There is my way to solve the issue, you can have a try maybe.
1: Get the data cable out of your computer then turn off your iPhone.
2: Long press "Home" button until you have your iPhone connected to the computer with the data cable. Then release the "Home" button.
3: Now you iPhone has entered recovery mode smoothly.
Step 4: Then choose both the "Home" and "Power" button at the same time until you see a "white apple" logo on the screen. Then you can exit the recovery mode.
Actually, you can use iPhone Data Recovery to exit recovery mode as well.
1: Get the data cable out of your computer then turn off your iPhone.
2: Long press "Home" button until you have your iPhone connected to the computer with the data cable. Then release the "Home" button.
3: Now you iPhone has entered recovery mode smoothly.
Step 4: Then choose both the "Home" and "Power" button at the same time until you see a "white apple" logo on the screen. Then you can exit the recovery mode.
Actually, you can use iPhone Data Recovery to exit recovery mode as well.
