Firmware update goes wrongs AC BMS units

Rubicon4xe

Hello all,
Today morning my SBS 4600 Display show 0% SOC. After first check with the app I see two Firmware updates for the AC and BMa module. For the AC update I need several trys. After the update and reboot all looks fine 90% SOC. That was the same SOC from yesterday. Then is see the update for the BMS module. The first install stops by 90% and I hear a peep three times and the display shows SOC 0%. After check with the app I see the BMS version is 0. I try the update serverel times but it works not.
In the pictures you can see the screenshots.
Had a problem like this before ?

Thanks for help Mike Germany near Bonn

theseven

The error codes on your display photos (003 and 004) are communication faults between MASTER and AC as well as MASTER and BMS. The update progress indication in the app isn't always accurate and somewhat delayed. I've seen the app say that an update failed when it actually succeeded. That may be what happened with your AC update. I'm a bit puzzled why you still have a 003 fault though, even though it shows a plausible AC firmware version. If you haven't done that already, you could try a full power cycle by disconnecting all input power and then pressing and holding the power button for 20 seconds. If the 003/004 faults are still present after that, you're probably out of luck. All similar cases here so far never reported a solution, so most likely that SBV would need to be replaced.

Rubicon4xe

Hello checked with full power cycle, display battery SOC is 89% and new errors 004,003,301,309. I need a new idea😄

theseven

You're still getting a nonzero SoC reported despite a 004 fault and BMS firmware version reading as 0? That's odd - and suggests that either MASTER didn't restart during the power cycle attempt (possible if e.g. external power was supplied during that) or BMS communication is intermittent. Weird. The 003 fault is an AC communication error, yet 301 and 309 are faults reported by the AC module through that very communication interface that is supposedly not working. So that also seems intermittent. Why would that happen? I'm running out of ideas as well. I've researched this device quite a bit, but this is something that I haven't seen before. Assuming that the communication bus is at least intermittently working, it might be possible to reflash firmware. Perhaps try doing it via USB instead of online, and perhaps try going back to firmware versions from before these issues began. That said, you'll want to contact zendure email support about these issues, and I have a feeling that this device will end up needing to be replaced.

Rubicon4xe

After a second full power cycle the app say all firmware are actually.. but the solar input is not working. When i connect 230v loading is starting with 2.8kw but the charge time does not chang. I have check the USB stick no files on it. Where I can find the firmware files for the USB stick. Thanks Mike

2 Akkus

[unknown]Der Ausgang des Hubs wird unter Beachtung der maximalen Last, die der Wechselrichter auf einem Eingang verkraftet, an einem Eingang des Wechselrichters angeschlossen, das dritte Panel am zweiten Eingang des Wechselrichters....

theseven

hmm, with the solar input not working, did you get any 1xx error codes? I'm not sure if the firmware files are published anywhere, you'll probably have to ask support for those. They should also hopefully provide some guidance how to proceed with this issue. But please keep us posted on how this was resolved in the end.

Rubicon4xe

Hello theseven I have new screenshots but I can not upade my post . Today morning after full power cycle the SBV display SOC 0% and error 004 and 3 beeps. I post the new screenshots I a new post.😄