On this page, we have managed to share the Rangs Stock ROM Firmware (Flash File) for all Rangs smartphones and tablets.

All the following Rangs Stock ROM (zip file) contains the original Rangs USB Driver, Flash Tool, and the Firmware File. After Downloading the firmware, follow the instruction manual shipped with the firmware to flash or install firmware on mobile.

Rangs Stock ROM Firmware

Whats Rangs Stock ROM and its Advantage

The Stock ROM (Mobile OS) is the Most Stable ROM released by the device manufacturers depending on the device model and Android version. However, the Stock ROM don’t offer many customizations or features for the device.

While in general third-party firmware (Custom ROM) has system bugs and stability issues. In this case, you may experience battery issues, network issues, camera issues, missing features, lags, overheating, slow performance, and many more. But whenever you switch to Stock ROM, you can quickly fix them all.

Advantages of Rangs Stock ROM

  • Unbrick the device.
  • Upgrade or downgrade Mobile OS.
  • Fix OTA update issue.
  • Fix a problem with the device startup loop.
  • Fix bugs on your phone.
  • Fix Lag or Stuttering on the device.
  • Fix battery drain issue.
  • Software performance improvement.
  • Returning a stock ROM entitles the warranty on the phone.

Download Rangs Stock Firmware

Model Name Download
Rangs B2 Firmware
Rangs C7 Firmware
Rangs Contigo ES42 Firmware
Rangs Contigo G1 Firmware
Rangs D1 Firmware
Rangs D2 Firmware
Rangs J1 Firmware
Rangs J3 Firmware
Rangs J6 Firmware
Rangs J7 6531A Firmware
Rangs J8 Firmware
Rangs J55 Firmware
Rangs J102 Firmware
Rangs J103 Firmware
Rangs K1 Firmware
Rangs M01 Firmware
Rangs P01 Firmware
Rangs P02 Firmware
Rangs P03 Firmware
Rangs S7 Firmware
Rangs S100 Firmware
Rangs SmartWatch Firmware
Rangs Z09 Firmware


[*] After flashing (installing) the Rangs Stock ROM on your device, you may need to flash (install) the IMEI using the IMEI tool provided with the firmware file. If you are going to flash the IMEI, then flash the Original IMEI that comes with your device.

[*] Rangs USB Driver: If you are looking for the original USB Driver, then head over to the Rangs USB Driver page.

[*] Request Firmware: If you are looking for any specific firmware that is not listed above, you can request it through the comment box below (do not request firmware through the contact page, or else it will be ignored).

[*] Credits / Copyright: All of the above files are free provided by Rangs, Inc. So full credit goes to them for sharing the firmware for free.