How can I get my Lumia 820 to detect my sim card?

[srinivas pilli]

lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

sir in my lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card when i insert sim card it shows "no service" my messages all are gone i cant see my messges i really feel about my messges because they are very imp. and im from india what shoud i do now please help me get me out of this problem
sim card noy dtected
messages not found
in lumia
820
message and back up doesn't work in windows 10 for phone

 

[Rakesh Rocky2]

Re: lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

Try hard reset again

 

[JITKR]

Re: lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

Try contact+sms backup to memory card app from MS. And backup your messages . Then do a hard reset from about->reset device.

 

[srinivas pilli]

Re: lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

brother hard reset will erase everything

 

[srinivas pilli]

Re: lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

in windows 10 for phone contacts+message back up app doesn't work what should I do now please help me anybody please

 

[a5cent]

Re: lumia 820 i got windows 10 fast build , my problem is my 820 doesnt detecting sim card

Yes, a hard reset will erase everything. If you install alpha software onto any device, you're fully expected to have no problem with such a procedure. If you're opposed to that in any way you should never have installed W10M. Finally, if you installed alpha software BEFORE backing up your phone/messages etc, then you shouldn't be surprised to lose everything. Backups should be used BEFORE doing risky things. Afterwards they are of no use.
I know this isn't helping you, but it needs to be said.
We have dozens of threads discussing this issue. All of them make the same recommendation. See this:

http://forums.windowscentral.com/wi...hnical-preview-device-failing-detect-sim.html

Closed.