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How to Flash /Install (Software) Panasonic P55 firmware (Stock ROM)

How to Flash Panasonic P55 Stock Firmware using YGDP Tool

Want to Install Stock ROM On Panasonic P55 ? If you own a Panasonic P55 smartphone and searching for the Stock Firmware then you are at the right place. Here i will guide you to install official stock Rom on Panasonic P55 smartphone. This guide is simple and easy to follow. We have listed the Official Stock Rom for Panasonic P55 below. Download the required file to either upgrade or downgrade your Panasonic P55. This guide is followed by the YGDP Tool method which is simple and easy. You can just flash firmware on Panasonic P55 using the YGDP Tool method. Follow the steps carefully to flash the firmware on Panasonic P55 using the guide.

We ask you to read the steps before doing something wrong. “READ READ READ” Once you are done! Now you can download the YGDP Tool , USB Drivers and the stock Rom from the below Pre-Requisite note.

Guide To flash Official Stock ROM On Panasonic P55

Download the ROM which we have listed in this table below. This guide is helpful to those who are looking to Downgrade or upgrade your Panasonic P55 smartphone. You can anytime flash the stock Rom on Panasonic P55. This guide is also helpful to unbrick the phone (revert back from death), you can install the Stock Firmware build to revert back to old version also. Also if you feel your Panasonic P55 lag or has any issue, then flash the stock firmware from the list below and save from situation. Stock Firmware doesn’t void a warranty on your device.

To install the Stock Firmware on Panasonic P55, Please follow the guide and download the Rom . This guide is for How to Install Stock ROM on Panasonic P55 smartphone.

The Advantage Of Panasonic P55 Stock Firmware:

  • Flash Stock To Unbrick your Panasonic P55
  • Flash Stock ROM to Fix the Bootloop problem1
  • Upgrade and Downgrade Panasonic P55
  • Unroot or Fix Bugs on your phone
  • To fix the lag or stutter on Panasonic P55
  • By flashing Stock ROM, you can solve software problems.
  • Revert back to stock to gain your warranty.


So before jump into the manual upgradation setup, please make sure you have a good amount juice with at least 80% Charge. If not please charge the phone. Backup your phone in case if you need it later. If you brick the device we are not responsible. Do it at your own risk. Remember this guide is to update Stock ROM on Panasonic P55.

Download Panasonic P55 Stock Firmware (Original flash file):-

Download Stock Firmware Rom

Flash Panasonic P55 Stock Firmware using YGDP Tool:-

Step 1: Download and install the Panasonic P55 USB Drivers on your Computer. If Android Drivers is already installed on your computer then Skip this Step.

  • Step 2: Download and install YGDP Tool on your computer.
  • Step 3: Now, Open YGDP Flashing Tool (C:YLXZGJYGDPYGDP_Assembly.exe).

Step 4: Once YGDP Flashing Tool is launched, you will be able to see the following screen: Step 5: Now, enter the Password 369 or 9527 and click on Login button. Step 6: Once you are able to see the main screen of YGDP Tool, then click on the Configbutton. Step 7: And add the CPB firmware (locate the CPB firmware that you want to flash on your Panasonic P55 Device): Flash Official Stock ROM On Android Device Step 8: Now, Click on the Apply button. Step 9: Now, connect your Panasonic P55 Device to the computer (make sure it is power off and battery installed). Step 10: Now, click on the Start Button to begin the flashing.   Step 11: Once Flashing is completed you will be able to see green Upgrade Successful message. Flash Official Stock ROM On Android Device

Congratulations, Now you have successfully flashed the stock firmware on your Panasonic P55 using YGDP Tool

Flash Panasonic P55 Stock Firmware using YGDP Tool (video):-

Readme Once:

  • [*] Take Backup: Take a Phone backup before using the YGDP Flashing Tool as because during the flashing process your personal data will be removed.
  • [*] Always press volume up key from the Panasonic P55 and connect to the computer then start the flashing process.
  • [*] Compatibility issue: If YGDP Tool doesnt work in Windows 7, Windows 8 or Windows 10, in that situation right click on the YGDP_Assembly.exe > Properties > Run this Program in compatibility mode for Windows XP.
  • [*] Credits: YGDP tool is created by Coolpad Inc, so full credits goes to them for the tool.
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