Q: It gets stuck on apple logo and won't startup and showing recovery mode screens. It is showing error while updating or recovering with iTunes. What to do?

Can you give us more details about the error message?

If there are also error numbers given, check this article about possible solutions:

Get help with iOS update and restore errors

Try these steps, click on the blue links to get more info, if needed.

Check your security software

Errors: 2, 4, 6, 9, 1611, 9006.

Sometimes security software can stop your device from communicating with either the Apple update server or with your device.

Check your security software and settings to make sure that they aren't blocking a connection to the Apple servers.

If you still see the error message, check for USB connection issues.

Check your USB connections

Errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014. You might also see a message that includes "invalid response."

If the USB connection between your device and computer is interrupted, you might not be able to update or restore.

To narrow down the issue, try different equipment:

• Use the USB cable that came with your device, or a different Apple USB cable.
• Plug your cable into a different USB port directly on your computer. Don't plug it into your keyboard.
• Try a different computer.
• Solve other issues with the USB connection, then with your security software.

If you still see the error message, check for hardware issues.

copied from Get help with iOS update and restore errors - Apple Support

A Very Google solution plz try all people

This is no "Google solution", this is the way Apple suggests solving error messages. Step by step, just to make sure that all angles of this problem are covered and tested.

Trying these suggestions can save you a trip to the Apple Store and getting your device serviced.