I executed "erase all" during update my DSR-250N A1 over console. After this I have fully bricked device

No console. No LAN WAN.
I de-soldered flash IC MX29GL256EHT2I-90Q and read it with T56 programmer. NOR FLASH absolutely empty
I tried simple flash firmware A1_FW1.09B46 over programmer. IC flashed successfully with no errors. I can read/write. but device still no boot. I think FW not have valid boot data.
Maybe someone has a full DUMP of this IC ?
Please help. No service center in my country.