Immediate dropped network overseas Alcatel OT Fierce

I have an Alcatel One Touch Fierce, originally T-Mobile, currently unlocked, stock ROM (4.2.2) rooted. It had no connection issues in the US or in Germany, but anywhere in Israel after boot it connects to the mobile network for only a fraction of a second, just long enough to receive a bunch of brand new notifications, and then it immediately drops the network and can't find it again. It does this both on an american T-Mobile sim while roaming, and with a local Israeli sim.

If anyone has a generic fix that worked on any handset that I could try, or anything, I'm kinda desperate here.