How to Unlock LTE bands - General Questions and Answers

Please, would a moderator help me to post my help request in the right forum?
My factory unlocked Samsung Note 3 N9005, with KK 4.4.2 Polish fw, rooted, will not operate in LTE data even though it has the right frequencies/bands hardware. I have the right APN.
I need to access LTE Bands 1, 3, 8 and 20 (Vodafone Italy and Softbank Japan).
Do I need a new radio? A new modem? Do I only need to flash a specific firmware...? Which one? Where can I download it? How do I install it? It's it sufficient to flash another CSC?
Please help me to post this question in the right section! Thanks!
Sent from my SM-N9005 using Tapatalk

Related

[Q] Extremely hard Unlock SIM GS2 LTE (Skyrocket)

Hello, I recently bought a Samsung S2 Galaxy (LTE skyrocket - AT & T) of California, however, I live in Brazil and the phone came locked only for AT & T.
Here in Brazil we have a law requiring phone companies like AT & T Rogeres, etc.. Here they are Live, Tim, of course, Hi, just that they do not unlock phones abroad. I tried to contact AT & T however only support residents in the U.S., Brazilian contacted samsung and I answered that are not responsible for the distribution of this model (LTE) and that could not support.
I tried to unlock it through the cellunlocker, but I had no success in negotiation.
Researched and tested and there is no functional application for the release version LTE.
So I come to you guys asking for God's sake, who could unlock the LTE free. and if possible as it did, through that program, what a miracle it did, very grateful.
He´s
rooted (superuser) o
riginal firmware
gingerbread 2.3.5
samsung SGH-i727
kernel - 2.6.35.11
IMEI - 2012071989543
Q&a
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Us here in the US under att they will not unlock either
nrm5110 said:
Q&a
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Click to expand...
Click to collapse
I was ready QeA, go there and check if my answer is replied ;D. I Say another mode without sites, just manually or FREE unlock. thx
Can he use the same method for using the Skyrocket on T-mobile?
http://forum.xda-developers.com/showthread.php?t=1507825
What radio bands are used in Brazil?
Presbycusis said:
Can he use the same method for using the Skyrocket on T-mobile?
http://forum.xda-developers.com/showthread.php?t=1507825
What radio bands are used in Brazil?
Click to expand...
Click to collapse
thx I go ready about tmobile method, just one moment , and, here in Brazil, has variet of frequenc, like 850 - 900, and 1800mhz.
Presbycusis said:
Can he use the same method for using the Skyrocket on T-mobile?
http://forum.xda-developers.com/showthread.php?t=1507825
What radio bands are used in Brazil?
Click to expand...
Click to collapse
I ready, but i dont believe
---
I read, but do not think it's about the frequency, the real situation is to unlock the sim lock, and even with those mods, I believe that the cel is already unlocked them
hi. thanks for all, but I solved the problem with.cellunlocker, they finally send me the network codes freez and others. so can close this topic. thx again. ha. and really work. but a pay 25dollars .-.
just started this post...
http://forum.xda-developers.com/showthread.php?t=1599027
hope it leads somewhere
I doubt its a good idea to post imei just saying
Sent from my SAMSUNG-SGH-I727 using xda premium
c0ldm1nd said:
hi. thanks for all, but I solved the problem with.cellunlocker, they finally send me the network codes freez and others. so can close this topic. thx again. ha. and really work. but a pay 25dollars .-.
Click to expand...
Click to collapse
Dear c0ldm1nd,
I'm also brazilian, bougth a I727r (Rogers) at Miami and besides the phone is unlocked I'm not getting 3G 3G+ connection... only EDGE I'd like to know if you're able to get 3G 3G+ connection and how come was that possible.... any special procedure?

[Q] Request for a guide for Sim Unlock w modem downgrade

I have seen these threads about sim unlocking, goto phone press *#0011# etc...
but mine doesnt work, so doing some research it seems i need to downgrade the modem do this unlock and then upgrade the modem.
Now as i only got my S4 yesterday i dont fancy bricking it, ( converted from iphone jalibreaking )
IS there is guide on doing this whole process including the downgrade and upgrade?
Im on o2 UK with S4, i can provide further details if it would help.
Thanks in advance
If u are on the mf3 update from att there is no way to downgrade to the previous version I dont know on the other versions from Verizon or sprint
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4
im from the UK not an american network
Hmmm gotchw
Sent from my SAMSUNG-SGH-I337 using Tapatalk 4

Which international variant of Note Edge will work with AT&T LTE/4G

Hi, I would like to buy an unlocked (carrier/region) Note Edge. Can some one suggest the variant I should buy that will work with AT&T 4g/LTE bands in USA.
SM-N915F
SM-N915G
SM-N915T
Etc?
I don't think that is possible, as each countries have different band. That's why most international/factory unlocked phones don't have 4g/Lte capability. 3g and some lte is the most you are going to get with an international SM-N915F
Best bet would be to buy out an Att phone, and request them to unlock it so you have the 4g/Lte in the states.
I believe its a 30day period or so when the account is open before they give you the code. I know t-mobile policy is 3-4 weeks.
Agent5150 said:
Hi, I would like to buy an unlocked (carrier/region) Note Edge. Can some one suggest the variant I should buy that will work with AT&T 4g/LTE bands in USA.
SM-N915F
SM-N915G
SM-N915T
Etc?
Click to expand...
Click to collapse
go with the 915T (tmobile)
tmobile edge is the only one that has an unlocked bootloader (you can flash any rom, etc that is made for the EDGE)
the ATT, Verison, Sprint, etc are bootloader locked, and you cant unlock them as far as i know
Tmobile one, once its unlocked, thats it,, a world of possibilities in your hands.
Thanks. But why not SM-N915F the european or SM-N915G Asian version? are you saying those are also boot loader locked?
Agent5150 said:
Thanks. But why not SM-N915F the european or SM-N915G Asian version? are you saying those are also boot loader locked?
Click to expand...
Click to collapse
I am an att customer currently in Kuwait and I purchased the 915F because the LTE does crossover to them. I looked at the LTE bands and 2 out of 3 of them are the same. You just need to ensure you put the correct apn in.
I hope this helps.
The Note edge 915G will work with ATT LTE/4G
I have that model on Tmobile 4G LTE and it works fine. Since the update they took out the Lte icon and replaced it with 4G. But when you check the status menu it says LTE connection Type.
Is there a root for the Verizon note edge? If there isnt ...could I use a different model number with Verizon,and if so which one could I use. I would like to be able to root and bootloader unlock. Thanks
mwebb34 said:
Is there a root for the Verizon note edge? If there isnt ...could I use a different model number with Verizon,and if so which one could I use. I would like to be able to root and bootloader unlock. Thanks
Click to expand...
Click to collapse
The only root for Verizon Note Edge is with the developer edition. And no you can not use any other Note Edge variant on Verizon.
Sent from my SM-N915V D/E using XDA Free mobile app
DudePharaoh said:
go with the 915T (tmobile)
tmobile edge is the only one that has an unlocked bootloader (you can flash any rom, etc that is made for the EDGE)
the ATT, Verison, Sprint, etc are bootloader locked, and you cant unlock them as far as i know
Tmobile one, once its unlocked, thats it,, a world of possibilities in your hands.
Click to expand...
Click to collapse
Question - I have an unlocked SM-N915T that I'm going to use with AT&T. To get Lollipop should I use Samung Kies or will it OTA ?
Pittsburgh_Bill said:
Question - I have an unlocked SM-N915T that I'm going to use with AT&T. To get Lollipop should I use Samung Kies or will it OTA ?[/QUOTE
to get lollipop, you can use either. Not sure if the TMO sim would work with the ATT phone. But you wont be able unlock the ATT phone.
Click to expand...
Click to collapse
Pittsburgh_Bill said:
Question - I have an unlocked SM-N915T that I'm going to use with AT&T. To get Lollipop should I use Samung Kies or will it OTA ?
Click to expand...
Click to collapse
To get the AT&T lollipop update on a tmobile phone you will need to use Kies or Odin 3 to flash it as it won't recognize the tmobile Sim when attempting to look up AT&T servers for the update.
Agent5150 said:
Hi, I would like to buy an unlocked (carrier/region) Note Edge. Can some one suggest the variant I should buy that will work with AT&T 4g/LTE bands in USA.
SM-N915F
SM-N915G
SM-N915T
Etc?
Click to expand...
Click to collapse
I have the Rogers SM-N915W8 that works perfectly on AT&T LTE.

[Completed] [Q] Modem required for unlocked SM-N900P (Sprint) using T-Mobile

I rooted and unlocked my Sprint Note 3 so I could use it with T-Mobile. To unlock the phone I had to flash N900PVPUBMI3 modem using the steps found here: forum.xda-developers.com/showthread.php?t=2593305
I am travelling through Europe and I have very unstable data, and I think it is because of the modem. I am running AICP 5.1.1 lollipop ROM, and I want to know what modem I should flash. I believe the modem file needs to be paired to the service provider, not the phone model, but I am not sure.
Any help determining what modem I should flash will be greatly appreciated!
Cheers!
Hi, thank you for using XDA Assist. The best place to ask is in the thread you provided, forum.xda-developers.com/showthread.php?t=2593305. Or in your device's specific forum here, http://forum.xda-developers.com/note-3-sprint. They are the experts on your device.
Thread closed.

SM-N910H 3g network issue.

Hello everyone I'm new to XDA so sorry if this is the wrong way to ask a question, i have a Galaxy note 4 (SM-N910H) recently updated to MM via Nepal firmware but i live in India and I use vodafone sim, but i'm unable to select 3g (WCDMA) network as it gets no service but works fine with (GSM). so please anyone help, do i have to flash a diffrent modem or something?

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