Database Develop

Problem with my operator's frequencies

hi guys,
i'm from italy and i've a contract with the H3G operator. Ultill today everything worked fine, but today i was looking for a way to change the frequencies to let my cell work on the LTE network. I've read a few pages of the thread about it here on XDA , until i found the message of a user saying i could change the values by typing *#*#4636#*#* in the dialer and setting them by the menu. I've tapped for an error the USA frequencies and of course i didn't have signal, so i thought to try one of the displayed ones, and it apparently works with the AUS2 band, but i think it works only in 2G mode while H3G works only con 3G bands so at the moment i've a device working almost on wifi only. Of course i can receive and send calls. Is there a way to fix this? i've reinstalled the rom but i think it had changed something in the bootloader. I remember the guy on the topic said that this method had problems with cyanogenmod 11 and 12, and i'm on CM12.1. I'll try to flash a cyanogenmod 10 indeed
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EDIT: nevermind! thanks to a user here in CDA i've fixed it! apparently in the CM12 they didn't put the entry "automatic selection" or something like that, so i had to downgrade to CM11, change the selection to "automatic" and then reinstall the CM12.1 ... i hope it'll help someone else in the future

Dual SIM = Dual LTE?

Hi all,
do both SIM sockets support LTE/4G (switchable)?
Or is it like:
slot 1 = 2G/3G/4G
slot2 = 2G only
??
Thanks for your reply!

its 4g /3g

I'm not really sure but it should be 4g for both sims but you can use 4g with only one sim per time and you should also switch 4g on the sim while the phone is turned on. Let us know.

OK so does it mean I can use two SIM cards and choose on which one I want to use 4G data? It is not necessary to physically swap the cards?

Yes you can switch thst in the settings menu.

Data activated sim kart will work 4G, second one reduce to 3G.
In settings menu, when you change data sim kart, phone switch immediately.
Not unplug and plug to soft switch.
So yes, both sim slots supports 4G.
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Sent from my ZUK Z2121 using Tapatalk

Add Band RF to At&t note 3

Hello, i'm new and don't have much knowledge if I will ask have a solution, but here we go... (sorry for my english)
I have a SM-N900A with 4.4.2 Kitkat and rooted with xposed. Now in my country, 3G only works on 900 Mhz (wcdma), I followed various topics about "unlock all bands in qualcomm cpu but i don´t have good results.
First, I can´t pull in USB Settings (*#0808#) CP option and RNDIS + DM +Modem at the same time.
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If I keep the AP option, I can advance a little more in the process (i'dont know if is correct its). If I do it with mztool and QXDM I reach to get that the phone shows me differents regions, include select the wcdma 900 mhz band(see the picture), but never can get the 3G services (EDGE Works correctly ).
In case that I try by original way (QPST write phone) I got an alert on windows that only says "ban" and then continues, but before to finish , other alert "the phone has stopped responding to memory read write commands". and not work any mode,(no 2g, no 3g).In effect , normally don't pass it from "unlock Sim card" when I insert the PIN code.
What can i do for add this band to my phone, I love this phone, and I do not want to throw it away for this. thanks

Question Disable 5G?

I'm using an unlocked model and the "5G" (not UW) on Verizon is much slower than the 4G in my area. Is there any way to disable it?
It's 20mbps vs 100+mbps

Just go into network and change from 5G/4G/3G/2G to 4G/3G/2G
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Mine doesn't have those options.

A lot of issues with 5G and it's implementation both networks and on phones.
Rarely does it justify its existence except in limited areas. It's also a known battery hog even if not in use. Blame Qualcomm's bum rushing for that.
Avoid any 2 chipset solutions for 5G like the plague.
At first I had minor regrets of not having it on my 10+... now I'm damn glad I don't!

Try this
From play store download the app "Phone by Google"
Open the app and dial *#*#4636#*#* it's gonna open a secret menu,go to set preferred network type and change to LTE/CDMA/GSM/WCDMA

atheros93 said:
Try this
From play store download the app "Phone by Google"
Open the app and dial *#*#4636#*#* it's gonna open a secret menu,go to set preferred network type and change to LTE/CDMA/GSM/WCDMA
Click to expand...
Click to collapse
Thanks that worked!

Question I can't see VoLTE switches to turn on and off

I don't understand why Realme blocks the VoLTE and VoWiFi settings, I live in Mexico and I don't have these options to turn off or on.
Is it the same for the European region?
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When I make a call it uses the H network

hi bro, i live in mexico to, and i'm on altan network, newww exactly, did you have any solution for this situation? i've been searching and it is imposible to make volte work :c

no, you will have to root, there is a thread for the realme gt neo 2 that does it that way and in that same thread they have another method without root which was the one I used, but without success, the other is to use ATT, Movistar or Telcel.
How to enable VOLTE and VoWifi on Realme GT Neo 2 (and probably other Realme devices) when the toggles are not available in SIM info & settings
This post records how I combine many tutorials online and finally enable VOLTE and VoWifi on my Realme GT Neo 2 while the toggles are not available at the beginning. TLDR: Most Realme devices support VOLTE and VoWifi, but the toggles may not be...
forum.xda-developers.com
https://realme-gadgetlife.net/how-to-enable-volte/ in Japanes

with the last update C.10, the VoLTE is enable