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For months, many people have been asking me if there’s a way to run T-Mobile 3G/4G AWS bands on the AT&T Galaxy Note 2 SGH-i317. Well, I’ve always told them the AT&T Note 2 does not have the hardware required for T-Mobile’s HSPA+ bands but I feel really stupid now as it is possible with a bit of hacking. (Actually takes like 5 minutes, very easy to do and no root is required.)
So, yes, it IS possible to enable T-Mobile HSPA+ 42Mbps bands on your AT&T Galaxy Note 2, it’s running just fine on mine.
Step 1. You will need to put your AT&T Galaxy Note 2 SGH-i317 into a special modem mode so dial “*#7284#” on your phone.
Step 2. Choose “Qualcomm USB settings”.
Step 3. Choose “RNDIS + DM + MODEM” then connect a micro USB cable from your AT&T Note 2 to your computer.
Step 4. Make sure you have Samsung USB drivers installed, if you don’t download and install Samsung USB drivers first.
Next, open up Device Manager on your computer and find “Samsung Mobile USB Serial Port” under Ports. Make a note of the COM number, in my case is “27”.
Step 5. Download and install QPST and start the QPST Configuration program.
Next, hit the “Ports” tab and click on “Add New Port”.
Step 6. Uncheck “Show Serial and USB/QC Diagnostic ports only”, choose the COM port with the number you noted earlier then hit “OK”.
Step 7. Choose “Start Clients” and choose “SOFTWARE DOWNLOAD”.
Step 8. Choose the “Backup” tab, hit “Browse” for Port and choose your COM number, hit “Browse” for QCN File and make a new file name for the QCN file you will be making a backup of. We will be backing up the NV Memory on your phone just in case you mess up something. Then hit Start.
Step 9. This will restore NV Memory with T-Mobile 3G/4G bands enabled.
Hit the “Restore” tab, set Port to your COM number.
Next, choose the QCN File as “ATT_I317_AWSMOD_dumimei.qcn”. (Download below)
Then hit “Start” button. If you get a warning just hit “OK”.
Step 10. Once that’s done restoring, your phone will reboot. Just give it about a minute as it will reboot. Once rebooted, you can insert your T-Mobile SIM card and start enjoying T-Mobile 3G/4G HSPA+!
I know for sure there’s some shortage of T-Mobile Galaxy Note 2s out there or at least T-Mobile will not sell them without contracts but AT&T Galaxy Note 2s are much easier to be had off contract. Now, you have another Note 2 option to run your T-Mobile SIM card.
Note that this mod works flawless, I didn’t notice any speed differences between my T-Mobile Note 2 and my AT&T Note 2 running with this mod. Enjoy!
Credits – XDA <— All credits goto XDA user sjravi, if this has helped you, don’t forget to donate to him, thx!
Q: Not working on my Android 4.1.2!
A: You can try re-flashing an Android 4.1.1 TouchWiz ROM or Download and install phoneutil.apk and you should be able to see Qualcomm settings even on 4.1.2.