SIM 1 random disabled XT1068 (LA version)

Hi everyone:

I'm having this issue almost 2 months ago, my phone start ok, but a randomly sim1 get disabled after random period (could be 5 hours, or 1 hour after phone start) and sim 2 still working ok. I tried several thing with no success:


-Trying enable sim from configuration menu isn't posible, is greyed out when issue happens.
-Rebooting phone is the only way to restore sim 1 conectivity. (only solution for now)
-Tried stopping and starting radio with #*#*4636*#*# menu.
-Tried diferent sim cards on both sim slots, same problem (i guess is not a sim card related problem)
-Factory reset from TWRP.
-Go back to stock image (from 5.0.2 official update) to 4.4.4 RETLA-XT1068 rom image. (Works OK by some hours, then same issue happens.)

Could be a hardware problem on sim 1? , is there any log that can i review? i've searched with logcat trying to get some kind of hardware error. The only change that i can remember that could affect this was a "3g boost guide" that i followed from forum activating vj compression, but that configuration gone after factory reset and restoring room to stock.

Any help aprecciated, sorry about my english.