Download Install G903MUBS1BQA1 August Security Marshmallow For Galaxy S5

Download Install G900IZTS1CQD1 April Security Marshmallow For Galaxy S5

Today Samsung has started sending the latest August Security Patch for Galaxy S5 running Android Marshmallow. The update has started to roll out as we speak. The latest OTA comes with build number G903MUBS1BQA1 for Galaxy S5. If you are running the Stock Marshmallow on Samsung Galaxy S5, then you will receive the notification anytime soon on your device. The update is sent via OTA (Over the air) to all Galaxy S5 in Phase wise manner.

The latest build G903MUBS1BQA1 comes with August Security Patch, fixes several bugs and improves the stability and performance of the device. The update is still based on Android 6.0.1 Marshmallow. Now you can enjoy the latest Android 6.0.1 Marshmallow for Samsung Galaxy S5 SM- G903M by following the below step by step guide to flash latest August Security Marshmallow ROM on Galaxy S5 G903M.

Upgrade to Nougat Here : Install Lineage OS 14.1 on Galaxy S5

As of now, this is an incremental update with latest August Security patch for Samsung Galaxy S5. So make sure to update to keep your device safe with August Security update which has patched a whole host of vulnerabilities in Android. (Recommended).

Download Install G903MUBS1BQA1 August Security Marshmallow For Galaxy S5

Flash G903MUBS1BQA1 August Security Marshmallow For Galaxy S5 G903M

If you didn’t receive any notification about the new update on Samsung Galaxy S5, then you can either check for the update manually or you can follow our simple guide on How to flash Marshmallow G903MUBS1BQA1 For Samsung Galaxy S5.

To Check for latest Update, Go to Settings -> About Phone -> Software Updates.

If you have the update then press download and upgrade the OTA to Android 6.0.1 Marshmallow. If you didn’t receive and you still want the update, then don’t worry. You can Update Samsung Galaxy S5 to August Security Patch based Marshmallow manually by following the below steps. So read the steps carefully to upgrade Samsung Galaxy S5 G903M to Marshmallow OTA update.

Remember, Below guide is to update full OTA firmware file on Galaxy S5 G903M.


Update Via Samsung Kies

You can upgrade your phone to all latest firmware via Samsung Kies. Now install official Samsung Kies on your computer and start upgrading to latest August Security Patch update G903MUBS1BQA1 on Galaxy S5 G903M.

Click Here To Upgrade Via Samsung Kies To August Security Patch Update


  • Download and Install the Samsung Kies Software : CLICK HERE or
  • Download and Install the SamsungUSB Drivers : CLICK HERE
  • Click to download and Extract the ODIN ZIP file on Desktop : CLICK HERE


  • Remember : This guide is to Install August Secuity Patch update on Galaxy S5 G903M (G903MUBS1BQA1).
  • Your device must have 70% Of battery
  • You need a Laptop or PC to perform this Action
  • You should be using Stock Firmware and not Custom ROM
  • Back Up your Data to make sure you have data’s in case if something Wrong (This Process won’t loose your data)
  • You need to Enter Download Mode
  • Make sure you have followed the steps properly. Don’t Skip and Read ! – We are not responsible for any damage that you make to your Phone.


Download ODIN ROM for Galaxy S5


Guide to Flash Firmware Using ODIN

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