>What makes you say that?

Let's pretend that the 1Gb of app memory is divided into banks.

And let's pretend that we have an OS that pages apps into and out of memory as and when required

And let's pretens the OS is multitasking and deals with protected memory

Now let's starts an app. It *might* or might not attempt to load (some of itself) into the dodgy page of memory.

If it *does* that would cause it to abend. But the excellent OS would prevent this from affecting other apps.

If it does not, the app starts OK. But parts off it might get paged out of memory and then paged back in to the dud page as we continue to use the phone and launch and stop other apps. If it pages into the dud page, we abend.

The OS itself might get paged into the dud page, which will casue an OS reboot.

Frankly the symptoms I'm seeing fairly closely match this scenario. I think I have at least some dud RAM ( and cannot as reasonably be explained away as a software issue)