Hello, try to resume old question, me too have same problem, after upgrading to flash 1.2.BF.8.6C2 version (previous installed, 1.2.BF.8.1 works for years), i'm no more able to use ther DSO, only a black screen at boot.
GERM works, cause if a try to load tomcat.ram firmware, all is fine, DSO works, but is not persistent, so at new restart i have balck screen.
Every try to reload tomcat.flash firmware stops after some a while to address 00000000.
Someone can help me how to rewoke the flash boot procedure?
Thanks in advance