What happened: Picked up phone after its usual overnight charge , was showing the normal green "full charge" light but phone was completely dead - black screen, no download or recovery mode via key combo, no response to jig.
No self-reboot, freeze or anything that would indicate a problem prior to phone dying.
What ROM/Firmware: official UK ICS, (can't remember the firmware number now, but whatever the latest official UK unbranded was by mid-October)
What kernel: stock (rooted with cf-root)
OV or UV: Nope
Where phone was made: just says "made by Samsung"! UK sim-free, received 16th June
Where battery was made: Original Samsung battery. Made in Korea, assembled in Vietnam
Anything else that could be of use:
Always left my phones and other toys to charge overnight, been doing the same with the S3 since getting it on 16 June, using the Samsung charger that came with it. No longer doing that with the S3 just in case!
Phone came back with new innards, battery is the one the phone went in with.
As to really getting to the bottom of it, I guess only someone at Samsung might be able to tell us why so many S3 are committing suicide...
Sent from my GT-I9300 using xda premium