Try without the main battery, be careful with the connection
Try a main board reset
You don’t say what version of 13" you have.
Please search there are lots of topics on this. Another makes it even more difficult to find. So id you search the forum for similar problems and try any of the recommendations?
Do you still have a warrantee and have you contacted support ?
okay after a long back and forth with tec support to solve anybody alse is issue in standalone mode for the AMD Ryzen™ 7040 Series you will need to by this 16-rtc-battery-cable here: Framework as with out it can not run in standlone mode. I have let them that this is silly to have done when they spificaly want there old boards to be used in standlone mode when they are upgraded. they should probaly contact all the people who bout one and say hey it dosnt work like you think it dose