SERVICE MODE (and Band Selection) for SM-G920F, how to???

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DrearierJester1

Senior Member
Oct 18, 2011
1,124
286
Melbourne
Samsung Galaxy S21 Ultra
I can access band selection but it does not really let you select the LTE/WCDMA band maybe becoz I havd dual sim enabled.

uploadfromtaptalk1432430690518.png

Sent from my SM-G920F using Tapatalk
 

wst9344

Member
Apr 13, 2012
30
3
Hello, I'm working to fix and restore Service Mode and Band Selection.

I need somebody with SM-G920F and FULL WORKING SERVICE MODE (I mean not only *#0011#, but also BAND SELECTION).

That person, must root his own phone, and send me these files:
- /system/csc/customer.xml
- /system/csc/others.xml
- /system/build.prop

You can send me an email at [email protected].

Let me know ASAP, Thank you all !!!


Can u help me fix that?
 
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WiFire

Member
Jul 27, 2015
10
2
Moscow
Could you please take a screenshot of that menu? I mean the menu which is called by 2263 code.
I'm thinking of buying this phone and band selection is a must feature for me.
 

cchant

Senior Member
May 11, 2010
1,037
161
Note you must be rooted to use Phone Info+

Sent from my SM-G920F using XDA Free mobile app
 

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WiFire

Member
Jul 27, 2015
10
2
Moscow
I think is better to check first if this works on your firmware. As written before I have S6 Edge, 5.1.1, G925FXXU2QOI7. Below is a movie with my menu:
https://www.dropbox.com/s/qcepn1lgohc47g8/2015_10_23_09_36_15.mp4?dl=0

You cannot choose the combinations you want at points 1 and 2. You can choose only one band at a time.
Thank you for the video!
That's bad news. But in your video I've noticed an item called "Band Disable". What is it for? Maybe you can disable several unwanted bands at one time in there?;)
 

cchant

Senior Member
May 11, 2010
1,037
161
Thank you for the video!
That's bad news. But in your video I've noticed an item called "Band Disable". What is it for? Maybe you can disable several unwanted bands at one time in there?;)

I don't know if you can disable several bands but I disabled band 2 and preferred band 17 because for some reason my 920f kept preferring band 2 even though band 17 is more prevalent on AT&T where I live

I went from over 100dBm to around 80dBm on average
 
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SethNY

Member
Mar 18, 2007
34
13
For LTE I can disable bands 3 and 7, I cannot disable band 20. My operator uses bands 3,7,20
For WCDMA I disabled all bands, however, the UE was still connected to band 2100 so maybe it doesn't work 100% ok :)
For GSM there is no Band disable option.

---------- Post added at 06:57 PM ---------- Previous post was at 06:40 PM ----------

https://www.dropbox.com/s/i58cljboxipl92c/2015_10_23_18_44_20.mp4?dl=0 check here all the Band Selection options
 
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anglngr9

New member
Sep 12, 2015
3
0
rooted

if you are rooted you can type the following

adb shell
su
am broadcast -a android.provider.Telephony.SECRET_CODE -d android_secret_code://IOTHIDDENMENU
then choose testmenu mode

this works only on the latest su app if you get error type 2 updating binary
 

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  • 4
    1. root your device
    2. use "Shortcut Master(Lite)" (free) or "Phone Info+" app to launch the code 2263; band selection works in this way with my S6 Edge G925FXXU2QOI7 Android 5.1.1 .
    1
    I have an International SM-G920F but I can't open SERVICE MODE like I did with S4, Note 4, S5...
    (dial *#0011*, menu->back, menu->insert key, type Q0000 and press enter)

    And other codes found online don't work.

    Does anyone know how to open SERVICE MODE ?
    I need it for BAND SELECTION and other stuff...

    Thank you for Help
    1
    Band selection is *#2263#

    But I can't get out to any of the other settings :(
    1
    Hello, I'm working to fix and restore Service Mode and Band Selection.

    I need somebody with SM-G920F and FULL WORKING SERVICE MODE (I mean not only *#0011#, but also BAND SELECTION).

    That person, must root his own phone, and send me these files:
    - /system/csc/customer.xml
    - /system/csc/others.xml
    - /system/build.prop

    You can send me an email at [email protected].

    Let me know ASAP, Thank you all !!!


    Can u help me fix that?
    1
    Really? Can anyone confirm it?

    Yes. I use phone info