iPhone 2G - iOS 3.1.3 (7E18)
iTunes 11.02
Windows 7 Home Basic
f0recast shows: Baseband = 04.05.04_G and Bootloader = 3.9_M3S2
...upgraded to whited00r 6 about 5 days back. It was working fine...
...the fresh restore worked but itunes now gives me a message that "The SIM card inserted in this iPhone does not appear to be supported" and on the iphone i am on the screen which shows connect to itunes cable and the carrier shows fine (Vodafone). I receive calls and can make emergency calls only. Nothing else is visible. I am unable to even enter beyond the emergency screen.
Shows me the IMEI and ICCID on the emergency screen.
Tried Redsn0w (0.9.4 then, 0.9.2 - neither versions recognizes either the iOS 3.1.3 7E18 (old), 7E18 (fresh), 7D11 or any whited00r ipsw's)...
Welcome to the Whited00r forum!

Thank you for providing all the essential info, it makes trying to help you much easier as described in
WD 6: Tips to Quickly Solve your Problems/Bugs & Get Answers FAST!"...upgraded to whited00r 6 about 5 days back. It was working fine - You should have stopped right there.

So you successfully restored your iPhone 2G to the stock iOS 3.1.3 using iTunes but it is still carrier locked and that's why you are getting the iTunes error "The SIM card inserted in this iPhone does not appear to be supported".
*****
Try these steps & please report how it went. This tutorial is valid for the iPhone 3G too.
1- Make sure you download the
Whited00r 6 Unlocked version for the iPhone 2G. Unzip it to get the .ipsw firmware inside. Users with a Factory Unlocked iPhone should download the
Normal version.
For the next Whited00r 7 version (no launch date yet so please
don't ask), we will name it
Unlocker because that is what it does: jailbreak & carrier unlock automatically.
2- While many users are flashing firmwares with the SIM card inserted, it is not needed and
can only create problems so I always: Turn off the iPhone & remove the SIM. There is no need to reinsert the empty SIM tray nor to turn it back on at this point.
3- To rule out any errors caused by the computer: disconnect all USB devices except mouse & keyboard, update iTunes & reboot as this resets the USB ports & completes the iTunes installation.
4- I don't know why Apple does that but in iTunes 11 the Sidebar and the Status Bar are off by default. Enabled them: View > Show Sidebar and View > Show Status Bar.
5- Put the iPhone 2G or 3G in the normal DFU Mode & install all the required drivers on the computer (this also fixes the device not recognized by iTunes error) by doing this: start iTunes > with the iPhone
turned off keep on pressing the Home button and connect it to the computer. Drivers should get installed and iTunes should recognize the device in Restore Mode.
6- If iTunes does not recognize the iPhone: use an other USB port or change to a known working USB data cable or try on an other computer or make sure the data port of the iPhone is not dirty with pocket lint preventing a proper cable seating & contact: clean it using a flashlight, magnifying glass & needle or sharpened toothpick but be careful to not bend or break the contacts.
One one of my iPhone 3G the Data port needed to be replaced because it was corroded and causing a circus of all kinds of iTunes errors. I had to replace also the data cable twice so far because only cheap Chinese clone cables are available where I live & they do not last long & were causing iTunes errors.

7- This is not your case because you have a fresh install but for other users:
[Tutorial] Backup Apps & Data BEFORE Upgrading iOS Firmware WD 6 3.1.3 4.1 4.2.17a- This is optional but can prevent many iTunes installation errors: download the free
iREB and with iTunes turned off, use it to get the iPhone in the PWNED DFU mode and after that close it & use iTunes to follow the steps below.
Note: some users had problems with the current iREB
r7 so you can download the stable
iREB r6 here which works fine.


7b- In iTunes, select your device in the Sidebar and click on Restore holding SHIFT (Windows) (or ALT on Mac) at the same time and navigate your computer to where you unzipped the whited00r Software Update (.ipsw).
7c- After iTunes finished installing the firmware a brief popup appears saying "Your iPhone has been restored to factory settings, and is restarting..." at this point there is
no active USB connection and contrary to what iTunes says, it is safe to disconnect the iPhone.

7d-
This is important: for the Whited00r installation to complete & settle, reboot the device twice: turn off the iPhone, wait 5-10 seconds & turn it back on. After it finished booting, do it again!
7e- Turn off the iPhone a third time, insert the SIM and turn it back on. If on the Statusbar it is stuck in the
Searching... mode and cannot find your cellular provider, go to Settings & turn on the Airplane Mode for 5 seconds & turn back off & it should find the cellular provider if you have a
valid SIM. If it does not, turn off the iPhone, remove the valid SIM & clean the golden contacts thoroughly with alcohol, let it dry & try again.
7f- Connect the iPhone to iTunes and set it up as
New. After that you can disconnect the iPhone. From that point on, personally I never use iTunes anymore but the free, ad free & powerful yet easy to use
iTools (click on English) iPhone/iPod/iPad manager instead.


8- Visit the the sticky
(it means a thread pinned at the top of the forum list) Whited00r 6 - FAQ & Troubleshooting - READ BEFORE POSTING! which may answer many questings you might have about Whited00r 6 including how to get better battery life & enable or disable some Whited00r features.
iPhone 3G notes:A- If your iPhone 3G still have the No service... or Searching error after doing the step 7e, check in > Settings > General > About > Modem Firmware (baseband) & if it says 05.15 or 05.15 then you need to upgrade & downgrade your baseband using this tutorial:
[Solved] iPhone 3G iOS 4.2.1 Stuck in Baseband 05.15.04 - No ServiceB- if you have a SIM with 3G data enabled, you can call your cellular provider to check if it is activated and ask them what is the correct APN data that you need to add to: > Settings > Network (or Cellular) > Cellular Data Network > Cellular Data > APN box.
