welp, thats my issue.
this is:
this is everything i can tell about the phone, and about what i've done trying to fix it (downgrade, upgrade, change laf partition to the original etc):
only works the "back" button. home, options and the dual sim switcher doesnt.
y installed cm-12-something (tried 01-2015 and 04-2015). non of them recognized any sim. most of the times the message at the notification screen is "no sim detected", sometimes it shows the 0% network signal (as an empty triangle, it depends if i put the sim on the sim1 slot, or the sim2 slot, sim2 shows no sim, sim1 shows triangle).
now i think i dont have any root access because of the diferent roms i tried.
when i look at the phone software cm 12 2015 04 18 installed, the 05 24 isnt installed, should i install it?
other things:
the message i get when i try to fing network at the "aviable networks" on the about phone - status is:
network unknown, signal 0, mobile network unknown, out of service no roaming no nothing. (im using 2 diferent sims from the same phone company Movistar Argentina). the phone finds 2 out of 3 (Personal Argentina, but it doesnt find Claro Argentina). when i select movistar the phone is "registering on movistar" , and it fails at it. same with Personal. "your sim card doesnt allow conection to this network" (i can use the sim on any other non-android device).
one thing i see is the model, its d320 instead of d325. no vpn configuration (dont know how to change it).
i tried to restore de laf partition, but i failed, i think the problem is i lost the root. so the lg pc suit doesnt recognize my device.
this message is too long atm, so if u need something to know i ll let u know, thanks for the info u could bring me, and sorry for my poor english.
im open to any advice.
edit: i got the root acces again. also phone brings 0 contacts from sim.
when i try
Settings>> Security>> Set up SIM/RUIM Card Lock.
option is not available. (so i suppose is not sim card for the sim tool kit. i tried to overwrite this too, but failed. and didnt find the original sim toolkit 2)