Vivo S1 October 2021 Security Patch with v8.7.19 Build
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Vivo S1: October 2021 Security Patch

Vivo S1 Software Update:

We come bearing exciting news to all Vivo S1 android smartphone users!!

Vivo S1 is the first smartphone under the S series in India. It has received its October 2021 Security Patch Update, with an update on security details with system optimization on Android 11, with its build number PD1913F_EX_A_8.7.19 and updates size of 183.67 MB

Vivo S1 was released on 17th of July, 2019 with Android 9 Pie Out-of-the-box

The October Security Patch aims towards improving security details, optimizing system software, network stability and automatically enabling Bluetooth.

Update Details:

  • Device: Vivo S1
  • Android: Android 11
  • UI: FuntouchOS 11
  • Build number: PD1913F_EX_A_8.7.19
  • Security Patch: October 2021
  • Update Size: 183.67 MB
  • Update Type: Security Update
Vivo S1 October 2021 Security Patch - 1
Vivo S1 October 2021 Security Patch - 2

Source: YouTube User

Official Changelog

  • System
    • Updated to the October 2021 Google Security Patch to improve system security.
  • Bluetooth
    • Fixed the issue where Bluetooth is occasionally enabled automatically in some scenarios.
  • Network
    • Optimized Network adaptability stability

Related : Vivo S 1 Pro Android 12 Update? | Will it get updates after Android 11 or no?

How long did Vivo S1 take for a major update to install?


As mentioned earlier, Vivo S1 was released on 17th July with Android 9 Pie Out-of-the-box.
It has released its October Security Patch, with Android 11, along with system optimization, heavy update on security details and fixed some known issues.

  • Out-of-the-box: Android 9 Pie
  • First update: Android 10
  • Second Update: Android 11


How to Install the latest update on your Vivo S1 device ?


Installing the update is very simple. Once, the update is available on your Vivo device, just follow these steps:

  • Navigate to Settings
  • Go to About Phone
  • Software Update
  • Download and Install the latest security update on your smartphone
Reminder:  The update does not delete or modify your usage data. The system upgrade does not occupy the phone memory space and doesn't affect the running speed of the phone.


During the upgrade process, the temperature of the phone will rise slightly for a short time and will return to normal after the upgrade is completed.

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