Database Info

Use this to Change Carrier Bloatware on S4

Hi all
I do remember that now Samsung have all carrier's bloatware installed on phone.
user can change carrier bloatware files on the phone by dial certain codes.
for example, I can type some code to change a ATT phone to us cell, or Rogers to Bell.
but I can't find any infor on this. Any one can give me a key word hint or a link ? THX

found answer myself
http://forum.xda-developers.com/showpost.php?p=34524458&postcount=24

So has anyone tried the dialer code *#272*IMEI# on their AT&T S4 to see if it works. And if it works, could someone please post a screen shot of the results here? I would try it, but I don't have one (...yet). Of course you take the risk if it blows your phone up.

I did
I change i337m from Bell to Fido, then from Fido to bell again
I confirm this works
scott14719 said:
So has anyone tried the dialer code *#272*IMEI# on their AT&T S4 to see if it works. And if it works, could someone please post a screen shot of the results here? I would try it, but I don't have one (...yet). Of course you take the risk if it blows your phone up.
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yanyu said:
I did
I change i337m from Bell to Fido, then from Fido to bell again
I confirm this works
Click to expand...
Click to collapse
Could you get a screenshot of the *#272*IMEI# menu screen and post it here? I would like to see what other carrier options are available with the i337m? And, could someone do the same with the AT&T i337 version?
Thanks.

this is how it looks
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scott14719 said:
Could you get a screenshot of the *#272*IMEI# menu screen and post it here? I would like to see what other carrier options are available with the i337m? And, could someone do the same with the AT&T i337 version?
Thanks.
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How to change the network mode?

I live in Sri Lanka. I was able to get an unlocked AT&T G4 (H810) from USA and have used it for a few days now. I have realised that there is no option to change network modes. There is only the 4G mode on my G4 and its killing the battery. Tried changing my sim, updating the software etc. but no luck. Any method to fix this?
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RyanPoulier said:
I live in Sri Lanka. I was able to get an unlocked AT&T G4 (H810) from USA and have used it for a few days now. I have realised that there is no option to change network modes. There is only the 4G mode on my G4 and its killing the battery. Tried changing my sim, updating the software etc. but no luck. Any method to fix this?
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The AT&T software blocks it

hyelton said:
The AT&T software blocks it
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So rooting it and installing a different firmware version (most probably h810pr) is the only option?

RyanPoulier said:
So rooting it and installing a different firmware version (most probably h810pr) is the only option?
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Yes, but you dont root to install a different firmware version. Also its NOT recommended to do so unless you soft brick, as some its bricked there devices.

hyelton said:
The AT&T software blocks it
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hyelton said:
Yes, but you dont root to install a different firmware version. Also its NOT recommended to do so unless you soft brick, as some its bricked there devices.
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Yeah I've heard it's risky.. I'll just buy a battery bank.. pretty cheap over here
THANKS!

I believe the reason why you are unable to turn off just LTE is because the US versions do not have separate 3G/CDMA + LTE radios. They are all in one now. Unlike older models where you could disable the LTE/4G radio and just use 3G only. I do not think this is possible now.
Plus Carriers prefer you to use their 4G networks because it is cheaper and frees up the old 3G spectrum for emergencies and SMS, etc.
Don't quote me on this but this what I gathered.

If you install xposed you can use the Intelli3g module to switch to 3g.
I have used it on my G4 as I work in an area with strong LTE signal but horrible bandwidth. In that area, 3g is faster than the LTE

5G not working

Anyone can tell me how can I unlock all 5G network bands on oneplus nord now I am using Saudi Arabia
5G is full cover on my area but my phone always show 4G anyone can give me any solution

romjan201103 said:
Anyone can tell me how can I unlock all 5G network bands on oneplus nord now I am using Saudi Arabia
5G is full cover on my area but my phone always show 4G anyone can give me any solution
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Click to collapse
These are the bands supported by the oneplus nord according to gsmarena.com
5G bands 1, 3, 7, 28, 78 - Europe
78 - India
Make sure your carrier is using one of these bands. Some regions use different bands, and a phone made for a region might not work well in another.
Also, are you using dual sim? Because if you are, for Europe atleast when in dual sim mode 5G is disabled until a future firmware update patches things up.

Yes I don't see 5g. I have mobile plan with 5g but I don't we 5g. My provider eses N1 network at the moment. I don't understand why.
OnePlus 8t has the same problem.
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OnePlus like other phones have enabled 5G only certain networks. I have list in my blog and also instruction how you can modify your phone modem and enable 5G-support: https://mt-tech.fi/en/modify-oneplus-7-pro-5g-8-and-8-pro-nr-lte-a-band-combos/

As per the excellent guide from @olkitu above, I managed to get my OnePlus Nord to connect to 5G on Telstra (Australia) with pre-paid plan.
Additionally, I was able to get VoLTE and VoWiFi working reliably using this YT guide:
Edit: I'm on OxygenOS 10.5.9 (Android 10)

One question. Do I have to do it each and every time after every Software Update or it is permanent?

kelvintisw said:
One question. Do I have to do it each and every time after every Software Update or it is permanent?
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Yes you have to do. It's not permanent.

olkitu said:
Yes you have to do. It's not permanent.
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Got it! Thank you !

Does the US Unlocked Note 20 Ultra (N986U1) pyhsically support two sims?

Hello, I'm trying to clear something up once and for all, I bought a dual sim tray off amazon for my US Unlocked Note 20 Ultra, put two sims in it and inserted it in the phone. However absolutely nothing different happened, only the bottom sim (1) was recognized. I am wondering if the US Note 20 does not physically support two sims (or is these some trick to enable it in software, rooted or not)? If anyone knows for sure, please let me know!
Also on eSim functionality, I am able to get into the CSC menu but it only shows US codes, currently it looks like mine is set to TMB (despite it being unlocked straight from samsung), why do I not have any options for eSim (TMB is supposed to I think)?

Nope, only 1 Sim supported, pretty sure it doesn't have the hardware for two physical sims. Also even though you have T-Mobile csc on your unlocked, you need to flash T-Mobile firmware to use esim. (Essentially turning your U1 into a U. esim won't work on unlocked firmware.

Fatmonk8 said:
Nope, only 1 Sim supported, pretty sure it doesn't have the hardware for two physical sims. Also even though you have T-Mobile csc on your unlocked, you need to flash T-Mobile firmware to use esim. (Essentially turning your U1 into a U. esim won't work on unlocked firmware.
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Alright, thanks for the info on this!

This is hilarious.
I bought the 20 because it was widely advertised to have dual sim card support, which I want/need as E-sim is .. well, not really available yet.
So, all the advertisements for the phone everywhere list it as a dual sim card phone, but its not.
GG samsung. ffs. I'd have bought the standard note 20.
Only reason to keep the 20 ultra is the sim card support.
Which even then, the phone handles like crap.

The eSIM has finally been turned on for the unlocked Note 20 Ultra on UI 4.0 beta.
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Question T Mobile version

I got the unlocked version from the google store to use on Mint (T Mobile mvno). It does not connect to UC which I figured it wouldn't considering only the Verizon variant has mmWave. However, I went to the T Mobile store and tested their 6a variant and it did connect to mmWave UC, speed test over 500mbs. So I'm curious if loading the T Mobile rom on an unlocked phone would support it.

I purchased the unlocked version, and I get 5GUC on TMobile. But I don't think that it is mmwave

Ok, I see T-Mobile also refers to their n41 (2.5GHz) 5G as Ultra Capacity

JSZ77 said:
Ok, I see T-Mobile also refers to their n41 (2.5GHz) 5G as Ultra Capacity
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Yep. That's exactly what it is!
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I have the 6a bought from a T-Mobile store (well, mailed from T-Mobile as they didn't have sage in stock). I see 5GUC in some places in Ann Arbor, but don't see DL speeds over about 150....

Out in the wild, I never see over 150 either. However, in the T-Mobile store, I get UC and over 400. I have a theory they have one of those personal cell things in the store. I'm in the Cleveland area. I turn off 5G for the most part, it keeps the phone cooler and helps with battery life.

I'm betting that the 5G UC symbol is for native T-Mobile, not MVNOs. If you see Mint Mobile in your indicator, it just says "5G".
I believe only Verizon shows "Verizon" even if a MVNO is used. Most carriers show the MVNO name if one is used, and avoid the branded indicators.

You are right. Even though the band is the same, only the T-Mobile sim displays UC. Found a good video explaining the differences.

I have 2 questions related to T-Mobile and Google purchased phone. I am on T-Mobile and have the default build.
1. Is there anything to be gained or loss by flashing the newer T-Mobile B1 build vs default B1 build?
2. Does flashing to T-Mobile B1 build exclude me from the Android 13 Beta program?