Samsung Galaxy S4 Mini Android 5.0.2 Lollipop Rom Update: GT-I9190/GT-I9195

Prerequisites (Things to remember before installing the CyanogenMod CM12 Nightly):

1. Users are advised to update their third party addons to ensure compatibility


2. The CM backupscript.sh in recovery will ignore and remove
   incompatible applications from your system partition (these are usually
   non-CM apps that users have opted to install). You must install a
   compatible app (or app pack) to regain that functionality


3. You can flash CM12 nightlies directly from CM11 M12 or CM 11
   nightlies (no need to wipe), provided you read and followed items 1 and 2


4. Once on CM12 nightlies, you cannot downgrade back to CM11 without
   wiping – if you are thinking of just exploring the release, then take a
   backup of your existing installation if you want to go back to it.


5. Users must install Lollipop OS compatible recovery before installing the new CM12 custom ROM.


6. Make sure the device is rooted before going forward for custom ROM installation


7. This new CyanogenMod CM12 Android 5.0.2 Lollipop firmware has to be
   installed on the OnePlus One model only ; if tried on other devices, it
   might get bricked [To check your device model: Go to Settings
   >> About phone >> model number]


8. Installation of custom ROM requires clearing of memory in the
   smartphone, so make sure to back all the data by installing Clockwork
   Mod (CWM) Recovery/ TWRP in the smartphone.


9. Users make sure you have installed USB drivers on the PC, or else
   your smartphone (OnePlus One) will not be recognised by the computer.


10. Make sure your device has more than 80% battery, or else there is a
    chance of smartphone getting temporarily bricked if the installation
    process is interrupted mid-way.

[Disclaimer: This procedure is very technical and
should be performed by a person with sound knowledge of rooting (or
manual software installation) Android devices.

How to Install
the Custom ROM on Sony Xperia Z

1) You have to have a Rooted Phone and CWM Installed in it.

2) Downloadable files:
CM12 Custom ROM for Galaxy S4 Mini GT-I9190 (serrano3gxx): HERE

CM12 Custom ROM for Galaxy S4 Mini GT-I9195 (serranoltexx): HERE
[Note: Build release-date: 19/01/2015]
Google Apps: HERE

3) Boot to CWM Recovery Mood ('Volume (up)', 'Home' and 'Power' buttons.untill The Recovery)

4) You Can Backup your Stock Rom ( CWM> Backup & Restore > Backup )

5) Now Follow This steps for flashing Rom

Wipe data/factory Reset

Wipe cache Partition

Mount & Storage/ Format System

Advance/ Wipe Dalvik Cache

Now Go Back

Install Zip From SDcard

Choose Zip From SD Card

Now Select your Custom ROM which You want to Flash

Then Wait Untill the Installation Finished

Then Reboot Your Phone

Done   

Users then head to Settings >> select About phone to confirm
the installation of CyanogenMod Android 5.0.2 Lollipop custom ROM.

Credits For The Rom
CyanogenMod.Org

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