I do not know why Amazon is making such a useless junk; I mean what’s the point in purchasing a tablet only to read books? You can also do it in any other Android or Windows tablet. OK if you already bought one of them you will not get any refund for that, but I have good news for all the Kindle Fire users, you can now install Android 6.0 Marshmallow on it, just go below and read. Moreover, don’t forget the points to remember.

Here is everything you need to update the Amazon Kindle Fire smartphone to an unofficial versions of the Android 6.0 Marshmallow software updates by installing the Slim Marsh custom ROM:


Points to remember:

  • First, root your Amazon Kindle Fire and install a custom recovery on it.
  • Make sure you backed up all the files and data stored on your tablet.
  • Charge your tablet with at least 70% battery.
  • This custom ROM and installation process is only for Amazon Kindle fire, do not try to install this custom ROM on any other Kindle variant.

Steps to install Android 6.0 Marshmallow on Amazon Kindle Fire:

  1. Download SlimMarsh custom ROM zip file from here.
  2. Download Google apps zip file from here and save both of them on your PC.
  3. Connect your Amazon Kindle Fire phone to your PC and transfer both the zip files on your device.
  4. Disconnect your phone from PC and reboot it to recovery mode.
  5. In recovery mode tap on the wipe and wipe all the system data (/! this will wipe all the data stored on your device /!).
  6. After wiping done, go back to main menu and tap on install.
    Select the custom ROM zip file and confirm to install the ROM on your phone.
  7. After installing the ROM repeat the above step once again and install the Google apps zip file.
  8. When this is done, tap on reboot followed by the system to reset your phone to OS mode.
  9. The boot animation may rest on screen for about 10 minutes just for the first boot, after that, your device will boot faster than before. After booting you will see a setup screen, just fill in the right details and you are done.

In conclusion, that is how to update the Amazon Kindle Fire smartphone to Android 6.0 Marshmallow unofficially with a SlimMarsh custom ROM. As you know, a custom ROM is not a stock ROM because it is not made by official developers. The developers who make custom ROMs are self-employed and they do not even necessarily get paid for the work. They do it mainly for fun and to help people who want to be able to update their smartphones and tablets. Since Android is an open source operating system, it allows for people to change the source code once they get a hold of it. That means anyone can have a play, but only those talented enough to make something worthwhile ever become ROMs that people install. We can tell you that SlimMarsh is made by quality developers, and it is a stable ROM.