9:22:16 PM
arstechnica.com1 day ago

Pixel 4a's Fiery Secret: Google's Update Was a Desperate Attempt to Prevent Battery Explosions

Uncover the shocking truth behind Google's mysterious Pixel 4a update: a hidden risk of battery overheating and potential fires that Australian authorities exposed, while Google downplayed the danger.

Pixel 4a's Fiery Secret: Google's Update Was a Desperate Attempt to Prevent Battery Explosions

Not being on fire is a performance program.

Google's mandatory software update for the Pixel 4a, an Android phone from 2020, earlier this year raised eyebrows. The update crippled battery life, leaving some models practically unusable. While Google remained tight-lipped, Australian authorities have revealed the alarming truth: the update was a desperate attempt to mitigate battery overheating and fire risks.

Was Your Pixel 4a a Potential Fire Hazard? Australia Said YES!

The Australian Competition and Consumer Commission's (ACCC) Product Safety division issued a recall for the Pixel 4a, citing that Google's firmware update and battery changes aimed to "mitigate the risk of overheating" because "an overheating battery could pose a risk of fire and/or burns to a user."

Australia made explicit risks of "fire and/or burns" for non-updated 4a models.

[Clarification: The recall specifically targeted Pixel 4a models that had not received the update.]

Google's Muted Response: "Battery Performance Program"

In stark contrast to the ACCC's explicit warning, Google's messaging in the US and elsewhere avoided the term "recall." Instead, Google presented a "Pixel 4a Battery Performance Program," stating that "certain" Pixel 4a models "require a software update to improve the stability of their battery’s performance," which also "reduces available battery capacity and impacts charging performance."

Google claimed it is still safe to charge a Pixel 4a.

A Google spokesperson told Ars that the ACCC notice pertained to a "battery performance issue that affected a limited subset of Pixel 4a devices." The spokesperson emphasized that Pixel 4a devices with affected batteries remained usable and directed users to a device checker to determine eligibility for appeasement.

The "Appeasement": A Band-Aid on a Burning Problem?

Australia's notice directs users to Google's device checker and appeasement options:

  • A $50 USD payment
  • A battery replacement
  • Google Store credit (for not-on-sale Pixel phones)

Google's support page states that its update and remedy options are separate from statutory rights provided in various countries.

The Real Cost: Crippled Charging and Battery Life

Google's update drastically reduced the charging potential of affected Pixel 4a devices, essentially cutting it in half. One Ars staffer experienced a battery life plummeting to less than two hours on a full charge.

One Ars staffer saw their Pixel 4a battery life drop to less than two hours on a full charge.

Hardware analyst Hector Martin discovered that the updated Pixel 4a kernel contained code that identified batteries with either "ATL" or "LSN" profiles. Those with the LSN tag—potentially the battery cell maker Lishen—had their charging capacities capped.

The Unanswered Question: Was Your Pixel 4a a Ticking Time Bomb?

While Google downplayed the issue as a "battery performance" problem, the ACCC's recall reveals the severity of the situation. The update, while crippling performance, was likely a necessary measure to prevent potential fires and burns.

The Pixel 4a saga raises a critical question: How transparent should companies be about potential safety risks, even if it means admitting a design flaw?