Originally Posted by hoangps
I has just bought N9005 a few days ago.
But not display enter code area when insert my sim card?
How to unlock with code or do antything?
I doubt it is carrier-locked, it looks more like region-locked.
Also in this case it might be a problem since for Vietnam (XXV, XEV) the original Samsung version was N9000 (the Exynos one) - and I believe there is no N9005 firmware with a CSC corresponding to XXV or XEV.
You should probably look around for other owners/users in Vietnam.
If you find nothing you should try to insert an EU SIM and see if it works (assuming the N9005 was bought in EU, otherwise a SIM from the country from where it was bought).
In the future when you need help you might see more feedback if you provide more details - for instance your current firmware in the phone , you can see those after *#1234# , also reading and searching around the forums here has never hurt anyone
N9005 Universal Root De La Vega / Mobile Odin Pro, Knox 0x0, MJ7