The battery percentage behaves strangely nowadays: it decreases at a seemingly steady pace from 100% to 90% to 80% and so on, but the phone suddenly shuts down already around 60% or so. Se when it shows 70% it really means it’s time to change it before it dies.
I’ve seen this on one unit which was plugged into the charger almost 24/7 as well.
To me it seems that the battery calibration kind of “drifts” towards higher values (since that is where it is operated most of the time?!)
You can remove and reinsert the battery and it should reset the calibration.
If you then do a couple of 0-100% charge cycles it should be a lot more accurate.
Poor call audio quality. I can hear the other person fine, the problem is in the other direction: very often the person I talk to complains that they have trouble hearing me. Note that on the L5 end you will not notice this unless the person you talk to tells you.
I used to get complaints about there being an echo. Lowering call volume (or using a headset) helped.
Mobile data connection suddenly stops working. This happens fairly often, usually at least once a day. I suspect this is due to some kernel bug(s). It starts working again if I reset the modem and restart NetworkManager.
Is toggling the HKS not enough?