Installing /e/ on SAMSUNG galaxy S4 SC-04E (japanese model)

I think you are getting the hang of it @babulol, searching the https://doc.e.foundation/devices you have found the fairly wide range of Samsung S4 supported by /e/ but for each variant /e/ only supports the “Supported models” listed near the foot of each Info page.

SamsungS4

Another approach to searching is via the devicecode, as in “jfltexx”. The devicecode of a proposed device must be an exact match with the /e/ ROM you plan to use.

You can find your own devicecode with reference to [HOWTO] Find device codename and /or try using the Android app AIDA64 Download 1.85 (APK) | AIDA64, available free in reputable app stores.