Deprecated - Use https://github.com/al3xtjames/MacGen instead

simpleMLB.sh

#!/bin/bash
#
# Simple Main Logic Board (MLB) Serial Generator Script by TheRacerMaster
# Based off the work of Hanger1, AGuyWhoIsBored & Alien:X
# NOTE: This is a simple script that doesn't do any checking of other SMBIOS values. It needs valid SMBIOS data which includes the following:
# - Valid SmUUID value in Clover config.plist under SMBIOS (generated using uuidgen)
# - ROM value set to UseMacAddr0 in Clover config.plist (uses MAC address of your first NIC as ROM value)
# - Properly formatted serial number (doesn't have to be a real one, just formatted properly) in Clover config.plist under SMBIOS
#    - Don't use a generic serial number (such as Clover's default)! It needs to be at least semi-unique.
#    - Try using a generated serial number that isn't real (but formatted correctly) from Clover Configurator, Chameleon Wizard, etc.
#    - You can check if a serial number is real here: https://selfsolve.apple.com/agreementWarrantyDynamic.do
#
# After getting a value, insert it in Clover config.plist under RtVariables -> MLB, then reboot
# Try logging into iMessage. If you get a customer code, call Apple and go through the process.
# iMessage should work after going through the customer support process.
#
# Changelog:
# Version 1.1 - Add user input support; you can now input a serial number (as an argument: ./simpleMLB.sh XXXXXXXXXXXX) and the script will use that to generate a MLB
# Version 1.2 - Add more input checks for valid serial number and working internet connection; added support for generating 13 character MLB (does it if serial number is 11 characters)
# Version 1.3 - Fixed some bugs; removed internet connection requirement; now, the script gets week and year numbers from the serial number itself (more accurate than random generation)
# Version 1.4 - Added debug mode which prints info about the serial number and each step of the MLB generation process

# If user input is valid, use that instead of the serial number of the current machine from IORegistry
if [ ! -z "$1" -a ${#1} == 11 ]; then
	MLBFormat=1 # 11 character SN = 13 character MLB
	SN="$1"
elif [ ! -z "$1" -a ${#1} == 12 ]; then
	MLBFormat=2 # 12 character SN = 17 character MLB
	SN="$1"
# Otherwise use the serial number of the current machine from IORegistry
else
	SN=$(ioreg -l | awk '/IOPlatformSerialNumber/ { print $4;}' | cut -d'"' -f2)
	if [ ${#SN} == 11 ]; then
		MLBFormat=1
	elif [ ${#SN} == 12 ]; then
		MLBFormat=2
	else
		echo "Error: Invalid serial number in IORegistry!"
		exit 128
	fi
fi
# Check for debug mode
if [ "$1" == "-debug" ] || [ "$2" == "-debug" ]; then
	debug=1
fi

# Debug
if [ "$debug" == 1 ]; then
	if [ "$MLBFormat" == 1 ]; then
		echo "Input serial number:" $SN "(12 characters)"
	else
		echo "Input serial number:" $SN "(13 characters)"
	fi
fi

# Get the manufacture year from the serial number
if [ "$MLBFormat" == 1 ]; then
	serialNumberYear=$(echo $SN | cut -c 3) # 11-digit serials store the year in the serial number, so we'll just use that
else
	serialNumberYear=$(echo $SN | cut -c 4) # 12-digit serials store them as letters, so we'll need to decode them first
	case "$serialNumberYear" in
		C | D) manufactureYear=0;;
		F | G) manufactureYear=1;;
		H | J) manufactureYear=2;;
		K | L) manufactureYear=3;;
		M | N) manufactureYear=4;;
		P | Q) manufactureYear=5;;
		R | S) manufactureYear=6;;
		T | V) manufactureYear=7;;
		W | X) manufactureYear=8;;
		Y | Z) manufactureYear=9;;
		*)
			echo "Error: Invalid serial number (reason: invalid year)!"
			exit 128;;
	esac
fi

# Debug
if [ "$debug" == 1 ]; then
	if [ "$MLBFormat" == 1 ]; then
		case "$serialNumberYear" in
			0) year=2010;;
			1) year=2011;;
			2) year=2002;;
			3) year=2003;;
			4) year=2004;;
			5) year=2005;;
			6) year=2006;;
			7) year=2007;;
			8) year=2008;;
			9) year=2009;;
		esac
	else
		case "$manufactureYear" in
			0) year=2010;;
			1) year=2011;;
			2) year=2012;;
			3) year=2013;;
			4) year=2014;;
			5) year=2015;;
			6) year=2016;;
			7) year=2017;;
			8) year=2018;;
			9) year=2019;;
		esac
	fi	
	echo "Year of manufacture (from serial number):" $year
fi

# Get the week number from the serial number
if [ "$MLBFormat" == 1 ]; then # 11-digit serial numbers store the week number as two digits, so no decoding needed
	if [[ $(echo $SN | cut -c 4-5) =~ ^-?[01-53]+$ ]]; then
		weekNumber=$(echo $SN | cut -c 4-5)
	else
		echo "Error: Invalid serial number (reason: invalid week number)!"
		exit 128
	fi
else
	serialNumberYear=$(echo $SN | cut -c 4)
	case "$serialNumberYear" in
		D | G | J | L | N | Q | S | V | X | Z) weekNumber=27;; # These serial number year values are offset by 27 weeks
	esac
	serialNumberWeek=$(echo $SN | cut -c 5)
	case "$serialNumberWeek" in
		[1-9]) ((weekNumber+=$serialNumberWeek));;
		C) ((weekNumber+=10));;
		D) ((weekNumber+=11));;
		F) ((weekNumber+=12));;
		G) ((weekNumber+=13));;
		H) ((weekNumber+=14));;
		K) ((weekNumber+=15));;
		L) ((weekNumber+=16));;
		M) ((weekNumber+=17));;
		N) ((weekNumber+=18));;
		P) ((weekNumber+=19));;
		Q) ((weekNumber+=20));;
		R) ((weekNumber+=21));;
		S) ((weekNumber+=22));;
		T) ((weekNumber+=23));;
		U) ((weekNumber+=24));;
		V) ((weekNumber+=25));;
		W) ((weekNumber+=26));;
		X) ((weekNumber+=27));;
		Y) ((weekNumber+=28));;
		*)
			echo "Error: Invalid serial number (reason: invalid week number)!"
			exit 128;;
	esac
fi

# Debug
if [ "$debug" == 1 ]; then
	echo "Week of manufacture (from serial number):" $weekNumber
fi

if [ "$MLBFormat" == 1 ]; then
	# Get the PP value (manufacture location) from the serial number
	PP=$(echo $SN | cut -c 1-2)

	# Get the SSSS value (production number) from the serial number
	SSSS=$(echo $SN | cut -c 6-8)

	# Generate a random (yet valid) CCCC value (model ID)
	BASE62=($(echo {0..9} {a..z} {A..Z}))
	partNumber=$(echo $(($RANDOM*7584284)) | cut -c 1-8)
	for i in $(bc <<< "obase=36; $partNumber"); do
		echo ${BASE62[$(( 10#$i ))]} | tr "\\n" "," | tr -d , >> tmpCCCC
	done
	CCCC=$(cat tmpCCCC | cut -c 1-4 | tr '[:lower:]' '[:upper:]')
	rm tmpCCCC
	# TODO: Base the CCCC off the model identifier in the 11-digit serial

	MLB=$PP$serialNumberYear$weekNumber"0"$SSSS$CCCC

	# Debug/Print MLB
	if [ "$debug" == 1 ]; then
		case "$PP" in
			F | FC | XA | XB | QP | G8) location="United States";;
			RN) location="Mexico";;
			CK) location="Ireland";;
			SE | E) location="Singapore";;
			MB) location-"Malaysia";;
			PT | CY) location="Korea";;
			EE | QT | UV) location="Taiwan";;
			1C | 4H | W8 | YM | VM | MQ | 7J) location="China";;
			RM) location="Refurbished/Remanufactured";;
		esac
		echo "Manufacture location (from serial number):" $location
		echo "Production number (from serial number):" $SSSS
		echo "Generated CCCC value:" $CCCC
		echo "Generated Main Logic Board (MLB) serial number:" $MLB "(13 characters)"
	else
		echo $MLB # Print the generated MLB value
	fi

elif [ "$MLBFormat" = 2 ]; then
	# Get the SSS value (manufacture location) from the serial number
	SSS=$(echo $SN | cut -c1-3)

	# Generate a random (yet valid) TTT value (board serial)
	declare -a TTTCodes=('200' '600' '403' '404' '405' '303' '108' '207' '609' '501' '306' '102' '701' '301' '501' '101' '300' '130' '100' '270' '310' '902' '104' '401' '902' '500' '700' '802')
	TTTIndex=$( jot -r 1  0 $((${#TTTCodes[@]} - 1)) )
	TTT=${TTTCodes[TTTIndex]}

	# Generate a random (yet valid) CC value
	declare -a CCCodes=('GU' '4N' 'J9' 'QX' 'OP' 'CD' 'GU')
	CCIndex=$( jot -r 1  0 $((${#CCCodes[@]} - 1)) )
	CC=${CCCodes[CCIndex]}

	# Generate a random (yet valid) EEEE value
	declare -a EEEECodes=('DYWF' 'F117' 'F502' 'F505' 'F9GY' 'F9H0' 'F9H1' 'F9H2' 'DYWD' 'F504' 'F116' 'F503' 'F2FR' 'F653' 'F49P' 'F651' 'F49R' 'F652' 'DYW3' 'F64V' 'F0V5' 'F64W' 'FF4G' 'FF4H' 'FF4J' 'FF4K' 'FF4L' 'FF4M' 'FF4N' 'FF4P' 'DNY3' 'DP00' 'DJWK' 'DM66' 'DNJK' 'DKG1' 'DM65' 'DNJJ' 'DKG2' 'DM67' 'DNJL' 'DJWM' 'DMT3' 'DMT5' 'DJWN' 'DM69' 'DJWP' 'DM6C')
	EEEEIndex=$( jot -r 1  0 $((${#EEEECodes[@]} - 1)) )
	EEEE=${EEEECodes[EEEEIndex]}

	# Generating a random (yet valid) KK value
	declare -a KKCodes=('1H' '1M' 'AD' '1F' 'A8' 'UE' 'JA' 'JC' '8C' 'CB' 'FB')
	KKIndex=$( jot -r 1  0 $((${#KKCodes[@]} - 1)) )
	KK=${KKCodes[KKIndex]}

	MLB=$SSS$manufactureYear$weekNumber$TTT$CC$EEEE$KK

	# Debug/Print MLB
	if [ "$debug" == 1 ]; then
		case "$SSS" in
			CK2) location="Cork, Ireland";;
			C02) location="Quanta Computer, China";;
		esac
		echo "Manufacture location (from serial number):" $location
		echo "Generated TTT value:" $TTT
		echo "Generated CC value:" $CC
		echo "Generated EEEE value:" $EEEE
		echo "Generated KK value:" $KK 
		echo "Generated Main Logic Board (MLB) serial number:" $MLB "(17 characters)"
	else
		echo $MLB # Print the generated MLB value
	fi
fi

Shouldn't line 50 be 11 characters and line 52 be 12 characters?

Line 112 always fails for me as the regexp doesn't find the characters. This works for me: if [[ $(echo $SN | cut -c 4-5) =~ ^(-|[0-4])[0-9]|[5][0-3]+$ ]]; then