How to flash Lumia 540 Dual SIM (RM-1140) Windows firmware



Updated: June 23, 2024

The Lumia 540 Dual SIM (RM-1140) Windows firmware on this page will restore your device to its default state and fix any and all software issues. Any modified system or other partition of the device will be overwritten when you once the flashing process is complete, and replace with factory software.

It is recommended that you backup all important data on the phone (like contacts, messages, app data, etc.). Such data could be lost after flashing.

Charge the phone to at least 50% so that the flashing process will not be interrupted by low battery. Interrupting the firmware installation means bricking your phone.

Download the firmware file from the link below and follow the recommended flashing instructions immediately after the download options. Please report any broken links discovered.

Download Lumia 540 Dual SIM (RM-1140) Windows (OS 8.10.15137.148) firmware

Product CodePackageFirmware
059X292RM-1140 VAR APAC AU CVDownload
059X2C0RM-1140 VAR APAC TH CVDownload

Important! Always backup existing firmware before flashing any other firmware.

How to flash Windows OS on Lumia 540 Dual SIM (RM-1140)

Follow all steps below carefully and you should be done flashing in a few minutes. If you need any assistance do not hesitate to post in comments section.

1. Download and install “Windows Device Recovery Tool” – Download or Download
2. Download .ffu file from the download options above. e.g., RM1140_02074.10000.15174.44001_RETAIL_prod_signed_1009_022520_000-PH.ffu
3. Now launch CMD (Command Prompt) on your PC as Administrator
4. In CMD, type- **cd C:\Program Files (x86)\Microsoft Care Suite\Windows Device Recovery Tool**
If using 32bit PC, type this instead: **cd C:\Program Files\Microsoft Care Suite\Windows Device Recovery Tool**
5. Connect your phone to PC via USB cable now
6. Still in cmd, type: **thor2 -mode uefiflash -ffufile**
C:\pathtoffufolder\file name.ffu
-dofullnviupdate -dofactoryreset
7. Wait until your phone screen turns green
8. Then type: thor2 -mode rnd -bootnormalmode
9. Done…