Update Galaxy S Plus I9001 to CM12 Android 5.0 Lollipop Custom ROM

If you own a low-end device and looking for a way to see how Android 5.0 Lollipop looks on your device, or if it would have been released for your device, how much of a change will it bring, CyanogenMod 12 is the best option available right now. Developers are still working on a release a stable version. If we look at the past, alot of low end devices have received the CyanogenMod 12 update, whether from the Official source or an un-official one, the only difference will it make is the support, the Official will keep providing the support and the un-official source will end with the release.

Samsung Galaxy S Plus was released in 2011 with a lot of low end specs, like 512MB of RAM, 1.4GHz processor and the last update for it was the Android 2.3 GB, and now thanks to the XDA Member Christopher83this device is being updated to the latest version of Android. In this Article, we will show you How to Update Galaxy S Plus I9001 to CM12 Android 5.0 Lollipop Custom ROM, but If you are interested in Other ROMs, you can Visit our Custom ROMs section or you can install this ROM on your Galaxy S Plus I9001 by following our tutorial below. This is not an official release from Samsung but a Custom ROM. You need to install a Custom Recovery on your device to install this. Your device must be rooted. Let’s go through the ROM features and early preparations and then flash this ROM.


Early Preparations:


The methods involved in flashing custom recoveries, roms and rooting your phone are highly custom and may result in bricking your device, and has nothing to do with Google or the device manufacturer that is SAMSUNG in our case. Also rooting your device will void its warranty and you will be no longer eligible for any kind of free device services by the manufacturers/warranty providers. In case of any mishap we may not be held responsible. Follow these instructions to the letter to avoid any mishap or bricking. Make sure that whatever you do, you are doing it at your own responsibility.

Downloads Required:

 CM 12: Link

Google Apps: Link

Installation Process:

  • Connect your device with PC.
  • Copy and Paste the Above zip files to the root of your sdcard.
  • Disconnect the cable.
  • Turn Off your Device
  • Open Recovery mode. How? Press and hold the Volume Up + Home + Power buttons until you see some text on screen.

CWM/PhilZ Touch Recovery Users.

  1. Back-up your ROM using the Recovery.
  2. To Perform a Back-up, Navigate to Back-up and Restore on Next screen, Choose Back-up again.
  3. Go back to Main Screen after the Back-up is complete.
  4. Then Navigate to ‘advance’ and choose ‘Wipe Dalvik Cache’, so you won’t get in any bootloop.
  5. Finally Select Wipe Data/Factory Reset
  6. Navigate to ‘Install zip from sd card’ another windows will open in front of you.
  7. Select ‘choose zip from sd card’ from the Options.
  8. Select the CM 12.zip file and confirm the installation on next screen.
  9. Once the Installation is Over, Select +++++Go Back+++++
  10. Select Reboot Now to Reboot the System.

TWRP Users (Recommended)

  1. Tap On Back-Up and Select System and Data
  2. Swipe the Confirmation Slider
  3. Tap on Wipe > Advanced Wipe > Select Data > Repair or Change File System > Change File System > EXT4 > Swipe
  4. Now Wipe Devlick Cache and Cache
  5. Swipe the Confirmation Slider.
  6. Go back to Main Menu and Tap Install Button.
  7. Locate the CM 12.zip, Gapps and Swipe the Slider To install it.
  8. Once the Installation is Over, you will be promoted to Reboot System Now
  9. Select Reboot Now to Reboot the System.

Solve Signature Verification Error:

  1. Open Recovery.
  2. Navigate to install zip from Sdcard
  3. Navigate to Toggle Signature Verification and Press Power Button and See if it is disabled or not. Disable it and then Install the Zip without any Error.

First Boot might take up-to 5-minutes, so let your device rest for 5-minutes as you do something else.

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