RE: SL1 FW update failes due to invalid certificate
Now you're at latest firmware right
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RE: SL1 FW update failes due to invalid certificate
It's the SL1 without s. I dont know what exactly is happened but its now running the last FW. Anyway thanks for your help, I appreciate that very much 👍 👍
RE: SL1 FW update failes due to invalid certificate
yes
RE: SL1 FW update failes due to invalid certificate
All good
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RE: SL1 FW update failes due to invalid certificate
I struggled with this issue for a while.
If the printer thinks the pre installed security certificates have expired or not valid, then it won't allow the firmware to be installed.
I used the following method to resolve.
1) Download the next firmware along from your current one, i.e. if you are on v1.5 go download v1.6 and not the latest version onto USB stick
2) Set the printer to NOT automatically set date/time
3) Look at the release date of the firmware you are trying to update to, e.g. v1.6 was release on 16th July 2021, set the printer date/time to 17 July 2021
4) Now attempt to upgrade the firmware and it should work!
Now repeat steps 1-4 for each firmware version until you get up to the firmware version you want.
Finally set the printer back to automatically set date/time