I have an AT&T S3 running stock 4.4.2 on the NE4 Modem AND Baseband. (purchased this way). Not being new to rooting, I find myself a bit nervous to flash any custom roms with this modem and baseband. Since I am already on the NE4 modem and baseband, can I or can I not flash a custom rom with the same thing? Be it AOSP, AOKP or TW? Any non-smart-alec comments would be greatly appreciated. I've google and read the forums but most of the post I've seen has been stating not to flash unless coming from another baseband and you are upgrading. I understand the fact you can't downgrade.
You can flash any rom designed for the d2lte as long as the rom supports the bootloader.
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Hey guys
I installed a nightly of CM11 a while ago and it broke my LTE. The consensus is that you need to install a stock-based ROM, then flash back to CM11 to get LTE working again.
I have flashed an MK5 modem, but am unsure of my bootloader compatibility with the current TouchWiz ROM's out there.
I am on the MF1 bootloader (Canadian phone). Do I need to upgrade/downgrade my bootloader to install any of these TW ROM's? Or can I just flash between TW and CM11 to my heart's consent?
The ROM's say you must be running a 4.3 modem and bootloader...but I can't find any info on whether or not MF1 is a 4.3 bootloader or not?
Thanks,
Elliott
Bump
I haven't tried cm11 yet but using c-rom I had these problems. under settings-mobile networks-preferred network type, check to see the right network is selected. If you don't have these options then my apologies.
Starholdest said:
Hey guys
I installed a nightly of CM11 a while ago and it broke my LTE. The consensus is that you need to install a stock-based ROM, then flash back to CM11 to get LTE working again.
I have flashed an MK5 modem, but am unsure of my bootloader compatibility with the current TouchWiz ROM's out there.
I am on the MF1 bootloader (Canadian phone). Do I need to upgrade/downgrade my bootloader to install any of these TW ROM's? Or can I just flash between TW and CM11 to my heart's consent?
The ROM's say you must be running a 4.3 modem and bootloader...but I can't find any info on whether or not MF1 is a 4.3 bootloader or not?
Thanks,
Elliott
Click to expand...
Click to collapse
MF1 is 4.1.2. The latest Canadian bootloader is MK5 (Which you can't downgrade from).
BWolf56 said:
MF1 is 4.1.2. The latest Canadian bootloader is MK5 (Which you can't downgrade from).
Click to expand...
Click to collapse
Oh geez okay. So what should I do?
Sent from my S3
Starholdest said:
Oh geez okay. So what should I do?
Sent from my S3
Click to expand...
Click to collapse
Well usually you need the same modem as your bootloaders. Some of them are really picky so having the MK5 might be why your LTE isn't working.
You can grab the stock ROM in the general stickies and flash it with Odin though (make sure to backup) if flashing a 4.1.2 modem doesn't fix it.
BWolf56 said:
Well usually you need the same modem as your bootloaders. Some of them are really picky so having the MK5 might be why your LTE isn't working.
You can grab the stock ROM in the general stickies and flash it with Odin though (make sure to backup) if flashing a 4.1.2 modem doesn't fix it.
Click to expand...
Click to collapse
Okay. What I'm most concerned about is flashing a 4.3 TW ROM with the bootloader that I have. Is having a bootloader from 4.1.2 a bad thing? Or can I install all ROM's with MF1?
Sent from my S3
Starholdest said:
Okay. What I'm most concerned about is flashing a 4.3 TW ROM with the bootloader that I have. Is having a bootloader from 4.1.2 a bad thing? Or can I install all ROM's with MF1?
Sent from my S3
Click to expand...
Click to collapse
Only the downgrade is dangerous, you can upgrade without any problem. That being said, you could just flash the stock 4.1.2.
And if I flash a stock based ROM will it upgrade my bootloader to one I won't be able to downgrade from?
Any suggestions for ROM's?
Sent from my S3
Starholdest said:
And if I flash a stock based ROM will it upgrade my bootloader to one I won't be able to downgrade from?
Any suggestions for ROM's?
Sent from my S3
Click to expand...
Click to collapse
It depends which one you decide to flash. You can flash stock 4.1.2 just like you could flash 4.3 (which you can't downgrade from).
Hi, sorry this is probably a noob question but I've been reading through the forums and got confused how to update my rooted s4. Normally I would just install the custom rom with the update but it seems like this isnt the case right now.
I'm currently on 4.2.2, rooted, and have wicked as my rom. How would I update to 4.4.4? From what I understand there is a new modem and firmware... something to do with NH7? Can someone explain to me what NH7 does. Thanks for all your help!
NH7 is the newest firmware based on 4.4.4 and it is recommended if you plan of using 4.4.4 tw roms. To update it just download the NH7 firmware from general thread and flash it with Odin, after that you can use cf-auto root to root, or if you're just planning to flash a ROM then just flash recovery and then flash ROM.. If you care about tripping your Knox counter then just know that flashing recovery or rooting will trip it
babexdragon said:
Hi, sorry this is probably a noob question but I've been reading through the forums and got confused how to update my rooted s4. Normally I would just install the custom rom with the update but it seems like this isnt the case right now.
I'm currently on 4.2.2, rooted, and have wicked as my rom. How would I update to 4.4.4? From what I understand there is a new modem and firmware... something to do with NH7? Can someone explain to me what NH7 does. Thanks for all your help!
Click to expand...
Click to collapse
You mention that you want to update and that under normal circumstances you would simply flash the an updated custom ROM... yet you say you've read it isn't that simple, right?
You are correct, it isn't THAT simple, but it is ALMOST that simple. Being as that you are still on the old 4.2.2 pre-KNOX bootloader and all, you can flash and flash and flash all day long and a single use of Triangle Away is all you'd need to still be able to revert your device back to 100% stock, both firmware AND flash counters if you ever needed to for some reason. If you use Odin, Kies, or take an OTA update you will lose that ability. Anything you flash once you go through official channels to update will trip your KNOX counter... and that cannot be reset. The problems you've read about simply flashing an updated custom ROM is that you will have problems with data.
The data drops can be avoided by flashing the newest modem, which would be NH7. Understand though, that method only updates your GSM modem; your LTE modem would be unaffected. This would only be a problem though if you are having trouble receiving LTE where others with the same carrier can get it with no problem. If you aren't having any problems with LTE, then I would recommend to simply update your GSM modem and use the custom recovery of your choice (ClockWorkMod, Philz Touch, or TWRP) to flash any of the ROMs in the T-Mobile GS4 Android Development section.
To update your GSM modem, follow the instructions in this thread. That thread is for updating to the 4.4.2 NB4 modem, which that modem would actually be all you need; but if you wish to have the NH7 modem, just use the modem.bin ONLY file from this post instead of the modem package included in the tutorial thread. After that little bit of work, you can flash any Android version you want; from 4.2.2 all the way up to 4.4.4... AOSP, TouchWiz, or the Google Play Edition ROMs.
So from what I understand...
1. Update the modem not firmware
2. Flash ROM
So I don't need to re-root?
You are correct.
No need to re-root.
Hi guys I need some information regarding to How to root, flash Custom ROMS, flash various Recoveries and if I want to revert back to full stock ROM whenever I want to how will I do it?
My device model is SGH-I747M (Rogers Carrier) and I've updated it to the latest OTA update 4.4 KitKat
I've seen may threads regarding to the SGH-I747 but all are for AT&T carrier but not any single for the Rogers carrier why?
Do you have any warranty left on your phone? Flashing a custom recovery will trip the warranty counter and change it from 0 to 1.
audit13 said:
Do you have any warranty left on your phone? Flashing a custom recovery will trip the warranty counter and change it from 0 to 1.
Click to expand...
Click to collapse
I haven't rooted/flashed nothing on my phone yet. All I'm just asking the question bro and yea I don't have any warranty for it
The easiest way to root, in my opinion, is to flash a custom recovery in Odin. After flashing a custom recovery, boot into recovery, flash supersu, boot the phone, allow supersu to update and disable knox. Then boot back into recovery, create a nandroid backup, and flash a custom ROM for the d2lte.
To flash back to stock, you can restore your nandroid backup or flash a stock ROM from sammobile.com. Just make sure to match the sammobile.com ROM with your bootloader.
The big difference between the i747 (AT&T) and the i747M (various Canadian carriers) is the bootloader and modem. They are NOT interchangeable between the i747 and the i747M. I haven't seen any of the custom ROMs for these SGS3s that flash bootloader and modem. Therefore any of the custom ROMS for the i747 will work with the i747M. Custom TouchWiz based ROMs are safe to use.
If the instructions for installing a ROM say that you must be on the NE4 or NJ1 bootloader and modem, the equivalent for the Rogers i747M are (NDx?), NF2, and NKx. From your original post I believe you are on the NKx bootloader and modem pair. This is good for any of the Kitkat and Lollipop ROMs. The only catch is that the updater-scripts for some of the older KK ROMs may not recognize the newest bootloader and modems. The ROMs are still good, it just takes a bit of work to get them installed. The same extra work would actually allow you to run a JellyBean (4.3) ROM.
Stock ROMs, those designed to return your device to factory condition (+/- root and +/- custom recovery), require much more care.
If you ever need to return to stock for your i747M, DO NOT flash a ROM that will down grade your modem and bootloader. Downgrading the bootloader and modem once you are at, or past, the 4.3.x versions will brick the i747 and I have read it will do the same for the i747M. If you can not find a stock ROM in the forums for the i747M you can find them at sammobile.com.
There are some stock ROMs available in the forums that include the AT&T bootloader and modem. DO NOT flash/install any of these.
There are stock ROMs for the i747 in the forum that do not contain bootloader and modem. These are safe for you, but BE CAREFUL. You do not want to mistakenly try to install one that does have the bootloader and modem
Also, do not flash a modem that does not match your bootloader in version number. This did not matter prior to the 4.3 bootloader and modem, it has ever since.
Hello all,
About a year ago I flashed v28 (4.4.2) of Omega ROM. I don't believe I flashed an sgh-m919 specific version, though I don't quite remember, and through a few searches I couldn't find the same older thread for the ROM. I also don't remember if I flashed anything else, bootloader, modem, kernel etc. I feel like I might have flashed a modem at the time. Possibly a kernel but I don't think I changed anything about my kernel.
My phone is getting slow and unstable and I'd like to update to v41 (latest, 5.0.1) of Omega ROM. The thread is over in the international i9505 development forum. I barely remember how any of this works anymore beyond simply putting the ROM on my sdcard, wiping everything, and flashing through recovery, and so the mention needing to flash XXUHOB8 bootloader and modem in the Omega ROM installation post made me question whether I could simply wipe and update, since the bootloader and modem are for international i9505 and I have the t-mobile phone.
Also, Im going to flash the latest version of TWRP. Initially I would think I would flash jfltetmo, as per the tmobile s4 TWRP on the TWRP website. But if I'm using an i9505 rom, do I need to flash the international version of TWRP (jfltexx)?
Basically, my question is, should I expect any problems if I just flash the i9505 bootloader and modem to my sgh-m919 and then flash the new Omega ROM? Do I need to do something with the bootloader and modem specific to the sgh-m919?
You don't need anything i9505. Just update to 4.4.4 NK2 firmware with odin and flash the latest twrp, followed by the rom
I have a Samsung S3 AT&T version, SGH-i747. The phone is rooted and I have the ROM backed up using CWM.
Can I flash this phone with the stock T-Mobile ROM version without any issues (I believe it is T999?).
My goal is to get wifi calling which doesn't come with the ATT model and from what I've read, if I can install the T-Mobile stock ROM or a custom version of it, it will come the wifi calling capability.
Thanks
Hi,
According to my experience, I would say NO.
But you can try it. And if it doent work, revert back to your ROM
By the way I am using custom ROM too on ATT phone.
It may be a matter of semantics, but do not install the stock T-mobile rom. Stock implies you will also be flashing the bootloader and modem. Installing the T999 bootloader and modem on the i747 will brick it. Anything from Sammobile would flash bootloader and modem.
Now, I have seen a number of CM, AOSP, and custom TouchWiz (based on Stock Samsung) ROMs for the i747 that will run on the T999. I would think the reverse would hold true, the T999 ROMs running on the i747. AS LONG AS they do not flash bootloader and modem. BE ADVISED, I have not searched the T999 threads to verify this conjecture. Some doubt enters my mind as I recall that T999 ROMs support AWS while i747 ROMs do not, this may break running them on the i747.
The T999 roms should run fine for the most part. It's safe to flash one to try, just DO NOT flash the firmware as mentioned above.
As for WiFi calling, don't get your hopes up. If I'm not mistaken it's tied into the modem (part of the firmware you cannot flash). So unless you have a T999, WiFi calling won't work.
Sent from my SGH-T999 using Tapatalk