Help Need help

[ashraful1122]

i have bought Samsung S6 Edge which is included with T-Mobile.
however my mobile basement information is showing unknown from setting option that's why network and sim is not working can anyone help me pls. Thanks in Advance.

 

[Jfalls63]

Are you saying that Baseband is Unknown in settings?
How about IMEI info, corrupt or Unknown?
You might need to flash the stock firmware. What is the complete model number?

 

[svim]

How long have you had your S6 Edge? Have you had it for a couple of years and this problem just start happening, or is this just a pre-owned phone you recently received through T-Mobile?