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Download OxygenOS 11.2.5.5 for OnePlus 9 and 9 Pro OTA Update

Update 1: OTA Download links now available for Oxygen OS 11.2.5.5.

The 2021 flagship phones from OnePlus are now receiving yet another OTA update today with new software version OxygenOS 11.2.5.5. The OEM is more focused on their latest shiny flagship phones with what look like, not-monthly, but weekly firmware updates. The latest OxygenOS 11.2.5.5 for OnePlus 9 and 9 Pro features May 2021 security patch level and a bunch of other improvements or system optimizations.

Just a couple of weeks ago, OnePlus rolled out Oxygen OS 11.4.4.4 with several bug fixes. It featured a long list of bugs that were eventually fixed. Plus, the newer April 2021 security patch level and updated GMS packages from March 2021. It also brought charging stability, fixed sensitivity of keyboard in the background area, brought temperature control strategy, etc.

OxygenOS 11.2.5.5 looks like a small security patch bump and fine tuned the system. The update improved charging performance, fixed lagging issue of keyboard. OnePlus camera also got an update with improvements to HDR effect and white balance.

OxygenOS 11.2.5.5 for OnePlus 9 and 9 Pro

Oxygen OS 11.2.4.4 Full Changelog for OnePlus 9 Series

System

• Improved charging performance
• Fixed the small probability lagging issue of
keyboard
• Fixed known issues and improved system
stability
• Updated Android security patch to 2021.05

Camera

• Improved the HDR effect in some shooting
scenes
• Improved the white balance performance of
the rear camera

Network

• Improved the stability of network
Communication
• Improved the performance of Wi-Fi
connection

Download OxygenOS 11.2.5.5 for OnePlus 9 and 9 Pro

The OTA is now live in North America, EU, and India; with OTA download only available for the Indian variants. Here, download and install Oxygen OS 11.2.5.5 for the OnePlus 9 and 9 Pro.

As for the NA and EU variants, get the last available update and go to settings > system updates > check OTA updates.

Firmware Information

Firmware information OP9:
IN: 11.2.5.5.LE25DA
EU: 11.2.5.5.LE25BA
NA(GLO): 11.2.5.5.LE25AA​

Firmware information OP9 Pro:
IN: 11.2.5.5.LE15DA
EU: 11.2.5.5.LE15BA
NA(GLO): 11.2.5.5.LE15AA

Download Oxygen OS 11.2.5.5 for OnePlus 9

LE25AA Global

  • 11.2.5.5: OnePlus9Oxygen (coming soon…)

LE25BA Europe

LE25DA India

Pervious Oxygen OS 11.2.4.4 for OnePlus 9

LE25AA Global

11.2.4.4: OnePlus9Oxygen_22.O.07_GLO_0070_2104122241
MD5: b3be1ffc384aaf3da34da6161e20c561

LE25BA Europe

11.2.4.4: OnePlus9Oxygen_22.E.07_GLO_0070_2104131516
MD5: f33930b57a910287ec478f5b9591417f

LE25DA India

11.2.4.4: OnePlus9Oxygen_22.I.07_GLO_0070_2104122241
MD5: fd00b48b27df554e208a1b1cc550938b

Download Oxygen OS 11.2.5.5 for OnePlus 9 Pro

LE15AA Global

  • 11.2.5.5: OnePlus9ProOxygen (coming soon…)

LE15BA Europe

LE15DA India

Pervious Oxygen OS 11.2.4.4 for OnePlus 9 Pro

LE15AA Global

11.2.4.4: OnePlus9ProOxygen_22.O.07_GLO_0070_2104122250
MD5: 8516d14db37542327082bad18422988e

LE15BA Europe

11.2.4.4: OnePlus9ProOxygen_22.E.07_GLO_0070_2104131519
MD5: 62bbbb4a589b984bbdbd50e9cf463cd5

LE15DA India

11.2.4.4: OnePlus9ProOxygen_22.I.07_GLO_0070_2104122242
MD5: 723bcc518074e15aba448b354b78eafb

Alternatively, you can also download the latest OnePlus 9 firmware update using Oxygen Updater.

Moreover, OnePlus 9 and 9 Pro devices ae receiving ColorOS 11.2 update in China. This may come to the international variants as well.

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