Presented at the lab was a Samsung Galaxy S3 with the familiar boot loop fault.
Upon closer inspection & attempted flashing of a recovery PIT firmware, the fault was apparent – EMMC NAND failure.
Todays mobile devices rely more and more on high capacity, high speed NAND flash memory with ever increasing strain on the memory itself.
Most mobile devices use the internal memory for several intensive tasks from the moment the device receives power.
This all contributes to premature failure & erratic behaviour as the devvice struggles to read/write failing block of the NAND memory