Infinix Hot S (X521) Official Firmware (Tcard & Flashtool)

Download Infinix Hot S (X521) official firmware from the link here, and learn how to flash the update package from stock recovery or flashtool, in simple steps.

There are different SDcard and Flashtool firmware packages in this post for all variants of this smartphone. (Refer to your phone’s About section for more details).

If you notice that any of the links provided below is broken or doesn’t work, please post in comments section so we fix and update it ASAP.

Download Options

Flashtool Firmware
X521-J5088A1-M-160712V14Download1.55 GB
X521-J5088G1-M-161229V20Download1.7 GB
X521-J5088A1C1-N-170505V10Download1 GB
X521-J5088E1G1-N-170508V10Download1 GB
X521-J5088AC-N-170524V20Download2 GB
X521-J5088AC-N-170602V34Download2 GB
SDcard (TFcard) Firmware
X521-J5088E1G1-N-170508V10Download1 GB
X521-J5088AC-N-170524V20Download1 GB
X521-J5088EG-N-170524V19Download1 GB
X521-J5088AC-N-170602V34Download1 GB

How to flash

If you downloaded the flashtool firmware, click here to follow flashing instructions. If it’s Tcard or Sdcard firmware you downloaded, read instructions below to flash.

Once you have downloaded the stock rom update from above link, follow the instructions below to install:

1. Download and put the update package in sdcard

2. Insert the sdcard into the phone

3. Go to A-Z->”System Update” then select “Update from local”

4. Select the update package from sdcard and wait while the update begins.


  • Copy the package to your phone’s storage
  • Reboot the phone in recovery mode
  • Select Install from SD as shown below
  • Select the exact drive where you copied the firmware to (internal / external sdcard)
  • Choose the file
  • Confirm
  • Flash, and wait for the process to complete
  • Done.


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