is: Complete fresh install.
I did one week ago: From /e/ V2.2 to FP4-TP2G-factory (just for an 1 hour) and then fresh /e/ V2.2.
I had 2 years only 30-40% of the battery time like before after an /e/ OTA update in July 2022.
Now again are 48h use easy possible… (no special tricks)
The reference for me: 100% charging to midnight. Sleep, phone on, but nothing to do
now in 8h 5-7% less capacity. Before 20-30%.
I am not sure about the FP-OS install: Necessary? Maybe for firmware, maybe not.
[I don’t think it was an app thing, see closed thread]
(I found my first complaining from Jul 31, 2022: e/OS problems on FP4 - #6 by Olli_GT - Fairphone 4 - Fairphone Community Forum )
A nice user told me, both Faiphone and /e/ provide Firmware updates (via OTA, too).
So the theory of missing firmware updates is wrong (Or it didn’t work correctly ?)
It looks like OTA updates are sometimes not “the real thing”.
Now I will wait after every new update a few weeks.
Yes, I know … But I have not the energy and time for this anymore.