Yet another connectivity issue! An extensive one.
My FP2 (in use since 2015) has had connectivity issues for about half a year now. Not just wifi or mobile data but both: every hour or so, I loose internet connection, regardless whether I’m on wifi or mobile data. Sometimes it resolves spontaneously after a few minutes, sometimes a switch to flight mode and back resolves the problem, but most often, a system restart is required to restore connectivity (which drains the battery terribly). The weird thing is: even while connection is down (e.g. I cannot open webpages and apps complain about a lack of network connection), the connectivity indicators in the upper right corner appear normal : a (nearly) filled wifi icon and a filled triangle that says ‘LTE’ for mobile data. The problem seems quite similar to this: Very poor network connectivity, except that mine is not limited to mobile connection.
The network issues usually occur right in the middle of things: often while I’m lazily surfing the internet (suddenly can’t open the next page) but also right in the middle of video calls, both at home and on the road. To illustrate the inconvenience, in the last few weeks it occurred 1) while retrieving a train ticket I just purchased in an app (I knooow I should do that before boarding the train), 2) while trying to show a tram ticket (different app) to the ticket inspector and 3) in the post office while trying to use a mobile ticket to send a package. Seems my phone just doesn’t like tickets.
Connectivity in general has always been poor; at work, for example, I don’t have wifi/data/mobile connection in places where others do, and regular phone calls indoors quite often fail. Mobile data transfer is usually slow. This lead me to believe I might have an antenna problem, similar to what others describe, but I don’t know much about hardware: do all of these connections (wifi/phone/mobile data) share the same antenna, the one flanking the battery? Apart from hardware, I could image such issues being caused by the OS as well.
- LineageOS 17.1 version 13-11-2020 + openGApps pico
- located in Belgium, mobile provider Mobile Vikings
Fixes I already tried that did not help:
- clean LineageOS reinstall
- upgrade LOS from version 16 (Android 9) to 17 (Android 10)
- switch from MicroG to OpenGApps (pico)
- religiously installing weekly LOS updates hoping for a magic fix
- playing around with router settings (2.4 GHz only, 5 GHz only, dual band) >> I assume our router is not the problem as I experience the same wifi issues at work and at other people’s places, and the connectivity issues are not limited to wifi.
- disabling power-saving modes
- enabling/disabling wifi scanning for locations, then turned it on again for Coronalert app
- turning Blokada on/off (and completely deinstalling the app)
- monitoring network connectivity using the F-Droid “Network Monitor” app >> Ironically, it shows an error and pauses log collection during network failures.
- cleaning contacts as described here: Bad radio performance caused by oxidation and scratchmarks on display module backside contact pads >> Seem heavily scratched and quite some black oxidation came off - maybe a moisture issue due to taking my phone along on a 12 km bike ride to/from work twice a day? I obviously don’t handle it in the rain, but some moisture might occur.
- borrowing a T5 screw driver from work to check the antenna as described here: How can I reconnect loose antenna cable >> No visible damage, cable firmly connected at both ends.
…and now I’m at a loss, I don’t know what to try anymore. Would anyone have any suggestions to what the issue might be? If people that are more technical than me (@ar.do?) think this might indeed be an antenna issue, i could try to get my hands on a new cable and fix it like this: How can I reconnect loose antenna cable. But I’m in doubt as the cable looks undamaged. If there’s moisture damage or internal broken connections (due to rough use?), repairability might not be superb.
Last week, the main microphone in my bottom module broke down as well (again, third time) (could well be due to moisture or me dropping my phone). As I’d love to be able to call people during covidtimes, this makes my problems a bit more urgent. I’m basically wondering whether it’s worth spending another €30 on a bottom module in the hope my connectivity issues will get fixed, or whether I should get ready to part from my FP2 and get a new (FP3 or refurbished) phone… Open to any suggestions and thanks in advance for your help!