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[Flash File] BLU Studio 5.5 HD S150U Firmware Download [Stock Rom]

BLU Studio 5.5 HD

[Flash File] BLU Studio 5.5 HD S150U Firmware Download [Stock Rom]

BLU Studio 5.5 HD S150U Firmware Download.

You are about to download BLU Studio 5.5 HD S150U stock rom.

You can download all BLU Studio 5.5 HD S150U Flash File from Blogthetech

BLU Studio 5.5 HD S150U Firmware Information

Rom NameBLU Studio 5.5 HD S150U Stock Firmware Rom
Based OnBLU Android Stock OS
Rom OS VersionAndroid 5.1 Lollipop
Rom TypeOdexed
SocsSpreadtrum
Software neededSpreadtrum Upgrade Tool
CompressZip format
DriversSpreadtrum USB Drivers

How to Flash BLU Studio 5.5 HD S150U


BLU Studio 5.5 HD S150U is a Spreadtrum phone which means you will need a Spreadtrum Upgrade Tool to flash BLU Studio 5.5 HD S150U stock rom.


Why we need BLU Studio 5.5 HD S150U Firmware


It’s always advisable to backup BLU Studio 5.5 HD S150U rom after purchasing it. You are definitely going to need it someday. You are going to need it for the following reasons.


  • Downgrade or Upgrade BLU Studio 5.5 HD S150U.


You can use BLU Studio 5.5 HD S150U Stock firmware to downgrade your smartphone or upgrade your smartphone. It depends on the release of the firmware or your choice if the option is available.


  • Unbrick BLU Studio 5.5 HD S150U.


BLU Studio 5.5 HD S150U Stock firmware can also be used to unbrick any BLU Studio 5.5 HD S150U.  Smartphones can be bricked in the process of rooting or flashing a custom firmware or rom or recovery.


  • Unroot BLU Studio 5.5 HD S150U.


You can also use BLU Studio 5.5 HD S150U stock firmware to completely unroot any BLU Studio 5.5 HD S150U smartphone. You also can regain your warranty by properly flashing the official BLU Studio 5.5 HD S150U. It can be done by reverting back to the official stock firmware of BLU Studio 5.5 HD S150U if your smartphone has tampered.


  • Fix Issues on BLU Studio 5.5 HD S150U.


Your BLU Studio 5.5 HD S150U might develop issue which might be unknown to it you, if it a software related issue, you can restore and fix it by flashing the stock firmware for BLU Studio 5.5 HD S150U. Today, we are presenting all the Official Firmware, both Official releases and updates following it. You can download all of BLU Studio 5.5 HD S150U rom here. If you experience any problem with any of the files, don’t hesitate to tell us.

To Flash BLU Studio 5.5 HD S150U Firmware, you need

  • A working detectable USB Cord.

  • BLU Studio 5.5 HD S150U rom file.

  • A Windows PC.

  • A good battery backup.

  • Spreadtrum Device Driver

  • SpreadTrum Upgrade Tool

Download SpreadTrum Device Driver/ Upgrade Tool

Note that flashing BLU Studio 5.5 HD S150U might erase everything in your phone including contents in internal storage. It is always very advisable to backup your contents to an external storage or a PC. If your phone is bricked and can’t be accessed, I guess there is nothing you can do.

Follow this procedure below if you wish to flash BLU Studio 5.5 HD S150U Stock Rom.


Flash BLU Studio 5.5 HD S150U Firmware using Spreadtrum Upgrade Tool.


  • Download Spreadtrum Upgrade Tool to your PC.
  • Download BLU Studio 5.5 HD S150U rom file.
  • Extract the Flash tool to your desired folder.Extract-Spreadtrum-Upgrade-Tool
  • Look for ResearchDownload and launch it.
    Launch Spreadtrum Upgrade Tool
    Launch Spreadtrum Upgrade Tool
  • Minimise Spreadtrum Upgrade Tool window.
  • Locate the downloaded BLU Studio 5.5 HD S150U flash file.
  • Extract the file from ZIP or Rar format.
  • Open Spreadtrum  Upgrade Tool.
  • Click on Load Packet.
    Load packet on ResearchDownload Tool
    Click on Load Packet
  • Locate the PAC file on the extracted BLU Studio 5.5 HD S150U stock rom folder.
    Select-the-extracted-Firmware-Pac-file-to-flash
    Select the PAC File you want to Flash
  • Select the file in the directory.
  • Wait for it to load the files.
  • Power OFF your BLU Studio 5.5 HD S150U.
  • Connect your BLU Studio 5.5 HD S150U while OFF.
  • Click on Start Downloading.
    Click on Start Downloading on Spreadtrum Upgrade Tool
    Click on Start Downloading on Spreadtrum Upgrade Tool
  • You will see a green bar when it finishes flashing
    Finished Flashing on Spreadtrum Upgrade Tool
    Green Bar on Spreadtrum Upgrade Tool
  • Done.
  • Your phone might reboot in the process.

If you face any difficulty flashing BLU Studio 5.5 HD S150U, please check whether you followed all the instructions and installed all the drivers properly..

If you don’t install all the necessary drivers, you may experience issues detecting your phone with the PC.

Because of firmware dumping variations, Firmware file formats may differ. Due to decompressing access, I might not be sure of the file type and because of that, I have provided a different method by which you can flash much firmware of different chips. Kindly indicate if yours is missing.

If the provided firmware you need to be flashed is MTK and comes with MTK Flash Files, follow the procedure below to flash MTK smartphones. MTK flash files come with preloader, boot.img, scatter file and etc.

If your smartphone is a Spreadtrum smartphone or the flash file comes in .PAC format, it means you are going to flash it with Spreadtrum Upgrade Tool.

If your smartphone is running Qualcomm chipset or the firmware you downloaded for is in .mbn format, or If the BLU Studio 5.5 HD S150U Firmware is in .CPB format, just follow the procedure below to flash it.

If you are flashing other smartphones like MediaTek, SpreadTrum, Qualcomm Snapdragon and other Chipset, Check the instruction below

Learn How to Know and Flash Any type of SmartphoneNo matter the chipset GET OTHER STOCK FIRMWARE and ROMs FROM HERE Download BLU Studio 5.5 HD S150U Firmware

John Daniel

Love the future Tech and a big fan of Android Mobile Development. In his early 20s and an undergraduate of Electrical Electronics Engineering.

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