Hi all. So, I got my previous problem solved with the Solar X 4K and everything was fine, after updating the software on everything; Solar X 4K, Apex300, 3- B300k, 1 B500k and a B300. No problems for a few weeks, then yesterday, no solar input in the morning and no error code. The same thing happened this morning. I just unplug the Solar X 4k from the battery and plug it back in and it starts charging. This isn’t a big deal, as long as I’m here, but I’m planning on taking a trip and that won’t work for me to run out of power in a couple of days and thaw out the freezer. Anyone have an idea why it’s not charging in the morning?
Hi @Clay1
Did you try to restart the whole setup after the update? Maybe its some kind of communication issue, check that all cables are connected in locked.
greetings
Erik
Hi Eric and thanks for the reply. The system ran flawlessly for a few weeks and now not. Nothing has changed, nothing has been moved and this morning it didn’t work again, but unplugging and replugging in the SolarX4K from the battery didn’t fix the problem this morning, I also had to flip the breaker off and on, on the solar input, in order to get it working agin this morning. I will try restarting the whole system. Thanks again, Eric.
A FEW MOMENTS LATER… Ok, I turned everything off for a couple of minutes. I guess we will see what happens in the morning.
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Well, this morning was worse. I had to disconnect the battery and the solar twice in order to get the Solar X4K to start changing this morning. I’m not sure what to do next. Maybe go back to Amazon and start a case with them. Anyway, thanks Eric, for the idea.
It took three times unplugging the battery connection to get the Solar X 4K running this morning. The past few mornings it worked like it was supposed to. So, I guess I will just keep telling you all how it works.
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Just a thought about restarting the SolarX charging – in the settings for the SolarX (via the Apex300 display in the Bluetti app) there is a “switch” to turn solar charging off and on again. Try toggling that off and wait for a few seconds at least before turning it back on again. I have had a few times where mine stopped charging as well, and I’ve done that to start it again. An advantage is that you can do it remotely.
In my case this has been associated with the issue of the AC output turning off when solar input gets the system to 100%. I have an update that others have had success with in correcting that problem, so I am hoping both issues will be resolved, but it has only been a few days so far since getting that update.
@BLUETTI_CARE
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Thanks for the Reply Hnymann. I’ve had the A/C output turn off too, after reaching 100% state of charge. I will try your app trick, but does it have to be on wifi or can you do it in Bluetooth too? I can’t seem to find it in Bluetooth mode and my wifi is really weak in that part of the house. I may have to get a repeater. It’s strange how after updating the software on everything, a few weeks ago, it worked perfect, then all the sudden not.
Let me know if that update works for you and thanks again.
Since the app can use either bluetooth or wifi then this absolutely works via bluetooth (I have used it both ways). Either way you need to access the SolarX settings via the Apex300’s connection. 
For your reference, and maybe you will need to look into this update as well, here is the link to the discussion of the AC turning off issue: Apex300 AC Output Shutoff.
Thanks Hnymann, I found it and I will try it next time and look up that update as well. Thanks again.
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Hi @hnymann, thank you for your sharing – we find this very insightful.
In addition, we have also applied to push the latest DSP firmware to your SolarX 4K. This may take about one day. Please test it again after the upgrade tomorrow, as we believe the new firmware will deliver better performance.
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Thank you, I will check for that update!