I just bought an AT&T S3 to replace a carrier unlocked T-Mobile S3. The new device is already rooted with CM11 installed and it's baseband is MG2. I'll need to revert back to stock temporarily to do a carrier unlock. Here are my questions:
What is a safe TW (preferrably a pre-rooted TW) I can flash to perform the carrier unlock?
After I'm carrier unlocked, what is the latest modem I can install? I want to do all of this without enabling knox.
Thanks to all in advance,
Niphoet
Flashing back to stock means everything will be wiped on the phone, including recovery and data.
You can use Odin to flash the stock ATT 4.1.1 firmware from sammobile.com. Before doing so, boot into download mode and make sure you there is nothing about warranty bit on the screen.
niphoet said:
After I'm carrier unlocked, what is the latest modem I can install? I want to do all of this without enabling knox.
Thanks to all in advance,
Niphoet
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There ae several important things to know about upgrading your modem and firmware.
1) KNOX comes with all of the firmware since the officlal 4.3 release, MJB. The leaked version of the 4.3 release (MJ2) does not have KNOX.
2) Once on the MJB and later firmware you can no longer downgrade, you will most probably brick your phone.
3) It is possible to run the MJ2 firmware/bootloader and MJB modem combination on 4.3 and 4.4.x ROMs.
4) The MJ2 and MJB bootloader will most likely require a custom kernel if you use it on 4.4.x ROMs. Something like the kToonez kernel or iBuddler kernel found in Likewise.
5) Once you get past the 4.3 firmware do not mix firmware and modem release versions, again bricks are probably. If you have NE4 firmare, use the NE4 modem. The same goes for for if you have the NE4 modem, use the NE4 bootloader. This holds true for NH2, NJ1, and NKx.
6) The only time I have seen that you absolutely must be on NE4 or newer is for the Lollipop ROMs.
Related
I've got a Galaxy S3 I747 it is currently running 4.1.1, I747UCDLK3 Baseband. I'm not exactly a noob when it comes to flashing and rooting, I know my way around CWM and Odin pretty well. But I have a few questions on this 4.3 OTA. (I am a forum noob)
-Will I still be able to root? (I heard CF works for it)
-Can I install CWM? (Is the Bootloader locked??)
-Will I be be able to I flash other roms than the 4.3 TW like CM11Snapshot? (Is the bootloader locked?)
-What the h*ll is knox and why should I be worried?
-What is with the boot loader downgrading thing? (Have to do with locked bootloader??)
I AM NOT AT ALL WORRIED ABOUT A FLASH COUNTER OR VOIDING A WARRANTY I AM NOT ON A CONTRACT . I JUST DO NO WANT TO HARD BRICK MY PHONE.
If you take the OTA 4.3 update, it will install Knox and the 4.3 bootloader.
The 4.3 bootloader cannot be downgraded and attempts to do so will probably brick the phone.
You can root the stock 4.3 ROM with auto root but Knox may interfere with the process of cause issues after the fact.
You can still install CWM. I rrefer Philz Touch which is CWM-based.over TWRP.
So can I still flash roms?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Yes, you can flash ROMs. Is your phone unlocked? Since you're on 4.1.1 stock, you can unlock it for free.
Personally, I avoided the 4.3 update because it installs knox and the 4.3 bootloader which can cause problems when using Odin to get back to stock.
I have a Canadian version of the s3 and I'm able to run KK ROMs with a stock 4.1.2 bootloader.
audit13 said:
Yes, you can flash ROMs. Is your phone unlocked? Since you're on 4.1.1 stock, you can unlock it for free.
Personally, I avoided the 4.3 update because it installs knox and the 4.3 bootloader which can cause problems when using Odin to get back to stock.
I have a Canadian version of the s3 and I'm able to run KK ROMs with a stock 4.1.2 bootloader.
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Unlocked as in Bootloader? Yeah I've been able to flash roms via CWM and Odin on 4.1.1 and as in Carrier unlocked? Yes I use Straight Talk on this ATT S3
If I got the 4.3OTA I wouldn't need Odin to go back stock if I flashed a ROM would I? I could just make a back up via CWM then restore later if I wanted right rather than using ODIN?
See I can't use KK roms because I have the 4.1.1 BL so is there a way I can upgrade my boot loader to the 4.1.2 version??
Would I lose my carrier unlock if I upgraded to 4.3 or if I upgrade my bootloader??
I suggest downloading a ROM you want to try, then unzip the ROM and look at the updater script to see which bootloaders are supported. The updater-script file is located in \META-INF\com\google\android\updater-script. You can use a text editor to open the updater-script file.
The first few lines will list the bootloaders that are supported. I run Validus which is a KK ROM using a stock 4.1.2 i747m bootloader.
Do you know about this > "If I got the 4.3OTA I wouldn't need Odin to go back stock if I flashed a ROM would I? I could just make a back up via CWM then restore later if I wanted right rather than using ODIN?"
Also couldn't I just upgrade my Bootloader and Modem from here?
http://forum.xda-developers.com/showthread.php?t=2321310
http://forum.xda-developers.com/showthread.php?t=1831898
I feel like if I upgrade my boot loader then I won't have to worry about restrictions.
Would I lose my carrier unlock if I upgraded to 4.3 or if I upgrade just my bootloader??
I ended up flashing the MG2 Modem and Bootloader, I'm good now, also if I want 4.3 I saw loserskater has a leak version that will be good and wont not let me downgrade my bootloader.
re 7100 bootloaders
(please forgive my lack of knowledge)
i am on phoenix 17 rom currently, bootloader MJ5 (no knox as far as i understand. later bootloaders ie MK4 are knoxed IIRC)
am I understanding correctly that custom roms do not install bootloaders (ie 4.3 roms or 4.4 based on stock or leaked stock)?
and that is why it is possible to still revert backwards if one has a non knoxed BL?
do stock roms install bootloaders (via kies or odin)?
so if for some reason i installed a stock 4.3 i would then be stuck with a knoxed bootloader?
thanks for the info
entdoc said:
am I understanding correctly that custom roms do not install bootloaders (ie 4.3 roms or 4.4 based on stock or leaked stock)?
and that is why it is possible to still revert backwards if one has a non knoxed BL?
do stock roms install bootloaders (via kies or odin)?
so if for some reason i installed a stock 4.3 i would then be stuck with a knoxed bootloader?
thanks for the info
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-Custom Roms does NOT include bootloaders(as far as I know). I'm still in MJ5 BL even after installing DN3 4 Kitkat.
-Yup, i believe you can still revert back if you want to, as long as the bootloader does NOT have knox.
-It depends with what version you will install. Be informed by the "bootloader version" of the 4.3 stock rom that you will install(visible in sammobile). As long as the included bootloader is lower than MJ5(and NOT MK4 onwards) everything will be fine, I hope.
Hope I help. ^.^
erljayp said:
-Custom Roms does NOT include bootloaders(as far as I know). I'm still in MJ5 BL even after installing DN3 4 Kitkat.
-Yup, i believe you can still revert back if you want to, as long as the bootloader does NOT have knox.
-It depends with what version you will install. Be informed by the "bootloader version" of the 4.3 stock rom that you will install(visible in sammobile). As long as the included bootloader is lower than MJ5(and NOT MK4 onwards) everything will be fine, I hope.
Hope I help. ^.^
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where is bootloader version listed in sammobile details i see PDA CSC MODEM
also are any stock sammy roms available without bootloader (new ones)
if not is there a way to install a stock rom without the newer bootloader (can the necessary files EXCEPT the bootloader be extracted out of the .tar files and somehow be installed
thanks
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.
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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.
I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!
scripte said:
I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!
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first if wanted , i would get the free unlock sim code (am pretty sure is available on 4.1.1).
all i have ever read says to do the incremental updates (safest).; which i believe you can do OTA ; or flash thru recovery.
yes , you will most surely brick your phone if you try to downgrade bootloader from 4.4.2.
AND you want to keep bootloader and baseband at the same version. upgrade one then upgrade the other.
if your already on 4.1.1 , then yes flash away the stock 4.1.1 rom ; if youre talking about after you upgrade to 4.4.2 then the 4.1.1 may not flash unless you edit the updater script (think thats what its called , been awhile).
good luck !
"all i can really do , is stay out of my own way and let the will of heaven be done"
scripte said:
I'm using SlimKat 4.4.4, yet my phone's baseband version is 4.1.1 (I747UCDLK3). I'm looking to upgrade my baseband version to 4.4.2 due to some issues.
Can I upgrade straight from 4.1.1 to 4.4.2?
Or do I need to upgrade to 4.1.2 -> 4.3 -> 4.4.2? If this is the case, I have one concern. There are many footnotes saying if you downgrade from 4.4.2 to a lower version, you will brick your phone. These footnotes don't specifically say whether they're talking about OS version or baseband version. Is it safe for me to upgrade to 4.1.2 -> 4.3 -> 4.4.2 with a 4.4.2 ROM? Is it safe for me to flash a 4.1.1 stock ROM?
Any help appreciated. Thanks!
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This is an I747, right? I think the I747M had LK3 firmware too. If you happen to be on an I747M don't flash any of the I747 specific stuff below, or you'll probably brick your phone.
Since you're still on the old firmware it might be a good idea to carrier unlock your phone if you haven't already done it. You'll lose that ability if you update.
To update to 4.4.2 firmware you can go two ways. You can Odin back to unrooted stock and you should start receiving OTA updates. They will be incremental and they'll come about 24 hours apart, or you can set your system time ahead a day to cheat that. Eventually you'll get up to the 4.4.2 firmware. NE4 is 4.4.2, but NJ1 is the most recent. This is probably the safest way, but it will be somewhat slower. Those OTA's are full firmware packages so they're big downloads.
Or you can flash bootloader/modem only upgrades in custom recovery. Enewman17 has posted everything you need to get an I747 up to date to XDA. I flashed all these while running the Slimkat stable 9 ROM to get my I747 from LK3 up to NJ1. This has to be done incrementally and you have to boot successfully into your ROM in between each firmware flash. You can't jump from the 4.1.1 bootloader to the 4.4.2 bootloader. First flash the MJB firmware update linked to this thread then reboot into your ROM. Next flash the NE4 firmware zip also linked to that thread and then reboot into your ROM. You're on 4.4.2 firmware at this point, but if you want to be on the newest bootloader and modem then flash the NJ1 zip attached to this thread. If you go this route be sure you read enewman's posts very carefully and understand exactly what you're doing because fiddling with the bootloader and modem is the #1 way to hard brick this phone.
For the most part you can flash any ROM you want no matter what firmware you're on as long as it is intended for I747. You might find that your wifi won't work or your modem doesn't work or maybe it just bootloops if you get on a ROM that wasn't intended for the bootloader/modem currently on your phone, but you can still boot up into recovery and restore a backup or flash another ROM and get out of that. What you have to be very, very careful with is the bootloaders since Knox was introduced, that's MJB, NE4, and NJ1. Those bootloaders cannot ever be downgraded; don't try it. You'll hard brick and it is pretty hard to recover from. Its also for the best to keep your bootloader and modem matched on this newer firmware; the OTA method or the zips linked to the threads above will do that. Custom ROMs that are AOSP/CM based won't ever mess with your bootloader and modem. They're just a system image and a kernel. What you have to be really careful with is Odin, those are usually full firmware packages. AT&T hasn't allowed a stock image beyond 4.1.1 to be released for the I747, so once you're on the newer bootloaders there is no more option to Odin back to stock.
Good luck.
i have rooted and unlocked galaxy s3(i don't know if it is t999 or i747)the imei and boatloader are for t999 and the android build is i747mvldlk4 4.1.1 official rom and i want to flash new rom but i don't know what i have to flash (t999 roms or i747)please help me....
What does it day in download mode? What about the baseband/modem version?
Best way to know for sure is to install terminal emulator and enter this:
getprop ro.bootloader
You may simply have a T999 running on an I747 based rom. The two are very compatible when it comes to custom roms.
Since it sounds like you are on pretty old firmware, you will probably need to fully update it before flashing a newer rom. Just remember to only flash firmware for your model device. So if it's a T999 do not flash I747 firmware. Once updated you can then flash custom roms from either device.
(Also check the sticker under the battery to see what model it says)
baseband:t999uvdmd5 and modem board is msm8260a
What about the bootloader?
boatloader:t999uvdmd5
And just for good measure, check the sticker under the battery.
You are currently running on T999 base firmware with an I747 based rom, so you can be pretty certain you've got a T999 model.
You'll want to flash one of the two latest firmwares for the T999. (NC2 or OH1 if I'm remembering correctly) (note that some roms may not flash on the newest OH1 firmware if they have been updated recently, so you may want to go with NC2 to make things a little easier for now.)
After flashing your firmware, flash a custom recovery and then from the recovery flash your choice of rom.
Hope that helps and good luck!
thanks so much for help....but i want to ask about the files which i need to download when i flash nc2 firmware please(do i need to download any files for modem and kernel or this files are downloaded automatially with the firmware file??
When you are dealing with firmware, it includes everything, unless otherwise stated. Download and unzip the firmware package. Then flash the .tar.md5 file with Odin. Back up data first of course, just in case.
Doing this will give you a fully updated, stock, unrooted device. Reroot using Towel root, or flash recovery then a rom if you choose.
If you haven't already, I suggest reading the first few posts of my firmware thread (sticky in dev section). There's already a lot explained there.
does flashing t999uvuenc2 relock my mobile network..and if that will happens what can i do to unlock without code
Once the phone has been unlocked via code or the free method, the phone should remain unlocked after flashing ROMs.
Yup, the unlock is permanent. You can safely flash firmware, roms, etc.
ihave flashed cm12.1 d2tmo on my t999.but the features of camera like full HD video recording and face detecting were lost..can I restore them on this rom