How To Flash Vivo Y55 (1603) With Official Flash File
Whether your phone is experiencing an automatic restart loop, stuck permanently on the Vivo logo, or facing a complete system crash (brick), installing a clean factory image will reset the device back to its default working state. Because the Vivo Y55 runs on a Qualcomm Snapdragon processor, you will need to utilize the official Qualcomm Flash Image Loader (QFIL) tool or a professional service dongle like the Ultimate Multi Tool (UMT) to write the new software onto the storage.
Vivo Y55 is a legacy, budget smartphone with the following core specs:-
- Display: 5.2-inch HD IPS LCD screen.
- Processor: Snapdragon 430 (1.4 GHz octa-core).
- Memory: 2GB RAM paired with 16GB storage (expandable up to 128GB).
- Cameras: 8 MP rear camera and a 5 MP front camera.
- Battery: 2,650 mAh capacity with Micro-USB charging.
- OS: Android 6.0 (Marshmallow) with Funtouch OS 2.6.
- Biometrics: No fingerprint scanner.
Before proceeding, understand that software flashing carries inherent risks:-
- Total Data Loss: This process will completely wipe all internal storage, settings, and apps.
- Battery Charge: Ensure the phone has at least 50% battery to prevent it from dying mid-process, which will permanently brick the hardware.
- Exact Model Matching: Download the stock firmware tailored exactly to your specific model variation (e.g., Vivo Y55, Y55L, or Y55s). Installing the wrong version will break the system partitioning.
Required Files & Tools to Download:-
You must prepare and download the following files on a Windows PC:
- Official Vivo Y55 Stock ROM (Flash File): Make sure it contains the raw program and patch XML files.
- Qualcomm USB Drivers: Required so your PC can communicate with the phone’s chipset.
- QFIL Tool (Qualcomm Flash Image Loader): The utility that communicates with the phone to write the firmware.
Step-by-Step Guide to Flashing the Vivo Y55
Step 1:- Install Drivers and Tools
- Extract the downloaded Qualcomm USB Driver package on your PC and run the installer.
- Download and install the latest setup of the QFIL Tool.
- Extract the Vivo Y55 Stock Firmware zip folder onto an easily accessible directory (like your C: drive or Desktop).
Step 2:- Configure the QFIL Tool
- Launch the QFIL application on your computer.
- Under the Select Build Type section, click on the Flat Build.
- Under Select Programmer, click Browse, navigate to your extracted firmware folder, and choose the
.mbnfile (usually namedprog_emmc_firehose_xxxx.mbn). - Click Load XML. A window will pop up automatically pointing to your firmware folder.
- Select the rawprogram0.xml file, followed immediately by selecting the patch0.xml file in the subsequent prompt.
Step 3:- Boot Vivo Y55 into EDL / Download Mode
To accept the firmware, your device needs to be in Emergency Download (EDL) mode.
- Power off your Vivo Y55 completely.
- d hold both the Volume Up and Volume Down buttons simultaneously.
- While holding down these keys, plug the micro-USB cable from your computer into the phone.
- Look at the top of the QFIL Tool. The “No Port Available” text should change to Qualcomm HS-USB QDLoader 9008 (COMXX). Release the volume buttons.
- If you want to watch video tutorial guide:- Watch Now
Step 4:- Initiate the Flashing Process
- Once the correct COM Port is recognized, verify all file paths look correct.
- Click the Download button located at the bottom of the tool to start writing the flash file.
- A progress bar will fill up. Do not disconnect the cable or touch the phone during this phase; doing so will corrupt the device storage.
Step 5:- Reboot and Setup
- Once completed, the status bar in QFIL will show a “Download Succeed” text log.
- Disconnect your Vivo Y55 from the computer.
- Hold down the Power button to boot up the device.
- The first boot can take between 5 to 10 minutes to properly set up the new operating system partitions. Once the welcome screen loads, proceed through the setup wizard.
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