X6855-16.3.0.155SP15(OP006PF001AZ) is the official stock firmware build number for the Infinix Note 50 Pro (4G) Open Market variant. Released in October 2026, this update brings Android 16 (XOS 16) improvements and the September 2026 security patch to devices powered by the MediaTek Helio G99/G100 (MT6789) chipset.

X6855-16.3.0.155SP15(RU006PF001AZ) is an official stock firmware (ROM) build for the Infinix Note 50 Pro (model X6855), specifically tailored for the Russian market. The full firmware archive is approximately 9.87 GB in size and is used for system updates, unbricking, or software repairs.

X6855-16.3.0.155SP15(EU006PF001AZ) is an official stock firmware (ROM) build number for the Infinix Note 50 Pro (model X6855). This specific software package runs on Android 16 and is built for European (EU) region variants.

X6855-16.2.0.150SP06(OP002PF001AZ) represents an official Android 16 stock ROM / flash file for the Infinix Note 50 Pro (Model X6855) designated for the Open Market (OP) region.

X6855-16.2.0.135SP22(OP012PF001AZ) is the official Android 16 (XOS 16) firmware and OTA software build for the Infinix Note 50 Pro 4G (X6855). This specific build targets Open Market (OP) global variants running on the MediaTek Helio G99 / MT6789 chipset.

X6855-15.1.2.145SP14(OP001PF001AZ) is an official stock ROM firmware build for the Infinix Note 50 Pro (model X6855). It is based on Android 15 (XOS 15.1.2) for devices powered by the MediaTek Helio G100 / MT6789 chipset.

X6855-16.2.0.135SP22(RU012PF001AZ) package is an official stock ROM/flash file for the Infinix Note 50 Pro 4G (Model X6855) tailored for the Russia Market.

X6855-16.2.0.135SP22(EU012PF001AZ) is an official firmware package for the Infinix Note 50 Pro 4G (Model: X6855, MediaTek MT6789) tailored for the European market (EU).

X6855-15.1.2.145SP14(RU001PF001AZ) is the official stock ROM / firmware build identifier for the Infinix Note 50 Pro (Model X6855).

X6855-15.1.2.145SP14(EU001PF001AZ) is the official stock ROM / firmware build version for the Infinix Note 50 Pro (model X6855).

X6855-15.1.2.165SP05(OP001PF001AZ)_(GsmNex.com)

X6855-15.1.2.145SP03(OP001PF001AZ)_(GsmNex.com)

Infinix X6855 Flash File Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware X6855-15.1.2.128SP01(OP001PF001AZ)

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.1.2.128(OP001PF001AZ)

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.1.0.161SP02(OP001PF001AZ)

is the official Stock ROM / Flash File for the Infinix Note 50 Pro 4G (Model X6855) running Android 15.

6855-15.1.0.138SP01(OP001PF001AZ) is an official stock ROM / firmware build for the Infinix Note 50 Pro (model X6855).

is an official Android 15 stock ROM (flash file) for the Infinix Note 50 Pro (X6855).

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.0.3.129SP01(OP001PF001AZ)

X6855-15.0.2.116SP08(OP001PF001AZ) is the official stock firmware / flash file (ROM) build identifier for the Infinix Note 50 Pro (model X6855) running Android 15.

Infinix X6855 Firmware Stock Rom (Flash File) X6855-15.0.2.116SP02(OP001PF001AZ)

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.0.2.116(OP001PF001AZ)

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.0.2.115(OP001PF001AZ)

Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File X6855-15.0.1.113SP06(OP001PF001AZ)

X6855-15.0.1.112SP03(OP001PF001AZ) Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File

X6855-15.0.1.109SP02(OP001PF001AZ) Infinix X6855 FactorySigned Firmware Infinix X6855 Firmware Infinix X6855 Flash File