Hi Guys my i9505 was originally on UK o2 network with all the network bloatware (4.2.2 old bootloader/knox free) I got the phone network unlocked with a code via the imei number.
Due to a warranty issue i will need to flash the original carrier rom which the phone came with.
What i would like to know is, will flashing the stock carrier rom affect the network lock? Like would i need to network unlock the phone again? Also are there any potential efs folder issues that could arrise? Any advice much appreciated, thanks.
Sent from my GT-I9505 using xda premium
Ive flashed O2 4.2/4.3, EE 4.3, BTU 4.2/4.3 and my phone was still unlocked, and no problems with efs.
Mines was unlocked with a 8 digit number from O2.
But you should still backup your efs.I dont because Im not worried about this phone......
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just bought one of these second hand it was on 02 network but seller has had it unlocked for any sim,problem is im getting all the 02 guff on it splashscreen etc !! model number is sm-n910f,any way of puting stock firmware on this to get rid of all the 02 stuff ? im on tmobile network and im in the uk,worried incase i done this & it removed the unlock ? any help and pointed in the right direction firmware for me would be most appreciated
kenf2210 said:
just bought one of these second hand it was on 02 network but seller has had it unlocked for any sim,problem is im getting all the 02 guff on it splashscreen etc !! model number is sm-n910f,any way of puting stock firmware on this to get rid of all the 02 stuff ? im on tmobile network and im in the uk,worried incase i done this & it removed the unlock ? any help and pointed in the right direction firmware for me would be most appreciated
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To get rid of carrier branding, you will need to flash unlocked stock rom using ODIN. Germany(csc=DBT) rom is the best for the SM-N910F. It will get rid of all bloatwares and carrier branding.
You can download the ROM from this thread: http://forum.xda-developers.com/not...ermany-dbt-t3029508/post59616447#post59616447
Hi,don't know how the previous owner unlocked this phone but when I send email etc it says I'm on 02 ? I'm on T-Mobile & the sim does work no problem,the rom your saying Germany ?? Would I not be better of with a T-Mobile stock or will that fill it with bloatware as well ?
I want to do something along these lines
I had an O2 Note 4, unlocked with a code and an EE SIM. Running on the German BTU Lollipop. Now though I'd like to flash it via Odin with the stock 4.4 EE ROM. Is this possible? Currently I have tried to do it but I get "volume size too big 245760 < 512000" when I try to flash it from Odin.
My basic question though is: can I effectively change my O2 UK supplied Note 4 ROM with the EE one. I want to use the EE tap and pay app with my shiny new EE NFC SIM and this doesn't appear to be allowed unless I'm on an EE ROM, in the future I'd also like to use EE wifi calling when that is released for Note 4 via (presumably) the EE Note 4 Lollipop update too.
I recently purchased a Galaxy S4 i9505 on EE from Carphone Warehouse, and flashed the 5.0.1 BTU firmware. After I did that I then read I'd need to be carrier unlocked, but I tried calling and receiving calls and messages and using 4g and it worked fine. I also saw some posts about flashing modems. Anyway I'm really confused about what I need to do; should I try and unlock or not. Thanks everyone for your help.
The BTU firmware has no carrier branding, which means it has no carrier logos or bloatware included in it. Other than the lack of carrier doodads, it's the same firmware. You shouldn't need to flash a modem as you already have the latest, from when you installed the BTU ROM. However, the S4 would need to be unlocked for use on any carrier if your SIM isn't an EE SIM. But, you either have an EE SIM, in which case you don't need to worry about it, or the S4 was unlocked by the store that sold it, in which case you don't need to worry about it.
TL;DR: Don't touch the ROM. Don't worry too much about the SIM because you can make calls and use data. You don't need to flash a modem.
Hey people, I have an issue going on here.
I was going to unlock, but decided to reflash firmware and change the csc from rogers over to bell.
Kies recognizes the phone now as being a 'bell' phone, and have done an update just to confirm it but it still will not accept a bell sim. Every time I have inserted a bell sim it requests the 4 digit unlock code. The sim works just fine in my S3 and another bell S4, so that is not the problem.
All settings in the phone also show it to be 'bell', home screen and all, so the csc did take.
All the modems/firmware on sammobile are multi-csc, as i have tried to just flash the modem alone after I extracted it.
I could care less about being truly carrier free, as I am locked into a bell agreement through work.
Any suggestions on this, or do i have to purchase a code? I assume its locked now so I cannot downgrade to my understanding to a lower modem to use the service menu to unlock.
Thanks for the input.
I've flashed from a Bell 4.4.2 to Telus 5.01 without issue and the phone will remain sim-locked. The only difference I have seen between the Bell, Telus, and Rogers ROM are the carrier apps included with each ROM.
The sim unlock code is 8 digits long.
You should be able to downgrade the i337m's 5.01 stock ROM to a i337m 4.4.2 stock ROM. Then install the 4.2.2 modem, root the phone, run region unlock app, re-flash stock 5.01, and the phone will be sim unlocked. Doing this will trip the knox counter to 1 and void any remaining warranty.
I tried to downgrade, but it didnt take. I will try again. I know there was a discussion on booting the phone and not signing into google then reflash again. Is this needed?
Thanks for the reply.
Well, I got it to work this time. Much appreciated
You tried to flash a stock 4.4.2 rom from sammobile.com? Were there errors in Odin?
So my S6 had an unfortunate trip in the lake, and I'm going to resort to my sisters old S4 (I owned one too, but I totalled it).
Mine was rooted and had GPE loaded on it.
My old model was an i9505 and noticed that my sisters is a i9507 which is a strange variant (assuming its 4G+).
Anyway, when she had it, the phone constantly overheated and would constantly reboot. We returned for repair many times, each time showing no signs of issue.
What I would like to know is;
Would i9505 roms suit this phone? Or would I have to make do with stock.
And secondly, I am with telstra and the S4 is with virgin (OPS). Is it as simple as flashing a i9507 ROM from telsra on it, or do I have to do something else? This is for the CSC of course.
Is the phone sim unlocked? I recommend sim unlocking the phone before flashing any ROMs, especially custom ROMs as the unlock code needs to be entered using a stock Samsung dialler.
CSC doesn't really matter if the phone is sim unlocked.
Stock firmware is here: http://www.sammobile.com/firmwares/database/GT-I9507/
audit13 said:
Is the phone sim unlocked? I recommend sim unlocking the phone before flashing any ROMs, especially custom ROMs as the unlock code needs to be entered using a stock Samsung dialler.
CSC doesn't really matter if the phone is sim unlocked.
Stock firmware is here: http://www.sammobile.com/firmwares/database/GT-I9507/
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Hmm stock firmware is only 5.0.1 and not for the carrier that I want. It's been so long since I've modded (since I've had stock S6 since I bought it). Can I change the CSC on that rom, or would it be locked to Optus.
Anyway I've put in my Telstra sim and it seems to work for the moment, picking up the telstra network and changing the APN's to telstras (maybe there is a CSC in the phone for TEL too?).
Just would like to know now if I'm able to use a GEL or AOSP rom for the i9505.
Thanks for the response.
The firmware should not matter. The CSC files are a customization of app for a particular carrier. There are 3 carriers in Canada (Rogers, Bell, Telus) for the s4 and I can cross-flash the firmware with no problems. I would be surprised if the phone can't work with Telstra if it is unlocked.
According to these specs, the 9507 uses a snapdragon 600 chip which is the chip used in the i337m and 9505: http://www.gsmarena.com/samsung_i9507_galaxy_s4_with_s600_spotted_in_glbench-news-6571.php
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.