Appreciate the “19” steps but timing is waaaaay off! Started at 1:50pm, took till 3:25 just to remove the rear cover (using the iopener)! Took another hour to get the battery out! Battery back in at 4:50pm - after cleaning off the glue. Took till 5:45 to clean the glued areas of the phone, ready for the new back cover. By the way, as I was using a new replacement cover it took 30 minutes to remove finger-print sensor, clean off the glue and re-install it on the new cover. Complete re-assembly was completed at 6:23pm. Tested okay by 6:28pm. of note |I did have all the necessary IFixit gear! So successful install was completed in just over 4 1/2 hours!