Alcatel OT Fierce dropping network overseas

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 a T-Mobile sim while roaming, and with a local sim.

I was unable to find any posts with similar issues for any handset, and I couldn't find a dedicated forum for my device to make a post. If I could get any help with this that would be amazing, thanks.

Question about overseas charger

I have bought this charger which I thought was UK... It seems it's US plug even if we have 220v compare to 110/20V in the US... But I was using a UK to EU adapter causing the seems to be original charger ti have a hell of slow charging and sometimes even drain if i was using tunein while charging... I wanna ask that by using a wrong adapter I'm loosing power or just that this charger sucks? Thanks




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