Please help Samsung A700FD Model

hello everyone my friend have samsung a700fd variant its current firmware is 4.4.4 kitkat and he wanted to update to 6.0.1 firmware but doesn't update by saying "Your device have been modified, Software updates are not available". but i when i go to the settings the device status is "Official".
the Phone is second hand.

Please help me how i can solve this problem and reply soon

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by mollie.wolf
2 hours ago
Last post by jwisoky
2 hours ago
Last post by sboehm
12 minutes ago
Last post by kklocko
2 hours ago
Last post by orval.bogisich
2 hours ago
Last post by rogers99
1 hour ago
Last post by lonie.luettgen
13 minutes ago
Last post by johnston.marjory
4 hours ago