Apparatus with post-manufacturing data update mechanism and methods for operating the same

A method of assembling a memory device that includes rewritable memory cells, the method comprising:

• preloading content on the memory device by establish initial levels of stored charges in the rewritable memory cells;
• after preloading the content, attaching the memory device to a substrate by reflowing solder at increased temperatures;
• dynamically generating a shift measure based on scanning the rewritable memory cells using a scan-read position,
• wherein the shift measure represents one or more changes in the initial levels of the stored charges caused by the increased temperatures,
• wherein the scan-read position is a threshold voltage different from an initial read position predetermined for reading the preloaded data;
• and
• dynamically generating a post-deployment message based on the shift measure for notifying a user that the preloaded data has been corrupted by the environmental stimulus.

A method of operating a memory device that includes rewritable memory cells having initial levels of stored charges representative of preloaded data prior to an environmental stimulus, the method comprising:

• dynamically generating a shift measure based on scanning the rewritable memory cells using a scan-read position,
• wherein the shift measure represents one or more changes in the initial levels of the stored charges caused by the increased temperatures,
• wherein the scan-read position is a threshold voltage different from an initial read position predetermined for reading the preloaded data;
• and
• implementing a response action based on the shift measure to address the one or more changes in the initial levels and maintain accessibility for the preloaded data.