Dear Khun Anuson,
Could you please kindly advise to give us more details on this failure?
1] On the failure board from your end-customer, is it damaged on L6258EX device only or there also have another damaged parts?
2] What kind of the damaged on the L6258EX device (short circuit, burnt, broken, …etc) ? Please kindly help to take a picture on this device or failure board.
3] How many pieces you received the failure boards from your end-customer?
4] Please kindly also help to take a picture on the label box so that we can trace back on the date code.
Please kindly send the failed L6258EX devices to STMicroelectronics BKK Office as below attentions and address directly. Thank you.