If you mean by "upstream the data" uploading them over BLE link to the device which performs OTA firmware upgrade then answer is "yes". Just write your custom bootloader/FW which is able to do it with your custom application on the other side of the link.
I mean it's definitely possible but you would need to write your custom bootloader (so e.g it would still run some sensor and log data to NVM while copying code of new stack/app over the old one), I've seen such code. Obviously this is so advanced use case for only few customers that there is no public example available, you need to do it yourself or hire someone who knows the sh**;)
I mean it's definitely possible but you would need to write your custom bootloader (so e.g it would still run some sensor and log data to NVM while copying code of new stack/app over the old one), I've seen such code. Obviously this is so advanced use case for only few customers that there is no public example available, you need to do it yourself or hire someone who knows the sh**;)
