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

All the following Posh Stock ROM (zip file) contains the original Posh 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.

Posh Phone Stock ROM

Whats Posh Phone 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 Posh Phone 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 Posh Phone Stock Firmware

Model Name Download
Posh E500A Firmware
Posh E600A Firmware
Posh Equal S700A Firmware
Posh Equal S700B Firmware
Posh Equal Max S900 Firmware
Posh Icon Pro HD X551 Firmware
Posh Kick X511A Firmware
Posh L500A Firmware
Posh L530 Firmware
Posh L540 Firmware
Posh L550 Firmware
Posh L600 Firmware
Posh Orion Max X550A Firmware
Posh Orion S450 Firmware
Posh Pegasus C350 Firmware
Posh Pegasus Plus C351 Firmware
Posh Revel Max LTE L551 Firmware
Posh S240B Firmware
Posh S240K Korea Firmware
Posh S350A Firmware
Posh S350B Firmware
Posh S400A Firmware
Posh S400B Firmware
Posh S410A Firmware
Posh S410B Firmware
Posh S500A Firmware
Posh S500B Firmware
Posh S510 Firmware
Posh S510A Firmware
Posh S510B Firmware
Posh S510C Firmware
Posh S900B Firmware
Posh Titan Max HD E550 Firmware
Posh Titan Max HD E600 Firmware
Posh Titan Pro HD E550 Firmware
Posh X510B Firmware
Posh X511 Firmware
Posh X511A Firmware
Posh X511B Firmware
Posh X511C Firmware
Posh X551 Firmware


[*] After flashing (installing) the Posh Phone 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.

[*] Posh USB Driver: If you are looking for the original USB Driver, then head over to the Posh 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 Posh, Inc. So full credit goes to them for sharing the firmware for free.