kc referenced my post. Here is a handy link: http://tiny.cc/wik4h

If you decide to comment asking for help, make sure you’ve read the notes there on how to ask for help. Specifically, I’m mentioning this so you’ll know to post your technical details. I will neither confirm nor deny allegations of magic powers, but one way or another, nobody can fix your problem if you just say, “It isn’t working!” You have to say something more like, “It isn’t working! iPhone 3.1.2, JB with blackra1in, no unlock, baseband 05.11.07.”

Insert the standard refrain about not asking stupid questions. For good measure, let’s add a “Don’t do drugs,” too. Drugs are bad. Except ones I decide are good.

Proudly proclaiming unshakable standards (and they wouldn’t be standards if there weren’t two of them),

-Chris T

Nothing I’ve tried has had a significant impact on my signal. Good luck to you if you read this.

Prescribing low-dosage sociopathy for guilt-free tardiness,

-Chris T

You’re a darling. I’d almost forgotten about this thread, but the tubes flow warm once again.

Great post. If you’d like to satisfy my curiosity, how did the restore go? I had to fix an issue a little like yours recently, and the app settings got dragged into an alley and shot at some point along the line. I also wonder if you had any jailbroken apps other than BlackSn0w; recovery systems like third-party apps even less than the regular ones. I am forced to assume that they’re still in the process of being tortured to death, since they never showed up on the aforementioned iPhone.

I use a little utility called AptBackup from Cydia to ease the reinstall process (conventional file backups ought to be sufficient for the application’s settings and such), and while recovery drills have brought the machines back up and on fine, this is the main reason I haven’t upgraded to OS4 yet. I’ve got a rather large handful of applications I’d have to worry about reinstalling and reconfiguring, and until the number of apps that refuse to work on iOS 3 is greater than the number of apps I’d have to reconfigure, I’m not sure it’d be worth the hassle.

My little query isn’t directly related to the thread, but I think we exhausted the supply of relevant information a long time ago.

Showing approval and pleasure (but not too much pleasure) at your post,

-Chris T

I’ve been jailbroken (from BlackRa1n RC3) and unlocked (BlackSnow included in BlackRa1n) using 3.1.2 on an iPhone 3G for over a year now.

No, it doesn’t cost anything as long as you keep the data usage reasonable. I only tether for email and some minor web surfing when traveling or when the WiFi network at work dies for a day.

I fired up tethering about a week ago and my iPhone died. Dead, dead. I had to restore from iTunes (to 3.1.2, nothing newer) and then again jailbreak and unlock with BlackRa1n. I reinstalled the carrier settings file from benm.at and no tethering. It wasn’t even in the Settings/General/Network screen.

I read Chris T’s posting (or rant rather) from June 9, 2010 1:13pm above. He’s a little rough on us n00bs, but all of the information is there. Go read it. Seriously.

It turns out I had settings files piling up. Under Settings/ General/ Profile I had 3 profiles. I deleted all 3 and rebooted. If you don’t have a profile menu under general (it should be toward the bottom, mine is above ‘reset’), then you don’t have any profiles and you are good.

I retried the file from benm.at and rebooted: no luck. Delete it and reboot.
I tried the one from m.peacefulinsanity.com. Reboot. No luck. Delete it and reboot.
I couldn’t get gumballtech to even install.
I tried the one from iphone-notes.de and reboot. It works!

I don’t know what is wrong with the other carrier settings file for my configuration, but I’m tethered now, back to where I was before my crash and I’m happy.

Here’s the summary:
Read Chris T’s post.
iPhone 3G using 3.1.2
Unlock and Jailbreak using BlackRa1n RC3
Delete all carrier settings files. Reboot.
Try the carrier settings files in Chris T’s post. Don’t have more than one. Reboot after any installations or deletions of carrier settings files.

Happy tethering…