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Galaxy S21 February security update reportedly causes battery life issues



A fairly large number of Galaxy S21 owners complain about poor battery life Reddit and a few other forums, and the February 2021 security update that began rolling out last week may be guilty.

All customer complaints come from people who own the Exynos variant, but it should be emphasized that the problem most likely stems from software instead of Samsung’s new hardware. And according to some users, the battery can be drained at an accelerated speed due to a mobile connection issue. According to affected Galaxy S21 owners, battery life falls within normal parameters when flight mode is enabled.

There seem to be many complaints regarding the Galaxy S21 and Galaxy S21 +, especially while the Galaxy S21 Ultra is barely mentioned. Unfortunately, we can not confirm exactly how this issue occurs, and whether it affects the Galaxy S21

Ultra at all, as none of our Exynos-powered Galaxy S21 models have been affected by this issue.

As mentioned in our Galaxy S21 + review, the battery life is not out of this world, but it is decent. Galaxy S21 Ultra left a much more positive impression with battery life that is surprisingly good even with 120Hz enabled. However, the base of the Galaxy S21 model has an average battery life that fails to impress.

Samsung is aware of the issues and is working on a solution

Samsung is apparently aware of these unwanted symptoms that affect the Galaxy S21 series after the update, and according to the Norwegian technical blog Tek.no, the company is working on a new firmware update to fix the issues.

The company has not revealed a time frame, but it is possible that the upcoming security update in March 2021 will solve these newfound battery life problems, provided that a quick repair is not released before. For now, we recommend Galaxy S21 owners to avoid the security update from February 2021 until the issues are resolved.


  • Model: SM-G991B
  • Dimensions: Rod: 151.7 x 71.2 x 7.9 mm
  • Show: 157.48 mm dynamic AMOLED 2X
  • PROCESSOR: Exynos 2100
  • Camera: 12MP


  • Model: SM-G996B
  • Dimensions: Rod: 161.5 x 75.6 x 7.8 mm
  • Show: 6.7 inch / 170.18 mm dynamic AMOLED 2X
  • PROCESSOR: Exynos 2100
  • Camera: 12MP


  • Model: SM-G998B
  • Dimensions: Rod: 165.1 x 75.6 x 8.9 mm
  • Show: 6.8 inch / 172.72 mm dynamic AMOLED 2X
  • PROCESSOR: Exynos 2100
  • Camera: 12MP




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