I installed Lineage OS 14.1 on my completely wiped FP2 yesterday. I followed the instructions that included flashing fairly new modem files. However, the “proximity sensor drains battery” bug seems to be back: I notice a CPU wakelock that drains the battery quickly when apps like “WaveUp” that use t…

Try the new modem files: [image] LineageOS 14.1 with OTA updates for FP2 Fairphone 2 Also put a new modem zip ( SHA512 ) on the buildserver. When you have strange behavior with SIMs / reception / networking or other radio-related stuff, you can update manually through TWRP. …

They don’t work. My phones battery was completely flat this morning :frowning:

You can try the oldest modem files that are available here: https://fp2.joutubes.nl/builds/full/ Maybe these will fix the drain. No idea if anything else will stop working. Just put the newest one on your SD-card as well so you can revert back easily.

Hurray, the annoying battery drain / wake lock is gone after I upgraded my FP2 to the official Lineage OS build and modem-17.09.03. I am using WaveUp again and everything works like a charm without draining the battery.

Lineage OS 14.1 proximity sensor bug (wakelock) - do old modem files work?

Help Fairphone 2

snevas August 1, 2017, 1:54pm 2

Try the new modem files: