This is Power Button flex cable.
Best replacement for your cracked, damaged,malfunction, or non-working power button, volume button,mute switch button connector as to let the device work functionally again.
We don't have installation guide for this, but it might be possible to find it on the internet.
Taking the parts away is not easy. Please consider whether you can do it.
Power Button Volume and Silent Switch Keypad Flex Cable for iPhone 5
This keypad flex cable contains power on/off button, volume controls and silent switch
This is the part you require if you has difficulty accessing the silent mode, power on/off or is unable to change the volume
This is NOT an easy job for someone who has no technical skills with
Compatible With: iPhone 5 GSM only
Accessory only, iPhone not included!
1 x Power Switch Flex Cable GSM (821-1416-A) For iPhone 5