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Историческую версию Device Tools можно получить на Android
Сканер QR-кода, генератор и дополнительные инструменты для устройств
You can easily scan QR Code and easily generate QR code with this app.
in this app have extra device tools .
Battery Info
Device info
Root checker
Flash Light
You can use this feature in free of coast in 2020.
Verify proper root (superuser or su) access is configured and working using Root Checker! Free, fast, easy, and used on over 50 million Android devices, Root Checker shows the user whether or not root (superuser) access is properly installed and working.