Update Galaxy 551 GT-I5510 to Android 2.3.6 BUKP7 Official Firmware

Since Android 2.3.6 Gingerbread wasn’t a part of Galaxy 551 GT-I5510, we thought of writing a tutorial on how to flash it on the smartphone using BUKP7. You will find all the necessary steps for the procedure here!

The new official firmware came out in March last year for Germany (Vodafone), the UK (Vodafone), the New Zealand and Greece (Vodafone). Your phone is 3 years old, but this new firmware will make sure you get the best out of it via many new features.

Which look like this: better stability while moving between home screen panels, mobile hotspot bug fixes and better security overall, a much-needed update to VZ Navigator with all the latest 3D map enhancements, better battery life whenever you want to use Phone Book Access Profile Bluetooth headsets, enhanced data throughput performance in environments that register low 4G signals, Vcast apps, Visual Voice Mail updates, an updated Favorite Contacts widget, CMAS (short for Commercial Mobile Alert Service), the ability to see how much longer you have to wait while performing an OTA update and better stability for data connectivity after you turn Airplane Mode off.

If there’s no custom ROM running on your smartphone, don’t worry: you can still upgrade it using our guide. If you want to use Samsung’s KIES instead, you can, thanks to the fact that the BUKP7 has its KIES logo activated. We only ask that you use, for our guide, only the Galaxy 551 GT-I5510 instead of another model; using a different variant is going to brick the device.

As always, the phone’s root access will be revoked (that is, if the device has been rooted). Also, the system partition shall be deleted. However, the internal and external SD cards won’t go through that, and neither will the handset’s important data.Galaxy-551-GT-I5510


To pave the way for our future update steps, we must first ask you to read about these important pre-requisites:

  • turn off the security software running on the phone and the laptop;
  • look for USB drivers which work best with your phone and then you downloaded them on your notebook;
  • charge the battery of your handset;
  • a regular backup and a full NANDroid one are very much needed;
  • your laptop must only run Windows;
  • on your phone, the option called USB Debugging must be enabled;
  • finally, be sure to download Odin from this page and after the Android 2.3.6 I5510BUKP7 stock firmware (the Germany version from , the UK version , the New Zealand version and the Greece version ) on the laptop.


  1. Here we go with the instructions for the first step: go to where the two packages are saved, then use an unzipping tool to extract their content on the laptop and after that make sure the handset enters Download Mode.
  2. This task should be done like this: simultaneously press and hold Volume Down, Home and Power, then release them once a screen of warning is shown and you will reach the Download Mode soon.
  3. So continue by launching, on your laptop, the Odin as an Administrator, take the USB cable of the handset and do this: connect the phone to the notebook with its help.
  4. After you wait a couple of minutes, a connection will have been established once “Added!!” and an ID:COM box in yellow come on-screen. In case you run into trouble here and the plugging fails, you need to install the USB drivers once more or, instead, use another USB port.
  5. For the next couple of minutes you should be doing this: ap PDA, opt for a file with a CODE in its name, tap Phone, opt for a file with MODEM in the name, click on CSC, opt for that file which has CSC in the name, tap PIT and be sure to select a file that comes with a .pit extension. We will now ask you to check Auto Reboot, Re-partition and F. Reset Time, then to click on “Start“.
  6. [sc name=”banner-jos”]The BUKP7 custom firmware will, in a matter of minutes, begin its flashing phase. When that’s over, the Galaxy 551 GT-S5510 is going to enter into a restarting phase and then it shall have a “Pass” message on the touchscreen.
  7. When you spot that, the phone and the notebook are ready to be disconnected from one another and you are ready to go to your handset, tap Settings, then choose About Phone and the new firmware will wait for you there.

If it disappoints you while you test it, the old ROM can be restored. But only if the NANDroid backup is used to revoke the update procedure.

If you don’t understand our steps or you encounter issues, use the comment field below!