[Android Apps and Games] rayman3:
Please be sure that:

1. java is installed. Try to reinstall java (remove your installation of java, boot again and install again)

2. if plugin your phone in developer-mode (without starting DB-Extractor), be sure that the device is installing as adb-interface and you confirm the fingerprint.

Try to deinstall your device in the hardware-configuration (incl. all adb-drivers). Install your device again as adb-interface, confirm the fingerprint.

3. unzip the data from the file "WhatsApp-Key-DB-Extractor-master.zip" in a folder of your choice. After that do not rename or move the unzipped folder.

4. before starting the script, try to download the legacy-version of WA and copy it into the tmp-folder (WhatsApp-Key-DB-Extractor-master/tmp). The tmp-folder is still created with unzipping the main program. You can download the legacy-version at "http://whatcrypt.com/WhatsApp-2.11.431.apk". After download the apk, rename it to "LegacyWhatsApp.apk" and copy it to the tmp-folder. The script will do the same if you start it.

Sometimes your firewall or security-software prevents the download via the script or there are other probs with the connection, so it´s better you download it manually. You have to do that only one time.

The script checks the folder "tmp" and the size of the apk. The script do not download the apk, if it´s already in the tmp-folder.

5. Start the script, connect the phone, confirm the fingerprint, confirm the backup-function (if your device do not show the confirm-button, tap on the lower right border of your screen). If you have set a password in the backup-options of your phone, you have to use this password, in other case leave it blank.

Now the script goes on like this:

=========================================================================

= This script will extract the WhatsApp Key file and DB on Android 4.0+ =

= You DO NOT need root for this to work but you DO need Java installed. =

= If your WhatsApp version is greater than 2.11.431 (most likely), then =

= a legacy version will be installed temporarily in order to get backup =

= permissions. You will NOT lose ANY data and your current version will =

= be restored at the end of the extraction process so try not to panic. =

= Script by: TripCode (Greets to all who visit: XDA Developers Forums). =

= Thanks to: dragomerlin for ABE and to Abinash Bishoyi for being cool. =

= ### Version: v4.5 (17/05/2016) ### =

=========================================================================

Please connect your Android device with USB Debugging enabled:

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

WhatsApp 2.16.109 installed

Found legacy WhatsApp 2.11.431 in local folder

Backing up WhatsApp 2.16.109

5258 KB/s (29537650 bytes in 5.485s)

Backup complete

Installing legacy WhatsApp 2.11.431

4865 KB/s (18329558 bytes in 3.679s)

pkg: /data/local/tmp/LegacyWhatsApp.apk

Success

Install complete

Now unlock your device and confirm the backup operation.

Please enter your backup password (leave blank for none) and press Enter:

Strong AES encryption not allowed

Magic: ANDROID BACKUP

Version: 3

Compressed: 1

Algorithm: none

2365952 bytes written to tmp\whatsapp.tar.

apps/com.whatsapp/f/key

apps/com.whatsapp/db/msgstore.db

apps/com.whatsapp/db/wa.db

apps/com.whatsapp/db/axolotl.db

apps/com.whatsapp/db/chatsettings.db

Extracting whatsapp.cryptkey ...

1 Datei(en) kopiert.

Extracting msgstore.db ...

1 Datei(en) kopiert.

Extracting wa.db ...

1 Datei(en) kopiert.

Extracting axolotl.db ...

1 Datei(en) kopiert.

Extracting chatsettings.db ...

1 Datei(en) kopiert.

Pushing cipher key to: /storage/emulated/legacy/WhatsApp/Databases/.nomedia

9 KB/s (158 bytes in 0.016s)

Cleaning up temporary files ...

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\whatsapp.ab

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\whatsapp.tar

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\waplen.txt

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\sdpath.txt

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\wapath.txt

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\wapver.txt

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\sdkver.txt

Done

Restoring WhatsApp 2.16.109

4840 KB/s (29537650 bytes in 5.959s)

pkg: /data/local/tmp/base.apk

Success

Restore complete

Removing WhatsApp 2.16.109 temporary apk

Datei wurde gelöscht - C:\Users\WhatsApp-Key-DB-Extractor-master\WhatsApp-Key-DB-Ext

ractor-master\tmp\base.apk

Operation complete

Hope this helps you. I just tried it on my notebook with a google nexus and it still works!:D

---------- Post added at 07:14 PM ---------- Previous post was at 07:11 PM ----------

If the adb-backup starts and the screen will not show the backup-button, tap on the lower right side of the screen (where normaly the backup-button should prompt).

Now the backup starts, although there is no button and even you don´t set a password.:D