As I said in response to @jojomen I looked there too, but nothing
Beyond any doubt C2 needs a factory reset button in Settings for the future. I do not own a C2 but reading this thread leads me to the conclusion that C2 doesn’t have a factory reset button at the moment.
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Exactly. Not yet, but it will come in the future (next relaease?).
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Seem a bit like a problem I had, except that I could download the update once but the installation failed and broke something. After that the phone announced that there is an update available, but when trying to initiate download, operation just time out with connection error.
I put one in the day after you, still haven’t heard back yet.
Hi Folks, I wonder as I’m reading your writings in this topic. I have the C2 fully charged before switching it on first time. I had no problems with WiFi connection, changed the language to Hungarian, entered the security code, found the needl, inserted the SIM-card and tried to make an ordinary phone-call. Outgoing calls, 4G mobile-data connection are OK, but I do not see or hear anything in case of incoming calls. While the caller hears the ringing tone as usual. There is no entry in calling list as well. If I place back the SIM into my old phone, it operates normally.
Has anybody got the same experience with C2? What could be the reason/how could I fix it?
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Have you tried to switch to 2G or 3G in the Network Settings. Jolla C2 has Problems with 4G calls atm.
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Yes I have a similiar experience in Germany. Now I can use the phone for calling and mobile data just with the 2G option in the settings for mobile internet. 3G and 4G are not working properky, there you can have mobile data and you can just call out, but incoming calls are not possible. Even ringing tones for calling and alarms are not working regulary, just sometimes and I configured and changed different ambiences …
But I must confess that web surfing on 2G is in some way in Germany possible just with Jolla and of course the C2, where on Apple iOS or Google Android with 2G just phine calling is working, I can chat via Telegram or get and respond Mails or even how I mentioned googling or Discord Web are working very fine and so you don’t need 4G and so I can use bow my C2 indeed somehow as a daily driver …
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My C2 also change ambiences as it will. Stange.
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Today I got the answer via zendesk: “the next OS release 5.0.0.28 exists and is being tested. However, it does not fix the issue with the 4G phone calls (whereas 2G and 3G do work). We keep fixing the issues.”
Honestly I should say using my phone on 2G (3G has been out of order in Hungary) is not an option for me…
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I had the same answer, I will see what this version fixes, if mine still acts erratic around WiFi I’m afraid It’ll be heading back to Finland in exchange of my money back…
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I’ve added my thoughts about the C2 in the Forum , here.
unfortunately i encountered some problems after the first start. system installed and updated perfectly, however…aurora store does not work, as well as f-droid. i can’t set up nfc and unlock with the fingerprint and not even restore the phone to factory conditions. can someone help me? Thank u
i am sure, all this problems will be fixed in the next month with new sw versions.
but till there, i am affraid c2 cant be used as a daily driver.
Aurora and f-droid work ok for me, try to restart them, maybe restart app-support? I am not sure C2 has enough h/w for nfc or fingerprint functionality unfortunately ;-(
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You updated to 5.0.0.21?
sure, update done and I tried to restart Aurora, F-droid and app-support too
If you install f-droid from https://f-droid.org/ it works - as opposed to installing it from the Jolla store. With F-Droid, you can search and install Aurora.
That worked for me
C2 has no fingerprint reader 
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unfortunately it doesn’t work…always same error, it says there is no internet connection, but in reality it is not so… the browser works correctly. the same problem in the system update tool, "no internet connecti9n…suggestions?