thilo@ginkel.com>
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# 2022 Bjørn Mork <bjorn@mork.no>
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#
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# Foxconn SDX55 (Lenovo T99W175) FCC unlock operation
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#
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# The script will first try to unlock the WWAN modem using the new (hash-based)
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# v2 method and fall back to the old (v1) method if that fails
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#
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# require program name and at least 2 arguments
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[ $# -lt 2 ] && exit 1
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# first argument is DBus path, not needed here
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shift
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# second and next arguments are control port names
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for PORT in "$@"; do
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# match port type in Linux 5.14 and newer
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grep -q MBIM "/sys/class/wwan/$PORT/type" 2>/dev/null && {
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MBIM_PORT=$PORT
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break
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}
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# match port name in Linux 5.13
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echo "$PORT" | grep -q MBIM && {
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MBIM_PORT=$PORT
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break
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}
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done
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# fail if no MBIM port exposed
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[ -n "$MBIM_PORT" ] || exit 2
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log_v2_failure() {
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echo "$1. Falling back to old unlock method" >&2
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}
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FIRMWARE_VERSION=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
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--dms-foxconn-get-firmware-version=firmware-mcfg \
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| grep "Version:" \
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| grep -o "'.*'" \
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| sed "s/'//g" \
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| sed -e 's/\.[^.]*\.[^.]*$//')
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if [ -n "${FIRMWARE_VERSION}" ]; then
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FIRMWARE_APPS_VERSION=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
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--dms-foxconn-get-firmware-version=apps \
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| grep "Version:" \
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| grep -o "'.*'" \
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| sed "s/'//g")
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if [ -n "${FIRMWARE_APPS_VERSION}" ]; then
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IMEI=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" --dms-get-ids \
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| grep "IMEI:" \
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| grep -o "'.*'" \
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| sed "s/'//g")
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if [ -n "${IMEI}" ]; then
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SALT="salt" # use a static salt for now
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MAGIC="foxc"
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HASH="${SALT}$(printf "%s%s%s%s%s" "${FIRMWARE_VERSION}" \
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"${FIRMWARE_APPS_VERSION}" "${IMEI}" "${SALT}" "${MAGIC}" \
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| md5sum \
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| head -c 32)"
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else
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log_v2_failure "Could not determine SDX55 IMEI"
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fi
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else
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log_v2_failure "Could not determine SDX55 firmware apps version"
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fi
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else
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log_v2_failure "Could not determine SDX55 firmware version"
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fi
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UNLOCK_RESULT=1
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if [ -n "${HASH}" ]; then
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qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
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--dms-foxconn-set-fcc-authentication-v2="${HASH},48"
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UNLOCK_RESULT=$?
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if [ $UNLOCK_RESULT -ne 0 ]; then
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log_v2_failure "SDX55 FCC unlock v2 failed"
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fi
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fi
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if [ $UNLOCK_RESULT -ne 0 ]; then
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qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
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--dms-foxconn-set-fcc-authentication=0
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UNLOCK_RESULT=$?
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if [ $UNLOCK_RESULT -ne 0 ]; then
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echo "SDX55 FCC unlock v1 failed" >&2
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fi
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fi
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exit $UNLOCK_RESULT
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