B3UZ

#!/sbin/sh

OUTFD=$2
ZIP=$3
debugfile=/sdcard/buz.log
buzver="1.0"
datever="2018-02-25"
pdaver="DRAA"
blver="DRAA"
cpver="DRA9"
dateSecurLvl="2018-01-01"

ui_print(){
    echo -n -e "ui_print $1\n" >> /proc/self/fd/$OUTFD
    echo -n -e "ui_print\n" >> /proc/self/fd/$OUTFD
}

debug(){
  t1=$(date +"%H:%M:%S")
  t2=$(awk 'NR==3 {print $3}' /proc/timer_list | cut -c1-5)
  echo "$t1.$t2: $1" >> $debugfile
}

getinfo(){
  BPROP=/system/build.prop
  TXT=$1
  if [ -f $BPROP ]; then
    tmp=$(cat $BPROP | grep -i $TXT | cut -d= -f2)
    [ -z "$tmp" ] && echo "key not found" || echo $tmp
  else
    echo "build.prop not found"
  fi
}

ui_print " "
ui_print "  B3UZ: BaseBand & Booloader Updater Zip"
ui_print "   version $buzver"
ui_print "   $datever"
ui_print "   (c) hypo59 @ mmgmobile.com"
ui_print " "

# remove log file if it already exists
[ -f $debugfile ] && rm -f $debugfile
debug "date: $(date +%Y-%m-%d)"
debug "B3UZ version: $buzver"
debug "PDA-BL-CP version: $pdaver-$blver-$cpver"

# mount partitions
debug "mount /system"
mount /system
debug "rc=$?"
debug "mount /data"
mount /data
debug "rc=$?"

# display informations
ui_print " # support ONLY for SM-G930F (flat S7)"
model=$(getinfo ro.product.model)
ui_print " # phone model detected: $model"
debug "ro.product.model = $model"
if [ ! "$model" = "SM-G930F" ]; then
  ui_print " # bad detection: exit"
  ui_print " "
  exit
fi

ui_print " # source firmware version: $pdaver"
ui_print " # bootloader version to flash: $blver"
ui_print " # baseband version to flash: $cpver"
ui_print " # security patch level date: $dateSecurLvl"

# extract stuff
ui_print " # extract files for update"
unzip -o "$ZIP" firmware/* -d /tmp
unziprc=$?
debug "extract rc=$unziprc"
if [ ! "$unziprc" = "0" ]; then
  ui_print " # error while extracting: exit"
  ui_print " # logfile saved to: $debugfile"
  exit
fi

# apply update
ui_print " # apply $cpver baseband update"
dd if=/tmp/firmware/modem_debug.bin of=/dev/block/platform/155a0000.ufs/by-name/CP_DEBUG
sleep 2
cpdebugrc=$?
debug "CP_DEBUG rc = $cpdebugrc"
if [ ! "$cpdebugrc" = "0" ]; then
  ui_print " # error while applying update: exit"
  ui_print " # logfile saved to: $debugfile"
  ui_print " "
  exit
fi
dd if=/tmp/firmware/modem.bin of=/dev/block/platform/155a0000.ufs/by-name/RADIO
sleep 2
radiorc=$?
debug "RADIO rc = $radiorc"
if [ ! "$radiorc" = "0" ]; then
  ui_print " # error while applying update: exit"
  ui_print " # logfile saved to: $debugfile"
  ui_print " "
  exit
fi
ui_print " # successfully done !"

ui_print " # apply $blver bootloader update"
dd if=/tmp/firmware/sboot.bin of=/dev/block/platform/155a0000.ufs/by-name/BOTA0
sleep 2
botazerorc=$?
debug "BOTA0 rc = $botazerorc"
if [ ! "$botazerorc" = "0" ]; then
  ui_print " # error while applying update: exit"
  ui_print " # logfile saved to: $debugfile"
  ui_print " "
  exit
fi
dd if=/tmp/firmware/cm.bin of=/dev/block/platform/155a0000.ufs/by-name/BOTA1
sleep 2
botaonerc=$?
debug "BOTA1 rc = $botaonerc"
if [ ! "$botaonerc" = "0" ]; then
  ui_print " # error while applying update: exit"
  ui_print " # logfile saved to: $debugfile"
  ui_print " "
  exit
fi
ui_print " # successfully done !"
ui_print " "

# automatic reboot with fota_bl option
ui_print " # logfile saved to: $debugfile"
ui_print " # automatic reboot in 5s..."
debug "end of script"
sleep 5
reboot fota_bl