[AT&T Samsung Galaxy Note I717] sashusmom:
I don't know if I can help, but I will try. First off, a nandroid back up does not keep a modem. Your modem sticks from flash to flash unless you physically change it. The way to physically change it is to use a zip file and flash. It will replace whatever modem that is currently on the device. The other way is thru Aroma. You either keep what you have or select one of the other choices.

There are some devs who include a modem in their rom. If they do it should be outlined in the summary of the rom. Then this will replace whatever modem you have on your device.

---------- Post added at 03:03 PM ---------- Previous post was at 02:54 PM ----------

When I played with a bunch of roms and modems trying to get the att note to work the best on tmo I found out a couple of things.

JellyBean roms are very picky. Sometimes lte apns and radios will take your calling function away, or data away and you have to make sure you have selected the correct function of lte, wcdma, gsm. If the correct ones are not chosen to match your radio or modem you will not get a signal. Or you can have data but no voice. It's basically seeing what modems work for your carrier, the part of the world you're in, your apn settings, and your... hold on- digging out my note and firing it up...

Ahh....The service mode- dial on keypad *#2263# and it will open up the menu for it. Chose your band preference. It makes a difference in whether your radio will work. Some work better than others. Sometines choosing wcdma will pull in lte anyway so you don't necessarily have to pick lte to get it.

Now, elf, I'm not sure your 7005 is the same as the i717. I will take your word. I do remember that the combo modem was made off this phone and the tmo phone- sort of a radio blend that worked well.

It's just a bunch of trial and error. Get whatever modems you think might work. Don't limit yourself the gingerbread, ics or JB. They can cross over and work on different roms. I would flash a modem, do speed tests - write down the results on a chart, and flash another, and so on till you hit on the right combo of modem, apn, and band preference.

Don't give up if you don't get a signal bar. Keep adjusting your band preferences. If you have the circle with the line thru it, that's a pretty clear sign you got nothing. I would be in the area of a refarmed tower where I would have great signal and service, then have nothing- circle with a line thru it thing. Just cause I was on the edge of att/tmo crossover.

Oh, and elF, I was on Avatar and switched to other roms. I don't think that is a factor in your problem.

Keep us posted on how your are doing. Worst case, nandroid what you got, go back to what was working as far as rom and modem, and when you have time, or another phone to rely on, go back to pad 4 and keep working on a solution. Good luck.

I wish I could be of more help but I don't know anything about your part of the world, carrier, and what works there. Oh- be careful about a combo that your phone hates- you will know by your phone being hot. That's not a good combo. That happened to me with using the first t-mo radio on my att note. My phone got real hot. It took 6 months for someone to come up with blaze. That always worked best for me. It will work even thou you have no signal bars. YOu can check your signal thru about phone- phone status, signal. The lower the number, the better. Closest to 89 is best, over 100 not great. 90-95 OK.