Part 3: [For iPhone] How to Fix WhatsApp is Temporarily Unavailable? Way 1. Check If Cellular Data is Working Go to Settings of your device and tap Cellular or Settings. You will see the “Mobile Data” option. Scroll down a bit and tap System Services. From there, you can see if...
When you are preparing for the WhatsApp chat history transfer, go to Settings > WiFi, touch and hold each known network, and forget the network on your Android; turn off the cellular data connection of your Android device. These measures will increase the successful rate of the Android to i...