Followed this guide to replace battery due to water damage on my iPhone 5C. Both adhesive strips broke and I used heat pad to first heat up phone from backside and used a plastic card to remove battery. You need to be very careful while removing battery as any extra pressure will damage other parts. The difficult part was to put back the screws of connectors bracket. Screws are so tiny that aligning them just using screw driver is tough. Use tweezers to correctly place the screw and tighten using screw driver. All functions seem to be working fine. Thanks for well documented instructions.