On Aug 7, 2020, at 08:32, Hugen <hugen@...> wrote:
?Sorry, I will check the additional battery check items and Maggie will send you a new tinySA as soon as possible. Please help check whether vbat displays 4.2V after removing the battery. If it displays 4.2V, it means the battery is faulty, if not, it means the charging IC is faulty.