over in the "Samsung Galaxy J7 (2017, CDMA) / J7 Perx / J7 V" discussion:
Audio Out Volume
The new J7 V seems OK except for the volume of the audio out. Even held up to my ear I can hardly hear the audio during a cell phone conversation. After talking for ~10 minutes the audio decreases by a quarter and cannot be understood. This; compared to using a Samsung S5 and Samsung S8 which offer "standard" audio out. . Anyone else fixed this ? How ? Thank you. . I left it out in the truck but shall add the serial number in a later transmission. Perhaps others with a close serial number suffer similar discrepancy and should be avoided.