Samsung Galaxy S4 Mini has just received support for Android 6.0.1 Marshmallow upgrade via TeamUB custom firmware. TeamUB is packed with a lot of custom features and tweaks not mention it being stable.
Samsung Galaxy S4 Mini phones with model number I9190 can now proceed to Android 6.0.1 Marshmallow by installing the TeamUB custom ROM. The firmware is vowed to bring in useful custom features on top of new tweaks and enhancements.
Before proceeding with the installing, keep in mind the following reminders and prerequisites:
1. Do not use the ROM to any other device.
2. Install TWRP Recovery here.
3. Back up all necessary data here.
4. Download a driver here.
5. Installing any custom ROM induces risk of damaging device. Neither this site nor developers of the TeamUB ROM will be held responsible for such damage.
Here is a step-by-step guide to install Android 6.0.1 TeamUB Marshmallow to Samsung Galaxy S4 Mini I9190:
1. Down load Android 6.0.1 TeamUB ROM here and GApps here on PC.
2. Connect phone to PC using the USB cable.
3. Copy downloaded zip files from PC then paste to phone's memory or SD card.
4. Switch off device and plug it out from the PC.
5. Go to Bootloader Mode by press holding volume up and down and power buttons together.
6. Select 'Bootloader' then go to Recovery.
7. Choose 'Wipe' to delete of data and 'Wipe Cache Partition'.
8. Go to main menu and choose 'Install zip from SD card.'
9. Select 'Choose zip from SD card.'
10. Repeat process for GApps.
11. Wait for the installation to complete.
12. When phone gets into any boot loops or other troubles, tap 'Wipe cache/dalvik' button.
13. Choose 'Reboot System'.
Check the software version now.
