Chinese state-run broadcaster CCTV on Monday night spent 30 minutes analyzing the problems of Samsung mobile phones.
CCTV repeatedly broadcast the complaint of one Galaxy S owner who said he bought the phone only nine months ago and it frequently went dead. It accused Samsung of using faulty multimedia cards.
It also interviewed mobile phone technicians and other customers saying that the Galaxy S and Galaxy Note are prone to problems although they cost 4,000-5,000 yuan, almost a month's salary.
Early this month, CCTV aired a program which allocated 15 minutes to slamming the cost of replacing the displays on Samsung mobile phones, while state-run news agency Xinhua ran articles about a Galaxy S4 battery exploding and questioning the reliability of Samsung phones.
Samsung easily tops China's smartphone market, which is worth US$80 billion, with a 19-percent share.
The firm has pledged to investigate the complaints.