First of all, i erased the modems with the phone rooted using adb commands (erased modemst1 and st2 on the their partitions).
Unroot the phone to open the diagg port typing on dialer *#*#13491#*#*.
Used the QFIL program to restore the phone using a qcn archive who send me a user which...
I solved this.
you have to erase both modems and restore with the program qfil. you need a backup in format .qcn and then you can write your own imeis with WriteDualIMEI_W_G_eMMC. if you need i can create an qcn archive with fake imeis and you can restore with this. then you only have to...
Did you tried this?
after installation ROM, the system directory pulled file NON-HLOS.bin, then fastboot mode and command
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot reboot
Make a efs backup before
I have a redmi 4 prime with no singnal in any slot. I flashed the global rom and the i had this problems. Imeis are ok and read sim but no signal. I flashed all the modems and still the same. I flashed china dev rom and stable rom and nothing. Any idea?
Thanks