Why doesn’t /e/OS automatically switch from 5G to LTE when the screen is off or when the phone is connected to WiFi, like most other vendors do?
5G causes significant battery drain in standby especially overnight with my phone dropping from 100% to below 50% even while it’s connected to WiFi. This seems like something the system should manage automatically to improve power efficiency.
Do you mean the Fairphone stock switches from 5G to LTE when screen is off or when phone is on WIFI
I am not sure it the stock fairphone does this as i have never ran stock android on my fp6. I do know that samsung, apple, and xiaomi do this and probably most other vendors to. They do this because 5G is very powerhungry in standby.
Well, you could either turn off 5G (I don’t see the actual use on phone, 5G router at home different thing).
The other option would be in the developer settings to activate that when wifi is connected that mobile network turns off, that could also lower consumption.
Sounds like a workaround and not a solution to a very basic feature that should be in every OS. It makes no sense to blast 5G signals all the time when WiFi is on or the screen is off. It is very inefficient.
How do you know it’s blasting 5G signal when the WiFi is on?
When WiFi is on on my phone I cant see the tower type I am on until I turn the WiFi off…
Not only that but my phone goes to LTE quit often when I am on WiFi Check your preferred network settings.
Because the battery drains overnight by up to 50% when a profile which contains NR is activated. If you change it to LTE it only drains around 5%. You can also see it in battery info > system. So that already shows that the phone keeps an active NR connection even when WiFi is on or the screen is off. It will degrade the battery very quickly and it is a waste of power.
Dude cheers heaps for your post! I was banging my head against the wall since the /e/OS 3.1.1/A15 upgrade. I’ve been using the Motorolla Moto G 5G Plus on /e/OS for the past two and a half years without a hitch, e/OS worked perfectly on this phone during that time, I was very happy with /e/OS on this phone until I got that upgrade. After the upgrade my phone battery was draining like I had never experienced before, exactly how you described. Before I would come home from work with at least 50-60% battery left, after the upgrade it’s like 30-20% remaining. Then also the time it took to charge the phone was like double the time, but I noticed when the phone was turned off it charged super fast. I was waiting for the /e/OS 3.2 upgrade (this model couldn’t get the 3.1.4 upgrade), thinking that would fix the issue, then I read your post. When you mentioned the 5G drain, I noticed right away when the screen is turned off it is still on 5G, so I went into the ‘preferred network type’ setting and switched the setting from ‘Global’ to ‘LTE,’ as soon as I did that the phone seemed to be charging just as fast as it did before the upgrade.
I need to confirm when I take the phone to work tomorrow if the battery drain issue has been fully rectified (will leave it on LTE setting), but I got a feeling that indeed the 5G constantly activated was the issue.
I’ve noticed since the upgrade I hardly saw the LTE network on the screen whereas before the upgrade I would see it often. Maybe the older version did switch the wifi and screen standby to LTE and this new upgrade doesn’t? I am not sure, but what I am confident about isthat the 5G always on like your described was causing the battery drain.
In addition to LTE only, also disable automatic network selection. It made a significant difference on my FP6 under e/os 3.5.
Thanks for this topic! It helped a lot.
The battery lifespan has doubled since I:
Set 4G as the preferred network type
Deactivated ‘Mobile data always active’ in the developer options.
Deactivated ‘Select network automatically’
Cleared the cache of the apps using the most battery.
Deactivated mobile network for Instagram.
But still mobile network is using up to 98% of the battery at night. This is when I don’t use my phone and it’s in battery saving mode.
Any clue why the mobile network is still using this amount of battery?
I’m no expert but since you don’t use the phone, the only drain can come from mobile network and it would be perfectly normal. Even 100% of mobile network would be fine. The thing to look at is not really those 98% but how much the battery % drops overnight. If it drops by 1-2%, that is what you want. More than that and then you want to diagnose where those 98% come from. But if your battery drops by only 1% overnight, you basically don’t care that 98% of those 1% come from mobile network. Or else use airplane mode overnight.
It drops about 10-18% overnight. So that is more than I want it to be.
Is there Wi-Fi in this place? With Deactivated ‘Mobile data always active’ there should be no work for mobile data unless the Wi-Fi goes down; perhaps has its own energy saving mode ??
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