Hello i have S10 Black PORTABLE BLUETOOTH Speaker Wic Is Indeed Chinese and as i am student i really love to experiment on it .but i have no idea how to do it i need help To Access Bluetooth Speaker And Change Welcome Voice .

 

Maybe nobody here has one and has taken it apart to see which parts are inside. Then of course the parts are Chinese and if they have datasheets then they will be printed in Chinese. Maybe the memory is permanent and cannot be changed.