Other Parts Discussed in Thread: BQSTUDIO
We have found that the battery pack of the 4S has entered ROM mode. Some battery packs have entered ROM mode for a period of time, and after the entire battery pack shuts down, it cannot be charged and activated. The BQ4050 can only be charged and activated successfully by powering off and then on again. After activation, the battery is working normally. Why is this type of battery that enters shutdown unable to charge and activate successfully for the first time? Is there a way to reactivate the battery without disassembling the battery pack?
