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Manually Update Samsung Galaxy Express to Official Jelly Bean 4.1.2 XWAMC4 OS

The Galaxy Express is a mid-range smartphone that comes with decent specs and features, and with a design that is quite similar with the Galaxy S3 one. Unfortunately, the handset is bringing the already outdated ICS platform instead of Jelly Bean, so if you have recently bought the Express, then you are probably looking forward in updating its OS. If so, then you should know that the official Android 4.1.2 firmware has been rolled out and can be anytime OTA or by using KIES installed on the Galaxy Express. Furthermore, if you need to manually flash the software, then you can use this step by step guide which will easily take you through the updating process of the XWAMC4 ROM.

So, if you choose to complete this tutorial you will learn how to apply the official Android 4.1.2 Jelly Bean, dubbed as XWAMC4, update on your Samsung Galaxy Express by performing a manual method. Therefore we are not talking about the OTA, or KIES variant which is available only for the locked devices. If you have recently rooted your phone, or installed it with a custom ROM firmware, then you can apply the stock Jelly Bean software only by using a manual flashing operation, just like the one which is explained during the present tutorial.

Well, considering that if your Express is rooted the Jelly Bean 4.1.2 OS can’t be OTA received, then we can conclude that if you do have a rooted smartphone, after completing this guide, the root access will be revoked. This is happening because all the factory restrictions and default settings will be re-installed on the internal system of your device. But the best part is that you can restore the lost warranty (it can get voided when gaining root access, or when updating with a custom ROM firmware) and receive the classic Android Jelly Bean experience along with the latest features and apps available for your Galaxy Express.

Now, as you will see during the proper steps, for being able to manually update your Samsung Galaxy Express to official Jelly Bean 4.1.2 XWAMC4, you will have to use Odin, which is a dedicated tool that is usually used on flashing or rooting processes. Don’t worry because Odin can be easily used and completing this tutorial will only take you a couple of minutes; you will be done before you know it. Of course, you will have to use a Windows running computer or notebook, where you will install and run Odin and the rest of the tools that will be used on the update operation.

But first you should backup the Galaxy Express data. It is unlikely to lose your personal saves by using this method, but you can never be too sure, so it will be better to previously save your messages, call logs, contacts list, the EFS folder, market apps and so on. Also, if you do have a rooted device, then you can also perform a Nandroid backup for saving the current ROM. If something wrong will happen, you will have to resolve the issues by applying a wipe of the internal system, so it is more than recommended not to skip the backup operation.

As already mentioned, you will need to use a computer, the phone and its USB cord. Furthermore, in order to safely complete this step by step guide you will have to: deactivate the security programs (antivirus, Firewall and everything else) from your computer and from your Galaxy Express because these programs can interfere with the flashing process; charge the battery of your handset especially if there is less than 60% power left or else your smartphone might get turned off while you are trying to install the Jelly Bean XWAMC4 firmware into its system; enable the USB debugging option on your device by going to “Settings -> Applications -> Development -> USB debugging”.

Be aware as this guide is compatible only with the Samsung Galaxy Express model number I8730, therefore do not apply the next steps if you own a similar handset. If you do complete this method for a similar device then you will risk in bricking your phone.

How to Manually Update Samsung Galaxy Express to Official Jelly Bean 4.1.2 XWAMC4 OS

  1. You first have to install the proper drivers for your phone on your computer. In order to do the same, download and install Samsung KIES; skip this step if the drivers are being already installed on your computer.
  2. Then, you need to download and install Odin on the computer.
  3. Also, run the program.
  4. Next, download the update file from here and extract the same on your computer.
  5. You need to boot your Express into download mode now.
  6. So, turn off your phone and reboot it by pressing on Power, Volume Down and Home buttons at the same time for a few seconds until the download mode will be displayed.
  7. Take the USB cable and connect your phone with the computer (Odin must be running on the PC and your device must be booted in download mode).
  8. Now, take a look on Odin and check if: the ID:COM section should be yellow or blue and the “added” message should be displayed.
  9. If on Odin the above mentioned things aren’t noticed, then you need to: close Odin, unplug the USB cable, reinstall the drivers and repeat the update procedure from the beginning.
  10. If everything is working as expected, from Odin select the option named “PDA”.
  11. Pick the update file from the computer.
  12. Don’t make any other changes on Odin.
  13. Click on “start” in order to begin the flashing operation.
  14. When the firmware will be installed on Odin the “pass” message will be displayed.
  15. You can unplug the USB cord and reboot the smartphone.


It might be possible to notice that Odin is stuck and this while you are trying to complete the above explained steps; if that happens you need to follow the next steps:

  • Close Odin.
  • Disconnect the handset from the computer.
  • Force restart the Galaxy Express.
  • Reinstall the drivers on the computer.
  • Open Odin.
  • Reboot your phone into download mode.
  • Connect it with the computer and continue with the rest of the update operation.

Then, also in the end, instead of a normal boot, you might notice that your device is stuck on a boot loop (if the first boot is taking longer than usual don’t worry there is nothing wrong with your phone). If that happens then you need to:

  • Reboot your handset into recovery mode.
  • The recovery mode can be reached by pressing on Power, Volume Up and Home buttons at the same time.
  • From recovery select “wipe data factory reset” and “wipe cache partition” (this is why you need to previously backup the data).
  • Then choose “+++go back+++” followed by “reboot system now”.
  • You are done.

Congratulations, you are finally done. If there are more problems or issues and you don’t know how to handle the same, use the comments area from below and share the errors, your impressions and thoughts with us and with other users who might want to apply this tutorial. Anyway, now your Samsung Galaxy Express should be running the official Android 4.1.2 Jelly Bean XWAMC4 OS. Test the software and see how it performs on your device. If you want to root the new firmware, then stay close as we will bring a suitable root method soon (or choose between: “One-Click Root Solution for Galaxy S3, S2, Note 2 and More”, or “How to Easily Root almost any Android based device”).