Reached service centre around 12noon, no queue.. Explain to the CSO my M3 is unable to detect simcard network and it will sleep infinite when turned off. She explained must be motherboard corrupted, not what online claims the model is bad. Haha whatever they say since still within warranty. The staff explains they don't work on Sunday and Monday, so maybe the technician can check my phone and get back next Thursday. Left my contacts and left. Three hours later I received a WhatsApp that my phone is ready for collection. I confirmed if it's repaired.
Went back shortly. Checked on off several times no dead issues. Insert simcard cam make phonecalls so I left. Reached home, I insert my parent's simcard into the collected M3, there is network and data, but can't make phone calls And SMS. WTH. I checked with other simcard in the M3 also same.
ARGH. Why it has new error after I reached home