Cause: You downloaded a version of Xender meant for a newer Android OS.
Since the official Google Play Store will likely restrict downloading modern Xender onto an Android 4.1.2 device, manual installation (sideloading) is required. Follow these steps carefully to ensure a secure installation. Step 1: Enable Unknown Sources Xender For Android 4.1.2
Standard Bluetooth on these devices tops out at theoretical speeds of 24 Mbps (and much lower in practice). Xender bypasses this limitation completely by using Wi-Fi Direct technology. It turns the sender's device into a local Wi-Fi hotspot, allowing the receiving device to connect directly and transfer data at speeds up to 40 Mbps—roughly 200 times faster than Bluetooth. Key Features of Xender for Older Devices Cause: You downloaded a version of Xender meant
Tap the green button located at the bottom of the screen. Step 1: Enable Unknown Sources Standard Bluetooth on