I ordered a replacement kit off of eBay for about $4 and some change. The pentalobe screwdriver worked great. The driver for the battery connector sucked. It would not work. It just didn't fit, and it may have damaged the screw head. I order the ph000 driver from iFixit and it worked great. There is a $5 coupon code (do Google search), and the $10.95 (item + shipping) came out to $5.95. Someone elsewhere said a precision screwdriver set from Dollar Tree worked, but as the head may have been damaged, I just went with the iFixit driver. I was able to change the battery, but am still running into snafus. Initially, the phone booted into ??DFU. The screen said plug into iTunes. I tried the other original battery. Same thing. It finally booted normally, but it was stuck on searching for signal. No cell signal was shown. After putting in the new battery again, it finally booted somewhat normally. The batter percentage showed 73%, which didn't make sense as it was nearly empty moments before.