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[Q] Updating an unlocked T-mobile Note 3 with latest firmware.. Is it possible?? HELP

Hey guys,
Saw a very good deal on ebay india, the seller is selling an unlocked version Note - 3 T-mobile (US), so it can work on Indian GSM carriers.
Now, if you see the description: it mentions:
"The OS Software is Unlocked to Work with all GSM SIMS.
You are not supposed to Update the OS Software as Unlock code is applied to it"
2 quick questions:
1) Can you help me understand what does the seller mean here? The device will obviously be running on JB, so i wont be able to update it to the officially released Kitkat? Will manually flashing a firmware from say Sammobile, revert the unlock code and make the device useless?
2) Buying a US phone for Indian use.. Will i miss out on any features? or will it be a problem in any way??
Please help me out guys

Install unbranded rom on o2 locked A3

Hi just ordered myself a samsung galaxy A3 on o2.
It is locked to o2 and has o2 branding.
Would like to unlock it and use a three sim with it but unfortunately o2 wont do it for 12 months and i dont know any pay monthly customer.
If i install unbranded rom on it then will it unlock?
Will really appreciate some help on this

Can flashing unlock the device ? I have exactly the same problem , My Samsung A3 SM-A300FU phone is locked to O2 , then i flashed a different firmware. Now I have coverage by EE | and roaming by my main network provider . I have full phone coverage. I don't get the UNLOCK Code message as well. BUT I CAN'T Recieve calls , send text or use any benefits of the inserted SIM Card . Has anyone found an answer ?

Try to flashing it to the stock rom check out the rom at sammobile.com/firmwares
Sent from my SM-A300H using Tapatalk

Network locked Note 3 not accepting unlock code

Hello guys,
About 22 months ago I grabbed a UK Note 3 (n9005 iirc) on the O2 network and loved it to bits. I requested my unlock code in early April, received it and proceeded to grab a new phone and passed my old Note 3 onto my Dad.
The Note 3 had it's bootloader unlocked, rooted, custom recovery flashed and running SlimLP and is till pretty great.
So my Dad pops his Three SIM into the Note 3, it asks for the unlock code, he puts the code in direct from the email I received from O2 and... code failed, unlock unsuccessful. My Dad being my Dad, asked me to input the code and nada, no go. O2 sent me a new code today after I spoke to them this morning and informed them... that new code is exactly the same as the old one that didn't work.
I checked the IMEI number against the one in the email and they match perfectly.
Could the fact that the the bootloader is unlocked, the phone is rooted, there's a custom rom on and/or a custom recovery installed be affecting the unlock code? My Dad has everything else working to his satisfaction on the phone all except this whole network issue.
At this moment in time I am quite frustrated that despite having the code it's not straight away simple and working as expected.
Any assistance would be most welcome.

The bootloader has never been locked on the phone afaik.
The unlock code needs to to be entered using a stock Samsung dialler.
I recommend flashing back to stock, sim unlock, flash back to a custom rom.

audit13 said:
The bootloader has never been locked on the phone afaik.
The unlock code needs to to be entered using a stock Samsung dialler.
I recommend flashing back to stock, sim unlock, flash back to a custom rom.
Click to expand...
Click to collapse
I'm sure the bootloader was locked as it triggered the void warranty bit but it's been so long ago that anything could have happened.
SlimLP uses the stock dialler for Lollipop anyway but it's no pain to flash the phone with a stock rom (does it matter if it's an O2 stock ROM or can it be a stock Lollipop Rom?) and give that a go.
Personally I use PixelPro dialler which doesn't seem to take over the phone part like it used to, only the dialler side.... But that's by the by.

Knox and a locked bootloader and two different things.
Knox is present in almost every Samsung android phone running 4.3 or higher. It is Knox that triggers the change from 0x0 to 0x1.
Locked bootloaders are present on phones from att and Verizon. There could be others but these seem to be the most common. Att and Verizon note 3 bootloaders, once locked, have never been successfully unlocked as no one has been able to find a working exploit.
When I say stock dialler, I am referring to the stock Samsung dialler.

Flashed back to a 5.1.1 stock O2UK network ROM, entered the code and voila.... network unlocked.
Thanks for the assist.

Strange boot sequence and unlock problem

I have a second hand note 3 n9005 it is verry Co fusing as on boot before rom. Use to flash up o2 however it's locked to ee I recently paid for aim unlock and have to return to store as been a problem
Why would it show o2 bloat Ware but be locked to ee?
A friend said flashing new modem may help is this possible or no reply way to network unlock in UK?
Any help is much appreciated thank you

What is the model number on download mode?

The model is showing as sm-n9005
Thanks

Carriers will use a custom csc file on a stock rom which means there could be multiple carriers with the same phone and different csc files. For instance, I have a bell phone and loaded Rogers firmware on the phone but the phone remains locked to bell.

Should i change the CSC? Unlocked Network

Hi. Recently i bought an S10+ and what i heard from the buyer is that the S10+ was locked on EE UK. (And after, he unlocked it)
I'm stuck on May update (SE7 EVR) so i was thinking to change the ROM to POL(Poland) for example.
It will be locked again on EE UK if i flash with Odin and change the ROM?

After the network sim unlock phone is unlocked no matter the rom.

brunotuga said:
After the network sim unlock phone is unlocked no matter the rom.
Click to expand...
Click to collapse
Thanks for the reply. I'm getting an error when i try to update: " Your current software isn't supported. Please visit a repair center"
I'm stuck on May Update. I'm thinking to switch the ROM.