Legacy-iOS-Kit/resources/downgrade.sh
2022-10-08 12:25:24 +08:00

288 lines
9.8 KiB
Bash
Executable File

#!/bin/bash
FRBaseband() {
local BasebandSHA1L
if [[ $DeviceProc == 7 ]]; then
mkdir -p saved/baseband 2>/dev/null
cp -f $IPSWRestore/Firmware/$Baseband saved/baseband
fi
if [[ ! -e saved/baseband/$Baseband ]]; then
Log "Downloading baseband..."
$partialzip $BasebandURL Firmware/$Baseband $Baseband
$partialzip $BasebandURL BuildManifest.plist BuildManifest.plist
mkdir -p saved/$ProductType saved/baseband 2>/dev/null
mv $Baseband saved/baseband
mv BuildManifest.plist saved/$ProductType
BuildManifest="saved/$ProductType/BuildManifest.plist"
elif [[ $DeviceProc != 7 ]]; then
BuildManifest="saved/$ProductType/BuildManifest.plist"
fi
BasebandSHA1L=$($sha1sum saved/baseband/$Baseband | awk '{print $1}')
if [[ ! -e $(ls saved/baseband/$Baseband) || $BasebandSHA1L != $BasebandSHA1 ]]; then
rm -f saved/baseband/$Baseband saved/$ProductType/BuildManifest.plist
if [[ $DeviceProc == 7 || $platform == "win" ]]; then
Error "Downloading/verifying baseband failed. Please run the script again"
else
Log "Downloading/verifying baseband failed, will proceed with --latest-baseband flag"
return 1
fi
fi
}
FutureRestore() {
local ExtraArgs=()
Log "Proceeding to futurerestore..."
if [[ $IPSWA7 != 1 ]]; then
ExtraArgs+=("--use-pwndfu")
cd resources
$SimpleHTTPServer &
ServerPID=$!
cd ..
fi
if [[ $DeviceProc == 7 ]]; then
ExtraArgs+=("-s" "$IPSWRestore/Firmware/all_flash/$SEP" "-m" "$BuildManifest")
if [[ $IPSWA7 != 1 ]]; then
# Send dummy file for device detection
$irecovery -f README.md
sleep 2
fi
elif [[ $SendiBSS != 1 ]]; then
ExtraArgs+=("--no-ibss")
fi
if [[ $Baseband == 0 ]]; then
Log "Device $ProductType has no baseband/disabled baseband update"
ExtraArgs+=("--no-baseband")
else
FRBaseband
if [[ $? == 1 ]]; then
ExtraArgs+=("--latest-baseband")
else
ExtraArgs+=("-b" "saved/baseband/$Baseband" "-p" "$BuildManifest")
fi
fi
Log "Running futurerestore with command: $futurerestore -t \"$SHSH\" ${ExtraArgs[*]} \"$IPSWRestore.ipsw\""
$futurerestore -t "$SHSH" "${ExtraArgs[@]}" "$IPSWRestore.ipsw"
echo
Log "Restoring done! Read the message below if any error has occurred:"
Echo "* Please read the \"Troubleshooting\" wiki page in GitHub before opening any issue!"
Echo "* Your problem may have already been addressed within the wiki page."
Echo "* If opening an issue in GitHub, please provide a FULL log/output. Otherwise, your issue may be dismissed."
echo
}
DowngradeOther() {
local FWKeys
local NoMove
Input "Select your IPSW file in the file selection window."
IPSW="$($zenity --file-selection --file-filter='IPSW | *.ipsw' --title="Select IPSW file")"
[[ ! -s "$IPSW" ]] && Error "No IPSW selected, or IPSW file not found."
IPSW="${IPSW%?????}"
Log "Selected IPSW file: $IPSW.ipsw"
Input "Select your SHSH file in the file selection window."
SHSH="$($zenity --file-selection --file-filter='SHSH | *.shsh *.shsh2' --title="Select SHSH file")"
[[ ! -s "$SHSH" ]] && Error "No SHSH selected, or SHSH file not found."
Log "Selected SHSH file: $SHSH"
Log "Getting build version from IPSW"
unzip -o -j "$IPSW.ipsw" Restore.plist -d tmp
if [[ $platform == "macos" ]]; then
plutil -extract 'ProductBuildVersion' xml1 tmp/Restore.plist -o tmp/BuildVer
BuildVer=$(cat tmp/BuildVer | sed -ne '/<string>/,/<\/string>/p' | sed -e "s/<string>//" | sed "s/<\/string>//" | sed '2d')
else
BuildVer=$(cat tmp/Restore.plist | grep -i ProductBuildVersion -A 1 | grep -oPm1 "(?<=<string>)[^<]+")
fi
FWKeys="./resources/firmware/$ProductType/$BuildVer"
Log "Checking firmware keys in $FWKeys"
if [[ -e $FWKeys/index.html ]]; then
if [[ $(cat $FWKeys/index.html | grep -c "$BuildVer") != 1 ]]; then
Log "Existing firmware keys are not valid. Deleting"
rm $FWKeys/index.html
fi
fi
if [[ ! -e $FWKeys/index.html ]]; then
Log "Getting firmware keys for $ProductType-$BuildVer"
mkdir -p $FWKeys 2>/dev/null
curl -L https://github.com/LukeZGD/iOS-OTA-Downgrader-Keys/raw/master/$ProductType/$BuildVer/index.html -o tmp/index.html
if [[ $(cat tmp/index.html | grep -c "$BuildVer") != 1 ]]; then
curl -L https://api.m1sta.xyz/wikiproxy/$ProductType/$BuildVer -o tmp/index.html
if [[ $(cat tmp/index.html | grep -c "$BuildVer") != 1 ]]; then
Log "Warning - Failed to download firmware keys."
NoMove=1
fi
fi
if [[ $NoMove == 1 ]]; then
rm $FWKeys/index.html
elif [[ -s tmp/index.html ]]; then
mv tmp/index.html $FWKeys
fi
fi
kDFU
IPSWSetExtract
FutureRestore
}
iDeviceRestore() {
mkdir shsh
cp $SHSH shsh/${UniqueChipID}-${ProductType}-${OSVer}.shsh
Log "Proceeding to idevicerestore..."
ExtraArgs="-e -w"
if [[ $1 == "latest" ]]; then
ExtraArgs="-e"
elif [[ $platform == "win" && $ProductType != "iPhone3"* ]]; then
ExtraArgs="-r"
idevicerestore="$idevicererestore"
if [[ $Baseband == 0 ]]; then
Log "Device $ProductType has no baseband/disabled baseband update"
else
FRBaseband
cp saved/baseband/$Baseband tmp/bbfw.tmp
cp $BuildManifest tmp/BuildManifest.plist
fi
fi
Log "Running idevicerestore with command: $idevicerestore $ExtraArgs \"$IPSWRestore.ipsw\""
$idevicerestore $ExtraArgs "$IPSWRestore.ipsw"
echo
Log "Restoring done! Read the message below if any error has occurred:"
if [[ $platform == "win" ]]; then
Echo "* Windows users may encounter errors like \"Unable to send APTicket\" or \"Unable to send iBEC\" in the restore process."
Echo "* To fix this, follow troubleshooting steps from here: https://github.com/LukeZGD/iOS-OTA-Downgrader/wiki/Troubleshooting#windows"
fi
Echo "* Please read the \"Troubleshooting\" wiki page in GitHub before opening any issue!"
Echo "* Your problem may have already been addressed within the wiki page."
Echo "* If opening an issue in GitHub, please provide a FULL log/output. Otherwise, your issue may be dismissed."
echo
}
IPSWCustomA7() {
local fr194=()
if [[ $platform == "macos" ]]; then
fr194=("https://github.com/futurerestore/futurerestore/releases/download/194/futurerestore-v194-macOS.tar.xz" "d279423dd9a12d3a7eceaeb7e01beb332c306aaa")
elif [[ $platform == "linux" ]]; then
fr194=("https://github.com/futurerestore/futurerestore/releases/download/194/futurerestore-v194-ubuntu_20.04.2.tar.xz" "9f2b4b6cc6710d1d68880711001d2dc5b4cb9407")
fi
Input "Custom IPSW Option"
Echo "* When this option is enabled, a custom IPSW will be created/used for restoring."
Echo "* Only enable this when you encounter problems with futurerestore."
Echo "* This option is disabled by default (N)."
read -p "$(Input 'Enable this option? (y/N):')" IPSWA7
if [[ $IPSWA7 != 'Y' && $IPSWA7 != 'y' ]]; then
return
fi
IPSWA7=1
Log "Custom IPSW option enabled by user."
futurerestore="./resources/tools/futurerestore194_$platform"
if [[ ! -e $futurerestore ]]; then
cd tmp
SaveFile ${fr194[0]} futurerestore.tar.xz ${fr194[1]}
7z x futurerestore.tar.xz
tar -xf futurerestore*.tar
chmod +x futurerestore-v194
mv futurerestore-v194 ../$futurerestore
cd ..
fi
}
RetryOption() {
Input "Retry Command Option"
Echo "* This gives users the option to retry the restore command."
Echo "* It can be useful in case that the restore failed early."
Echo "* If the restore failed with the device no longer in DFU, this will not work."
Echo "* This option is disabled by default (N)."
read -p "$(Input 'Enable this option? (y/N):')" Retry
if [[ $Retry != 'Y' && $Retry != 'y' ]]; then
return
fi
$1
}
DowngradeOTA() {
if [[ $DeviceProc != 7 ]]; then
JailbreakOption
fi
SaveOTABlobs
IPSWFindVerify
kDFU
if [[ $Jailbreak == 1 || $ProductType == "$DisableBBUpdate" ]]; then
IPSW32
else
IPSWCustom=0
fi
IPSWSetExtract
FutureRestore
RetryOption FutureRestore
}
DowngradeOTAWin() {
IPSWCustom="${IPSWType}_${OSVer}_${BuildVer}_CustomW"
if [[ $DeviceProc != 7 ]]; then
JailbreakOption
SaveOTABlobs
fi
IPSWFindVerify
if [[ $DeviceProc == 7 ]]; then
IPSWA7=1
IPSWSetExtract
IPSW64
EnterPwnREC
local APNonce=$($irecovery -q | grep "NONC" | cut -c 7-)
Log "APNONCE: $APNonce"
SaveOTABlobs $APNonce
IPSWSetExtract set
FutureRestore
return
fi
kDFU
IPSW32
IPSWSetExtract
iDeviceRestore
RetryOption iDeviceRestore
}
Downgrade() {
Log "Select your options when asked. If unsure, go for the defaults (press Enter/Return)."
echo
if [[ $DeviceProc == 7 && $platform != "win" ]]; then
IPSWCustomA7
fi
if [[ $platform == "win" || $IPSWA7 == 1 ]]; then
DowngradeOTAWin
return
elif [[ $OSVer == "Other" ]]; then
DowngradeOther
return
fi
DowngradeOTA
}
Downgrade4() {
JailbreakOption
IPSWFindVerify
Save712Blobs
if [[ $OSVer == "7.1.2" && $Jailbreak != 1 ]]; then
IPSWSetExtract
iDeviceRestore latest
return
elif [[ $OSVer != "7.1.2" ]]; then
IPSWFindVerify 712
fi
IPSW4
IPSWSetExtract
iDeviceRestore
RetryOption iDeviceRestore
Log "Downgrade script done!"
}