iPhone SE unable to update or restore through iTunes
i am in recovery mode (iTunes sign with plug picture) on (iPhone SE). Trying to do "update" instead of restore but get a message that "device can not be found". Have latest iTune. Also if try to to perform "update and Restore" get the same message.
When trying to update or restore the iPhone through iTunes in "recovery mode" the iTunes sign and plug screen on iPhone disappears and apple logo appears for few second then back to recovery screen.
On the computer iTunes says "extracting software" then message appears that "device can not be found". The phone has new battery, cpu, and mother board instilled by apple service center. After the service iPhone will keep restarting every 5-10 minutes so i decided to update the firmware as one of the solutions. now i am stuck at "recovery mode"
iPhone SE