IPhone :: Installing IOS4 - 3G Cannot Read My SIM Card And Was Locked / All Data Gone
Jul 12, 2010
I was updating and installing to iOS4 when my iphone 3G suddenly says it can't read my SIM card and was locked. On my iTunes screen I was told I needed to insert a SIM card in order to continue with the installation of the iOS4. I used my friend's SIM card and my iphone was able to detect it however my itunes would only allow me to the option to restore my iphone which I did and now all my camera roll, notes, contacts and sms are gone and the backups in my iTunes are all post-iPhone-crash.
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Jul 2, 2010
I just purchased a 3GS iphone that is running OS 3.1.3 on it. Not sure if I want to upgrade to 4 yet, but don't think I would want the 'new upgrade/fix' Apple is coming out with that would actually list my bars lower than they show now.So my question is, can I just download iOS 4 without installing it yet in case I decide to install it later? If so how? I am new to iphone's so forgive my ignorance.Also, anyone who is going back to their 3GS are you upgrading to 4 or keeping the old OS on there.
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Oct 19, 2012
I'am using nokia 5233. I had this problem for 3 or 4 times my mobile shows disk error can't complete read or write data. Then I can't open memory card and can't format it in 5233 I formated it in nokia 2700 then it works why is this happening? and what can i do for it?
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Jun 24, 2010
I have AT&T and my data has not been working since I upgraded to iOS 4 yesterday. MMS, Internet, etc doesn't work. I have called AT&T and they don't know why and can't offer any solution. Anyone else having this problem?
I have tried restoring my phone, resetting the network settings, and AT&T tried unregistering and re-registering my phone but still no data.
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Jun 12, 2010
I upgraded my 3G to iOS 4 and jailbroke it the other day. Everything works fine except data — whenever I try using the internet over 3G, nothing happens. Every app I try is unable to connect to the web. Calls and SMS still work fine.Is there a way to either
a) revert to 3.1.2, or
b) get data working on iOS 4?
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Jul 16, 2010
After completing an update to IOS4, the iPhone is now locked. Whenever I try to connect with iTunes, it says that SIM cards is not supported... What I can only see on the screen is the USB cable that shows it should be connected to iTunes.
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Jul 7, 2010
Ever since I upgraded to iOS4.0, my iphone 3GS has been losing its internet connection over 3G.The 3G indicator remains lit on the display, however when trying to surf or use an app that requires internet, it simply times out. In order to get my internet back I need to reboot the phone, or switch airplane mode on, then off.It seems to occur after I leave the house, so it may be that the phone is having trouble automatically switching from Wifi to 3G.Does anyone have any suggestions on how to fix the issue?
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Jul 12, 2015
you installed 5.1 believing the hype that latest means greatest and found out that 5.1 is not better than 4.4.4, simply different. You found out some of your apps don't work, your battery life took a hit for the worse or even your hardware does not perform as well as it did on Kitkat 4.4.4. If you installed the OTA for 5.1 and you are happy, this is not directed at you; just continue to enjoy your new OS. I have taken the time to read from many different sources and viewed several videos on You Tube that test side by side Kitkat 4.4.4 vs LP 5.1 and it shows conclusively that Kitkat out.
If you know for a fact that LP will offer you something specific that you need take the plunge but at least take the time to check what LP will mess up that you are now enjoying on Kitkat, the information is out there easily found, in closing: if you are sitting on the fence and have not yet taken the 5.1 OTA read and view videos so when you make your decision at least you will know what you will be getting and losing.
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Jun 8, 2010
I am not sure this is the right place to ask on GM iOS4, I would like to upgrade Gold Master iOS4 to mine 3GS right now and when it released the official firmware for public on 21st June, would I have any problem to upgrade from GM version?
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Jun 20, 2010
Was just wondering what the best way to upgrade from the iOS4 GM to the official iOS4 release. Would I be better off doing a backup of my iOS4, restoring my iPhone to iPhone OS 3 and then going back to the official iOS4 or do you think we will be able to straight from the GM to the official version of iOS 4. Or is the iOS4 GM identical to the official iOS 4 release?
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Jun 5, 2012
While installing new software on iphone4 the computer backed data now cant find it lost all my contacts.
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Sep 18, 2010
I cannot read messages that are sent to me when my phone is locked. When i unlock it it says at the top of the screen that i have 12 unread messages but when i go into the message folder it shows no new messages!
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Mar 23, 2012
I purchased an iphone 4 with ios 4.3.3 I guess, i used to upgrade the ios each time i connect my iphone to iTunes, the last time i updated my phone to ios 5 and when i restarted i couldn't register my sim card, I updated my phone to ios 5.1
Info:
iPhone 4, iOS 5.1
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May 14, 2012
After installing 5.1.1 I've a sim card problem. It'll lost connection of Sim card after a msg "Sim card sent a massage" anybody can help?
Info:
iPhone 4, iOS 5.1.1
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Mar 11, 2010
Has anyone else experienced this. I have a BBStorm.
I did not know my media files were saved on my SD card. I thought they were saved on my device.
In the options, under Memory, it says Media Card cannot be read. Verify that the memory card has been formatted.
First I took the memory SD mini card 8G out and put it back in.
Still same message.
So then I went to Format and formatted it...as it asked me to do.
Error message came up. Saying Format Failed.
However all my files are gone.
I am so mad that my blackberry told me to ensure it was formatted. Everything is gone off my BB.
Is there a way to recover this data?
I haven't backed up my BB before.
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Jun 21, 2010
Will iTunes know that the official release is newer than the gold master release? I assume its not out yet as iTunes keeps saying "4.0 is the latest release" So what will happen when its out?
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Jul 4, 2012
My new iphone 4s can not read the simcard! What can I do?
Info:
iPhone 4S, iOS 5.1.1
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Jul 5, 2012
when i put sim card into my device it says NO SIM CARD INSTALLED . what should i do?
Info:
iPhone 4, iOS 5.0.1
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Jul 5, 2012
iPhone is not reading the sim card
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May 26, 2012
Can Siri work with only WiFi without installing SIM card in the iPhone 4S?
Info:
iPhone 4S, iOS 5.1.1
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Sep 10, 2014
my phone has been erased and now will not read sim card. how can i activate without sim?
Info:
iPhone 5, iOS 7.1.2, no sim read
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Jun 19, 2012
I bought my iphone 2nd hand off trade me (similar to ebay). I now have a sneaking suspicion that it was bought overseas and now it has locked? It has come up with cannot read sim card, and cannot be activated.
Info:
iPhone 3GS
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Apr 6, 2012
Ok, this is a very basic question. I'm currently an Android user. Does the data connection turn off after some time when iphone is locked/sleep mode or does data connection always stay on?
Info:
iPhone 4S, iOS 5.1
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Jun 3, 2014
The phone was given to me secondhand by a friend. It has no sevice since I cannot use it with my carrier, and I use it kind of like an iPod touch. How can I get the PUK code?
Info:
iPhone 4S, iOS 7
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Jun 2, 2010
Does anyone know what happens if you get an (activated) iPad micro-SIM and put it in a PC data card? Grabbing the $30/month for unlimited data before it goes away would be attractive if it works.
I'm aware I'd have to get a micro-SIM to SIM adaptor, but what else? Change the APN my PC uses? Does AT&T check the IMEI? I've been searching but no one seems to have tried it, unless my search-fu skills are failing me.
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Feb 28, 2010
My phone seems to be locked, with the itunes logo and image of a usb cord with an arrow pointing toward the icon. The only thing it will do is slide open to make an emergency call. There is a little lock symbol at the top. I connected to my mac to upload photos, and it wanted to upgrade softwear, so I clicked ok. Now in my Itunes screen, it says that the sim card is not supported and that i need a compatible sim card. I have been using this phone for a year with no problems. Did Apple find a way to lock any phones that are synced thru Itunes, that are not using AT&T?
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Apr 28, 2012
After I upgrade my iPhone to iOS 4.2 I can not activate iPhone.It is written " The simcard inserted in this iPhone does not appear to be supported.Only compatible simcards from supported carrier may be used to activate iPhone.Please insert the simcard that came with your iPhone or visit a suppported carrier's store to receive a replacement simcard". Before upgrade I can use the simcard.
Info:
iPhone 3G, iOS 3.1.3
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Mar 22, 2012
Updated my phone and now is asking for "insert a valid sim with no PIN lock to activate iPhone
Info:
iPhone 4, iOS 5.1
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Apr 30, 2012
how to reset my account I put the wrong code in a couple times and now I think it's locked any way to unlock?
Info:
iPhone 4
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Oct 13, 2011
Well after installing the new update that came out yesterday my phone's data no longer works.3G dead.4G dead.Only wifi works.I have rebooted twice and still nothing.
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Feb 19, 2016
I installed Pure Nexus and that went great. That is until I left the house and had no data. Did some searching and all the recommendations say install the latest vendor image. So I did and flashed the mmb29q vendor image and I still don't have data.
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