I offer a small insight into data recovery from a damaged phone Coolpad E560. The phone could not be turned on. Due to the damage of the board, the ISP connection did not work. The eMMC chip was desoldered. I verified the ISP connection pinout and provide it below.
Received the hard drive WD10EALS from the Video Surveillance System Rifatron SH-1648. Issue - drive can't detect in a DVR nor on a computer. Information was that a weaker power supply was connected to a DVR device, which has an external power supply.