On Vivo Iqoo Z9 5g - How To Use Secret Codes

Quickly view the product name, RAM size, ROM storage, and barcodes. FCM Diagnostics *#*#426#*#*

Shows the Specific Absorption Rate (SAR) to check the device's radio frequency exposure levels. Calendar Info *#*#225#*#* Displays calendar-related debug information and events. Unlocking Developer Options How to Use Secret Codes on VIVO iQOO Z9 5G

Enter your PIN if prompted. A message will say "You are now a developer!" Access the new menu under Developer options ⚠️ Caution: Quickly view the product name, RAM size, ROM

: *#06# Displays your International Mobile Equipment Identity, essential for tracking or blacklisting a lost phone. Unlocking Developer Options Enter your PIN if prompted

This is the most exciting part for tech enthusiasts. These codes allow you to open the "Engineering Mode" or "Testing Menu" on your iQOO Z9 5G to ensure every component is working perfectly.

Factory reset (non-system data). This code wipes all user data—apps, accounts, music, and photos— without removing the operating system. Use this if you are selling the phone or facing a persistent software glitch. It will not ask for confirmation beyond a pop-up, so type carefully.

Before diving into the list, here is the standard procedure: