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SM-G906S (S805) -- ACTIVATE LTE on AT&T

31st August 2014, 02:41 PM   |  #21  
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Quote:
Originally Posted by miscom

I am on AT&T and the reason I bought this phone was because, according to the specs in the FCC site, it has LTE Band 17 (which is the most common one for AT&T).

I was only getting 3G (HSPA+) speeds. I followed the following procedure to enable LTE for data and still be able to place/receive phone calls:

Do this at your own risk

  1. Open the dial pad
  2. Type: *#0011# to enter Service Mode (Be very careful with what you do here)
    Note: You need to be rooted for this to work
  3. Once in Service Mode, do the following:
    1. Tap the menu button and tap Back
    2. Tap the menu button again and select "Key Input" and enter an upper case Q and press OK
    3. Tap the menu button again and select "Key Input" and enter 4 zeroes (0000) and press OK
    4. Wait from 5 to 15 seconds. You'll see the Main Menu
  4. Choose option [2]: UE SETTING & INFO
  5. Choose option [1]: SETTING
  6. Choose option [1]: PROTOCOL
  7. Choose option [2]: NAS
  8. Choose option [1]: NETWORK CONTROL
  9. Choose option [4]: BAND SELECTION
  10. Choose option [4]: LTE Band Preference
  11. Choose option [7]: LTE ALL (Or you can choose band 17 instead)
  12. Tap the menu button and choose Back (Don't press the back key)
  13. Tap again the menu button and choose Back
  14. Choose option [6]: LTE/WCDMA Mode Only
  15. Press the back key to exit

And that's it: You now have LTE and calls if using AT&T. This won't work with TMobile.

If you reboot your phone, you may need to repeat the steps.



Are you sure G906S have band 17? I ask 4 person, they dont see the band 17 on G906S.
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31st August 2014, 04:48 PM   |  #22  
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Quote:
Originally Posted by wst9344

Are you sure G906S have band 17? I ask 4 person, they dont see the band 17 on G906S.

Yes, it has band 17. Did you follow the procedure in the OP?

Also, try LTE All from the menu you show in your attachment.
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