Android 4.2.2 had a known Wi-Fi Direct bug on some chipsets (Broadcom BCM4330). Fix: Disable "Wi-Fi Optimization" under Advanced Wi-Fi settings . Then restart both devices.
Do not use ShareIt v4.0.39 on any device connected to sensitive networks or containing personal/financial data. shareit apk for android 422 exclusive
Send files from your Android 4.2.2 tablet to: Android 4
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Go to Settings > Security and toggle on Unknown Sources to allow installation from outside the Play Store.