i have this problem with other hox , and airplane , no wifi no baseband and NO IMEI
but have imei in bootloader .I understand my imei not completely dead, i have other hox not have imei in bootloader.
for this hox have imei in fastboot and my imei back easy.
my main version is 3.14.707.24 i flashed the ruu but after flash imei not back
i just reboot bootloader via adb: adb reboot bootloader
in fastboot i see info my hox via : fastboot getvar all
after see the info i JUST REBOOT RHET BOOTLOADER VIA : FASTBOOT REBOOT
after reboot my imei BACK
It's funny but I think it could be easy to resolve the problem