Something that might help if you are getting a crash after the nintendo logo, If you are using NXthemes make sure to delete the layerFS folder for the installed theme before you update. IF you already updated and are crashing, make sure to go into your SD card goto SXOS>Titles> and delete the one called something like 100000001000 then you will be able to boot into your SXOS, you can then re apply your NXThemes BUT if you are on 9.0> you cannot use lockscreen themes until SXOS implements IPS patches.
hey there, I have similar issue, but mine may be even worse...
I got sxos 2.9.2, FW9.0, I was using it normally until I shut the console down and take the SD card out for some new XCI.
After I put the SD card in and boot into SXOS like what I did before, there is no response (no sxos logo).......... I am not even able to start up the switch in a normal way (no Nintendo logo)....it is completely bricked....any thoughts?