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Update Galaxy Nexus I9250 with Stable Android 5.1.1 Lollipop ROM

Samsung Galaxy Nexus was indeed one of the best Android based smartphones ever made. But, due to limited hardware performances the phone is no longer compatible with recent Android updates. Thus, if you still own the Galaxy Nexus and if you aren’t planning in buying a new device soon, I have something that might interest you: what would you say if you would be capable of using Android 5.1.1 Lollipop OS on your own Samsung Galaxy Nexus?

I bet that I managed to arouse your attention. If so, then you should read all the lines from this step by step guide as I am about to teach you how to manually update your Galaxy Nexus I9250 with a stable and smooth Lollipop software. Of course I am not talking about an official Android update, because that’s really not possible. Instead I am talking about a new custom ROM platform which has been successfully optimized and customized for the Nexus I9250. Therefore, if you really want to improve the performances of your device, don’t hesitate and complete this flashing procedure.

What can you obtain? Well beside from using the latest Android Lollipop platform you will also be able to enjoy better hardware performances (the RAM consumption will be optimized, the CPU power increased and so on), increased speeds and an upgraded battery life. Of course, new Lollipop features, apps and processes will be added and everything will smoothly run on your “outdated” Nexus branded device.

So how is it all possible? Thanks to those of xda-developers we now have a new custom ROM firmware, based on stock and pure Android 5.1.1 Lollipop firmware, compatible with the Samsung Galaxy Nexus I9250 smartphone. The Rom that I am talking about is non-other than SlimLP, a great choice if you are looking for the latest features and capabilities that are currently available on the market. The firmware is also based on CyanogenMod and on other similar platforms, thus you will receive mixed processes and improved performances.

As mentioned, the ROM is stable and will smoothly run on your Galaxy Nexus – the users who have already flashed the firmware hasn’t reported any bugs, lags or any other software related issues. However, in order to make sure that everything goes as planned, before doing anything else you should make a Nandroid backup. In this way you can now save the current ROM that powers your phone; afterwards, if the SlimLP ROM will not be on your taste, you can use the Nandroid backup for downgrading your Samsung Galaxy Nexus back to stock.

Of course, completing this guide implies in performing an unofficial operation – the warranty of your smartphone will get void and the steps from below can be completed only in certain conditions. So, the best will be to learn how to manually troubleshoot the most common Android related issues before heading towards the proper flashing process from below. Then you can successfully try Android 5.1.1 Lollipop on your Galaxy Nexus I9250.

So, you can install SlimLP only if your Nexus is rooted and installed with a custom recovery image, like CWM or TWRP recovery (don’t use the latest version of CWM recovery though as it seems that the software is not compatible with the Lollipop Google Apps package). Root access is a must as the Android 5.1.1 Lollipop OS will have to modify and access in built and default features, programs, apps and processes. Also, the custom recovery image is not an option as the same software will be used on the flashing process – the ROM is offered in form of a .zip file.

Along with the dedicated Nandroid backup you should also make a general backup operation for being able to save personal data, info and accounts. Even though the backup is only optional, I strongly recommend you to complete it. During the update operation a hard reset will be required (else the ROM will not run properly on your smartphone) so the internal storage will be just wiped out. That’s why, without backing up your data you might end up in losing contacts, call logs, text messages, internet settings, images, videos, audio files, market apps, EFS folder, IMEI / NVRAM data and so on – save everything you need easily by using dedicated backup and restore apps from Google Play, a cloud storage platform or a computer.

The update package from below must be first downloaded on a computer or on a notebook. So make sure you can use such a device. Also, on the same, temporarily turn off antivirus protection because security software might interfere with the download process. Then prepare your Galaxy Nexus for the update operation that will shortly follow: gain developer options by going towards “menu – settings – about phone” and by tapping several times on built number; then enable USB debugging option by heading towards “menu – settings – developer options”; and finally, charge your device before installing the Android 5.1.1 Lollipop OS – if your phone gets turned off in the middle of the update procedure, it might also get bricked.

A final thought: apply this tutorial only if you own the Samsung Galaxy Nexus model number I9250 – the SlimLP custom ROM based on Android 5.1.1 Lollipop firmware, which is available below, is currently compatible only with the mentioned device, so try not to mess things up in any matter.

How to Update Galaxy Nexus I9250 with Stable Android 5.1.1 Lollipop ROM via SlimLP Firmware

  1. The first thing to do is to get the required files; thus, on your computer go here and download the Android 5.1.1 Lollipop OS and here for downloading compatible Google Apps.
  2. Save both files on desktop and don’t unzip anything.
  3. Connect your Galaxy Nexus with your computer by plugging in the USB cable.
  4. Transfer the downloaded files on your phone and when done unplug the USB cord.
  5. Turn off your Android device and after doing so reach recovery mode.
  6. From recovery you have to clear cache and make a hard reset before resuming the update operation; so select “wipe data factory reset”, “wipe cache partition” and “wipe dalvik cache”.
  7. Return to main menu of recovery and this time pick “install zip from SD card” followed by “choose zip from SD card”.
  8. Get the Android 5.1.1 Lollipop SlimLP firmware file and install the update on your Samsung Galaxy Nexus.
  9. Repeat the last step and flash Google Apps package.
  10. When done, from main menu of recovery select “reboot system now”.

Congratulations; you have successfully updated your Samsung Galaxy Nexus to Android 5.1.1 Lollipop OS. Do test the new ROM and share your first impressions with us and with other users who might consider in applying this step by step guide – use the comments field from below in that matter.

Samsung Galaxy Nexus Articles

  • Leo Catapte Beloy

    No Pictures? or screen cap?

  • Dan Zilberstein

    can’t install gaps with it – not enough space in /System partition

  • GYFHAS

    ROM seems to install OK but setup fails with “Google play services stopped unexpectedly” message.

  • jan

    ROM seems to install OK but setup fails with “Google play services stopped unexpectedly” message. the same for me , any news about that ?

  • Gerard Jongbloed

    Android 5.1.1 installed all right, but the gapps failed to do so. Only some 12 or so apps are showing. This is pretty serious, because I don’t have access to Google Play!, Browser steps out after launch. E-mail OK. Can’t go into Recover mode…

  • Marcus Hedlund

    Everything installed properly, but cant get past setup, google services stopped unexpectedly loop, have tried probably about 30 different variants of gapps meant for everything between slimlp 5.0 and lollipop 5.11 and no luck with several mentioning not enough storage available. Any ideas that’ll help? And may be a silly question but is there a way to free up some space on the system, and if so, how? BTW I have a Samsung Nexus i9250, twrp recovery 2.8.7.0 and obviously above mentioned custom rom. Please any help would be immensely appreciated!!

  • Ace

    did anyone fixed gapps?