This required to install CarbonRom KitKat (4.4.4) for Samsung Galaxy S4 Mini Duos 

(see torrent http://thepiratebay.ee/torrent/10417757/CarbonRom_KitKat_(4.4.4)_for_Samsung_Galaxy_S4_Mini_Duos)


Installatoin:

Before you install CarbonRom: 
Preparation (First three are optional. If you want to start fresh, these can be skipped)
Install AppBak from Market, run it and save a list of all your apps.
Install SMS Backup and Restore from Market, run it and backup your SMS history.
Install Call Logs Backup and Restore from Market, run it and backup your call log history.
Boot into ClockworkMod recovery. Make a full backup. You will need this backup later if you decide to go back to your previous ROM and data.
WARNING: Many apps will Force Close crash if you restore data from a previous ROM.

Install one of custom Recovery:

philz_touch_6.41.6-serranodsxx.zip
philz_touch_6.41.6-serranodsxx.tar.md5 - from ODIN install
cwm_recovery_6.0.4.8-serranodsxx.tar.md5 - from ODIN insatll
cwm_recovery_6.0.4.8-serranodsxx.zip
custom_twrp_jb_kk_v2.7_stable_i9192.zip
custom_twrp_jb_kk_v2.7_stable_i9192.tar.md5.zip - from ODIN install (need unzip)
Warning: Only use this recoverys to flash ROM. Otherwise, you risk bricking your phone!

Wipe data and cache.
Flash CARBON-KK-UNOFFICIAL-****-serranodsxx.zip.
Flash *gapps*.zip. You must flash gapps after every upgrade to CARBON-KK-UNOFFICIAL-****-serranodsxx.zip since /system is formatted, wiping your previous add-ons.
Reboot phone.
After you setup your Google account, reinstall the three apps from Market in order to restore most of your apps, call log and SMS history.
Warning: Do not restore backup data of system apps!
If you restore a bad backup with cached settings in telephony.db in data/data/com.*.*.telephony it can break MMS.
It seems that restoring backups can also break Calendar sync.

Upgrades
Upgrades from previous versions of CARBON-KK-UNOFFICIAL-****-serranodsxx.zip are the same process as install, except you do not need to wipe anything. Contrary to popular belief, you do not need to even wipe cache and dalvik-cache when upgrading between CARBON-KK-UNOFFICIAL-****-serranodsxx.zip versions. You only need to wipe if you are doing a major upgrade, switching to a different ROM entirely, or attempting to fix bugs caused by bad backups or corrupt app data.