This folder consist ONLY SPECIAL firmwares created for specific reqiurements. PLS don't use them if you are not sure they were created for your request.

E910_special_WAN_def_conf.img
Special firmware with allowed remote management from the OLT side in ONU bridge mode. 
IPhost and default gateway can be set from the OLT and ACL allow WEB access. 

X910_1.24.0913_NO_WEB_LAN_RST_3
Special firmware with NO ACCESS to WEB/Telnet/SSH/ICMP to ONU from LAN port.
!!!BE CAREFULL you may loose ONU management after upgrade the firmware!!!

X910_special_DHCP_HGU
Special firmware with DHCP server enable when ONU mode changed to HGU