HELP HELP HELP!!!!!

can u plz help me i have got a siemens cv65 mobile phone i want to get it dualbanded does anyone know how to dual band phones for free sorry if this isnt the right forum to post this topic but i realy need help

sorry I'm really bad with technology.

No idea rly sorry

sorry. i have no clue at all 😕

hey do u mean unlocking it to all networks 😕 😕 😕

mein toh tootane mein accha hoon aur kuch nahi jaante