| Hi, (soon to be ex) Pixel 4a user here. Regardless of why this update has happened, the way Google have went about this update is sketchy at best, and deceitful at worst. To be plain: this phone has been EOL for 1½ years now. This update has appeared out of the blue and specifically decimates the battery + charging capabilities. My most charitable view is that Google have found a major fault with the Pixel 4a battery and want to mitigate a repeat of the Galaxy Note 7 without saying it outright and causing a panic. My least charitable view (and immediate reaction) is that they're purposely ruining a viable budget phone to make more sales. Either of these are terrible. At no point has Google came out and stated -why- they're pushing this update in the first place. And as someone who hasn't updated I'd really like to know if my phone presents an immediate threat (and I'm sure Governments and airlines would also like to know) before I remotely consider an update that'll practically destroy my device. On top of this, within a day of being notified about this update, Google drastically raised the price of new Pixels on their store. Again if I'm charitable it could just be automatic global market price updates, but that goes out the window when Google must have prepared this update, FAQs, support plans, etc, then released it just before said price updates. The $100 discount recourse doesn't go far when the 8a jumped from £379 to £499. It's hard not to feel suspicious about it. While I'm here, I did briefly write about my experiences with the 4a, though I'm far from a competent tech writer: https://callmeo.live/blog/ode-to-the-pixel-4a/ |
Unlock the bootloader, then install LineageOS, MindTheGapps, and Magisk.
Once you have Magisk stabilized, install the Advanced Charging Controller, and configure it to halt charging at 80%.
That should solve your problems, and turn the updates back on. I don't think there is a way to make Google Pay work in this configuration, which is a drawback.
I can put all the URLs here if you ask.
Edit:
https://lineageos.org/
[I did not remember that Lineage hosts gapps images]
https://wiki.lineageos.org/gapps/
[IIRC, the APK is renamed to a ZIP and flashed with recovery, then name it back and install the app]
https://github.com/topjohnwu/Magisk/releases/tag/v28.1
https://magiskmanager.com/
https://github.com/VR-25/acc/releases/tag/v2023.10.16