balong-cell-lock.sh

#!/bin/sh
BAND=${1:?Specify BAND (eg: 1, 3, 5, 7, 28) or 0 to unlock}

if [ "$BAND" != "0" ]; then
    FREQ=${2:?Specify DL Frequency x 10 (eg: 18484 for 1848.4 MHz)}
    PCI=${3:?Specify tower PCI}
else
    echo "./balong-nvtool -m 53810:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00"
    exit
fi

case $BAND in
    ''|*[!0-9]*) echo "BAND is not numeric" && exit 1 ;;
    *) ;;
esac

case $FREQ in
    ''|*[!0-9]*) echo "FREQ is not numeric" && exit 1 ;;
    *) ;;
esac

case $PCI in
    ''|*[!0-9]*) echo "PCI is not numeric" && exit 1 ;;
    *) ;;
esac

[ $BAND -gt 255 ] && echo "BAND must fit in a single byte" && exit 1;
[ $FREQ -gt 65535 ] && echo "FREQ must fit in 2 bytes" && exit 1;
[ $PCI -gt 65535 ] && echo "PCI must fit in 2 bytes" && exit 1;


dec2hex() {
    PRINTF="printf"
    if [ -f "/system/bin/busybox" ]; then PRINTF="busybox printf"; fi
    $PRINTF "%08X\n" $1
}

CUT="cut"
if [ -f "/system/bin/busybox" ]; then CUT="busybox cut"; fi;

BANDHEX=$(dec2hex $BAND)
FREQHEX=$(dec2hex $FREQ)
PCIHEX=$(dec2hex $PCI)

BANDHEX=$(echo $BANDHEX | $CUT -c7-8)
FREQHEX1=$(echo $FREQHEX | $CUT -c7-8)
FREQHEX2=$(echo $FREQHEX | $CUT -c5-6)
PCIHEX1=$(echo $PCIHEX | $CUT -c7-8)
PCIHEX2=$(echo $PCIHEX | $CUT -c5-6)

echo "./balong-nvtool -m 53810:03:00:00:00:$BANDHEX:01:$BANDHEX:01:$PCIHEX1:$PCIHEX2:$FREQHEX1:$FREQHEX2:00:00:00:00"