WIP

.gitignore

@@ -0,0 +1,3 @@
+*.shsh2
+tmp/
+tools/

README.md

@@ -1,2 +1,4 @@
 # 841-OTA-Downgrader
  Downgrade almost any 32-bit device to iOS 8.4.1
+
+### WIP

restore.sh

@@ -1,6 +1,59 @@
 #!/bin/bash
-clear
 
+platform="linux"
+
+iv_k93=781b9672a86ba1b41f8b7fa0af714c94
+key_k93=db03d63a767b5211d644fccd3e85ef4d5704c94d7589e0fa9ca475a353d8734b
+
+iv_k94=883c92ed915e4d2481570a062583495b
+key_k94=ccfadf3732904885d38f963cce035d7e03b387b67212d526503c85773b58e52f
+
+iv_k95=460116385cca6d5596221c58ae122669
+key_k95=7852f1fd93d9d49ebea44021081e8f1dffa336d0d3e9517374f8be451dd92eb7
+
+iv_k93a=976aa656929ac699fff36715de96876d
+key_k93a=5fe5c47b5620c2b40b1ca2bd1764a92d568901a24e1caf8faf0cf0f84ae11b4e
+
+iv_p101=b21abc8689b0dea8f6e613f9f970e241
+key_p101=b9ed63e4a31f5d9d4d7dddc527e65fd31d1ea48c70204e6b44551c1e6dfc52b5
+
+iv_p102=56231fd62c6296ed0c8c411bcef602e0
+key_p102=cdb2142489e5e936fa8f3540bd036f62ed0f27ddb6fec96b9fbfec5a65bc5f17
+
+iv_p103=fa39c596b6569e572d90f0820e4e4357
+key_p103=34b359fcc729a0f0d2853e786a78b245ed36a9212c8296aaab95dc0401cf07de
+
+iv_j1=c3ea87ed43788dfc3e268abdf1af27dd
+key_j1=cd3dd7eee07b9ce8b180d1526632cf86dc7fef7d52352d06af354598ab9cf2ef
+
+iv_j2=32fcd912cb9a472ef2a6db72596ae01c
+key_j2=076720d5a07e8011bdda6f6eafaf4845b40a441615cd1d7c1a9cca438ce7db17
+
+iv_j2a=e6b041970cd611c8a1561a4c210bc476
+key_j2a=aec6a888d45bd26106ac620d7d4ec0c160ab80276deedc1b50ce8f5d99dcc9af
+
+iv_p105=a5892a58c90b6d3fb0e0b20db95070d7
+key_p105=75612774968009e3f85545ac0088d0d0bb9cb4e2c2970e8f88489be0b9dfe103
+
+iv_p106=fba6d9aaec7237891c80390e6ffa88bf
+key_p106=92909dca9bfdb9193131f9ad9b628b1a4971b1cbab52c0ddd114a6253fad96c0
+
+iv_p107=1d99e780d96c32a25ca7e4b1c7fe14c0
+key_p107=4e2c14927693d61e1da375e340061521c9376007163f6ab55afbe1a03b901fd3
+
+iv_n78=e0175b03bc29817adc312638884e0898
+key_n78=0a0e0aedc8171669c9af6a229930a395959df55dcd8a3ee1fe0f4c009007df3c
+
+iv_n94=147cdef921ed14a5c10631c5e6e02d1e
+key_n94=6ea1eb62a9f403ee212c1f6b3039df093963b46739c6093407190fe3d750c69c
+
+iv_n41=bd0c8b039a819604a30f0d39adf88572
+key_n41=baf05fe0282f78c18c2e3842be4f9021919d586b55594281f5b5abd0f6e61495
+
+iv_n42=fdad2b7a35384fa2ffc7221213ca1082
+key_n42=74cd68729b800a20b1f8e8a3cb5517024a09f074eaa05b099db530fb5783275e
+
+clear
 echo "******* 841-OTA-Downgrader *******"
 echo "          - by LukeZGD            "
 echo
@@ -8,27 +61,99 @@ echo
 HardwareModel=$(ideviceinfo | grep 'HardwareModel' | cut -c 16-)
 HardwareModelLower=$(echo $HardwareModel | tr '[:upper:]' '[:lower:]' | sed 's/.\{2\}$//')
 ProductType=$(ideviceinfo | grep 'ProductType' | cut -c 14-)
+ProductVersion=$(ideviceinfo | grep 'ProductVersion' | cut -c 17-)
+UniqueChipID=$(ideviceinfo | grep 'UniqueChipID' | cut -c 15-)
+iBSS="iBSS.$HardwareModelLower.RELEASE"
 
 if [ ! $HardwareModel ]
 then
-    echo "Please plug in the device before proceeding"
+    echo "Please plug the device in before proceeding"
     echo
     exit
 fi
 
-echo "HardwareModel = $HardwareModel"
-echo "ProductType = $ProductType"
-echo "HardwareModelLower = $HardwareModelLower"
+echo "HardwareModel: $HardwareModel"
+echo "ProductType: $ProductType"
+echo "ProductVersion: $ProductVersion"
+echo "UniqueChipID (ECID): $UniqueChipID"
+echo "iBSS: $iBSS"
 echo
 
-IPSW="${HardwareModel}_8.4.1_12H321_Restore.ipsw"
+IPSW="${ProductType}_8.4.1_12H321_Restore"
 
-if [  -e $IPSW ]
+#if [ ! -e ${IPSW}.ipsw ]
+if [  -e ${IPSW}.ipsw ]
 then
     echo "iOS 8.4.1 IPSW is missing! Please put the IPSW on the same directory of this script"
     echo
     exit
 fi
 
-echo "Downloading kloader..."
-wget -q "https://github.com/axi0mX/ios-kexec-utils/raw/master/kloader"
+echo "Downloading tsschecker..."
+mkdir tmp
+wget -q "https://github.com/tihmstar/tsschecker/releases/download/v212/tsschecker_v212_mac_win_linux.zip" -O "tmp/tsschecker.zip"
+echo "Extracting tsschecker..."
+unzip -q tmp/tsschecker.zip -d tools/tsschecker/
+chmod +x tools/tsschecker/tsschecker_$platform
+echo
+
+echo "Downloading futurerestore..."
+wget -q "http://api.tihmstar.net/builds/futurerestore/futurerestore-latest.zip" -O "tmp/futurerestore.zip"
+echo "Extracting futurerestore..."
+unzip -q tmp/futurerestore.zip -d tools/futurerestore/
+chmod +x tools/futurerestore/futurerestore_$platform
+echo 
+
+echo "Downloading ota.json..."
+wget -q "https://api.ipsw.me/v2.1/ota.json/condensed" -O tmp/ota.json
+echo "Copying ota.json to /tmp..."
+cp tmp/ota.json /tmp
+echo
+
+echo "Downloading OTA Firmware..."
+wget -q "https://api.ipsw.me/v4/ota/download/$ProductType/12H321?prerequisite=12H143" -O tmp/ota.zip
+echo "Extracting BuildManifest.plist..."
+unzip -q -j tmp/ota.zip AssetData/boot/BuildManifest.plist -d tmp/
+echo
+
+echo "Saving 8.4.1 blobs with tsschecker..."
+env "LD_PRELOAD=libcurl.so.3" tools/tsschecker/tsschecker_$platform -d $ProductType -i 8.4.1 -o -s -e $UniqueChipID -m tmp/BuildManifest.plist > /dev/null 2>&1
+echo
+
+echo "Extracting 8.4.1 IPSW..."
+unzip -q ${IPSW}.ipsw -d $IPSW/
+echo
+
+echo "Decrypting iBSS..."
+iv=iv_$HardwareModelLower
+key=key_$HardwareModelLower
+echo "IV = ${!iv}"
+echo "Key = ${!key}"
+tools/xpwntool_$platform $IPSW/Firmware/dfu/$iBSS.dfu tmp/iBSS.dec -k ${!key} -iv ${!iv} -decrypt
+echo
+
+echo "Patching iBSS..."
+bspatch tmp/iBSS.dec patches/$iBSS.patch tmp/pwnediBSS
+echo
+
+if [ ! $iOS10 ]
+then
+    kloader="kloader"
+else
+    kloader="kloader_hgsp"
+fi
+
+echo "Please enter Wi-Fi IP address of device for SSH connection:"
+#read IPAddress
+echo "Will now connect to device using SSH"
+echo "Please enter root password when prompted (default is 'alpine')"
+echo
+
+echo "Copying stuff to device..."
+scp tools/$kloader root@$IPAddress:/usr/bin
+scp tmp/pwnediBSS root@$IPAddress:/
+echo
+
+echo "Entering pwnDFU mode..."
+ssh root@$IPAddress "$kloader /pwnediBSS"
+echo