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I think you need to re-read what you read.

The home location of your phone on a GSM network either allows or denies you access to the network. If you phone's IMEI is not in a home location, you will NEVER BE ABLE TO CONNECT, regardless which GSM network you try to connect to.

What that does is tell the GSM phone providers who query for your IMEI number at your home location, whether a) you are a trusted device and b) whether we'll get paid to let you on their network or not!

The point of adding and removing is more of a refresh of authorization. The towers tend to cache certain authorizations and not accept new ones. Removing the authorization and readding it tends to clear it (don't blame AT&T, it's their damn vendor software doing this).

Sure I blame AT&T. When two parties enter into a contract they ONLY have legal obligation to each other in the contract. If I give the phone to my friend and my friend breaks my phone, I can't get out of my contract with AT&T because someone was acting on my behalf.... just like if AT&T has a contract with a vendor and they don't perform, my legal right is to go after AT&T as they're party to the contract with me, not the third party. Why do people have the mentality you have? I pay AT&T for a service, that as a professional organization they should be able to provide? What level is "reasonable" for dropped calls where they say I should have none? 10%? 20%? Maybe... The tech said my phone showed I dropped 61% of calls attempting to be placed.

To me, that's unacceptable.
 
Spirit

I have also used the spirit jailbreak, 2 days now and I now am experiencing random drops in service which I have never before, so am about to do a restore.

Im on Vodafone and in the uk, and 4 other people in this office have the same but not jailbroken and I have had them all in a line, and mine is the only one that drops.
 
Same problems for me on O2; never had any issues in the past using other jailbreak methods, but on Spirit my 3gs has been awful.
 
Same issues oveer here either on 3GS and iPad. But at the iPad it isn't close as annoying as on the 3GS. The iPad gained reception back after a couple of seconds while it takes the iPhone almost a minute to get a 3G signal...
Hooe for today's iOS and jb updates to fix those problems :)
 
Also having the same issue with a freshly restored and jailbroken 3GS on 3.1.3.

Restored to fresh 3.1.3 b/c of slight issue with phone springboard lagging upon waking. Restoring to a fresh 3.1.3 ispw cured the lag issue. Synced all information via itunes with no issues then jailbroke via Spirit.

Instant loss of service. Phone goes to Searching... then to No Service. Comes back up, service drops to 1 bar, then Searching... then rebounds a few minutes later. Minute or two later, drops completely to No Service until I reboot phone.

Restored to a fresh 3.1.3 once again, no problems whatsoever. Synced music/info, used the phone for a couple of hours with no issues (inside office building at work all day). Jailbroke, instant reception issues again.

Phone was jailbroken with Spirit previously with no reception issues whatsoever for 2 months. Currently on my 3rd (or 4th cant remember now honestly) sync of music/info and reception holding strong at 4bars constant, no dropping. Wouldn't mind not jailbreaking again today except for wanting to restore my sms/callhistory.db files.
 
First Post & Same Issue

I also used Spirit to jailbreak my iphone 3G...has worked fine for about 2 days.
This morning I turn it on (knowing the battery was low) and see that the battery is at 17% and I have no service. I shut it down, go to work, plug it. As soon as it boots up 34% battery, still no service. I mess with some settings - nothing.
Then I just turned it off and back on and as soon as it booted this time...i had service (and a 27% battery....???)
Not sure if battery life issues are a part of this but this all happened about 20min. ago. I will update if I have any new problems...this thread has been helpful though.
Thanks!
 
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