[Samsung Infuse 4G] FaintPuppet:
Okay, I'm basically going to just copy and paste my issue and edits here from the Zeus thread I couldn't get any help on. The edits are so anyone who actually read this can see what I did and have been doing so they don't suggest something I already did.

So the other day, I tried to flash to the Doctorz ROM and of course, made a Nandroid backup. After messing with Doctorz, I went back to Nandroid or clockwork recovery (whatever it is) and after restoring, I was on another modem and stock kernel. I tried to reflash Zeus and wiped partitions cache and dalvik cache and now I'm having serious issues. I have my SIM card in my phone, but it keeps telling me I don't even though it's there. Even weirder, I have one or two bars even after I pull out the SIM card. Earlier, it was detecting that I had a SIM card, but said "Invalid SIM card" or something and now whether it's there or not, my phone says it has one or two bars even though I can't do anything. What's going on??

I've tried rebooting several times and activated Wifi and airplane mode, but had no luck. SIM card's in right now, but my phone says no service.

EDIT: Forget it. I just did a factory restore and wiped everything and reflashed Zeus.

EDIT 2: Okay now I'm having other issues. My phone recognizes my SIM card again and now I'm getting my normal signal, but I can't do anything wirelessly, like send a text or use up data. It SAYS I have signal and am connected to the HSPA+ network and the arrows are flashing and whatnot, but I can't do anything wireless. I can't go into the market, send a text or use the internet browser. Someone please help?

EDIT 3: Okay, I was wrong on that last part. My texts weren't going through because of bad signal, but I definitely have no data AT ALL. All I have are a few bars, but nothing about 3g/EDGE/HSPA+. I think this is an issue with APN settings?

EDIT 4: Messed with some APN settings... kinda back to square one, where the H+ shows up and I get Edge sometimes (I have bad signal where I'm at) and the arrows are flashing, but NOTHING. I still can't use the market or any data at all.

EDIT 5: I just decided I'd try to be next to my router and turned on Wifi... my phone would not pick up a signal from my router at all, and it works just fine. I'm starting to think this is a modem-related issue...

EDIT 6: Okay, I kinda fixed the problem, but my data speeds are SUPER SLOW and sending one message takes a really long time. I know I have bad signal, but it's never been this slow, even when I manage to pull up two or three bars. I tried messing with build.prop, but as I'm on Zeus, the settings were already fixed up.

EDIT 7: Okay, the Wifi issue was because I used the wrong WEP key. Oops. After I managed to connect though, I couldn't get any data. My phone just doesn't want to use up any data apparently? I reflashed the modem Zeus normally uses and now if I manage to get some data, it's unbelievably slow and can't use Wifi data.

EDIT 8: I forgot to mention that if I don't get to connect somewhere with data, my phone will just tell me there's no data connection or whatever even though I have two bars. I tried to fix permissions and rebooted, but no luck.

Someone please help. This is really annoying.