Exaqua PRO3 – Firmware 2.16 – ERROR 123

Hello everyone,
my name is Laura, I’m from Italy and I purchased an Exaqua PRO3 photometer only about 48 hours ago.
My PRO3 currently has firmware version 2.15.150623 installed. According to the information I found, firmware version 2.16 should be available.
I tried to update the photometer via USB following the Exaqua procedure, but every attempt ends with ERROR 123.
I also connected the PRO3 to ExaquaReporter via Bluetooth. The connection works correctly, but the application reports that firmware 2.15.150623 is “Up to date” and does not offer version 2.16.
Has anyone experienced the same problem?
Were you able to update a PRO3 from 2.15.150623 to 2.16? If so, how did you do it?
Is firmware 2.16 intended for all PRO3 units, or is it possible that my particular hardware revision does not support this update?
Could this behaviour indicate a faulty unit, considering that the photometer is brand new, or is it more likely to be a software/update compatibility issue?
The photometer otherwise starts and operates normally.
I would be very grateful for any experience or advice from other Exaqua PRO3 users.
Thank you very much for your help!
Laura

Hello,
I haven’t updated my device in quite a while, but I would suggest contacting their support team first - they should help.
https://exaqua.com/contact/

Thank you very much for your reply! 😊
I have already contacted Exaqua support and I’m currently waiting for their response.
If I receive any useful information about ERROR 123 or the firmware update, I’ll post an update here as well.
Thanks again for your help!
Laura