Sep 17, 2009
Well! its hard to believe that after one full month of lying in its coffin the dead has come back to life. It was nothing short of miracle when I inserted my old SIM back into iPhone ! I tried searching the internet and guess what came back to my previous post and guess what the fourth point::
4. Using your SIM in a strange way: Yup, its strange but this is what people have posted on the blogs/forums. Take out your SIM and put it in some old Nokia or any other mobile phone till it catches the signal i.e the signal bars appear then remove the SIM and put it in your iPhone.
No success for me!!
err.. just change the last line its now success for me . I searched on internet how does this happened and why does this happened, though I could not find anything concrete I am just posting my analysis of what I think happened and How my iPhone started working .
After 1 full month I took out the SIM from my old NOKIA mobile phone and inserted it into the dead iPhone , it showed signal then it turned down to zero signal to no signal then to no SIM Installed . When I inserted my sim again it did not show any signal but the old message No SIM Installed. Then later in the day I again put my SIM back into the iPhone and once again it shows signal but they dip down to zero and then to NO SIM INSTALLED.
Few months ago I was living in a metropolitan and I never experienced any problems ( Apart from the dropping of calls in between) then I came to this place somewhere 400 km from that metropolitan where the signal strength was quite weak(Only for the iPhone not for NOKIA). My iPhone was working fine here for 1 month (apart from dropping of calls )but it finally gave up.
My Conclusion: iPhone requires more signal strength to operate than other mobile phones thus if you are at a place with low signal strength chances are that you phone might end up as mine.
But this does not justifies everything why does then transferring of SIM from Nokia cellphone to iPhone make it work.
SIM stores some electric charge as it can store your contacts and some memory is inbuild . When SIM is inside NOKIA it gets charged sufficiently and when I insert into the iPhone the same charge seems to be less for the iPhone thats why it slowly drips down to zero and no SIM.
The above also explains why replacing your old SIM with a new one works for a lot of people. A new SIM has its structure intact and holds charge which iPhone detects easily and thus it starts working.
If your iPhone is still not working try sending few sms’s from you old NOKIA using that same SIM and then put it back into iPhone . I think the problem is the iPhone’s SIM jacket which makes marks on SIM and SIM eventually gives up holding the charge.
[ratings]
thanks for the post, i had the same problem.
Amazing
I agree…..I have had an iPhone for two years with no trouble. We purchased a house to fix up in an area I do drive by BUT do not stay. When I am at the fix up house for a period of several hours my phone said no sim card. I drive away and reboot the phone (not a cold reboot) and it is fine! It has happened ALMOST every time I am at that house for a few hours!
Strange thing. My SIM card failure occurred when I was in a place where the signal bar level was extremely low and cutting in and out. It almost seems like the fact that the phone was struggling so hard to get a signal fried the SIM card.
I don’t have an old SIM to put in my iPhone, so I guess I’ll have to go to my carrier to see if a new SIM card will work.
@Lanny: you may like to read this post ..
http://wackao.com/no-sim-card-installed-iphone/
it might help you out.
i had the same problem, instead of putting it into a new phone i wiped my finger across the sim card and blew into the sim card slot. idk which did it but it worked (Y)