sorry for the delay, i’ve gotten myself a bit confused which problem we’re trying to solve. let’s start over to identify the way forward:
- original problem was that you couldn’t save new configuration settings from the front-end, followed by
- couldn’t log in using ssh since it seems the password has changed
so, before you overwrite your SD card, which will erase all data there, i think you should do a simple power-cycle. first try from the front-end
ACTIONS::ACTIONS::Reboot. when that doesn’t work, power-cycle the unit by unplugging, waiting 30 seconds, and plugging it back in.
as for data, re-burning the SD card will result in all data being lost previously existing on the disk. if you want to save the data collected to this point (your save-data setting is set to seven days), you can download the data files through the front-end
ACTIONS::DOWNLOAD::DATA button before re-burning your card.
if your password is indeed lost, and the front-end is not allowing you to proceed with pw-required options, you will need to re-burn the card in order to reset the PW back to the original. to answer your question in your first post: no, it is not possible to reset the password while retaining all other data on the SD card.
and it has just occurred to me: perhaps pop-ups are blocked by your browser? when the password is not the default, when you make some change via the front-end a pop-up will display asking you for your password. if this is the case, perhaps this explains the “hang” you were seeing when you couldn’t save your configuration settings originally?
please let me know what you end up trying and what happens.