I’m not a developer and the developer of the Grand Prime series at XDA has not updated sources since years…You might try to update to latest available firmware for this device
Final update for /e/OS-R 2.2:
e-2.2-r-20240719-UNOFFICIAL-fortuna3g.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-fortuna3g.zip/download
e-2.2-r-20240719-UNOFFICIAL-fortuna3gdtv.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-fortuna3gdtv.zip/download
e-2.2-r-20240719-UNOFFICIAL-fortunaltedx.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-fortunaltedx.zip/download
e-2.2-r-20240719-UNOFFICIAL-fortunalteub.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-fortunalteub.zip/download
e-2.2-r-20240719-UNOFFICIAL-fortunave3g.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-fortunave3g.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimelte.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimelte.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimeltespr.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimeltespr.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimeltetfnvzw.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimeltetfnvzw.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimelteusc.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimelteusc.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimeltexx.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimeltexx.zip/download
e-2.2-r-20240719-UNOFFICIAL-gprimeltezt.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/SamsungSmartphones/e-2.2-r-20240719-UNOFFICIAL-gprimeltezt.zip/download