Flashing AT&T ROM to another carrier - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

I was wondering if anyone has successfully flashed an AT&T rom to another carriers device, specifically a Verizon galaxy s4. I was told to try it but I wanted to know if it's been done before.

Is the bootloader on your s4 unlocked?

audit13 said:
Is the bootloader on your s4 unlocked?
Click to expand...
Click to collapse
No it is not.

That's good. However, flashing an i337 ROM onto your phone may result in a hard brick. I don't know about the partition layouts on i337 vs version s4.
With an s3, cross-flashing custom ROMs from an international s3 to a North American s3 will hard brick the North American s3.

audit13 said:
That's good. However, flashing an i337 ROM onto your phone may result in a hard brick. I don't know about the partition layouts on i337 vs version s4.
With an s3, cross-flashing custom ROMs from an international s3 to a North American s3 will hard brick the North American s3.
Click to expand...
Click to collapse
I think mine is an international version. How would confirm if it is or not?

Is the Verizon s4 a cdma phone with an 3g/LTE sim slot? Flashing an AT&T ROM to your phone may disable phone calls and data as the AT&T ROM requires a specific bootloader and radio frequencies to work. It could also hard brick the phone.
If I were in your position, I would find out how to flash a custom ROM before attempting to flash the AT&T ROM.
Any particular reason you want/need the AT&T ROM?

audit13 said:
Is the Verizon s4 a cdma phone with an 3g/LTE sim slot? Flashing an AT&T ROM to your phone may disable phone calls and data as the AT&T ROM requires a specific bootloader and radio frequencies to work. It could also hard brick the phone.
If I were in your position, I would find out how to flash a custom ROM before attempting to flash the AT&T ROM.
Any particular reason you want/need the AT&T ROM?
Click to expand...
Click to collapse
My phone has CDMA and GSM network settings. I am using this phone on AT&T because I cannot afford to buy a new one right now. Everything works except sending sms on a LTE signal. Fails every time. If I switch to HSPA+ I can send sms but being on this signal causes my battery to drain really quickly for some reason. So I'm trying to sms to work properly on a LTE signal. Someone suggested I try flashing a AT&T rom to my phone since it would most likely have the correct sms files which he believes is why sms doesn't work properly while on a LTE signal.

I understand. Are the APN settings the same for 3g and LTE?

audit13 said:
I understand. Are the APN settings the same for 3g and LTE?
Click to expand...
Click to collapse
Yes they are

I did a quick search and found this:
Does your mobile web work? mms uses mobile data and standard text messages do not. I have had mobile data take up to 2 days to work on a new activation you stated you took the apn settings off the att site but I just thought I would post what is on my phone just in case it may be different
Name: ATTPhone
apn: Phone
mmsc:http://mmsc.mobile.att.net
Multimedia message proxy: proxy.mobile.att.net
Multimedia message Port: 80
mcc:310
mnc:410
apn type: default:mms:hipri
both standard and roaming protacols are ipv4
everything else is not set also try turning mobile data off then back on.
also make sure that the phone is in global mode

audit13 said:
I did a quick search and found this:
Does your mobile web work? mms uses mobile data and standard text messages do not. I have had mobile data take up to 2 days to work on a new activation you stated you took the apn settings off the att site but I just thought I would post what is on my phone just in case it may be different
Name: ATTPhone
apn: Phone
mmsc:http://mmsc.mobile.att.net
Multimedia message proxy: proxy.mobile.att.net
Multimedia message Port: 80
mcc:310
mnc:410
apn type: default:mms:hipri
both standard and roaming protacols are ipv4
everything else is not set also try turning mobile data off then back on.
also make sure that the phone is in global mode
Click to expand...
Click to collapse
Yeah everything works except send sms. I can receive sms all day but it fails to send. I can send and receive mms, make and receive calls and browse the web. It's just send a standard text message fails every time. Those are the same APN settings I have currently. And it's not a new activation. I've been trying to figure out a solution to this for about a month.

international version has better roms than any other carrier ....... am using an s4 att version with international carhdrom 4.4.2

Verizon S4 on At&t
schultz915 said:
My phone has CDMA and GSM network settings. I am using this phone on AT&T because I cannot afford to buy a new one right now. Everything works except sending sms on a LTE signal. Fails every time. If I switch to HSPA+ I can send sms but being on this signal causes my battery to drain really quickly for some reason. So I'm trying to sms to work properly on a LTE signal. Someone suggested I try flashing a AT&T rom to my phone since it would most likely have the correct sms files which he believes is why sms doesn't work properly while on a LTE signal.
Click to expand...
Click to collapse
The reason it isn't working on LTE is because the Verizon S4 only supports 2 LTE bands and does not have all the LTE bands needed for the AT&T network. There is no way for you to use the LTE network fully and get SMS to work. This is a hardware limitation.
US GSM (AT&T - Model: SGH-I337):
GSM/EDGE: 850/900/1900/1800 MHz
UMTS/HSPA+: 850/1900/2100 MHz
LTE: 700/850/1700/2100/2600 MHz
US CDMA (Verizon - Model: SCH-I545)
CDMA EV-DO Rev. A and Rev. B: 800/1900 MHz
GSM/EDGE: 850/900/1800/1900 MHz
UMTS/HSPA+: 850/900/1900/2100
LTE: 700/1700 MHz (Bands 4, 13)
I have not personally needed to do this, but you can modify your "SMSC" preferred network type from "LTE/GSM" to "GSM Auto" which should route all your SMS messages through HSPA+ instead of LTE. Therefore, you can use your phone on LTE (calls/data) like normal but the SMS will be HSPA+.
Root device if you arent.
Install Advanced Signal Status
Hit "Additional Info" in the app and then "Phone information".
Change dropdown for "Set preferred network type:" to "GSM Auto".
You can hit "Refresh" button and it should show "+13123149810" for AT&T otherwise change it to that for AT&T.
Restart phone.
Hopefully that works!

nasapunk88 said:
The reason it isn't working on LTE is because the Verizon S4 only supports 2 LTE bands and does not have all the LTE bands needed for the AT&T network. There is no way for you to use the LTE network fully and get SMS to work. This is a hardware limitation.
US GSM (AT&T - Model: SGH-I337):
GSM/EDGE: 850/900/1900/1800 MHz
UMTS/HSPA+: 850/1900/2100 MHz
LTE: 700/850/1700/2100/2600 MHz
US CDMA (Verizon - Model: SCH-I545)
CDMA EV-DO Rev. A and Rev. B: 800/1900 MHz
GSM/EDGE: 850/900/1800/1900 MHz
UMTS/HSPA+: 850/900/1900/2100
LTE: 700/1700 MHz (Bands 4, 13)
I have not personally needed to do this, but you can modify your "SMSC" preferred network type from "LTE/GSM" to "GSM Auto" which should route all your SMS messages through HSPA+ instead of LTE. Therefore, you can use your phone on LTE (calls/data) like normal but the SMS will be HSPA+.
Root device if you arent.
Install Advanced Signal Status
Hit "Additional Info" in the app and then "Phone information".
Change dropdown for "Set preferred network type:" to "GSM Auto".
You can hit "Refresh" button and it should show "+13123149810" for AT&T otherwise change it to that for AT&T.
Restart phone.
Hopefully that works!
Click to expand...
Click to collapse
Actually I can activate all the LTE bands through one of the hidden menus. But when I do it still doesn't work.

schultz915 said:
Actually I can activate all the LTE bands through one of the hidden menus. But when I do it still doesn't work.
Click to expand...
Click to collapse
That is because the Verizon S4 itself, hardware wise, does not support all the bands AT&T uses (like band 17). There is nothing you can do to make your phone work on network frequencies that your device doesn't support, no software can change that.
Sorry.

nasapunk88 said:
That is because the Verizon S4 itself, hardware wise, does not support all the bands AT&T uses (like band 17). There is nothing you can do to make your phone work on network frequencies that your device doesn't support, no software can change that.
Sorry.
Click to expand...
Click to collapse
But in the service menu I have it shows all those bands and gives me the option in which ones to activate

Related

unlocked on at&t no 3g

I tried to get the $15 (200 meg) data package to work, but there is no signal showing up on the phone. anyone got any ideas?
Yeah. I have really good idea....... at&t sucks
-------------------------------------
Sent via the XDA Tapatalk App
They use different freqs for the different companies 3g in the states, at&t uses the "standard" freqs and tmob uses its own due to fcc regs. They may also use different flavors of 3g also(ie UMTS, HSPDA, wcdma) the acronyms are endless...
-------------------------------------
Sent via the XDA Tapatalk App
jeffbichel said:
I tried to get the $15 (200 meg) data package to work, but there is no signal showing up on the phone. anyone got any ideas?
Click to expand...
Click to collapse
Any ATT data plan should work, but only with ATT's 2G service*.
there are a few things I could think of that could be causing your problem which are separated by phone or network problems (these are all assuming your phone is searching for signal and isn't giving you any obvious errors about the sim):
PHONE PROBLEMS
1. Your MT slide is locked to WCDMA only, which won't work on ATT (see explanation below*).
2. Your unlock method didn't work.
3. Any other random prob with your handset hardware/software.
NETWORK PROBLEMS
1. You are not in a ATT 2G coverage area
3. You are in a location that the ATT 2G signal is being blocked.
2. There is an ATT network outage in your area.
The quickest way to narrow down your prob is to get a hold of an ATT phone that is working (either from a friend or an ATT store) and test your sim in that phone. that will tell you if you need to start troubleshooting your phone or your sim/att service.
*ATT uses a different frequency for their 3G coverage (ATT uses 1900 mhz and 850 mhz WCDMA as oppose to T-Mobiles 1700 mhz WCDMA). this means that if you locked your phone to WCDMA on the slide, then it is going to try to look for an ATT signal at 1700 mhz, which does not exist. Unfortunately there is no way to "re-tune" the radio hardware in most devices to operate on a different frequency, so your probably stuck with 2G only if you continue to use ATT.
the only exception that I know of is the blackberry bold 9700, in which the radio hardware actually supports all gsm/wcdma bands, and just has the "Carrier appropriate" bands enabled in the software. this may be the case with the MT slide, but I doubt it.
UMM before any of that I'M GUESSING YOU HAVE THE PROPER AT&T APN SETTINGS?? Correct?? .. if not, you need to find the att apn address and replace the stock epc address
turboyo said:
UMM before any of that I'M GUESSING YOU HAVE THE PROPER AT&T APN SETTINGS?? Correct?? .. if not, you need to find the att apn address and replace the stock epc address
Click to expand...
Click to collapse
and if this was the case what epc would we need?
No clue research it Im sure its simple to find ATT APN address ..our stock tmobile one is epc.tmobile.com
if you want something to try, try this but i have no idea if this is for att's new plans
Name: AT&T
APN: wap.cingular
Proxy: leave blank
Port: leave blank
Username:[email protected]
Password:CINGULAR1
Server: leave blank
MMSC: http://mmsc.cingular.com
MMS Proxy: wireless.cingular.com
MMS Port: 80
MCC:310
MNC:410
APN Type: leave blank
turboyo said:
UMM before any of that I'M GUESSING YOU HAVE THE PROPER AT&T APN SETTINGS?? Correct?? .. if not, you need to find the att apn address and replace the stock epc address
Click to expand...
Click to collapse
The apn definately must be correct to use data once the phone finds signal and connects to ATT's network, but jeffbichel said his problem is that the phone isnt getting any signal to begin with. the apn only comes into play once your phone has already found and connected to a cell tower.
I read elsewhere that the only way to get a Slide working with 3G on AT&T is to order one destined for Roger's telecom Canada since they use the same 3g frequencies as AT&T...
You can use a TMO phone on AT&T, the 3G will not work, EDGE only. On an Android phone the APN settings must be set correctly for AT&T for the data to work.

[Q] LTE Bands supported by UK LG G2 (D802)

Does UK LG G2 (D802) support LTE Band 20 (800 MHz) used by O2 UK?
Does anyone know this?
Use info command
okgnew said:
Does anyone know this?
Click to expand...
Click to collapse
1) Go to Phone, just enter following command,
*#*#4636#*#* (no need to press Green Dial Button after this).
2) Once you enter last *, Testing menu will appear. From that menu,select "Phone Information"
3) Scoll down little and you will see "Set Preferred network type". There is dropdown at this location which shows all the networks.
Just note,This is testing menu. It will show all the options like CDMA/WCDMA, GSM, LTE etc. It does not mean that all the networks are supported.
Just insert LTE sim and change option of preferred network from above list to LTE only and check if that works.
Officially it supports 850, 900 bands. But I am wondering if the bands are only controlled software side seeing that the antennas and hardware seem to be streamlined across all versions.
On the box it says:
LG-D802
LTE 2100/1800/2600/900/800
6GB
BLACK BLACK
Thank you for the test menu you solved my problem I just bought the d802 would not work on my 4g sim in uk changed to lte and all good thanks.
Sorry to bring this one back form the dead but the original question doesn't appear to be answered to me...?
I am on Three in the UK and they are rolling out 4G on 800Mhz and 1800Mhz. Complete noob here, but from what I have read 800Mhz has greater range and building penetration (at the expense of some speed), which is great. Except that the G2 doesn't actually support 800Mhz LTE, or does it?
yogG2 said:
1) Go to Phone, just enter following command,
*#*#4636#*#* (no need to press Green Dial Button after this).
2) Once you enter last *, Testing menu will appear. From that menu,select "Phone Information"
3) Scoll down little and you will see "Set Preferred network type". There is dropdown at this location which shows all the networks.
Just note,This is testing menu. It will show all the options like CDMA/WCDMA, GSM, LTE etc. It does not mean that all the networks are supported.
Just insert LTE sim and change option of preferred network from above list to LTE only and check if that works.
Click to expand...
Click to collapse
I'm on Tesco mobile (O2) and have the 32GB D802, and my 4G wasn't working in central Manchester (could only get HSDPA) Just followed your instructions and boom, 4G instantly with full signal inside 16mbps on speed test
mole51 said:
I'm on Tesco mobile (O2) and have the 32GB D802, and my 4G wasn't working in central Manchester (could only get HSDPA) Just followed your instructions and boom, 4G instantly with full signal inside 16mbps on speed test
Click to expand...
Click to collapse
same here with tesco, set the above and worked fine, but after restart just defaults back to gsm/wcdma auto as preferred and need to go through the steps again to achieve 4g. Anyway to save this as preferred?
markgranto said:
same here with tesco, set the above and worked fine, but after restart just defaults back to gsm/wcdma auto as preferred and need to go through the steps again to achieve 4g. Anyway to save this as preferred?
Click to expand...
Click to collapse
+1 Same here. would like to know as well. Kinda dumb that LG doesn't have LTE as a choice on an LTE supported device...
---------- Post added at 11:44 AM ---------- Previous post was at 11:38 AM ----------
markgranto said:
same here with tesco, set the above and worked fine, but after restart just defaults back to gsm/wcdma auto as preferred and need to go through the steps again to achieve 4g. Anyway to save this as preferred?
Click to expand...
Click to collapse
I found and downloaded the free app 4G LTE Switch from the play store to help with this.
While it doesn't solve the problem of having to manually select LTE after each reboot, it saves you from having to dial the code yourself. Instead, just launch the app and it takes you right to those settings. I find it very useful and time saving! :good:
islandboy_2000 said:
+1 Same here. would like to know as well. Kinda dumb that LG doesn't have LTE as a choice on an LTE supported device...
---------- Post added at 11:44 AM ---------- Previous post was at 11:38 AM ----------
I found and downloaded the free app 4G LTE Switch from the play store to help with this.
While it doesn't solve the problem of having to manually select LTE after each reboot, it saves you from having to dial the code yourself. Instead, just launch the app and it takes you right to those settings. I find it very useful and time saving! :good:
Click to expand...
Click to collapse
cheers for the heads up, i'll give it a bash, still find it very strange that a 4G phone doesn't come with an easier way to actually activate 4G.
markgranto said:
cheers for the heads up, i'll give it a bash, still find it very strange that a 4G phone doesn't come with an easier way to actually activate 4G.
Click to expand...
Click to collapse
No problem man. I didn't give up searching and actually followed this thread, where it says "No 4G/LTE?" and tried putting my networks actualy LTE band (17) in there instead of 11 and 13. While it now gived the option of selectiong LTE in the dropdown menu of preferred networks, for some stupid reason, the phone STILL doesn't save the setting and you still have to go back to the menu again after a restart to enable LTE.
While it is even easier than the method I said earlier, still frustrating that even after selecting it in the menu, that it still defaults back to GCM/CDMA!
There just HAS to be a way to make this stick. Any devs out there who could look into this further???
The thread: http://forum.xda-developers.com/showthread.php?t=2681205
Hello,
I am from Portugal, so your mobile could say something rather different. But in essence is all the same.
My version is the D802, International model, just like yours.
1.st step - Provider:
The provider part is always the first to be deal with.
Make sure you go to your operator and ask to enable your SIM-card to have access to LTE.
2.nd step - Equipment:
Go to Definitions -> "Network" tab -> "Sharing connecting & Network" on the bottom -> "Mobile Network" third from last ->
a) Make sure that "Enable Data" is checked;
b) Go to "Network Mode" and choose the option: "GSM (2G) / WCDMA (3G) / LTE (4G) auto".
This way you will always have automatic access to the best network available.
All the people who choose the 4G/LTE only option should check this mode, so you can access 3G when 4G is not available, instead of having no connecting.
Any doubt you have, just ask!
Best regards.
hitardo said:
Hello,
I am from Portugal, so your mobile could say something rather different. But in essence is all the same.
My version is the D802, International model, just like yours.
1.st step - Provider:
The provider part is always the first to be deal with.
Make sure you go to your operator and ask to enable your SIM-card to have access to LTE.
2.nd step - Equipment:
Go to Definitions -> "Network" tab -> "Sharing connecting & Network" on the bottom -> "Mobile Network" third from last ->
a) Make sure that "Enable Data" is checked;
b) Go to "Network Mode" and choose the option: "GSM (2G) / WCDMA (3G) / LTE (4G) auto".
This way you will always have automatic access to the best network available.
All the people who choose the 4G/LTE only option should check this mode, so you can access 3G when 4G is not available, instead of having no connecting.
Any doubt you have, just ask!
Best regards.
Click to expand...
Click to collapse
Step 2 in bold, that's not an option. 3 options are
1. GSM / WCDMA auto
2. WCDMA only
3. GSM only
However when using the 4G switcher app you can change it to GSM (2G) / WCDMA (3G) / LTE (4G) auto and it works fine, but on reboot just defaults back to GSM / WCDMA auto.
Our D802 supports 1800 Mhz and 2600 Mhz frequencies for sure.
But to get the LTE toggle to show up in the network selection menu, we need to insert a LTE capable sim or usim. Tried and tested and not a here say.
If you do not get LTE option in network selection then your sim is not LTE capable. Simple.
sanke1 said:
Our D802 supports 1800 Mhz and 2600 Mhz frequencies for sure.
But to get the LTE toggle to show up in the network selection menu, we need to insert a LTE capable sim or usim. Tried and tested and not a here say.
If you do not get LTE option in network selection then your sim is not LTE capable. Simple.
Click to expand...
Click to collapse
Well the sim I have is LTE capable, When I change the options with the 4G switcher app I instantly get the 4G signal and can get speeds of near 50mbps.
markgranto said:
Step 2 in bold, that's not an option. 3 options are
1. GSM / WCDMA auto
2. WCDMA only
3. GSM only
However when using the 4G switcher app you can change it to GSM (2G) / WCDMA (3G) / LTE (4G) auto and it works fine, but on reboot just defaults back to GSM / WCDMA auto.
Click to expand...
Click to collapse
The option in my phone is:
"GSM (2G) / WCDMA (3G) / LTE (4G) auto"
All this information at one option.
So the phone can choose the highest band level.
This is a problem with your ROM or a problem with your SIM.
And, as I said in my first post, go always first to your provider and ask him form help.
Making sure the SIM part is enabled and fully accessible.
The bands are not important here.
That is because, if you bought your smartphone in the UK, LG made available the D802 model to make your smartphone antenna frequencies correspond to those available at your country.
This will matter if you want to achieve maximum speed of 150Mbps.
But if you want just the regular user experience, you sure have access to LTE network.
In wikipedia (I could not find a good source, as GSMArena make no reference on the version D802)
Wikipedia -> LG G2 -> Specifications
D802 supports 4G/LTE bands:
800, 900, 1800, 2100, 2600
And here you can see the bands of your provider/network:
Wikipedia -> List of LTE networks -> Europe
EE: 1800, 2600
Hutchison 3: 800, 1800
O2: 800
UK Broadband: 3500, 3600
Vodafone: 800
This is wikipedia information, so take this with a pinch of salt, and search for a better source.
hitardo said:
The option in my phone is:
"GSM (2G) / WCDMA (3G) / LTE (4G) auto"
All this information at one option.
So the phone can choose the highest band level.
This is a problem with your ROM or a problem with your SIM.
And, as I said in my first post, go always first to your provider and ask him form help.
Making sure the SIM part is enabled and fully accessible.
The bands are not important here.
That is because, if you bought your smartphone in the UK, LG made available the D802 model to make your smartphone antenna frequencies correspond to those available at your country.
This will matter if you want to achieve maximum speed of 150Mbps.
But if you want just the regular user experience, you sure have access to LTE network.
In wikipedia (I could not find a good source, as GSMArena make no reference on the version D802)
Wikipedia -> LG G2 -> Specifications
D802 supports 4G/LTE bands:
800, 900, 1800, 2100, 2600
And here you can see the bands of your provider/network:
Wikipedia -> List of LTE networks -> Europe
EE: 1800, 2600
Hutchison 3: 800, 1800
O2: 800
UK Broadband: 3500, 3600
Vodafone: 800
This is wikipedia information, so take this with a pinch of salt, and search for a better source.
Click to expand...
Click to collapse
Its a UK sim free handset, and i'm on tesco (which is O2).
Sim card is fine as tested in another 4G phone and defaults to 4G as it should after collecting the APN settings from the network. Checked the APN and both the exact same compared to the one the LG G2 is using.
I'm using stock rom and this happened initially on JB, then updated to KK, factory reset, and still the same, then updated last week, still the same.
From reading this thread looks like i'm not the only one.
markgranto said:
Its a UK sim free handset, and i'm on tesco (which is O2).
Sim card is fine as tested in another 4G phone and defaults to 4G as it should after collecting the APN settings from the network. Checked the APN and both the exact same compared to the one the LG G2 is using.
I'm using stock rom and this happened initially on JB, then updated to KK, factory reset, and still the same, then updated last week, still the same.
From reading this thread looks like i'm not the only one.
Click to expand...
Click to collapse
Wikipedia, and other websites, say O2 only acquired 800MHz band for LTE.
And LG G2 D802 only supports:
850 (band 5), 900 (band 8), 1800 (band 3), 2100 (band 1), 2600 (band 7) MHz.
I saw this at PhoneArena, GSMArena and ATGSM.
This brings a problem for people which their carrier only emits LTE at 800MHz, when not supported by come smartphones.
But I recommend you all to ask LG about the frequencies supported by the LG G2 D802 version, and ask your network carrer/ provider for LTE frequencies.
That way you will be absolutely sure about its compatibility or not.
hitardo said:
Wikipedia, and other websites, say O2 only acquired 800MHz band for LTE.
And LG G2 D802 only supports:
850 (band 5), 900 (band 8), 1800 (band 3), 2100 (band 1), 2600 (band 7) MHz.
I saw this at PhoneArena, GSMArena and ATGSM.
This brings a problem for people which their carrier only emits LTE at 800MHz, when not supported by come smartphones.
But I recommend you all to ask LG about the frequencies supported by the LG G2 D802 version, and ask your network carrer/ provider for LTE frequencies.
That way you will be absolutely sure about its compatibility or not.
Click to expand...
Click to collapse
wikipedia is saying....LTE band support 800/900/1800/2100/2600, however tesco (o2) are definitely on 800mhz, so must be something to do with LG so it will no doubt be them who has to answer the question, and never do anything about it.

[Q] Cross flashing SGH-I337M with I9505 firmware?

I want to use my SGH-I337M in the UK - the phone is unlocked and I have a UK O2 4G SIM. GSM and UMTS seem to work ok, but I can't get LTE to work
Do I need to (and is it possible) to cross flash with a UK model (i.e. I9505) firmware?
Any help will be much appreciated.
adamh128 said:
I want to use my SGH-I337M in the UK - the phone is unlocked and I have a UK O2 4G SIM. GSM and UMTS seem to work ok, but I can't get LTE to work
Do I need to (and is it possible) to cross flash with a UK model (i.e. I9505) firmware?
Any help will be much appreciated.
Click to expand...
Click to collapse
You can't flash their official firmware, you can flash their ROM. I'd say check your carrier's LTE APN first, it may be putting in one that doesn't connect to LTE. Otherwise, your phone may not have the LTE band in it's radio, or it just doesn't like you ;P
DeadlySin9 said:
You can't flash their official firmware, you can flash their ROM. I'd say check your carrier's LTE APN first, it may be putting in one that doesn't connect to LTE. Otherwise, your phone may not have the LTE band in it's radio, or it just doesn't like you ;P
Click to expand...
Click to collapse
The LTE configuration that O2 uses is:
800MHz, band 20, FDD​
The phone was bought in Mexico, and Samsungs Mexican site says:
LTE (700 / 850 / AWS / 1,900 / 2,100 / 2,600 MHz)​
However, the Canadian site says:
LTE Cat 3 (800 / 850 / 900 / 1800 / 2100 / 2600 MHz) * Dependent on market​
So I suspect the hardware supports 800MHz no problem, but perhaps it's not configured for that out of the box - do you think I would need to flash another ROM or baseband to get this support?
Thanks.
adamh128 said:
The LTE configuration that O2 uses is:
800MHz, band 20, FDD​
The phone was bought in Mexico, and Samsungs Mexican site says:
LTE (700 / 850 / AWS / 1,900 / 2,100 / 2,600 MHz)​
However, the Canadian site says:
LTE Cat 3 (800 / 850 / 900 / 1800 / 2100 / 2600 MHz) * Dependent on market​
So I suspect the hardware supports 800MHz no problem, but perhaps it's not configured for that out of the box - do you think I would need to flash another ROM or baseband to get this support?
Thanks.
Click to expand...
Click to collapse
If you can make calls but not get data, I would say you have something going on with the APN settings, do you see an APN for O2?
Gage_Hero said:
If you can make calls but not get data, I would say you have something going on with the APN settings, do you see an APN for O2?
Click to expand...
Click to collapse
I can get 2G and 3G data no problem, but I can never connect to a 4G network even for calls.
The APN I have set has the following settings:
APN mobile.o2.co.uk
Proxy 193.113.200.195
Port 8080
Username o2web
Server not set
MMSC proxy not set
MMS port not set
MCC 234
MNC 10
Authentication type PAP
APN type default,soul
Bearer LTE
Mobile virtual network operator type none

XT1527/XT1528 bands

Compiled from FCC information and Wikipedia for two of the Moto E LTE models:
FCC ID IHDT56QC8 (XT1528) -
This LTE transceiver supports high-speed wireless data communications within LTE Bands 2, 4, 5, and 13, with channels up to 20 MHz in bandwidth.
FCC ID IHDT56QC7 (XT1527) -
This LTE transceiver supports high-speed wireless data communications within LTE Bands 2, 4, 5, 12, 17, 25, 26, and 41, with channels up to 20 MHz in bandwidth.
From Wikipedia:
2 = 1900Mhz (PCS)
4 = 1700Mhz (AWS)
5 = 850 (Cellular?)
12 = 700 a
13 = 700 c
17 = 700 b
25 = 1900 g
26 = 850 (SMR?)
41 = 2500 (old WiMax)
So, the Verizon model (1528) will technically support LTE on AT&T and T-Mobile bands 2 & 4. It has all three Verizon LTE bands (obviously) - 2, 4, 13. You would be missing LTE on AT&T band 17 and LTE on T-Mobile band 12.
The other model (1527) will support LTE on AT&T in 2, 4, and 17. Will support Sprint on 2, 25, 26, and 41. Will support T-Mobile on 2, 4, and 12. Technically it might also support Verizon on 2 and 4. (Verizon is currently using 4 as part of XLTE in certain markets, and I don't know if think are running LTE on 2 at all. )
It appears that the 1527 model is the better one to get for band coverage, unless you want Verizon LTE on band 13.
Found a third model. From FCC docs:
FCC ID: IHDT56QC1.
This mobile device is also equipped with an LTE transceiver. This LTE transceiver supports high-speed wireless data communications within LTE Bands 2, 4, 5, 7, 12, and 17, with channels up to 20 MHz in bandwidth.
This particular variant will work on LTE on AT&T in bands 2, 4, and 17. It will work on LTE on T-Mobile in 2, 4, and 12. It will work on Verizon's LTE on 2 and 4, but is missing Verizon's core band 13 (700c). Not sure which provider is using it with on band 5 (850). This model apparently (compared to QC7) is missing the Sprint LTE bands completely (25, 26, 41).
acadiel said:
Not sure which provider is using it with on band 5 (850).
Click to expand...
Click to collapse
AT&T uses LTE band 5 in certain rural areas
Does the Verizon XT1528 support GSM bands?
All postpaid Verizon 4g lte have UNLOCKED GSM bind if I am correct. Has Verizon been able to block GSM bands in the Moto E 2015?
I have been trying to figure this for last couple of days.
Thanks
Yes Verizon Moto e 2015 Comes international unlock for GSM/CDMA Sim.
samratunlock said:
Yes Verizon Moto e 2015 Comes international unlock for GSM/CDMA Sim.
Click to expand...
Click to collapse
the Verizon Moto E 2015, sadly ISN'T internationally unlocked, i currently have two and they won't connect to my GSM netwrok . I'd assume this is also the case for domestic USA networks
i also having verizon model
works with indian gsm carrier.
wow!!! this is the break-through i've been waiting for, how did you get the device to work on a gsm carrier?
interkaiser said:
wow!!! this is the break-through i've been waiting for, how did you get the device to work on a gsm carrier?
Click to expand...
Click to collapse
I got the VZW Moto E working on a AT&T GoPhone SIM. The phone complains that it isn’t a VZW sim and there isn’t an option to switch to GSM is the settings menu. Though you can definitely adjust that setting elsewhere (no rooting involved). Just install this app "4G LTE Switch" . All the app does is spawn an activity that is actually in the Android Settings app that normally is only accessible by a special code in the dialer. Motorola has removed that special code, so you have to get at it this way. This app is hardly the only one to do the same thing. You could do the same thing from APEX launcher by selecting the right activity to spawn in the Android Settings app.
Once you’re into the Phone Info menu, just scroll down to “Set preferred network type” and choose LTE/GSM. Once I did that, the phone connected to AT&T LTE. I was able to place a call as well. I also saw it drop to H+, so I know UMTS was working as well. If you reboot the phone though, it will revert to “LTE/CDMA” mode and you will again have to change it back to “LTE/GSM”.
A STRONG WORD OF CAUTION... There is a menu in the upper right hand corner of the phone info screen. In that menu is an option to "Set Radio Band". In there, you will be presented with two options. Choosing either option will limit the bands your phone will use at a given time. It will not open up more bands for you to use. By default, your phone's baseband (the processor that controls the radio) will select bands automatically without restrictions. Once you make a selection from this menu, YOU CAN NEVER GO BACK TO AUTOMATIC MODE. (Never say never... you can just reflash the baseband to reset it... but you don't want to have to do this) A factory reset doesn't fix this because this setting is made in the phone's baseband and not within Android OS. Bottom line, don't get curious and use the "Set Radio Band" option. I made this mistake with a Moto X and was finally able to fix it by reflashing the baseband.
---------- Post added at 06:46 AM ---------- Previous post was at 06:20 AM ----------
samratunlock said:
i also having verizon model
works with indian gsm carrier.
Click to expand...
Click to collapse
This intrigues me as well. Airtel, the most popular carrier in India, runs GSM 1800,900 UMTS 2100 LTE 40 (2300). The VZW Moto E according to the RF Exposure Report on the FCC for IHDT56QC8 says that the Moto E only supports CDMA 1900,850 GSM 1900,850 UMTS 1900,1700,850 LTE 2 (1900), 4 (1700), 5 (850), 13 (750). That would mean that there is no way that a VZW Moto E would run on Airtel. Does the phone support more bands than are listed in the FCC filing or did you do something else like flash a different baseband?
JasonPro11 said:
I got the VZW Moto E working on a AT&T GoPhone SIM. The phone complains that it isn’t a VZW sim and there isn’t an option to switch to GSM is the settings menu. Though you can definitely adjust that setting elsewhere (no rooting involved). Just install this app "4G LTE Switch" . All the app does is spawn an activity that is actually in the Android Settings app that normally is only accessible by a special code in the dialer. Motorola has removed that special code, so you have to get at it this way. This app is hardly the only one to do the same thing. You could do the same thing from APEX launcher by selecting the right activity to spawn in the Android Settings app.
Once you’re into the Phone Info menu, just scroll down to “Set preferred network type” and choose LTE/GSM. Once I did that, the phone connected to AT&T LTE. I was able to place a call as well. I also saw it drop to H+, so I know UMTS was working as well. If you reboot the phone though, it will revert to “LTE/CDMA” mode and you will again have to change it back to “LTE/GSM”.
A STRONG WORD OF CAUTION... There is a menu in the upper right hand corner of the phone info screen. In that menu is an option to "Set Radio Band". In there, you will be presented with two options. Choosing either option will limit the bands your phone will use at a given time. It will not open up more bands for you to use. By default, your phone's baseband (the processor that controls the radio) will select bands automatically without restrictions. Once you make a selection from this menu, YOU CAN NEVER GO BACK TO AUTOMATIC MODE. (Never say never... you can just reflash the baseband to reset it... but you don't want to have to do this) A factory reset doesn't fix this because this setting is made in the phone's baseband and not within Android OS. Bottom line, don't get curious and use the "Set Radio Band" option. I made this mistake with a Moto X and was finally able to fix it by reflashing the baseband.
---------- Post added at 06:46 AM ---------- Previous post was at 06:20 AM ----------
It worked!!!!!!!!!!!!!! thank you so much
Click to expand...
Click to collapse
XT1528
interkaiser said:
JasonPro11 said:
I got the VZW Moto E working on a AT&T GoPhone SIM. The phone complains that it isn’t a VZW sim and there isn’t an option to switch to GSM is the settings menu. Though you can definitely adjust that setting elsewhere (no rooting involved). Just install this app "4G LTE Switch" . All the app does is spawn an activity that is actually in the Android Settings app that normally is only accessible by a special code in the dialer. Motorola has removed that special code, so you have to get at it this way. This app is hardly the only one to do the same thing. You could do the same thing from APEX launcher by selecting the right activity to spawn in the Android Settings app.
Once you’re into the Phone Info menu, just scroll down to “Set preferred network type” and choose LTE/GSM. Once I did that, the phone connected to AT&T LTE. I was able to place a call as well. I also saw it drop to H+, so I know UMTS was working as well. If you reboot the phone though, it will revert to “LTE/CDMA” mode and you will again have to change it back to “LTE/GSM”.
A STRONG WORD OF CAUTION... There is a menu in the upper right hand corner of the phone info screen. In that menu is an option to "Set Radio Band". In there, you will be presented with two options. Choosing either option will limit the bands your phone will use at a given time. It will not open up more bands for you to use. By default, your phone's baseband (the processor that controls the radio) will select bands automatically without restrictions. Once you make a selection from this menu, YOU CAN NEVER GO BACK TO AUTOMATIC MODE. (Never say never... you can just reflash the baseband to reset it... but you don't want to have to do this) A factory reset doesn't fix this because this setting is made in the phone's baseband and not within Android OS. Bottom line, don't get curious and use the "Set Radio Band" option. I made this mistake with a Moto X and was finally able to fix it by reflashing the baseband.
---------- Post added at 06:46 AM ---------- Previous post was at 06:20 AM ----------
It worked!!!!!!!!!!!!!! thank you so much
Click to expand...
Click to collapse
Hi guys. Help. I am in Ukraine, I bought XT1528 put "4G Switcher" GSM but I have not earned. What will advise?
Click to expand...
Click to collapse
LTE/CDMA to GSM/WCDMA Sim card
Thanks for the advice, It worked with app "4G LTE Switch", BUT the sim card is still not recognizable, I mean it says Sim card is not from Verizon. Luckily the phone and the SIM card are working now. Thanks again my friend
JasonPro11 said:
I got the VZW Moto E working on a AT&T GoPhone SIM. The phone complains that it isn’t a VZW sim and there isn’t an option to switch to GSM is the settings menu. Though you can definitely adjust that setting elsewhere (no rooting involved). Just install this app "4G LTE Switch" . All the app does is spawn an activity that is actually in the Android Settings app that normally is only accessible by a special code in the dialer. Motorola has removed that special code, so you have to get at it this way. This app is hardly the only one to do the same thing. You could do the same thing from APEX launcher by selecting the right activity to spawn in the Android Settings app.
Once you’re into the Phone Info menu, just scroll down to “Set preferred network type” and choose LTE/GSM. Once I did that, the phone connected to AT&T LTE. I was able to place a call as well. I also saw it drop to H+, so I know UMTS was working as well. If you reboot the phone though, it will revert to “LTE/CDMA” mode and you will again have to change it back to “LTE/GSM”.
A STRONG WORD OF CAUTION... There is a menu in the upper right hand corner of the phone info screen. In that menu is an option to "Set Radio Band". In there, you will be presented with two options. Choosing either option will limit the bands your phone will use at a given time. It will not open up more bands for you to use. By default, your phone's baseband (the processor that controls the radio) will select bands automatically without restrictions. Once you make a selection from this menu, YOU CAN NEVER GO BACK TO AUTOMATIC MODE. (Never say never... you can just reflash the baseband to reset it... but you don't want to have to do this) A factory reset doesn't fix this because this setting is made in the phone's baseband and not within Android OS. Bottom line, don't get curious and use the "Set Radio Band" option. I made this mistake with a Moto X and was finally able to fix it by reflashing the baseband.
---------- Post added at 06:46 AM ---------- Previous post was at 06:20 AM ----------
This intrigues me as well. Airtel, the most popular carrier in India, runs GSM 1800,900 UMTS 2100 LTE 40 (2300). The VZW Moto E according to the RF Exposure Report on the FCC for IHDT56QC8 says that the Moto E only supports CDMA 1900,850 GSM 1900,850 UMTS 1900,1700,850 LTE 2 (1900), 4 (1700), 5 (850), 13 (750). That would mean that there is no way that a VZW Moto E would run on Airtel. Does the phone support more bands than are listed in the FCC filing or did you do something else like flash a different baseband?
Click to expand...
Click to collapse
Will the boost variant work on net10 byop at&t towers
Sent from my N800 using XDA Free mobile app
If I unlock this phone,
Will calls and Sms work fine over 3G/2G networks?
For example: Tmobile or AT&T.
JasonPro11 said:
A STRONG WORD OF CAUTION... There is a menu in the upper right hand corner of the phone info screen. In that menu is an option to "Set Radio Band". In there, you will be presented with two options. Choosing either option will limit the bands your phone will use at a given time. It will not open up more bands for you to use. By default, your phone's baseband (the processor that controls the radio) will select bands automatically without restrictions. Once you make a selection from this menu, YOU CAN NEVER GO BACK TO AUTOMATIC MODE. (Never say never... you can just reflash the baseband to reset it... but you don't want to have to do this) A factory reset doesn't fix this because this setting is made in the phone's baseband and not within Android OS. Bottom line, don't get curious and use the "Set Radio Band" option. I made this mistake with a Moto X and was finally able to fix it by reflashing the baseband.
Click to expand...
Click to collapse
Appreciate the warning, but there is a simple workaround I just accidentally did this and the radio was disabled, but if you set 'LTE/GSM' in the app, and then go into normal 'settings -> Wireless & Networks -> More -> Cellular networks -> Network Operators -> Choose Automatically' will bring back auto selection.
reliance cdma dat working
samratunlock said:
i also having verizon model
works with indian gsm carrier.[/QU
Sir, Let me confirm that Moto E2 verizon model works on indian CDMA like Reliance with EVDO data
and Wifi . Please enlight me with clear details on Reliance CDMA data.[/SIZE]
Click to expand...
Click to collapse
SURESH1770 said:
samratunlock said:
i also having verizon model
works with indian gsm carrier.[/QU
Sir, Let me confirm that Moto E2 verizon model works on indian CDMA like Reliance with EVDO data
and Wifi . Please enlight me with clear details on Reliance CDMA data.[/SIZE]
Click to expand...
Click to collapse
One silly question Reliace cdma with 3g data.. where is it available?
Is it there in Andhra Pradesh or Tamil nadu or karnataka?
Click to expand...
Click to collapse
Harish_Kumar said:
SURESH1770 said:
One silly question Reliace cdma with 3g data.. where is it available?
Is it there in Andhra Pradesh or Tamil nadu or karnataka?
Click to expand...
Click to collapse
RELIANCE CDMA EVDO DATA available in Tamilnadu. not 3g..
pls let me confirm work wifi hotspot with data
Click to expand...
Click to collapse
I was wondering if you were able to find a solution for the settings to stick after each reboot??
Thanks in advance
unlocking my bootloader please help
heres the strain of numbers if gave me or can someone email me i need help with unlocking my bootloader and rooting
9900054517528400#5441313034304258365900585431353238000000#9D541D95274C5C9106ACBCBB74377E3150881F95#924C6908000000000000000000000000

N900L Network Data Issues LTE GSM WCDMA no automatic switching

READ THE [UPDATE] DOWN BELOW
Many Note3 Korean Variant users also reported this case
https://forum.xda-developers.com/showthread.php?t=2484602&page=115
The problem is that, I can't connect to LTE without losing my Network Radio Service Connection. I can connect to E/G/3G/H/H+ and still have network service, so I can still make calls and text messages, but when I turn on my Mobile Data, when it tries to connect to LTE, suddenly my service gets diconnected and I can't make phone calls nor messages though I could still use the data. I've already tried 3 LTE-Capable SIMS but the issue still happens.
What I had in mind is that it might be because it is Carrier Locked since it is a Korean Variant, but the problem still persists even after flasing other custom roms (this includes Note 7 Port ROMS, LineageOS, Stock-Based ROMS).
I love my Note 3, I will do anything to keep it alive, but still this one problem keeps bugging me...
Why can't I use both LTE data connection and radio service connection simultaneously?
Is anyone out there knowledge and willing enough to help us Note 3 KV users with this issue? :crying:
[UPDATE]
I get it now, when a phone is using LTE it means its not connected to any Mobile Network Service, instead it is connected to Data Network Service, yet it should receive Phone calls and Messages but it means that the phone will disconnect to LTE and switch to GSM/WCDMA (E/G/H/3G/H+) to be able to recieve the incoming call or message. I've tried that with my friends' phones, The first phone is connected to Data and is using LTE and the other phone is trying to call the first phone. The moment I call the first phone, I noticed that the LTE icon dropped to H and then recieve the call, It only happened because the option selected on the "Network Mode" (under Settings/More Networks/Mobile Networks-->Network Mode) is [LTE/WCDMA/GSM auto connect] so that's how it works
But that doesn't happen to my phone, after turning off the Mobile Data (I was connected to LTE btw) my phone doesn't automatically connect to GSM nor WCDMA network, it just stay on LTE mode and I have to manually select the GSM/WCDMA option in order to get Network Service.
So my final question is Why doesn't my Note 3 automatically switches Network Mode?
Note 3
Model Number: N900L
Status: Rooted with Custom Note 7 Port ROM
Condition: Good, No History of Repair
Current Network: SMART Prepaid
Does it work on genuine non custom stock firmware ??
JJEgan said:
Does it work on genuine non custom stock firmware ??
Click to expand...
Click to collapse
No it doesn't, the problem is already there even before I rooted my device. Flashing stock lollipop rom on odin didn't help either
Llamas_are_Good said:
No it doesn't, the problem is already there even before I rooted my device. Flashing stock lollipop rom on odin didn't help either
Click to expand...
Click to collapse
Please start to read about LTE technology and its frenquency bands.
Then find answers to these questions :
1- My SM-N900L is locked to use which frequency bands ?
2- Wich bands are in use in my actual location (country) ?
3- Is it possible to unlock more frequency bands for my N900L ?
i can provide more help if things remains not clear enough.
Good luck :good:
zlazaar said:
Please start to read about LTE technology and its frenquency bands.
Then find answers to these questions :
1- My SM-N900L is locked to use which frequency bands ?
2- Wich bands are in use in my actual location (country) ?
3- Is it possible to unlock more frequency bands for my N900L ?
i can provide more help if things remains not clear enough.
Good luck :good:
Click to expand...
Click to collapse
I tried searching the supported LTE bands of N900L but I can't find any sites that tell exactly what the N900L actually supports though I found out on this forum
https://www.frequencycheck.com/models/AZzWA/samsung-sm-n900s-galaxy-note-3-lte-a
1) A / P / T / V models are made exclusively for the US operator market and for no other people, as their indexes hint (A-AT & T / P-SPRINT / T-MOBILE / V-VERIZON). In Europe, mainly international versions are used - in the case of NOTE 3 - exclusively N9005, in Canada - its own carrier versions.
2) The models N900S / N900K / N900L are identical in the set of supported frequencies. If you rewind the topic on page 9, you will see screenshots of one of these models, which show the frequencies you are using, in one of the screens you will see the treasured frequency of LTE b7. I think that users of this topic can be trusted with respect to information in the topic, but no one has elected you the right to believe solely on the site www.frequencycheck.com.
Click to expand...
Click to collapse
I did try checking my phone on www.frequencycheck.com, N900L is not on the list..
https://www.frequencycheck.com/models/AZzWA/samsung-sm-n900s-galaxy-note-3-lte-a
N900S though shows that it supports Bands 3, 5, and 17.
I also look it up on wikipedia on where the SMART network (my current network) falls on the list of LTE frequency bands, and it shows that it is on Band 05 alongside with South Korean Networks LGU+ and SKT. The supported LTE bands on my country are Band 1, 3, 5, 7, 28 and 41
https://www.frequencycheck.com/countries/philippines
I searched for how to unlock all LTE frequency bands on N900L or Korean Variants or Note 3 but the only option that shows up is by accessing the Service Menu on Stock ROM and manually changing the values, which still didn't work for me.
According to my search, N900L is locked to :
LTE protocol : B1 (2100) and B5 (850)
LTE-A protocol : B3 (1800) and B7 (2600)
Now try to find the specific frequency band used by your carrier (he can't use all of the six available bands in Philippines), and activate it.
Wich stock firmware do you use when trying to access Service Mode ? It must be the LGU+ one.
And what code did you dial for the same purpose ?
zlazaar said:
According to my search, N900L is locked to :
LTE protocol : B1 (2100) and B5 (850)
LTE-A protocol : B3 (1800) and B7 (2600)
Now try to find the specific frequency band used by your carrier (he can't use all of the six available bands in Philippines), and activate it.
Wich stock firmware do you use when trying to access Service Mode ? It must be the LGU+ one.
And what code did you dial for the same purpose ?
Click to expand...
Click to collapse
When you said activate, you mean select the band to be used by the phone right?
- Yes, I used the LGU+ Lollipop Stock ROM
- I typed in the dialpad, *#0011# and changed the network preference to LTE ONLY.
Llamas_are_Good said:
When you said activate, you mean select the band to be used by the phone right?
- Yes, I used the LGU+ Lollipop Stock ROM
- I typed in the dialpad, *#0011# and changed the network preference to LTE ONLY.
Click to expand...
Click to collapse
I mean activate only the LTE's frquency band used by your carrier.
Check your PM.
zlazaar said:
I mean activate only the LTE's frquency band used by your carrier.
Check your PM.
Click to expand...
Click to collapse
I've already done that, but the problem with radio service network is still present, I can't make or receive any phones calls nor messages.

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