Answer of your leaving message
I have two cameras, however iCRa0ae1b looses internet connection all the time and I keep on reinstalling it. Now I tried to upgrade the firmware to v4.3.3. It still does not work. When I try to reset it now it turns of after the resetbutton is pressed for 30s.
The other camera iCRa0ae1h is no problem with.

2017-12-18 15:11:55****************************************
The problem remains. The blue ligth never starts blinking. It it like the motor calibration/rotation never stops.

by Johan Ivari

Dear Johan, thank you for contacting.

If the camera failed to response to hardware reset ( = blue light blinking to wait for new installation ), we may need to perform the manual firmware rebuilding

A. Please must use this tool to format the SD card on PC
Rebuild the firmware from the external SD card : 
This is a manual re-build firmware procedure for your reference
(recovery and cure rate is more than 90% )
Download file [PC]
- Uncompress/unzip it to root directory of a MicroSD card [PC->SD]
- Insert the card to iCam or iBabi
- Plug power cord of it. CAM will auto detect the codes in the Card
to do the update ( blue light is on )
D. Auto motor calibration/rotation (About 40~50 seconds)
- Wait till front blue led is blinking. (About 2-3 minutes)
- Unplug power cord
- Take card out.
- Plug power cord again and the blue led will keep blink ( waiting for installation )

Installation: / If you are successful, please erase the card for normal use.

PS – this is what you see during the process
Insert the card with unzipped files
Plug in power
Short beep ( camera detect and read the files ) in 5 seconds
After about 40 seconds
Two short beeps ( writing complete )
Blue and Green lights blinking – done ( wrote in )
Unplug the power
Remove the SD and erase it

Dear Johan, have you tried the manual firmware update as last reply? As long as the blue light is on (power through), the SD card update method is a good way to recover the camera. Thank you