6 months guarantee for None human caused damage. Not Recommend to install it without any experience. Professional technician is needed for installation. We won’t responsible for any damage due to improper operation. With Free Repair Tools + Adhesive tape + Tempered Glass, you may need other tools to complete installation.. ( The Tools and accessories Are Not Replaceable ) No instructions, there're lots of instruction videos on YouTube, you can check them out. All the screens have passed through a series strict tests before shipping out and have been well-packed. COMPATIBLE with Motorola Moto G7 XT1962 XT1962-4 XT1962-5 6.2 Inch 153mm - (Note: This item doesn't fit Moto G7 Power & G7 Play & G7 Plus, see the 2nd picture to confirm the models before place order).