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Hovatek Forum DOWNLOADS Android Firmware, Files & Tools [Downloads] BLU J12 Stock ROM | Firmware

[Downloads] BLU J12 Stock ROM | Firmware

[Downloads] BLU J12 Stock ROM | Firmware

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15-07-2026, 06:33 PM
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Below is a collection of download links for firmware or stock ROMs for BLU J12. This firmware will be handy for upgrading, downgrading, unbricking, and unrooting your phone.


Download BLU J12 stock ROM / firmware below




How to flash/unbrick BLU J12



The firmware above is in .pac format (after you extract from zip, rar or 7z file) so this means you can flash with Research Download, Factory Download, or Upgrade Download tool or any paid tool which supports flashing in PAC format.

Before flashing, ensure that:

  1. You have taken note of your current build number. Knowing your current build number makes it easy to revert to the most compatible firmware in case you flash a buggy or incompatible firmware.
  2. The battery is charged to an extent and inserted into the phone
  3. The phone is powered off / switched off
  4. You have installed Spreadtrum SCI USB drivers
  5. You have downloaded either part of or the complete firmware above (depending on what you need to flash) and unzipped it into a folder.
  6. You have a PC and a USB cord.
  7. You know the boot key for your device (usually the volume down, volume up or volume up + volume down button)

How to flash



Flash using Research Download, Factory Download, or Upgrade Download tool. Research Download tool is best for backing up or flashing only a few partitions. Upgrade Download tool is good for a full flash. Factory Download tool should be used if you have a boot loop after flashing with other tools. Ensure to try the latest version of each first before 

BLU J12 Core Specification

  • Technology
    GSM: Quad Bands
    3G: 850/900/1700/1900/2100
    LTE: 2/3/4/5/12/17/28/66/71

  • Display
    6.5” HD Infinity Display
    576 x 1280 Resolution
    216ppi

  • Processor
    Unisoc 9863 | 28nm
    ARM Cortex-A55
    1.6GHz Octa-Core

  • Memory
    64GB Internal Storage
    Up to 6GB RAM (2GB+4GB Xtra RAM)
    MicroSD up to 256GB

  • Camera
    Dual 8MP Camera + LED Flash
    5MP Selfie Camera
    Video Capture 1080p@30fps

  • Battery
    4,000 mAh

  • Connectivity
    Bluetooth 4.1
    Wi-Fi 802.11 (a/b/g/n)
    HAC Compatible
    USB Type-C

  • Operating System
    Android 14

  • Security
    Fingerprint Sensor

  • Size and Weight
    Height: 166mm
    Width: 76.3mm
    Depth: 9.7mm
    Weight: 213g
Learn MediaTek, Unisoc / Spreadtrum (SPD) and Qualcomm Software Repairs @ https://www.hovatek.com/training
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