You can download the official stock firmware/ROM for your Blu J7 ATT MX from this page. This PAC firmware file can be flashed using the SPD Research
You can download the official stock firmware/ROM for your Blu J7 ATT MX from this page. This PAC firmware file can be flashed using the SPD Research Download or Upgrade tool.
This firmware file can be used to fix all system issues like fixing unknown baseband, IMEI, bootloop, FRP etc.
Requirements to flash this file
- A computer with Android spd USB drivers installed. You can download them from here
- A USB cable
- SPD flash tools like ResearchUpgrade or Miracle box. Download from here
- The firmware of the spd device to be flashed
How to flash
- Extracted downloaded stock firmware file
- Extract and run spd flash tool
- From the dashboard of the flash tool, locate and load the spd packet firmware file
- After the firmware has been loaded in the flash tool, click on the play icon to start the flashing process
- Now remove the phone battery, reinsert and then press and hold the boot key(volume down or volume up depending on the device) and connect the phone to pc via USB.
- The flashing process should start. Just sit still and wait for it to complete.
- [*] See full guide with screen captures here
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