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HY 3522VMIII 3500VA/3500W

Featured Replies

  • 2 weeks later...

This is a clone, so it may not be possible to update the firmware at all.

What is the present main (U1) firmware version? Unfortunately, the sticker doesn't tell everything needed about the inverter, e.g. the chipset used.

  • 5 months later...
  • Author
On 2026/02/23 at 3:43 AM, Coulomb said:

This is a clone, so it may not be possible to update the firmware at all.

What is the present main (U1) firmware version? Unfortunately, the sticker doesn't tell everything needed about the inverter, e.g. the chipset used.

  • Author
On 2026/02/23 at 3:43 AM, Coulomb said:

This is a clone, so it may not be possible to update the firmware at all.

What is the present main (U1) firmware version? Unfortunately, the sticker doesn't tell everything needed about the inverter, e.g. the chipset used.

U01

4 hours ago, horo said:

U01

That can't be a main firmware version. There should be a page displaying something like

U1

43

90

meaning that the U1 firmware version is 43.90.

But maybe this clone doesn't have standard Voltronic firmware. 3500W is not a common Voltronic power rating.

If it's non-standard, then the change of finding a firmware update for it reduce to nearly zero, unfortunately.

Edited by Coulomb

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