Samsung will no longer providing Software update to Samsung Galaxy Express that is running on android kitkat.But thanks to XDa devs for porting unofficial Cm1 3 rom for Galaxy Express android marshmallow 6.0 rom.Now you can Update your galaxy Express to Android marshmallow by installing Cm13 rom in it via any custom recovery.The Cm13 firmware for galaxy Express is in beta stage so you get some bugs in it.So far these bugs are detected in Cm13 rom for galaxy Express lte GT-I8730/T.
#Bugs!
-NFC, as usual, no source is available
-Probably some apps, maybe the whole OS can’t write to SDcard (Might be only a permission setting?)
-FM Radio not implemented yet
-Offline charging, not implemented yet
-Mic might not work on external apps, but works on calls
#Prerequisites
1.Your device must have Custom recovery in it(CWM/TWRP)
2.Make sure to make backup of your current rom.
3.Please follow XDA thread for updated bug list and new rom update.
4.Make sure your device model is only GT-I8730/T.
So if your are good with the bugs and want to install Cm13 rom in your galaxy Express, then you can follow below step by step on How to Install CM13 rom in Galaxy Xpress.
#How to Install CM13 rom in Galaxy Express
1.Download Cm13 rom for Galaxy Express and gapps 6.0.zip file from the link given below in download section.
2.Now paste both the file in your device memory and reboot your device in too recovery.
3.After rebooting to recovery flash CM13 rom from it and then flash Gapps6.0.zip.
4.Clear cache,Data and Factory reset your device
5.Now reboot your device done!
6.Enjoys Android marshmallow 6.0 in your Galaxy Express.
#Downloads
1.Download Cyanogenmod 13 rom for Galaxy Express.