Can't change preferred network on *#*#4636#*#* - Galaxy S II Q&A, Help & Troubleshooting

Hi. I am on stock 4.0.3 ROM.
When I want to change in occult menu *#*#4636#*#* the preferred network (by default I have GSM/CDMA auto (PRL), and here in Spain not are CDMA networks), when I put another option, like WCDMA preferred. Don't do nothing, when I back again to this menu, I see again is on GSM/CDMA auto (PRL)
So, why don't change? Are there any other way to change it?
Thanks

Related

[SOLVED] Stuck on 4g or 1x all the time?

Do all this steps.
1. I dial ##778#
2.tap edit mode
3.password. is 000000
4.tap on modem settings
5.tap Rev.A
6.Tap on enable
7.Tap on the menu on your phone
8.Tap on Commit modifications
And after you do that your phone should reboot and you should have 3g
THEN AFTER THE REBOOT
Dial *#*#4636#*#*
Okay now scroll to the bottom. the box should say "LTE MODE" I have no 4G service in my area. So I only got. 1x. I changed my radio settings to auto PRL. Its 3G only saves battery. And for. 3G and LTE
Is (CDMA+LTE/EvDo) then after just press the home button then. 1x will disappear then 3G will appear there you go. Ladies and gentlemen
Your favorite android
-Monky_1

[Q] CM7 4G?

I have tried going into the testing menu and switching radios, but:
1. I don't know which radio to choose, because there's no CDMA+LTE/EvDO option
2. When I do choose another option (other than CDMA PRL(Auto)), it doesn't switch to it.
So, the question is: How do I switch between 3G and 4G LTE on my Thunderbolt with CM7?
thoughtbot said:
I have tried going into the testing menu and switching radios, but:
1. I don't know which radio to choose, because there's no CDMA+LTE/EvDO option
2. When I do choose another option (other than CDMA PRL(Auto)), it doesn't switch to it.
So, the question is: How do I switch between 3G and 4G LTE on my Thunderbolt with CM7?
Click to expand...
Click to collapse
Settings->Wireless&Networks->Mobile networks->network mode
Or you can just add slayher's 3g/4g toggle to the power widget or the notification widget in the drop down.
Thanks a bunch! Perfect

LTE band selection

Is there any way for an Xperia to show which LTE band it is currently connected to or even force select which LTE band to connect to?
Some phones from other manufacturers seem to have it under hidden menu but not the case for Sony
it should be in
*#*#INFO#*#*
OR
*#*#SERVICE#*#*
type this into your dialer
i forget which menu because i cant check becuase im not on a stock/stock based rom

Band Selection

Anyone knows how to access service mode in one plus x oxygen os 3.1.3? I want to change my lte bands.
You mean the menu when typing *#*#4636#*#*
Kéno40 said:
You mean the menu when typing *#*#4636#*#*
Click to expand...
Click to collapse
Nope thats network mode. I want to change let bands.
Good luck....

can get LTE on your Z Ultra C6802 by this steps?!!

hi
is it true can get LTE on Z Ultra C6802 by this steps
1- dial *#*#4636#*#*
2- tap Phone Information
3- scroll down to Set preferred network type
4- choose LTE/GSM auto (PRL), and reboot.
is it work?

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