@Diorges Did you find any way to update the OLT?

Reach out to the manufacturer or vendor directly. They might be able to provide you with the latest firmware or direct you to the appropriate resources. Review any documentation that came with the OLT P1201-08, including user manuals or installation guides. Sometimes, firmware download information is provided in these documents. Search for forums or online communities related to the specific OLT model. Other users might have shared information or direct links to the firmware you need. Some networking devices allow firmware updates through their web-based interface. Log in to the device and check if there's an option to update firmware within the settings. If this OLT is part of a larger network infrastructure, consult with your IT department or a networking specialist. They may have access to firmware files or know where to obtain them.