On the new device install Viber and activate your mobile number.On both devices install some Root File Manager (further 'RFM'), like Total Commander or ES File Explorer.In addition, if you want to have all photos and videos from your conversations, you must migrate them too. To completely migrate Viber, you will have to copy your message databases from old device and set them to Viber's own on new device. Probably DB files could be restored directly but I had no time to test You can try to edit Viber DB files with SQLite editor. I run into problems on Win7 with adb so finally used Lubuntu. I have just tested on Android 4.1 and 5.0.

Sudo adb restore /home/user/Downloads/vibernewok.ab ab and restore data to phone sudo java -jar abe.jar pack /home/user/a/vibernewphone2.tar /home/user/Downloads/vibernewok.ab Copy files below from viberoldphone1.tar DB directory to vibernewphone2.tar Open TAR archives in an archive manager (found Archive manager for GNOME 3.14.2 on my Lubuntu LiveCD). Sudo java -jar abe.jar unpack /home/user/Downloads/vibernewphone2.ab /home/user/a/vibernewphone2.tar Install Viber on new phone and activate Viber, connect the new phone and create backup with adb backup sudo adb backup -f /home/user/Downloads/vibernewphone2.ab Sudo java -jar abe.jar unpack /home/user/Downloads/viberoldphone1.ab /home/user/Downloads/viberoldphone1.tar Sudo apt-get install android-tools-adb android-tools-fastbootĬonnect the old mobile, create backup with adb backup (disable WiFi and data and forget the old phone) sudo adb backup -f /home/user/Downloads/viberoldphone1.ab Then do sudo apt-get install openjdk-8-jre-headless Install ADB and OpenJDK 8 (I had nothing to do with security extension) by following adb backup guide on XDA.

Viber message history on pc