Hi @Arvian, Thanks for the update. I’ve checked with our app team regarding this matter.
They advised that with the latest app version, you should select the fourth option labeled “Upgrade” to perform the firmware update. Could you please run another test? We believe a firmware upgrade will help resolve the issue.
Hello. Thank you for the update. Same results with the update version. As you can see from the screenshot- 9014.10 will be updated on 9014.12 and so on. Again, this updates are RISKY and useless at all. See the screenshots from the Forum please
Hello
Is there any thoughts about the FW update bug?
As you can see on screenshots the latest firmware for AC300 is:
IoT 9041.10
DSP 4053.03
But my two inverters (different inverters: one I bought in EU, another in Ukraine after 9 months) have the same picture: they can be updated only on
IoT 9014.12 (instead of 9041.10)
DSP 4036.30 (instead of 4053.03)
P.S. I need the feature “Grid Power Self Adaptation Mode” but it’s only available in latest firmware 
I have 21% of my batteries and this message I can type ONLY because my Bluetti is still alive!
I am in a military zone. Electricity is a very rare (1
-3 hours per 48 hours) and voltage is near 180. But my AC300 is dropping charging when voltage below 205 volts. What if “grid Power Adaptation…” will bring me the Light?!
Dear @BLUETTI and @BLUETTI_CARE and all Community, you are doing amazing work! Bless you! Thanks so much and please help me 
Hi @Arvian, please don’t worry, this is just a misunderstanding.
Our firmware versions display differently due to different production batches. When upgrading the firmware, only the numbers after the decimal point are involved, and the preceding part remains unchanged.
For example, DSP 4036 is equivalent to DSP A, and devices in the DSP A batch can be upgraded from A1 to DSP A30.
DSP 4053 is equivalent to DSP B, and devices in the DSP B batch can be upgraded from B1 to DSP B30. The two versions are not interchangeable, but both have the latest firmware available.
Please provide us with the respective serial numbers (SN) of your two AC300 units and the corresponding firmware version, and we will push the latest firmware for the B version to you accordingly.
Hi @Arvian, since you have two AC300 units, we are still unsure of the current firmware version corresponding to each one. Could you please list the SN codes of the two AC300s separately and provide the firmware interface screenshots for each? This will allow us to push the new firmware to each unit in a targeted manner.
Hi @Arvian, thank you for your confirmation.
I have applied to upgrade your system to our IT department. If the new firmware is available, they will complete the push within 24 hours.
Please upgrade the firmware tomorrow. Please do not load any device when upgrading it.
Please let us know if it works.
Dear @BLUETTI_CARE
Thanks you so much for the FW! It works!!! Now I can activate Grid self adoption function. It’s a Win-Win situation for me as my grid is like a sh… 
Thank You!!! 
Hi @BLUETTI_CARE
After update I have a problem. Serious problem!
My AC and DC outputs shutting down randomly!
Same situation and all as described here AC 300 throwing 006 SPS voltage low error - #14 by Hmmm
Is there any advice how to fix it? 
Hi @Arvian, I am sorry for the inconvenience.
Regarding this issue, please disconnect all loads and restart the unit. Did this help?
If the error still occurs under no-load condition, a repair will need to be arranged.
If you have any questions about how to reach the appropriate customer service team or concerns about the service process, please send us a private message with your order information so that we can arrange priority service for you.
Hi @BLUETTI_CARE
As my main AC300 unit is not in operational mode due to the dead capacitor (as I mentioned earlier) please, push the newest FW to my backup unit 
Here the parameters of my backup AC300:
SN:2227000169855
Hi @Arvian, thank you for your update.
I have applied to upgrade your system to our IT department. If the new firmware is available, they will complete the push within 24 hours.
Please upgrade the firmware tomorrow. Please do not load any device when upgrading it.
I hope it does help.
