Samsung Galaxy Alpha SM-G850w Marshmallow CM13 Custom ROM Update

Here is the new update for Canadian Samsung Galaxy Alpha SM-G850w. This is an unofficial CyanogenMod’s CM13 custom ROM to update the device to latest Android Marshmallow. If you own a Samsung Galaxy Alpha then this article is for you.Samsung Galaxy Alpha


The users can download the update directly from the Cyanogenmod website or they can also get the file from the link provided in the description. Let us tell you that this ROM is still in the development stage so all the function of the Android Marshmallow will not work up to mark.

But the ROM will become stable once the new builds are released. So, if you are an Android enthusiasts who likes to experience new updates on their device then you can flash this ROM. But it is advisable that you do not flash the ROM for daily run and wait for the stable ROM to be available.

Let us now move forward and discuss the procedure to flash the custom ROM.

Preparing your Phone

  • This instruction should not be applied on other devices than Samsung Galaxy Alpha SM-G850w.
  • Make sure that the device battery is fully charged to avoid interruption in the flashing process.
  • Back everything you need to an external storage.
  • Also make a Nandroid back up of the current ROM.
  • Install USB drivers of the device on your PC.
  • Device should be rooted and it’s bootloader must be unlocked.
  • Custom recovery like CWM or TWRP must be installed on the device.
  • Enable USB debugging mode on the device. Go to Settings > Developer options > USB debugging mode.USB Debugging

Procedure for flashing CM13 custom ROM

  1. Download the CyanogenMod CM13 custom ROM build from here.
  2. Download the Android Marshmallow Google App’s from here.
  3. Connect the device to PC and transfer the ROM file and Google App’s file to your device root storage.
  4. Disconnect the device and turn it off.
  5. Reboot the device into recovery mode, press and hold Volume Up + Home + Power key for few seconds.
  6. When in recovery mode tap on Wipe tab and select all the options Cache, Dalvik Cache, Data.twrp
  7. Now, confirm the wipe action by swiping the Swipe to Wipe button.
  8. Now, return to main menu and tap on Install tab.
  9. Locate the ROM file stored on you device and select it.
  10. To flash the ROM Swipe the button that says Swipe to Flash.
  11. In the same way flash the Google App’s on your device.
  12. Return to main menu and tap on Reboot.

That’s it, system will take few minutes to boot up. You can now check the device Android version in Settings > About device > Android version.

Thank you for reading the article.