Galaxy Nexus Slow After Android 4.2 Update


Galaxy Nexus Slow After Android 4.2 Update

Android Jelly Bean

I've had my Samsung Galaxy Nexus for a little over a year now.

I've received updates from Samsung from Ice Cream Sandwich, to Jelly Bean. However, a recent OTA update for Jelly Bean to Android 4.2.1 left my phone sluggish and frustrating to use.

I'd read some of the reports here, and here, and decided in the end that I was ready for something a little more drastic.

I've been meaning to update the firmware in my phone, from yakjuxw, to yakju in order to receive updates directly from Google. And so that's what I did, following the steps below, and as described in the very helpful links included:

1) Enable USB debugging mode by following the instructions here.

2) If you're going to flash your phone from Mac OS X as I did, download Fastboot from here. You'll also need to be sure you have the Android File Transfer app for Mac OS X installed.

3) Then download the Android Jelly Bean 4.2.2 firmware image from here.

4) Follow the excellent instructions here, although after unlocking the phone, I simply ran flash-all.bat which is included in the Google image package downloaded in 3) above.

I also made sure that my Google account was being backed up to Google - Settings -> Backup and reset -> Back up my data. With this enabled 'before' I flashed the phone, all of my apps were available via Google Play after performing the update. They all downloaded and reinstalled fine.

My Samsung Galaxy Nexus is now an Android Jelly Bean 4.2.2 phone with OTA updates coming from Google, and the phone is nice and fast and buttery again...





Not only slow but also lost some apps and some important files!! I face another problem that reduced battery during updating. Thanks for sharing Bouch.

Probably it wasn't a problem with android version, but with a defect on your phone, like mine. If your phone emmc is V3U00M and production date is 08/2012 or 09/2012 or 10/2012, you have the problem and the phone will turn slow again the more you use it... You can get some more info here:

Thanks Mario - I had no idea. Although in my case, I'm only using about 2GB of storage and so haven't come close to the amount of data that appears to be required to trigger the problem. Still - very interesting, and good to know.

My Samsung Google Nexus S is fast now after the following Technique. In settings menu, go to developer options, go to Background Process limit, There you will see that Android by default is set to the standard limit. You can now change the settings to the number of apps you want running in the background on your device to 2. Generally, it's better to have 2-3 applications running in the background for balance. Try it!