@powerlines2000
I had a similar issue, not sure its the same but try this:
Control > bed leveling > Probe Z Offset > [use the dial to select the desired offset]
Go back and select 'Store settings' (scroll down to find it)
and once more Go back and select 'Store settings' (scroll down to find it)
Also, one thing that drove me nuts was that if you don't keep the SD card in the SD card slot your settings will be gone if you turn the printer off. So make sure that your SD card is in all the time, during settings and during print...
Hope this helps.

ok, i understand,
Where can I find the latest version for the Ender 5 pro firmware without the BLTouch?
its not that clear.
or do i need to get the BLTouch to get the latest firmware version?
currently my printer info state:
Marlin
Ver 1.0.1
2020-4-25
any help is appreciated.

@powerlines2000
I had a similar issue, not sure its the same but try this:
Control > bed leveling > Probe Z Offset > [use the dial to select the desired offset]
Go back and select 'Store settings' (scroll down to find it)
and once more Go back and select 'Store settings' (scroll down to find it)
Also, one thing that drove me nuts was that if you don't keep the SD card in the SD card slot your settings will be gone if you turn the printer off. So make sure that your SD card is in all the time, during settings and during print...
Hope this helps.

hi,
is it normal that the main extruder fan always on at full speed? it seems that it works at 100%. what is the expected noise level for this fan?

@admin I have done store memory but it doesn't save it after turning the printer off. do I have to keep the sd card inserted all the time?

@admin any answer on this? no matter how i set the z offset using the control panel or using gcode the z offset does not saved in the printer.
please help.

@admin I don't understand. if i send gcode to printer to save it on the motherboard the ender 5 pro does not have this feature? i thought this is EEPROM
when i try to save the Z offset settings from the printer or using gcode the printer does not save it. what is the issue then? please explain.
Thanks,
David

@admin any answer on this issue? it seems that no matter what I do the printer does not save the z offset if the printer is turned off.
It seems that the printer doesn't save the Zoffset into the printer EEPROM. this a technical issue and might point to a defaulty main board. can you please ask your engineers what to do to resolve this. every time i want to print after setting the printer Z offset and turning off the printer for a few hours the print start way far from the bed. i have to set the Z offset over and over again to get the print after turning the printer off and sometimes even between prints.
Please help!!!!

Hi,
I'm trying to set my z offset using marlin gcode instead of using the control panel.
when i send the 'SENDING:M500'
I get: 'echo:No EEPROM.'

EEPROM is where some of the data is stored and for some reason it seems that the one on my ender 5 Pro does not exist or its damaged. this is a 4 weeks old printer.
please help.

Thanks,
David

@admin
I have installed BLtouch as you described in https://forum.creality.com/topic/340/ender-5-pro-v4-2-2-bltouch-installation-question/5
I followed all the instruction and run into a strange behavior.
when i send a print to the printer the print start way far from the nozzle so the filament come out in the air!
the z axes offset is set to -2.3. the print bed at the beginning of the print (when the nozzle start to extrude filament for print) is at z axes +28. way too far.
do I need to adjust this manually during print? this can cause damage to the bed, nozzle and printer overall.
what am I missing?
Thanks,
David

@admin I have fully followed the instruction in the video, offset the z measurement.
i noticed that the movement on the z axes can be more then the limits, this can damage the printer.
is there a way to limit the endstops in the software? I think I saw something in Marlin that the software limits can replace the endpoint switch.
after all we removed the z end switch and nothing prevent the bed to go up beyond the max point.
can it be done using the control unit?
Please advise,
thanks,
David

Hello,

Is there a way to connect the laser engraver constantly to the board or do I need to switch the blower fan with the laser every time I want to use it?
Does that mean that I need to reconnect the blower fan back when I want to use the nozzle for printing?
Ideally there will be a connection for each without the hassle of opening the board and replacing the connection between print to laser.

Please advise,
Thanks,
David