diff --git a/README.md b/README.md
index 72cfe0f..dbe21f8 100644
--- a/README.md
+++ b/README.md
@@ -67,8 +67,9 @@ The Mobile App Pentest cheat sheet was created to provide concise collection of
 * [ClassNameDeobfuscator](https://github.com/HamiltonianCycle/ClassNameDeobfuscator) - Simple script to parse through the .smali files produced by apktool and extract the .source annotation lines.
 * [Android backup extractor](https://github.com/nelenkov/android-backup-extractor) - Utility to extract and repack Android backups created with adb backup (ICS+). Largely based on BackupManagerService.java from AOSP. 
 Tip !! "adb backup" command can also be used for extracting application package with the following command: 
-  * `adb backup <package name>`
-  * `dd if=backup.ab bs=1 skip=24 | python -c "import zlib,sys;sys.stdout.write(zlib.decompress(sys.stdin.read()))" > backup.tar`
+  * `adb backup <package name> -f backup.ab`
+  * `adb backup -noapk <package name> -f backup_data.ab`
+  * `dd if=backup.ab bs=32MB skip=24 iflag=skip_bytes | python -c "import zlib,sys;sys.stdout.buffer.write(zlib.decompress(sys.stdin.buffer.read()))" > backup.tar`
 * [GDA(GJoy Dex Analysizer)](https://github.com/charles2gan/GDA-android-reversing-Tool) - GDA, a new Dalvik bytecode decompiler, is implemented in C++, which has the advantages of faster analysis and lower memory&disk consumption and an stronger ability to decompiling the APK, DEX, ODEX, OAT files(supports JAR, CLASS and AAR files since 3.79)
  
 #### Dynamic and Runtime Analysis