If you’re looking for a real sync solution you may try our app DAVdroid. You need to set up a CalDAV server first. Then you will be able to synchronize your calendars in two way. DAVdroid is open source and it published under GPL and we also sell it in the Google Play store, because it was and is very hard work to write and maintain it.
ICS Droid sets sync interval to "manual"
using ICSDroid on my Samsung Galaxy A5 (2017) with Android 7.0 and “Samsung Experience 8.1.” for a while now to sync a calendar.
For several months now, it seems like ICSDroid is “resetting” the sync interval to “manual”. Every time I set it two say “two hours” it works as expected for a week or so, then all of a sudden I realize that that the interval is set to manual without me changing it.
Can someone help?
Did you try to whitelist ICSdroid from “battery optimization”?
We have found that “Maximum power saving mode” resets app sync intervals.
Can you have a look at https://www.davdroid.com/faq/automatic-synchronization-is-not-run-as-expected/#c249 (Maximum power saving mode) and tell us whether this describes/solves your problem?
I have icsdroid 1.5.4 on android 7.1.2 (Resurrection Remix ROM) on ZTE Axon 7 hardware. When I try to save the sync interval, I receive a message “Autosync disabled”. I have not found a way to set the interval or to even manually get icsdroid to sync (to a calendar feed without need to login). I have removed icsdroid from battery optimization (set to “not optimized”). App has calendar permissions. Even when I also give storage permission, it still does not save the autosync interval. What else can I do?
Maybe you can look into the Android Settings / Accounts / ICSdroid and maybe there is an option to enable Auto-Sync…
ROMs are very different sadly - everybody is cooking its own soup so we don’t know all devices. In the basic unbranded Android there is a sync button in task navigation - maybe you have it too and it is switched off.
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I’m using ICSx5 1.8.4 on LineageOS 15 and still have this problem. Sync interval is continually reset to “manual”.
I have put ICSx5 in the “not optimized” section of the battery settings. The optimization isn’t set to “extreme” (these are probably not the right terms, I’m translating from French). Why isn’t ICSx5 able to run semi-periodically without being reset ?
@xav Works here without problems. If you find out the reason, please let us know… do you use any other battery saving apps, battery saving mode etc.?
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@rfc2822 well nothing that I know of. I tend to be rather conservative on what I install (mostly F-Droid stuff).