ZE550KL with no IMEI after modem reflashing (please help me)

Hello, since i had gps issues i've reflashed the modem on adb and then erased modemst like this:

mfastboot flash modem HD@modem@ZE550KL@8916@NON-HLOS-64bit.bin
fastboot erase modemst1
fastboot erase modemst2

So the gps seems to be ok now, but the phone data is stuck on edge, and if i force 3g from the settings it doesn't connect at all

so i've putted stock recovery , wiped all data and installed a complete stock update but with no luck.

anyone have some idea?

EDIT: i've noticed that i don't have imei anymore... how to restore it?

need help re-flashing

hi, I have a rooted z5c without the drm stuff left and I tried to update it with flashtool but I must have done something wrong because it failed. I can still get into twrp but not into the system. whats the best way to do it? pre-rooted zip would be nice. doe twrp work with the latest kernel?

Reflashing nexus 5 because of unstability/bootloops

So my brother gave me his nexus 5 because it bootloops, i got it to work for some time, but its still very unstable, so id like to flash the origional firmware on it, as a form of reset, any help? im new on the nexus 5 forum XD

(btw it restarts after a camera error)

Thanks! :fingers-crossed: