Hi Dear Iphone Friends ,

I would like to share an experience i really do hope that the dev team reads this , maybe there is a solution that they will get after this article>

Well like almost all of you i bought an iphone 3g 16 gb black and as most
iphones it was network locked , but as yellowsn0w was around it really was not a problem getting the network back with my sim.

When 2.2.1 came out i accidently upgraded to it and i was with out my phone for 5 months until the great DEV TEAM came out with ultrasn0w , so i was very happy BUT while trying to JAILBREAK the device, it would always get stuck on the 3rd reboot , im sure a lot of you peeps out there could still be having that problem.I was kind of deppresed after trying over and over at least 50 times as i was going to give up i said well why dont i give it a try on a windows XP machine ( i was currently using my VISTA ULTIMATE 64x) and voila the whole thing worked like a charm .

So after the reboot etc i was kind of waiting to see some pretty signal bars come up and believe it or not they did come up , BUT i actually have to sim cards with my operator an old sim that dates 3 years back and a new version that dates to at least 1 year back which i was initially using on my iphone when i first got it .

So when i unlocked the phone with the ultrasnow i was actully using my old sim and so when i rebooted the iphone network signal was present, so i thought cool my new sim should work as well , so i replaced the sim as well as reboot the phone and big dissapointement NO SIGNAL, i tried everything so that i could refresh the network but nada nothing even tried restore and going through the red and ultra process but nothing .So now i was confused was it the phone or the sim ????????

Anyway i tried the old sim again and guess what the card would register and signal was present !!!!!!!

So i called some1 that i know that works for the operator that i was using and he said that the problem that i was having was simply because the new sim was is a 5 volt sim whereas the old sim is a 3volt sim......

Now i ask my self how is it that my new sim worked on the iphone when i first got it and not now!!!!!!

Could it be a problem with the firmware ???? i dont think so!!!!
May be its Yellowsn0w.!!!!!!
I actually dont know if someone from the dev team will read this but i hope that they do maybe they can have an idea on where the problem lies .
If any 1 knows them please ask them to have a read
Anyways i would like to thank the dev team personally for their work they are truly the gods of iphone

Now that you are using Windows XP software .....note: MAC OS is the BEST.
...
Vista ...pardon the language ( SUCKS)

why don't you try the NEW SIM card and use the Newest software here and upgrade to 3.0 Version

yeah well man thanks for the tips bro but which latest sw are you referring too

This is a 2G forum. Is your iPhone a 2G one?

Originally Posted by duck9000

This is a 2G forum. Is your iPhone a 2G one?

Duck9000 is so right if you have a 3G iPhone you need 3G firmware.

Please find the 3G forums to access a 3G firmware. thanks

here is iClarified firmware list / new and old...please be certain of the firmware for your iPhone.

if you have questions...PLEASE ask first before you select your firmware....

iClarified - iPhone - Where To Download iPhone Firmware Files From

we are here to help

Yeah sorry bout that it is a 3g 1 , how do i move the post to 3g?