Gblack J400 Pro firmware

Are you looking for the Stock firmware ROM of your Gblack J400 Pro device?

in this post, we share official link to download stock firmware rom (stockrom). flash it in your device and enjoy the original Android experience again.

firmware Infomation:

  • Model: Gblack J400 Pro
  • Rom Type: Official
  • Gapps include: No Rooted
  • Language support: Multilang

This Rom help full for: Device screen only shows logo after boot, device reboots, device is hanging, device runs slow, device not working properly, Or you want to back Update your device, … and more.

Download Gblack J400 Pro Official Stock Firmware Rom | latest Flash File:


  • File Name: Gblack J400 Pro_MT6580_20180615_5.1.rar
  • File size: 501MB
  • File Status: Free Premium Fast Download
  • Pass file: https://firmware247.com

Download File Now


Howto Flash Gblack J400 Pro Stock ROM:

Use SP Flashtool Software to Flash the firmware.

Step 1: Download and extract the Gblack J400 Pro stock firmware on your PC.

Step 2: after extracting, you will get the firmware file.

Step 3: Download and extract the Sp Flashtool on your PC.

Step 4: Download and Install USB Driver for Gblack J400 Pro smartphone on your PC ( skip if driver are already installed ) before flash.

Step 5: Follow the guide to flash stock firmware on your device below:

Read Me:

* Download the correct firmware version for your Gblack J400 Pro Device.

* Do not try to use Rom to another machine

* TakeBackup: Backup all data Means, Create A Copy files of Contacts, Image, Video, Music and All Other Your Personal Document.
When the run flashing process the Flash tool of erases the data before start the flashing.

* The firmware shared on this post is official released by the company and helps you to recovery your device.

  • If code-protected machines, limit the full flash.

P/S : If you’re happy, share this site on social networks or another forums. Thanks

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