my eb3a not charging

please help. my bluetti won’t charge always blinking ups on the screen when I connect it to an ac outlet. I don’t have any means if charging expect the AC.

what can I do to stop the ups from blinking so it can start charging?

@nerg Did you load a device when you charge EB3A with the AC charging cable? And did you try another AC charging cable?

still not charging,
brings up blinking ups
and it won’t stop blinking,
I have no other means of. charging except the AC outlet. what can I do to stop you ups so I can start charging jao

@nerg Please try to adjust the frequency of the EB3A to check if it works.