Sony promises to fix Xperia Z5 “low in-call volume” issue in April
Specifically, Xperia Z5 users claim their smartphones have issues with the in-call volume after updating to Android 7.0 Nougat. Many have already taken it to Sony's official support forums to complain they experience low in-call volume issues on their Xperia Z5 phones.
The update is expected to hit Xperia Z5 units sometime in mid-April, but since it will be rolled out in stages, timings and availability may vary by market and carrier.
In the meantime, the Japanese company offers a workaround for those who are affected by the issue. According to Sony, performing a factory data reset should eliminate the problem. However, make sure that you backup data stored on the internal storage before doing a factory data reset.
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