USB port does not detect cell phone

Have you launched Kies when attempting to connect? 

1. Let's try firmware upgrade -
2. From your laptop computer, click the desktop icon to launch Kies

Mini.

3. On your phone, from the Home screen, tap Settings ➔

Applications ➔ USB settings ➔ Kies (Firmware update).

******

After Applications I found no USB settings,

Now what?******

4. Press to return to the Home screen.
5. Make sure the battery is fully charged and connect your

phone to the computer using the USB cable.

The Kies Mini pop-up is displayed on your computer.

6. From your computer, click the Phone Upgrade button.
7. If the computer displays a connection dialog box, close it.
8. Click on the I have read and understood the preceding

information check box, then click Upgrade.

The installation process begins.

9. When the installation process completes, click OK on the

Result screen.

The phone reboots and the upgrade screen closes. You can

now disconnect and use the handset as normal.

. On your phone, from the Home screen, tap Settings ➔

Applications ➔ USB settings ➔ Kies (Firmware update).

there is no kies (firmware update) on my PC. what should I  do, then? my phone device cannot connect to my PC..

I have a Samsung J7 MAX cell phone. When I connect the phone to the USB port it charges but Windows does not detect the phone to install the device driver.  I have tried other USB devices and the ports work for each on I tried except for the cell phone.  Is there something I can do so I can download pictures from my cell phone onto my laptop?

I cannot see anything on my phone except a few dots. How can I download thru my usb port ,my phone does not show up on my computer. the phone is an android (samsung Luna)