Realme 3i RMX1821 Flash File Firmware No Auth

Download Stock Firmware/Flash File Oppo Realme 3i RMX1821:

Download Official Stock Firmware Flash File For Realme 3i. If you own Realme 3i Smartphone and You want to download the Stock ROM /Flash File/For it then You are on a Correct Place, You have to do this by following the Below Guide.

Realme 3i Run on android 9.0 OS Which is Powered by a Mediatek Helio P60 Processor. it is a dual SIM (GSM and GSM) Smartphone that accepts Nano-SIM and Nano-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, NFC, USB OTG, FM, 3G and 4G.

The Device Come with 3/4GB of RAM and 32/64GB of Storage Can be Expandable via SD Camera Department it Come with 13+2MP Rear Camera With 13MP Front Shooter.


  • Flashing the ROM will Erase all Your Personal Data including Storage. So we advice You to First Make a Complete backup of Your Phone.
  • Please Do carefully, We are Not Responsible for any Damage to Your Device.
  • Ensure that Your Device at-least 50% Charge During Flashing Process to Prevent accidental Shut Down.

Firmware Information-

Device Name: Realme 3i
Type: Full ROM
ROM Size: up to 6 GB
SoC: Mediatek Helio P60
Os: Android
Password: Null
Gapps: Included
Root access: Not
Credit: Oppo India
Firmware Version: RMX1821EX_11_C.14_200723

Download Links:

Flash Tools:

  • oppo Download tool: Here

USB Driver: 

How to Install Official Firmware/ROM/Flash Realme 3i-

  • unpack downloaded Firmware using this tool
  • Install Mediatek VCOM driver on Your computer
  • then disable SLA Authentication by following this Guide (if not disabled You will face a BROM error or flash tool Require a Authorized account/ID)
  • Download & Extract smartphone Flash tools on your computer
  • From the flash tool folder Run Flash_tool.exe

  • Go to Download tab Click Scatter and Load Scatter File from ROM Folder

  • Select Download only. Click Download & Connect Your switched off Phone.

  • Flashing Process started. once done unplug device & switch it ON

Note: if there is no usb device, then check for usb driver or try test Point method

Method 2:

  • Extract ROM File & Download tool in Same Folder
  • Now Install correct Driver on PC
  • connect Phone to PC with USB
  • Run download tool. it will automatically Load Firmware if Not then select Firmware and then and Click Start. wait until Flashing Complete Done. unplug Phone and bootup.

Have any question Let us know via Comment.