On this page, you will find the Official Panasonic T21 Stock Firmware ROM (Flash File). The Firmware comes in a package and contains Flash Tool, USB Driver, Flash File, How to Flash Manual, and IMEI Tool.
The Panasonic Stock Firmware can be used to upgrade or downgrade your Panasonic device’s Firmware, Fixing any software-related error, Fixing an IMEI-related error, and Fix bootloop error.
Package Name: Panasonic_T21_EB-90S045T21V1004_BC.zip
How-to Flash (install): Follow Guidelines
Package Size: 476 MB
[*] Broadcom Flash Tool: You can download the latest version of Broadcom Flash Tool from Broadcom Flash 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.
[*] Original firmware: The above firmware is the original flash file released by the Panasonic Inc. We have scanned the firmware using Malwarebytes Premium before uploading and publishing.