Originally Posted by Bernard Warner
Thank you Valente....you are very kind, and I have to say, you English is very good. I will try to answer as best as I can.
The 3 references are:
My SIM is with Orange (United Kingdom).
I am not sure what else you may need, but I have not "Rooted" the phone other than to download the "Region Lock Away" app.
Thank you again,
This is not good. Your Model is a SM-N9000 and not a SM-N900. Is a Chinese Model unknown on Sammobile.
See on Settings / General / About Device... You must have Model number SM-N9000. True?
In this case You not have anything on Sammobile to this device.
See here: http://www.sammobile.com/firmwares/
write N9000 on white box on top right and You see N9000Q nothing for N9000
Anyway if You write there N900 You see many Rom's for many Countries but not for UK. There aren't UK CSC's for N900.
The Rom is a ZC, You can't flash anything from European XX Rom´s over it. And it have a single csc=CHN not have a Multi CSC (a CSC package). I unknown solve Your problem.
In this case I can't help You, is very difficult. Sorry.
Best Regards (Cumprimentos).