If your Vivo Y75 4G (PD2150F) is stuck on the logo, restarting endlessly, or has lost its IMEI number, don’t worry — these issues can often be fixed at home. Whether it’s due to a failed software update or system corruption, this detailed guide will help you restore your phone using the correct firmware and tools.
In this article, you’ll learn how to:
Flash official stock firmware
Repair a corrupted or missing IMEI
Solve bootloop, no network, or software crashing issues
Recover your phone without visiting a service center
📦 What Is Stock Firmware and Why Is It Important?
Stock firmware is the original operating system your Vivo phone comes with from the factory. It’s like Windows for a PC or Android for a tablet. Flashing the stock ROM (firmware) is a powerful fix for many system problems, including:
Stuck on boot logo or bootloop
Phone not turning on
Software crashing repeatedly
IMEI showing as “null” or “invalid”
Lost network after flashing or unlocking
Want to remove root or return to official software
Flashing is safe when done properly with verified files. Let’s start by understanding when and why you should flash firmware.
✅ When Should You Flash Vivo Y75 4G?
Here are common situations where firmware flashing can help:
Problem
Fix
Phone stuck on Vivo logo
Flash firmware via SP Flash Tool
Bootloop after update
Reinstall firmware cleanly
Invalid or missing IMEI
Use SN Writer Tool to repair
Dead phone (no power)
Flash stock ROM with correct drivers
Slow system / bugs
Clean install firmware
You want to remove root
Flash stock to restore warranty
🔧 What You Need Before You Flash
Before you begin flashing, make sure you have the following:
✅ Essential Files & Tools
Stock Firmware (ROM) for Vivo Y75 4G PD2150F
Should match your device region (India, Global, etc.)
Format: .zip or .img inside a scatter folder
SP Flash Tool (for MediaTek)
Used to flash firmware on MTK devices
Vivo USB Drivers
Required for the PC to detect your phone
A Windows PC
Flash tools only work on Windows
USB Cable
Original Vivo cable preferred
IMEI Number
Found on the phone box or SIM tray sticker
Backup Your Data
Flashing will erase all internal data
📥 Step 1: Download Required Files
Firmware: Search “Vivo Y75 4G PD2150F official firmware” from trusted sources like:
Drivers: Vivo MTK USB drivers or install MTK VCOM drivers
🛠 Step 2: Install USB Drivers
Download and extract the Vivo MTK USB driver.
Open Device Manager on Windows.
Connect your phone (powered off) to PC.
The driver should install automatically.
If not, install manually via .inf file.
⚙️ Step 3: Flash Firmware with SP Flash Tool
👉 Boot Your Phone into Download Mode
Power off the phone.
Connect it to the PC while holding Volume Up + Down.
SP Flash Tool will recognize the device in “preloader” mode.
👉 Flash Process
Extract the SP Flash Tool zip.
Run flash_tool.exe as Administrator.
Click “Scatter-loading” and choose the MTxxxx_Android_scatter.txt from firmware folder.
Make sure all partitions are selected.
Choose “Download Only” (or “Firmware Upgrade” if downgrading).
Click Download.
Connect your phone and wait for flashing to complete (5–10 minutes).
You will see a green tick when it’s successful.
Your phone will reboot automatically. If it doesn’t, disconnect and power it on manually.
🧰 Step 4: IMEI Repair for Vivo Y75 4G
Sometimes after flashing or unlocking, the phone may show:
No SIM detected
Invalid IMEI
No network
This means the IMEI is either wiped or corrupted. Here’s how to fix it.
⚠️ Legal Note:
Repair IMEI only on your original phone using the factory IMEI. IMEI tampering is illegal in many countries.
🔁 Method 1: SN Writer Tool (for MediaTek)
🧩 What You Need:
SN Writer Tool
Vivo Y75 4G DB/MD1/NVRAM files
Original IMEI (from phone box or SIM tray)
🛠 Steps:
Download and extract SN Writer Tool.
Open it and select:
COMPort: USB VCOM
Target Type: Smart Phone
Click System Config and check IMEI, then load DB/NVRAM files.
Enter your IMEI numbers (IMEI1 and IMEI2).
Click Start.
Connect the phone (powered off) via USB.
Tool will write the IMEI and show “PASS” if successful.
🔁 Method 2: Maui META Tool (Optional)
If SN Writer doesn’t work, try Maui META Tool. It connects your phone in META mode and allows you to write IMEI manually.
⚠️ Common Errors and Fixes
Problem
Solution
Phone not detected
Reinstall VCOM USB drivers
Flash tool stuck
Try another version or firmware
Bootloop after flashing
Do a factory reset from recovery
Invalid IMEI
Use SN Writer or Maui META
Flash failed: DA mismatch
Use firmware matching your model (PD2150F only)
BROM error
Disable driver signature on Windows
✅ Post-Flashing Tips
After flashing is complete:
Go to Settings > About phone to verify firmware version
Check IMEI using *#06#
Insert SIM card and test mobile data and calls
Sign in to your Google Account to restore apps and backups
📋 Final Thoughts
Flashing the stock firmware on your Vivo Y75 4G (PD2150F) can solve many serious problems, from bootloops to software errors and invalid IMEI. While it might seem technical at first, this step-by-step guide is all you need to get your phone back to life.
🧠 Key Takeaways:
Always use the correct firmware for your exact model (PD2150F)
Install USB drivers properly to avoid detection issues
Take a full backup — flashing wipes everything
Only write original IMEI to avoid legal issues
If done right, flashing can restore your phone to its original condition — fast, responsive, and fully working!
