Solution for N73 Phone start-up failed:
1- Read 2 PM from working phone
(PM1 from 0 to 307 and PM2 from 309 to 511)
2- Erase 8M - 16M - 32M
3- Flash same version as working phone (read PM from it)
4- Write RPL
5- SX4
6- write PM1 and PM2
7- Full factory and format