Here is where you can download security March 2020 update based on Android 10 for Google Pixel phones. The new March build brings loads of new bug-fixes, improvements and enhancements all over. It has one of the longest change-logs we have seen for quite some time now and we recommend you update to it immediately. If you are currently testing Android 11 R on your device, download official March 2020 security update factory image for your Pixel phone with this article and flash it manually.
Google, every month, releases a new security patch for Android overall. Using this commitment to its advantage, it simultaneously releases new software for Pixel phones that not only integrates new security patch but also comes with various other features. For March 2020 update, there have been changes that address UI, camera, system and much more. The official change-log is attached right ahead for March 2020 Pixel security update.

Google Pixel Security Bulletin – March 2020 Update
List of devices that are eligible to install March 2020 security update factory image are: Pixel 4 XL, Pixel 4, Pixel 3a XL, Pixel 3a, Pixel 3 XL, Pixel 3 and Pixel 2 XL, Pixel 2. Original Google Pixel series, as mentioned, would not be getting this update.
Prior to making these images available for manual download, Google starts pushing them directly through their update servers to compatible devices. We did see Check for Update functionality, which is built-in to the Android system, being fixed in the previous build so hopefully, it wont be causing any problems this time around. To check for an available update, go to Settings > System > System update > Check for update.

Functional Patches:
Here are all the key changes that Google has introduced for its Pixel phones within March 2020 security update:
Category | Fix / Improvement | Devices |
---|---|---|
Apps | Fix for certain app overlay elements stuck on home screen | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Audio | Disable Now Playing for music played on Cast devices | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Audio | Fix for static noise during audio capture | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Audio | Improvements to bottom speaker driver | Pixel 4 |
Bluetooth | Improvements for Bluetooth connectivity with certain fitness tracker devices | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Camera | Improvements to auto-focus in camera | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Camera | Fix for camera crash when switching to video mode | Pixel 4/XL |
Camera | Fix for camera auto white balance color in certain scenarios | Pixel 4/XL |
Connectivity | Fix for unrecognized USB accessory | Pixel 4/XL |
Face unlock | Fix for stuck lock screen after device unlocked with face | Pixel 4/XL |
Face Unlock | Fix for incorrect text translation in Settings | Pixel 4/XL |
Motion Sense | Improvements to visual feedback for Motion Sense gestures | Pixel 4/XL |
System | Kernel update to 4.14.150 | Pixel 4/XL |
System | Kernel update to 4.9.200 | Pixel3/Xl,Pixel 3a/XL |
System | Kernel update to 4.4.200 | Pixel2/XL |
System UI | Improvements to animation for quick switch in gesture navigation | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
System UI | Fix for undismissable emergency notifications | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
System UI | Fix for broken live wallpapers on some devices | Pixel 3a/XL |
System UI | Improvements to notification icon display in dark theme | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
System UI | Clarified dark theme helper in settings | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Telephony | Fix for undismissable location access notification after emergency call | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Video | Fix for corrupted video playback in certain apps while using Picture-in-Picture mode | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Video | Improvements to 4K video playback performance | Pixel 2/XL, Pixel 3/XL, Pixel 3a/XL, Pixel 4/XL |
Video | Fix for corrupted video playback in certain apps after locking screen | Pixel 3/XL,Pixel3a/XL,Pixel4/XL |
Wi-Fi | Fix for last Wi-Fi network configurations | Pixel 2/XL, Pixel3/XL, Pixel3a/XL, Pixel4/XL |
Download Google Pixel March 2020 Factory Images
Here are the download links for those who want to flash March 2020 update on their phones manually without waiting for the over-the-air update to arrive or are currently running custom ROMs / mods:
NOTE: Original Google Pixel, Google Pixel XL and also, Pixel C has been dropped from support, there will be no further official software updates for the tablet.
Download March 2020 Update for Pixel 4 XL: Download Factory Image
Download March 2020 Update for Pixel 4: Download Factory Image
Download March 2020 Update for Pixel 3a XL: Download Factory Image
Download March 2020 Update for Pixel 3a: Download Factory Image
Download March 2020 Update for Pixel 3 XL: Download Factory Image
Download March 2020 Update for Pixel 3: Download Factory Image
Download March 2020 Update for Pixel 2 XL: Download Factory Image
Download March 2020 Update for Pixel 2: Download Factory Image
NOTE: If installing these factory images on your Google Pixel or Nexus devices, you also need the latest fastboot tool. You can get it from the Android SDK Platform-Tools package, which you can download here.
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[Via Android, Pixel Community Bulletin]