SGH-i257: custom ROM for upgrading

sequeens

New member
Mar 23, 2020
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Hello:

As this is my first posting, I hope I'm doing it correctly:

I have a Samsung Galaxy S4 Mini SGH-i257 (AT&T version). The unit is both unlocked (open lock symbol appears on the screen at each start-up) the unit is also Rooted I have Root Explorer, SuperUser, & APK Installer in my Apps. I want very much to upgrade the unit from KitKat 4.4.2 up to at least Lollipop or Marshmallow, so I am able to use several Apps. that are not compatible with KitKat.

Can someone provide me a link for the proper custom ROM?
 
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