Home Forums Digital Home & Smartphones Help Open Source for mobile phones Forum Rules | Contact Forum Editor | Report a Post Open Source for mobile phones GB-UK 11:54 30 Jun 2018 Locked As an alternative to the usual mobile phone operating systems, I am seeking an Open Source for mobile phones. > Which Open Source operating system would be useful on mobile phones requiring few apps? (For example: eMail, short notices/messages, calendar,) > Would one still be able to access SIM cards previously used by an Android phone? Thank you. lotvic 12:39 30 Jun 2018 6 Open Source Mobile OS Alternatives To Android in 2018 click here This thread is now locked and can not be replied to.