Nougat can be called a vintage build?
the Spreadtrum SC9830A kind - tested on a J320FN. There’s also a msm8916 variant, but this isn’t for it. I haven’t built yet for SM-J320F/G/M (j3xlte).
Build from the v1-nougat branch with lineage/cm-14.1, the last version this device saw a release for on XDA. Apart from the proprietary files one needs two fixes on a patch script in the vendor and the kernel if someone retries.
see roomservice.xml for nougat
Basic functionality is there, but of course no VoLTE.
download: e-0.21-n-20221123-UNOFFICIAL-j3xnlte.zip via transfer.sh, lasts ~ 2022-11-30 +7 days
md5sum: 70ed8d4694be30143a3c0cb5764ec46f
had problems uploading with Androidfilehost so I put it here: this will last from a few days to a week max. Can reupload anytime someone pulls the device out of a drawer or until AFH works again.
Install: boot into twrp 3.1.1 or flash it to the recovery, then use the sideload method.
I’ll try to improve a little bit on it and update the thread - at least on the Webview and possibly microG. It’s just for fun though, no one should rely on a Nougat build.
Bugs: there’s a little quirk with Mail activity surfacing 2 times in the launcher. A bug in the Apps manifest. Can be removed via sqlite query on bliss’ database.