Install UBU1BQC2 April Security Patch On Galaxy Tab A 8.0 LTE SM- P355M

Samsung has started rolling out the April security patch for Galaxy Tab A 8.0 LTE SM- P355M variants. This latest official OTA update comes with build ID P355MUBU1BQC2 along with April 2017 security patch. The official update not only brings the monthly security patch but also fixes regular bugs and enhances device stability. Also, the update comes with many various performance improvements and deals with a few bugs and issues. The most recent update is still based on the Android 6.0.1 Marshmallow, we all hope that this firmware update will come with Nougat OS but don’t worry the Nougat update is expected to hit the device soon. Samsung rolled out the official firmware via OTA (Over–the–Air) in a phase-wise manner, so not all users can get the update at the same time. If the firmware is not available in your region and you can’t wait more then still you can install it manually using Odin app. With the help of Odin app, you can upgrade your Samsung phone to all the latest official firmware released by Samsung.

By following this step by step guide, you can install this April security patch on your Galaxy  Tab A 8.0 LTE SM- P355M. The latest official Android Marshmallow based firmware also resolves a few pending issues, bug fixes, and polishes system performance. Not necessary but it is better to take a complete backup of all your valuable data before proceeding. If you are interested in updating your Galaxy  Tab A 8.0 LTE SM- P355M to April security patch then go ahead and follow the given steps.


This guide containing the Official Android 6.0.1 Marshmallow firmware and instructions can be used only with the Galaxy Tab A 8.0 LTE. Do not try to install this firmware on any other device or incorrect variant. Verify the model number of your device by navigating to Settings > About Phone, the model number of your device must be SM-P355M.

Warning: will not be held responsible for any damage occurred to your Samsung Galaxy Tab A 8.0 LTE during or after the installation of Android 6.0.1 Marshmallow Proceed at your risk.


  • Make a proper backup of all the existing data and settings of your Galaxy Tab A 8.0 LTE, in case anything goes wrong then you’ll be able to restore your data back.
  • Verify that you’ve correctly installed the Galaxy Tab A 8.0 LTE SM-P355M USB Drivers on the PC.
  • Enable USB Debugging Mode on your Galaxy Tab A 8.0 LTE by navigating to Settings > Developer Options > check the USB Debugging option.
  • If you have a custom ROM installed on the phone, then after installing this stock update, it will be lost.
  • The stock version will replace the custom recovery.
  • If the Galaxy Tab A 8.0 LTE will no longer belong to a rooted version, once the stock firmware installed.
  • Check the battery level of your Galaxy Tab A 8.0 LTE, and it should be charged at least about 80% before proceeding to the installation guide.

Required Files:

Steps to Update Samsung Galaxy Tab A 8.0 LTE SM-P355M to UBU1BQC2 Android 6.0.1 Marshmallow:

Step No 1: – First, download Android 6.0.1 Marshmallow ( and Odin v3.10.7 for Galaxy Tab A 8.0 LTE on the desktop of your PC.

Step No 2: – Now, extract the archived contents to get the tar.md5 update file. Don’t extract the tar.md5 firmware update file.

Step No 3: – Turn OFF your Galaxy Tab A 8.0 LTE to boot into Download Mode.

Step No 4: – Turn the device ON by pressing and holding the Volume Down + Home+ Power keys at the same time for a while till the construction Android robot and a triangle appear. Now press the Power button once again to confirm to enter into Download Mode.

Step No 5: – Launch Odin tool on your PC as an Administrator and plug your phone to your PC while your phone is in the Download Mode.

Step No 6: – One of the ID: COM boxes will turn yellow with the COM port number once the phone is connected successfully.

Step No 7: – Select the firmware files tar.md5 that you want to flash on your Galaxy Tab A 8.0 LTE. (Already extracted in Step No 1)

Click on ‘AP’ and select file with ‘AP’ in its name.

Click on ‘CP’ and select file with ‘MODEM’ in its name. Ignore this step if there is no such file.

Click on ‘CSC’ and select file with ‘CSC’ in its name. Ignore this step if there is no such file.

Click on ‘PIT’ and select the .pit file. Ignore this step if there is no such file.

Click on ‘BL’ and select file with ‘BL’ in it’s name. Ignore if there is no such file.

Step No 8: – In Odin, make sure that the Auto Reboot and F. Reset Time options are ticked, but the Re-Partition option should be unchecked.

9: – Click on the Start button in Odin to initiate the installation process. It will take a few minutes.

Step No 10: – Once the installation process is successfully finished, the Galaxy Tab A 8.0 LTE will restart. Unplug the phone after you see the home screen.

Done! You have successfully updated Samsung Galaxy Tab A 8.0 LTE SM-P355M to Android 6.0.1 Marshmallow official firmware update.

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