the battery app report information suggested that the part needed replacement to optimise.
i've done several battery/screen replacements on iPhones.
opening the phone case took longer than expected. i found using my iSclack and the stabiliser attachment was a better fit than the single suction cup provided in the tool kit.
once that was completed, most everything went as planned.
i couldn't tell if the case had been opened before but,
a close inspection revealed that the (oem?) water seal was not installed very well and dust had accumulated at the top of the device. there was also a loose screw inside the case. (watching a replace video on youtube, the presenter also found an/extra loose screw in his device). is this a factory assembly phenomenon?
my installation of the seal failed. i will get a new one and try again.
editing some of the step by step processes might need to happen for continuity.
otherwise, pleased with them.