Original Panasonic ROM (Flash File)

Panasonic GD21 Stock Firmware (ROM)

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Panasonic Firmware

On this page, you can find the official Panasonic GD21 Stock Firmware ROM (Flash File). The firmware is a compressed package containing Flash Tool, USB Driver, Flash File, How to Flash Manual, and IMEI Tool.

Panasonic GD21 Firmware (Stock ROM)

The Panasonic Stock Firmware can upgrade or downgrade your Panasonic device’s OS, Fix any software-related error, Fix an IMEI-related error, and Fix bootloop error.

File Name: Panasonic_GD21_6531DA_V16_010714_SPD.zip
File Size: 4 MB
How to Flash (install): Follow Tutorial

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How to Flash Panasonic GD21 Firmware (Stock ROM)

  1. Download and Extract the Panasonic GD21 firmware package on the computer.
  2. Once you have extracted the Package, you will get the Flash File, Flash Tool, Driver, and How-to Flash Manual.
  3. Install the provided UniSoc/Spreadtrum USB Driver on the computer.
  4. Once you have successfully installed the Driver, Open SPD Flash Tool on the computer.
  5. Once the SPD Flash Tool is Launched, Connect your Device to the computer by using the USB Cable.
  6. Click on the Download or Upgrade button in the SPD Flash Tool to begin the Flashing process.
  7. Once the flashing process is completed, you will get a Success Message at the End.
  8. Disconnect your Panasonic GD21 device from the computer and Restart it.
  9. Follow Complete Tutorial


[*] SPD Flash Tool: You can download the latest version of SPD Flash Tool from SPD Upgrade Tool or SPD Research Tool page.

[*] Backup: We recommend taking a backup of your data before flashing the Stock Firmware because flashing the stock firmware may permanently delete your data from the device, and you won’t be able to recover it.

[*] Credits: The above firmware is the original flash file released by Panasonic Corporation. We have scanned the firmware using Malwarebytes Premium before uploading and publishing.

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