1.first go to SETTINGS
2. Then click on ABOUT PHONE
3. find VERSION and Click 7 times on VERSION for devloper mode.
Then come out from there and
4. go to ADDITIONAL SETTINGS
5 find the' DEVLOPER OPTION ' and keep it ON
6 then find the 'USB DEBUGGING ' and ON it (for 10 minites)
Now you can connect to your phone by USB cable

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