Here’s how to enable T-Mobile 3G/4G HSPA+ on your AT&T Galaxy Note SGH-i717. With this you will be able to fully use your AT&T Galaxy Note SGH-i717 on T-Mobile’s HSPA+ 3G/4G network and get voice with 3G/4G data.
In other words, T-Mobile users can now buy the AT&T Galaxy Note at full retail price, pop their SIM cards, and start using Galaxy Note fully.
Here’s a video demo of my T-Mobile SIM card with voice/data/3G/4G/HSPA+ working flawless on my AT&T Galaxy Note SGH-i717:
Before you begin, you will need:
Once you have done the above steps, you can simply flash T-mobile modems using ClockworkMod Recovery to get 3G/4G HSPA+ on your AT&T Galaxy Note SGH-i717.
Step 1. Connect your AT&T Galaxy Note SGH-i717 to your computer via a micro-USB cable.
Step 2. Download T-mobile modem and copy to SD card or internal storage of your phone.
T-mo VKL1 – This one worked for me, try this first.
Step 3. Reboot into ClockworkMod Recovery by holding down Volume Up, Volume Down, and Power button together.
Step 4. Let go of the Power button when your phone reset (you will feel a little vibration) and keep holding down Volume Up and Volume Down buttons.
Step 5. Once in CWM Recovery, choose “install zip from sdcard”.
Step 6. Choose “choose zip from sdcard” or “choose zip from internal sdcard” depending on where you put the modem files to.
Step 7. Go find the modem file you copied over earlier.
Step 8. Choose “Yes”.
Step 9. When it’s done, choose “Go Back” and “Reboot system”.
Step 10. You should now be able to get full 3G/4G HSPA+ on T-Mobile’s network along with voice working.
Tip: You can “force” your phone to use T-Mobile’s 4G network (if you get bad T-Mobile signals like me) by switching to HSPA Only mode in Settings->Wireless and network->Mobile networks->Network mode.
The GSM/HSPA (auto mode) only goes to 4G when you have a certain number of 4G bars while forcing HSPA Only mode gets you 4G even if you have 0.5 bars.
Also, if you want to revert back, here’s AT&T and Rogers stock modems: (Flash the same way as you did with Tmobile modems)
Yippee, now T-mobile users can use Galaxy Note fully by buying a the AT&T Galaxy Note at full retail (which is what I did). You can buy it on Amazon here.
Q: Where do you find those HSPA+ only settings?
A: You need to be on a Rogers based ROM for that work, you can try installing Saurom ROM.
Q: I am stuck with EDGE on T-mobile on ICS!
A: The modems listed here are only for Gingerbread (as ICS was not out when this tutorial was written) BUT you can install these ICS modems for ICS to get it out of your Edge.
There’s also a hack you can switch bands by dialing *#2263# but you don’t have to do this, just leave it on Auto so you can use both T-Mobile and AT&T SIM cards with one modem. No, you don’t have to flash the AT&T modem back to use AT&T.
Credits – XDANeed Help? Follow/add me on Google+, Facebook, or Twitter!
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