Flashing the Vivo 1801 (commonly known as the Vivo Y71 or Y71i) is a standard procedure for fixing software issues like a "hang on logo," boot loops, or removing forgotten screen locks. The Ultimate Multi Tool (UMT), specifically its QcFire module, is one of the most reliable professional tools for this Qualcomm-based device. 1. Identifying the Vivo 1801
Before downloading files, confirm your device details to avoid a "hard brick": Model Name: Vivo Y71 / Y71i. Processor: Qualcomm Snapdragon 425 (MSM8917). Operating System: Android 8.1 Oreo (Funtouch OS). Build Number: Look for firmware starting with PD1731F. vivo Y71i (Matte Black, 16 GB) (2 GB RAM) - Flipkart
Flashing the (also known as the ) using the Ultimate Multi Tool (UMT)
is a professional-grade method for repairing "dead" software, fixing boot loops, or removing forgotten locks. This process requires the UMT QC Fire module, as the device is powered by a Qualcomm processor. Prerequisites Before you begin, ensure you have the following:
: A UMT Dongle (or NCK Pro box with UMT support) and a high-quality USB data cable. : Install the Qualcomm HS-USB QDLoader 9008
drivers so your PC can communicate with the phone in EDL mode. Flash File (Firmware) : Download the official Vivo 1801 (Y71)
stock ROM. Ensure the firmware version matches your device's specific region or model variant (e.g., PD1731F) to avoid permanent bricking. www.vivo.com Flashing Guide with UMT QC Fire Launch UMT QC Fire : Connect your UMT dongle and open the UMT QC Fire software module. Load the Firmware Navigate to the
Set the "Programmer" to Auto or manually select the loader file if provided in the firmware folder. Click the browse button for RawProgram and select the rawprogram0.xml
file from your downloaded firmware folder. This will automatically prompt you to select the patch0.xml file as well. Boot Device into EDL Mode The Vivo 1801 typically requires Test Points
to enter EDL (Emergency Download) mode. You must carefully open the back cover and short the two specific gold points on the motherboard while connecting the USB cable. Verify the connection in your PC's Device Manager ; it should show up as Qualcomm HS-USB QDLoader 9008 Execute Flashing Once the device is detected, click the button in the UMT software.
The tool will begin writing the firmware to the device's partitions. Do
disconnect the cable until the process is marked as "Finished" or "Success".
: After the flashing completes, disconnect the device and power it on. The initial boot may take several minutes. Common Issues & Solutions Dead Boot After Reset Vivo 1801 Flash File Umt
: If the phone became unresponsive after a simple factory reset, flashing the full firmware via UMT is the standard solution. IMEI Null/Unknown Baseband
: Flashing official firmware can often restore these values if they were corrupted by software issues.
: If you only need to bypass the Google Account lock without a full flash, use the option in the Read & Tools tab of QC Fire. : Flashing will erase
on your smartphone. Ensure your device has at least 50% battery before starting to prevent power failure during the process. for the Vivo 1801 or links to reputable firmware repositories
How to Flash Vivo 1801 (Y71) Using UMT Dongle: A Step-by-Step Guide If your Vivo 1801 (widely known as the
) is stuck on the boot logo, suffering from software bugs, or locked with a forgotten pattern, flashing the firmware is often the ultimate solution. Using the Ultimate Multi Tool (UMT)
dongle is one of the most reliable methods for handling Qualcomm-based Vivo devices like the 1801. This guide will walk you through downloading the correct Vivo 1801 flash file and using the UMT QC Fire module to restore your device. Pre-requisites for Flashing Before you begin, ensure you have the following: UMT Dongle: Connected to your PC with the latest drivers installed. QC Fire Setup: The latest version of the UMT Qualcomm module. Vivo 1801 Flash File: Official firmware (PD1731F_EX). Qualcomm USB Drivers: To ensure your PC recognizes the phone in EDL mode. EDL Mode Access: You will need to use Test Points on the motherboard to boot the device into 9008 EDL mode. Step 1: Download Vivo 1801 Firmware
You must use the correct firmware version to avoid bricking your device or causing "fail" errors during installation. Official Upgrade Packages: You can find official system updates on the Vivo Support Page Full Flash Files:
For a deep flash using UMT, look for the "Fastboot" or "Qualcomm" firmware package (typically in format) from trusted repositories like FirmwareFile Step 2: Preparing the Phone (EDL Mode) The Vivo 1801 requires EDL (Emergency Download) Mode to accept the flash file: Power off the phone and remove the back cover. Identify the two Test Points on the motherboard (usually near the battery connector).
Short these two points with a pair of tweezers while connecting the USB cable to the PC. Device Manager on your PC; it should show "Qualcomm HS-USB QDLoader 9008." Step 3: Flashing with UMT QC Fire Launch QC Fire: Open the UMT QC Fire module on your computer. Select Program:
Go to the "Flash" tab. Choose the "Program" button and navigate to your downloaded firmware folder to select the rawprogram0.xml Select Patch: In the same folder, select the patch0.xml Connect Device: Ensure your device is connected in EDL mode (9008). Execute Flash:
button. The tool will begin writing the firmware to your Vivo 1801. Step 4: Post-Flash Setup Flashing the Vivo 1801 (commonly known as the
Once the process is complete, the tool will display "Flash Done" or "Operation Finished". Disconnect the phone and reconnect the battery.
Press and hold the Power button to turn it on. The first boot may take 5–10 minutes.
If the phone is stuck on an FRP (Google Lock) screen after flashing, you can use the "Reset FRP" button in the UMT tool to clear it. Common Troubleshooting Hang on Logo:
If the device still hangs after flashing, try a "Wipe Cache Partition" from the recovery mode. File Fail Error:
This usually happens if the firmware version does not match the phone's model. Always verify the PD version (e.g., PD1731F) before downloading. Touch Not Working:
Flashing the wrong firmware can sometimes disable touch functionality. Re-flash with the official Funtouch OS version to fix this.
Flashing firmware carries risks and will erase all data on your device. Ensure you have backed up any critical information before proceeding. available for different regions?
, commonly known as the , is a mid-range smartphone released in 2018. In the mobile repair community, it is often discussed in the context of fixing software issues like "Hang on Logo," "Dead Boot," or "Forgot Password" using tools like Ultimate Multi Tool Key Details for Flashing with UMT Model Identification corresponds to the firmware build : Flashing this device typically requires entering EDL (Emergency Download) Mode
. This often involves using a "Test Point" (shorting two pins on the motherboard) to allow the computer to recognize the device as a Qualcomm Snapdragon interface. UMT QC Fire
module is the standard choice for this Qualcomm-based device.
: Official updates and "Stock ROMs" are used to restore the phone to its original factory state, often resolving boot loops or system errors. Common Use Cases Dead Boot Repair
: Fixing phones that won't turn on after a failed update or software corruption. : Removing screen locks or bypass FRP (Factory Reset Protection) if the Google account credentials are lost. IMEI Repair Bricking : When a device becomes unusable due
: Restoring lost or "null" IMEI numbers after deep software manipulation.
You can find official system update packages directly on the Vivo India Support Page diagrams or a link to a tested flash file for this model?
Vivo 1801 Flash File UMT: A Comprehensive Guide
The Vivo 1801 is a popular smartphone model that has gained a significant following worldwide. However, like any other device, it can encounter issues that require a firmware flash. In this article, we will explore the Vivo 1801 flash file UMT, a popular tool used for flashing firmware on Vivo devices.
What is UMT?
UMT (Ultimate Multi Tool) is a popular software tool used for flashing firmware on Android devices, including Vivo smartphones. Developed by a team of expert developers, UMT provides a comprehensive solution for repairing and restoring damaged or corrupted firmware on Android devices.
What is Vivo 1801 Flash File?
The Vivo 1801 flash file is a firmware package specifically designed for the Vivo 1801 smartphone model. This file contains the necessary software components to restore the device to its factory settings, fixing issues such as:
How to Flash Vivo 1801 using UMT?
To flash the Vivo 1801 using UMT, follow these steps:
It is critical to use the correct firmware version. Using the wrong file will hard brick the device.
Warning: Do not attempt to flash this device with a standard SP Flash Tool without an authorized Vivo account. Only UMT, Easy JTAG, or Medusa Pro can handle Vivo 1801 properly.
UMT will detect the preloader, send the DA, and start writing partitions. The progress bar will move from red to yellow to green.