https://devzone.nordicsemi.com/f/nordic-q-a/17612/flash-behaviour-after-exceeding-endurance-limitHi, I have an nRF52 chip that has likely exceeded the flash endurance limit. I am observing that after an ERASEALL, not all bits are erased, but after retrying ERASEALL multiple times eventually all bits become 1. I have 2 questions. Are theseen-USTelligent Community 13Wed, 09 Nov 2016 02:35:41 GMThttps://devzone.nordicsemi.com/thread/67723?ContentTypeID=1Wed, 09 Nov 2016 02:35:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2eac3176-1e8a-47f8-a672-a1a12e0c6c58Roger Clark<p>I presume you are using the flash for data storage rather than reprogramming the device thousands of times.</p> <p>In which case, as you seem to have exceeded the life of the flash, you should probably consider a different storage strategy or using external storage of some form that does not have the limitation of flash memory. e.g MRAM</p><div style="clear:both;"></div>