There are two types of Android Software Updates 1) Major Updates like Newer Android Versions Oreo 2) Incremental Updates (Security Patch Updates). Security patch updates are very important for Android devices as they come with many fixes of security issues which keep the device safe from malware attacks.

OTA Update Method

This Update is available Via OTA (over-the-air). If your Xperia 10 Plus is not rooted or its bootloader is locked then you Xperia 10 Plus may have already received the May 2019 update as an OTA. To manually check, Go To Settings > About Phone >System Update. But if your Xperia 10 Plus is rooted or its bootloader is locked, then you have to manually Flash / Install the update On Xperia 10 Plus. Other than this, it should be noted that the latest update comes with the May 1st,  2019 security patch which is a very recent security patch released by Google. Note that if you haven’t received the update, you will get the 53.0.A.6.88 May 2019 security patch update on your Xperia devices in the coming days, so be patient. The update brings some bug fixes which were present in the previous build. Along with the minor fixes, It also brings stability and performance improvements. The update is based on Android 9.0 Oreo and comes with 1st May 2019 Patch. Thus, you should download and install the update to your Xperia 10 Plus once the firmware file is uploaded to the internet.

About 53.0.A.6.88 May 2019 Update

Device Name: Sony Xperia 10 Plus Baseband Version: 53.0.A.6.88 Security Patch Level: 2019-05-01 Software Supported: Xperia Flash Tool Android OS: 9.0 Pie

Manual Installation Guide

First, download the right firmware file from the download section Also, you need to have Sony Flash Tool → Download Link and Sony USB Drivers Now follow this guide to flash the firmware update on your device. (the process is same)