Developer Options SAMSUNG Galaxy Tab 4 - USB Debugging
У вашего броузера проблема в совместимости с HTML5
How to enable USB Debugging in SAMSUNG T230 Galaxy Tab 4? How to enable Developer Options in SAMSUNG T230 Galaxy Tab 4? How to open Developer Options? How to use Developer Mode in SAMSUNG T230 Galaxy Tab 4?
After switching on USB debugging, you can connect Android smartphone to PC so as to back up data from devices to computers or drag and drop files to the phone as well.
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http://www.hardreset.info/devices/samsung/samsung-t230-galaxy-tab-4-70/