Pixel 4a Battery Performance Program: Difference between revisions

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The serial number is printed on the battery.

You may also be able to run the following command over adb shell to retrieve the serial number:<ref>https://xdaforums.com/t/battery-update-analysis-and-way-to-detect-affected-battery.4716132/</ref>

You may also be able to run the following command over [https://www.xda-developers.com/install-adb-windows-macos-linux/ adb shell] to retrieve the serial number:<ref>https://xdaforums.com/t/battery-update-analysis-and-way-to-detect-affected-battery.4716132/</ref>

adb shell cat /sys/class/power_supply/battery/serial_number

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Google has removed all official images for the pixel 4a except the jan 2025 update, effectively removing official images as an option for downgrades <ref>https://developers.google.com/android/images#sunfish</ref>.

=== Flashing a custom firmware ===

===Flashing a custom firmware===

'''Warning:''' please consider the [[Pixel 4a Battery Performance Program#Safety considerations|battery safety concerns]] before ignoring the battery update. Users must evaluate battery health at own risk.

Another option is flashing a custom firmware ("ROM") onto the device, such as LineageOS, CalyxOS, or GrapheneOS. Custom ROMs have not adopted the closed source kernel changes that reduce the battery's capacity.

Another option is flashing a custom firmware ("ROM") onto the device, such as [[wikipedia:LineageOS|LineageOS]], [[wikipedia:CalyxOS|CalyxOS]], or [[wikipedia:GrapheneOS|GrapheneOS]]. Custom ROMs have not adopted the closed source kernel changes that reduce the battery's capacity.

==References==

@@ Line 116: / Line 116: @@
 The serial number is printed on the battery.
-You may also be able to run the following command over adb shell to retrieve the serial number:<ref>https://xdaforums.com/t/battery-update-analysis-and-way-to-detect-affected-battery.4716132/</ref>
+You may also be able to run the following command over [https://www.xda-developers.com/install-adb-windows-macos-linux/ adb shell] to retrieve the serial number:<ref>https://xdaforums.com/t/battery-update-analysis-and-way-to-detect-affected-battery.4716132/</ref>
   adb shell cat /sys/class/power_supply/battery/serial_number
@@ Line 127: / Line 127: @@
 Google has removed all official images for the pixel 4a except the jan 2025 update, effectively removing official images as an option for downgrades <ref>https://developers.google.com/android/images#sunfish</ref>.
-=== Flashing a custom firmware ===
+===Flashing a custom firmware===
 '''Warning:''' please consider the [[Pixel 4a Battery Performance Program#Safety considerations|battery safety concerns]] before ignoring the battery update. Users must evaluate battery health at own risk.
-Another option is flashing a custom firmware ("ROM") onto the device, such as LineageOS, CalyxOS, or GrapheneOS. Custom ROMs have not adopted the closed source kernel changes that reduce the battery's capacity.
+Another option is flashing a custom firmware ("ROM") onto the device, such as [[wikipedia:LineageOS|LineageOS]], [[wikipedia:CalyxOS|CalyxOS]], or [[wikipedia:GrapheneOS|GrapheneOS]]. Custom ROMs have not adopted the closed source kernel changes that reduce the battery's capacity.
 ==References==