According to SamMobile, many users have reported that the sound quality in voice calls on the Samsung Galaxy S21 has deteriorated significantly, and the manufacturer has not yet fixed the problem.
The problems started after the Samsung Galaxy S21 received the June 2022 security update. The firmware version number is G991USQU5CVF1. Now, users are expecting the next update to fix this issue.
The Samsung Galaxy S21 features a Full HD+ Dynamic AMOLED screen with a 120Hz refresh rate, 1300cd/m2 peak brightness, HDR10+ support, and Always-On Display. The smartphone is powered by a Samsung Exynos 2100 single-chip system from a 4000 mAh battery with support for 25W fast wired charging and 15W wireless charging. He got NFC and stereo speakers.
The main camera is equipped with image sensors with a resolution of 64, 12 and 12 megapixels, the smartphone meets the degree of protection against moisture and dust IP68.