[AT&T Samsung Galaxy S 4 General] zaryan:
This guide will help you enable AWS on AT&T Samsung Galaxy S4 i337 or Canadian Samsung Galaxy S4 i337M

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All Files Have been Included In The Attachment ( See Below )

Instructions

1. Run & Install QPST Setup build 323 on your windows computer [File attached below]

2. [ With Latest Android Updates on S4, you don't need this step(2) which requires an application to be installed which is attached below named as phoneutil.apk,

skip this step

, How to know if you don't need, when Dial *#0808# on your dial pad if it shows a prompt poped up you don't need this step ]

Copy phoneutil.apk (attached to this post) to your phone & Install it on your phone -> go to myfiles (on your phone), browse and install it.

3. Disconnect your phone from computer & dial:

For stock android versions:

Dial *#7284# on your phone dialer and hit “Qualcomm USB settings” button

For Updated Android Versions

*#0808# for new updated android S4

4. Check “RNDIS + DM + MODEM” then connect to computer again. (Some people got it working with "DM + MODEM + ADB")

5.Your windows will install driver ( Samsung Kies if is installed, it will install drivers for your device )

6. Next, open up Device Manager on your computer and find “Samsung Mobile USB Serial Port” under Ports.

Make a note of the COM number (usually the second one)

7. Start QPST Confirguration application

8. Press Add New port, Uncheck “Show Serial and USB/QC Diagnostic ports only”, choose the COM port with the number you noted earlier then hit “OK”.

10. Choose “Start Clients” and choose “SOFTWARE DOWNLOAD”.

11. 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.

12. Hit the “Restore” tab, set Port to your COM number. Next, choose the QCN File as “337_AWS.qcn”. (I have attached below)

Then hit “Start” button. If you get a warning just hit “OK”.

13. 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/Wind/Mobilicity SIM card and start enjoying

Tested 100% Works with all AWS network flawlessly.

FAQ

Will this void my warranty?

No.

What to do if i get this error ? "The model number in the QCN file and the phone do not match. Do you still want to restore the phone with this file?"

It is safe to continue

Will it work with other networks Rogers, Bell, Fido ?

Yes.

Phone has to be sim unlocked for this patch to work?

Yes, phone must be sim unlocked

Will it work with Custom ROMs?

Many custom ROMs work, some ROMs don't work because USB Qualcomm Setting doesnt pop up.

Is it permanent?

When you hard reset your phone(Some custom roms require hard resetting), this needs to be patched again following this guide from beginning other than that, it stays patched even if you restart it.

You are responsible on following the instructions carefully, instructions are provided assuming user has adequate knowledge to carry out basic operations. For those who know, this is done exactly the same way the NOTE 2 was done.

Special Thanks: to FastGsm.com for the phoneutil.apk

I would also like to thank the XDA Team and all those members who'd come up with this idea on the note 2 & before, indeed it wouldn't have been possible without them, originally by sjravi and other respected members

Now Buy me a coffee ;) Donate

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=R49VLCBR45322

Attachment:

QPST Software: Download

All Other Files: Download

Temporary AWS Patch Guide for Samsung S3 i747 Coming Soon Using Smart Apps Makes It Convenient to patch again on ever restart

chen sheng - thanks for donation

Saad Al Haddawi - thanks for donation

Pierluigi Zamparella - thanks!

and many others thank you for your donations.