Rooting and upgrading Samsung Galaxy S3 mini GT-I8190N to Android 5.1.1 (CyanogenMod 12.1 ROM)

Enter Android system recovery:

1. Turn off your phone.
2. Disconnect it from the computer.
3. Press keys: Power + Volume Up + Home and turn on the phone.
4. Release the keys after producer logotype appears.

or
Connect smartphone to the computer and issue following command: adb reboot recovery

Enter ODIN/Download mode:

1. Turn off your phone.
2. Disconnect it from the computer.
3. Press keys: Power + Volume Down + Home and turn on the phone.
4. Release the keys after information about activating ODIN/Download mode appears.
5. Press Volume Up key to confirm activating ODIN/Download mode.

TWRP installation

1. Disconnect your phone from the computer and turn it off.
2. Next enter the ODIN/Download mode as described earlier in the tutorial.
3. Run Odin.
4. Connect the phone to the computer.
5. Extract file GT-I8190_TWRP_2.7.0.0.tar.md5.zip once in order to get the file:
   GT-I8190_TWRP_2.7.0.0.tar.md5 and load the file using PDA button.
6. In "Option" section on the left hand side of the Odin's window select option: "F. Reset Time". All remaining options make unselected.
7. Click "Start" button and wait approximately 2-3 minutes for flashing new recovery. Wait until it appears the text PASS! on the green background in the left top part of the Odin's window (During flashing the area should contain text RESET! on the blue background).
8. Turn off the phone.
9. Enter the Android system recovery (now TWRP), to make sure that all went successfully.

Installation CyanogenModa 12.1 basing on Android 5.1.1 on your smartphone

1. The CyanogenMod 12.1 image file you can download from the site: http://novafusion.pl/downloads. To do this, select "Samsung Galaxy S3 Mini" option in the "Select device from list" selectbox and select "CyanogenMod" from the "Select software from list" selectbox. From the list with available software click the download link to the right of "Lollipop 5.0.2 (CyanogenMod 12.0) 20150428 stable". This link makes you to download: "Lollipop 5.1.1 (CyanogenMod 12.1) 20160412 stable" - and this is what we want do do.
2. Next from the same site select item "Google Apps" in the "Select software from list" selectbox. Click the "Download" link and in the form that appears select following options: Platform - ARM, Android - 5.1 i Variant - stock.
3. Connect phone to the computer and using adb tool copy downloaded files to the sdcard of your device: adb push cm12.1_golden.nova.20160412.zip /sdcard/
adb push open_gapps-arm-5.1-stock-20160423.zip /sdcard/
4. Restart smartphone to the TWRP recovery, as below: adb reboot recovery And turn it off from the computer.
5. In TWRP recovery select options:
   Wipe -> Advanced Wipe -> Cache, Dalvik Cache and drag the circle "Swipe to Wipe" to the right.
   Next drag to the right circle: Wipe -> Swipe to Factory Reset
6. In the main menu click "Install" button and choose the file: cm12.1_golden.nova.20160412.zip
   Check the option "Zip file signature verification" (if it was not checked already) and drag the circle "Swipe to Confirm Flash" to the right to confirm operation.
7. When the flashing process successfully finish, repeat 6th point once again but for file: open_gapps-arm-5.1-stock-20160423.zip
   It will install Google applications (among others Google Play) for your smartphone.
8. Restart the phone by clicking "Reboot System" button and wait for the system to configure and optimalize. It can take up to approximately half an hour so be patient.