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posted 2019-05-06 08:15:45 +0200

[3.0.3] [XperiaX] Battery drain when Bluetooth / WiFi on

After installing the EA upgrade 3.0.3, I'm experiencing massive battery drain when bluetooth and / or wifi is turned on. As soon as I enable bluetooth, the CPU is rarely reaching the sleeping state (it drops from usual 90% down to 10 - 20 %) and the amount of user idle threats increases. With that, the battery consumption increases rapidly (a fully charged battery lasts for 8 - 9 hours instead of 30) and the phone is notably warm all the time. Even turning off bluetooth does not seem to solve the issue until i reboot my phone.

With wifi, the problems are similar but a bit different. Here, the battery drain only occurs when connected to some wifis. If connected to my wifi at home or disconnected, everything is fine. But if the phone i connected to the wifi at my office, i experience the same battery drain as with the bluetooth case (again, low cpu sleep, high user idle). The only differences I see are related to signal strength, which is lower in my office.

Due to the bugs, I downgraded back to 3.0.2.8 since the current state of 3.0.3 (running out of battery in the afternoon) is unusable for me. There are some similar issues reported in the comments to the release notes and regarding bluetooth in older versions.

[3.0.3] [XperiaX] Battery drain when Bluetooth / WiFi on

After installing the EA upgrade 3.0.3, I'm experiencing massive battery drain when bluetooth and / or wifi is turned on. As soon as I enable bluetooth, the CPU is rarely reaching the sleeping state (it drops from usual 90% down to 10 - 20 %) and the amount of user idle threats increases. With that, the battery consumption increases rapidly (a fully charged battery lasts for 8 - 9 hours instead of 30) and the phone is notably warm all the time. Even turning off bluetooth does not seem to solve the issue until i reboot my phone.

With wifi, the problems are similar but a bit different. Here, the battery drain only occurs when connected to some wifis. If connected to my wifi at home or disconnected, everything is fine. But if the phone i connected to the wifi at my office, i experience the same battery drain as with the bluetooth case (again, low cpu sleep, high user idle). The only differences I see are related to signal strength, which is lower in my office.

Due to the bugs, I downgraded back to 3.0.2.8 since the current state of 3.0.3 (running out of battery in the afternoon) is unusable for me. There are some similar issues reported in the comments to the release notes and regarding bluetooth in older versions.

[3.0.3] [XperiaX] Battery drain when Bluetooth / WiFi on

After installing the EA upgrade 3.0.3, I'm experiencing massive battery drain when bluetooth and / or wifi is turned on. As soon as I enable bluetooth, the CPU is rarely reaching the sleeping state (it drops from usual 90% down to 10 - 20 %) and the amount of user idle threats increases. With that, the battery consumption increases rapidly (a fully charged battery lasts for 8 - 9 hours instead of 30) and the phone is notably warm all the time. Even turning off bluetooth does not seem to solve the issue until i reboot my phone.

With wifi, the problems are similar but a bit different. Here, the battery drain only occurs when connected to some wifis. If connected to my wifi at home or disconnected, everything is fine. But if the phone i connected to the wifi at my office, i experience the same battery drain as with the bluetooth case (again, low cpu sleep, high user idle). The only differences I see are related to signal strength, which is lower in my office.

Due to the bugs, I downgraded back to 3.0.2.8 since the current state of 3.0.3 (running out of battery in the afternoon) is unusable for me. There are some similar issues reported in the comments to the release notes and regarding bluetooth in older versions.