How to change the region of your MT7-L09?

Hi guys,

My phone is originally from Colombia. Since I was anxious to get on Lollipop I ended up flashing my phone with the B137 UPDATE_CUST.app, which now only allows me to flash the European firmware. I would like to get back to the Colombian version, but I'm unable to figure out, how? I have tried flashing a vendor.img with hw/nla, but it failed with Command not allowed. I took a look at the files that are included in the B137 UPDATE_CUST, in the hopes that I could create one for B120, which is the version I am currently on, but I have absolutely no idea how to go about it. I would really appreciate any advice and help I can get.

Thanks!

$375 Mistake - PSA - MT7-L09 NOT COMPATIBLE on Cricket or Straight Talk in US

Well, I guess I learned my lesson 5 later lol. Hopefully I can at least get some of my money back for the phone on Ebay. I asked around on several different sites and got a lot of mixed reviews on whether the MT7-L09 worked in the USA and heard pretty good things for the most part but no definite answer. So I just compared the bandwidths best I could and went for it - bad idea.

Not compatible with Cricket (will show 4G but service bounces in and out and can't download anything unless connected to WiFi).

Not compatible with Straight Talk - haven't actually tried it but asked their customer service and they said the IMEI number is not compatible.

Soooo just wanted to put this out there for anyone else who might be trying to figure it out. Learn from my mistake!