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And yeah, it's a Galaxy 4. I've kept it so long because I'm a firm believer in "if it ain't broke," but I think we're looking into broke territory if it leaves me worrying about vulnerabilities.
It appears to be broke. I say throw cyanogenmod on it; at least that'll get you up to Android 6. I damn near went this way. I had a Oneplus One and aside from weirdnesses (you could not do a screencap on it for some dumb reason) it's a great little phone. Especially now that their whole Oxygen/Cyanogen dustup is in the past. Instead I discovered that T-Mobile would credit me $350 for having a Pixel so that was a no-brainer.
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