I have a ESP-88 and it was on FW 4.62. By mistake i opened it with CS 3.2 and upgraded to 3.2 FW. By the time i realised that I have clicked wrongly, it was already upgrading - downgrading to FW 3.2.
Now after reboot, the status light is RED and it won't ping default ip 192.168.0.160.
Can I do a factory reset ?
For the ESP88/00 you can update the firmware via the serial port (long process).
Download attached application "CSSerialUpdate.exe" and save it the bin folder (by default: C:\Program Files (x86)\Bose\ControlSpace 5.4\bin"
Make a serial connection between you PC and the ESP88.
Do not power the ESP88 yet.
Select COM port
Select the correct firmware (esp_v4.630.frm)
Click on Update
Power the ESP88
Update process should start
Hi Arno, It is a success ! I went to 4.4.2 firmware 4.62.
I have few other questions. I will try to message you or see if I can find in the forum.