Hi there, im new in wp phones, so dont be angry if im askin some stupid question :P
The first is, that im from hungary with this sw 1750.805.8773.12220 RM-801 T-Mobile Hungary HU Black V4 (059N2N2) with simlock.
Can i upgrade with this? 1750.823.8858.12460 RM-801 VAR EURO1 GB CV MBLACK (059L7C2) and can i use it with my sim? is it operator dependend? cuz t-mobile hungary isnt on the list till now
and if something goes wrong can i downgrade for the orig t mobile sw? thank you for your help