@Üszögh-Dávıd I tried it some days ago. That mod is an “A” firmware , purged of chinese apps, with the addition of xposed framework, flyme tools, root, busybox, xperia keyboard , titanium backup and some ram improvements. Installing it I lost italian language, being an “A” firmware, so I preferred to go back to stock.
@Üszögh-Dávıd it’s working fine, but it installs the “a” firmware, not the international one “i”.
For the installation, you download the archive, extract it, then execute the exe file and do the steps from 1 to 4. If you don’t understand something in the tutorial, just use a translator.
@Üszögh-Dávıd the problem is that if you have an “i” version, after installing the mod you have an “a” version, with all the consequences. For example I lost italian language and it switched to english.
The developer wrote that installing the mod will not interfere with OTA updates.