Poor contact between the battery and the mobile phone or the ID code chip of the battery may cause a malfunction of the soldering or internal digital information error, resulting in the phone displaying "non-approval". Unapproved batteries can also be used when the phone is set, but they cannot be used normally when charging with the machine. There is no charge.
Metal Cabinet,Metal Enclosure,Metal Case
Sheet Metal Fabrication Co., Ltd. , http://www.challmetal.com