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hey guys,
i recently rooted my galaxy s3 i747 and installed cm11 on it. the whole process was done automatically using one of those cm installers. however, i recently learned that cm11 is not stable yet. so i want to downgrade to 10.2 which is the most recent stable cm.
i did try that, using manual methods, such as flashing it via recovery, however a picture of a dead android with a red warning triangle popped up saying it couldn't be done.
my question is, why would this happen? i know official android doesn't allow downgrade, but rooted ones should allow installation of any custom rom no matter which verison, right?
another question, how do i downgrade to 10.2, or install any other stable custom rom? i am afraid that the phone might become bricked due to my inexperience, but i want stability in my phone.
also, if my phone is indeed hard bricked, would it be possible to get it fixed under $100?
P.S. i am quite new to xda, so sorry if i posted this in the wrong area.
Are you using the most up to date custom recovery for your phone? Are you wiping system, Dalvik, and cache before installting the new ROM?
audit13 said:
Are you using the most up to date custom recovery for your phone? Are you wiping system, Dalvik, and cache before installting the new ROM?
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used goo manager to install recovery, and wiped system, dalvik cache and cache. you see, i was following a video tutorial, and the custom recovery on that one was an older version. so, although i wiped them all, it was a bit different. you think that might be the problem?
user9560 said:
used goo manager to install recovery, and wiped system, dalvik cache and cache. you see, i was following a video tutorial, and the custom recovery on that one was an older version. so, although i wiped them all, it was a bit different. you think that might be the problem?
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Click to collapse
I would start over by flashing the tar version of Philz Touch via Odin 3.07 from here: http://goo.im/devs/philz_touch/CWM_Advanced_Edition/d2att.
Copy CM10.2 to your phone or external SD card, boot into recovery, wipe cache, Dalvik, data, and system. Then install CM10.2, boot into the OS, set things up, boot into recovery, and flash Gapps.
I prefer doing everything via recovery mode.
thanks! aah i'm a little scared though. do you think if i follow the instructions correctly, there'll be little chance of a hard brick? i know nothing's full proof tho.... what do you think? is it worth it? is 10.2 better than cm11 nightly as of yet?
You're using an AT&T s3 i747? What ROM was on the phone before you installed a custom ROM?
If it was any stock 4.3, don't touch the bootloader.
audit13 said:
You're using an AT&T s3 i747? What ROM was on the phone before you installed a custom ROM?
If it was any stock 4.3, don't touch the bootloader.
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Click to collapse
yup s3 i747 with bell. i think its the same as att. the phone came with 4.2 then i updated to 4.3 jelly bean.
also, isn't odin like a software on the computer? could you perhaps point to a tutorial? sorry ^_^' i'm not so familiar with android and there r so many tutorials out there, i wouldnt know which one i should follow in this case.
user9560 said:
yup s3 i747 with bell. i think its the same as att. the phone came with 4.2 then i updated to 4.3 jelly bean.
also, isn't odin like a software on the computer? could you perhaps point to a tutorial? sorry ^_^' i'm not so familiar with android and there r so many tutorials out there, i wouldnt know which one i should follow in this case.
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The model # for the Bell s3 is i747m. The AT&T version is an i747. Make note of the difference when posting and looking solutions.
Do you have any warranty left on your phone? If you do, installing the 4.3 update will install the 4.3 bootloader and Knox. Once you have upgraded to the 4.3 bootloader, any attempts to downgrade the bootloader will brick the phone. Any reason you updated to 4.3?
Since you have Knox on your phone, installing a custom recovery will trip the knox counter and void your warranty. If you have no warranty left, tripping the counter isn't a problem.
audit13 said:
The model # for the Bell s3 is i747m. The AT&T version is an i747. Make note of the difference when posting and looking solutions.
Do you have any warranty left on your phone? If you do, installing the 4.3 update will install the 4.3 bootloader and Knox. Once you have upgraded to the 4.3 bootloader, any attempts to downgrade the bootloader will brick the phone. Any reason you updated to 4.3?
Since you have Knox on your phone, installing a custom recovery will trip the knox counter and void your warranty. If you have no warranty left, tripping the counter isn't a problem.
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Click to collapse
hmm when i look at my about phone it just says SMASUNG-SGH-I747... so i'm not sure where i747m comes in... i assume there's no warranty for my phone anymore since it's been rooted already. i just updated to 4.3 because i assumed that a reputable company like samsung would give out a good and better performance update. after i updated however, the phone started going haywire. it became laggy and slow. not that noticable, but still bothered me. the main reason i ditched iphone was because of it's sluggy behavior. so i had nothing to do but root. cm11's great, but some features are unstable, like random reboots and stuff. so i wanted to try cm10.2 or miui v5. hmm. i'm still thinking about how to figure out odin..
user9560 said:
hmm when i look at my about phone it just says SMASUNG-SGH-I747... so i'm not sure where i747m comes in... i assume there's no warranty for my phone anymore since it's been rooted already. i just updated to 4.3 because i assumed that a reputable company like samsung would give out a good and better performance update. after i updated however, the phone started going haywire. it became laggy and slow. not that noticable, but still bothered me. the main reason i ditched iphone was because of it's sluggy behavior. so i had nothing to do but root. cm11's great, but some features are unstable, like random reboots and stuff. so i wanted to try cm10.2 or miui v5. hmm. i'm still thinking about how to figure out odin..
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Click to collapse
The Bell, Rogers, and Telus version of the s3 is sgh-i747m. The AT&T version is sgh-i747. Did you get the phone from one of the Canadian carriers?
If you're running a custom ROM, this may be the reason it just shows sgh-i747. Custom ROMs on XDA are designed for the d2att but are compatible with the Canadian version of the s3.
Updating to 4.3 would have loaded a 4.3 bootloader and Knox. Once your phone has the 4.3 bootloader, do not attempt to downgrade the bootloader as it will brick your phone.
Knox software can interfere when trying to root your device.
You updated to 4.3, then installed CM?
audit13 said:
The Bell, Rogers, and Telus version of the s3 is sgh-i747m. The AT&T version is sgh-i747. Did you get the phone from one of the Canadian carriers?
If you're running a custom ROM, this may be the reason it just shows sgh-i747. Custom ROMs on XDA are designed for the d2att but are compatible with the Canadian version of the s3.
Updating to 4.3 would have loaded a 4.3 bootloader and Knox. Once your phone has the 4.3 bootloader, do not attempt to downgrade the bootloader as it will brick your phone.
Knox software can interfere when trying to root your device.
You updated to 4.3, then installed CM?
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Click to collapse
ah i understand now. i got the phone from bell. thanks for clarifying that.
i installed cm after the update, unfortunately. but when i went into recovery mode, i did not see anything related to knox. does it show up on the phone or in recovery mode? as of this moment, i was not thinking about the bootloader. because we're just tyring to downgrade the os, right? or is it something like previous os would not run on an updated bootloader?
user9560 said:
ah i understand now. i got the phone from bell. thanks for clarifying that.
i installed cm after the update, unfortunately. but when i went into recovery mode, i did not see anything related to knox. does it show up on the phone or in recovery mode? as of this moment, i was not thinking about the bootloader. because we're just tyring to downgrade the os, right? or is it something like previous os would not run on an updated bootloader?
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Click to collapse
Go into download mode and look at the screen. What does it say? It will probably have the model #, warranty bit, and whether it is running custom or official software.
Are you running TWRP or CWM?
audit13 said:
Go into download mode and look at the screen. What does it say? It will probably have the model #, warranty bit, and whether it is running custom or official software.
Are you running TWRP or CWM?
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Click to collapse
ok sir, this is what it says:
-ODIN MODE
-PRODUCT NAME: SGH-I747M
-CUSTOM BINARY DOWNLOAD: Yes (2 counts)
-CURRENT BINARY: Custom
-SYSTEM STATUS: Official
-QUALCOMM SECUREBOOT: ENABLE
-Warranty Bit: 1
-BOOTLOADER RP SWERV: 1
This screen tells you that your phone is an i747m, you have knox installed, any warranty on your phone has been voided, and you're loaded 2 custom ROMs.
Since you have a custom recovery, you can wipe data, cache, Dalvik, and install cm10.2.
audit13 said:
This screen tells you that your phone is an i747m, you have knox installed, any warranty on your phone has been voided, and you're loaded 2 custom ROMs.
Since you have a custom recovery, you can wipe data, cache, Dalvik, and install cm10.2.
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Click to collapse
ok now that you mentioned cwm and twrp, i noticed my phone resembles cwm when i boot into recovery. the tutorial i followed was in what looked like twrp. but why would that happen? i followed his instructdions and updated the recovery the same way he did via goo manager. he is using twrp, i am using cwm. is that the problem?
user9560 said:
ok now that you mentioned cwm and twrp, i noticed my phone resembles cwm when i boot into recovery. the tutorial i followed was in what looked like twrp. but why would that happen? i followed his instructdions and updated the recovery the same way he did via goo manager. he is using twrp, i am using cwm. is that the problem?
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Click to collapse
As long as you have a custom recovery, you can try flashing cm10.2.
audit13 said:
As long as you have a custom recovery, you can try flashing cm10.2.
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Click to collapse
i did try it before. booted into recovery, tried to flash rom zip and gapps. but it failed to flash. are you suggesting i do it in DOWNLOAD MODE with the new tar file you have mentioned? would you be able to link me to a place which would give me instructions? i am quite new to this. thanks
user9560 said:
i did try it before. booted into recovery, tried to flash rom zip and gapps. but it failed to flash. are you suggesting i do it in DOWNLOAD MODE with the new tar file you have mentioned? would you be able to link me to a place which would give me instructions? i am quite new to this. thanks
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What error are you getting when you try to flash a ROM?
audit13 said:
What error are you getting when you try to flash a ROM?
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it gives me a dead android with a red warning triangle. the one that says rom cannot be flashed.
user9560 said:
it gives me a dead android with a red warning triangle. the one that says rom cannot be flashed.
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Click to collapse
Are there any RPM error messages? What custom recovery do you have on your phone? It should say at the very top.
I know there are a few threads regarding this issue but I can't seem to find a definitive answer.
I am currently running stock 4.3 jellybean (rooted). My phone hasn't received the 4.4 KitKat update yet, so I wanted to install CM11 in order to get KitKat on my s3. However, I heard CM11 can be buggy on the s3, so in case things go south, I want to be able to revert back to the stock 4.3 rom. Some people have said that you can easily flash the stock ROM via ODIN. However, others said that downgrading from 4.4.2 to 4.3 will hard brick the device since installing CM11 updates the boot loader. So downgrading to 4.3 stock with a 4.4.2 boot loader will cause a hard brick according to other threads I've seen. My question is, how can I downgrade from CM11 to stock 4.3 safely without bricking? Thanks in advance.
If you are sure you are using a Canadian version of the i747m, you can flash back to stock in Odin using a stock 4.3 ROM for the phone's original carrier (Bell, Rogers, Telus).
audit13 said:
If you are sure you are using a Canadian version of the i747m, you can flash back to stock in Odin using a stock 4.3 ROM for the phone's original carrier (Bell, Rogers, Telus).
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Click to collapse
Yes I got the phone from Rogers, it's most definitely i747M. But do I have to worry about any issues with the bootloader? I'm assuming installing CM11 will install the 4.4.2 bootloader, so if I choose to downgrade to the stock 4.3 rom, will it cause any issues seeing as I'm running a 4.3 rom with a 4.4.2 bootloader? I just want to make sure because I heard it can cause some serious problems if the bootloader is newer than the rom.
Mzrz said:
Yes I got the phone from Rogers, it's most definitely i747M. But do I have to worry about any issues with the bootloader? I'm assuming installing CM11 will install the 4.4.2 bootloader, so if I choose to downgrade to the stock 4.3 rom, will it cause any issues seeing as I'm running a 4.3 rom with a 4.4.2 bootloader? I just want to make sure because I heard it can cause some serious problems if the bootloader is newer than the rom.
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I have never come across a custom ROM that touches the bootloader. A compatible bootloader has to be loaded on the phone before you attempt to install the custom ROM. Supported bootloaders can be found in the ROM's updater script.
I assume your phone has no warranty since you rooted it on stock 4.3. Did you root it by installing a pre-rooted ROM?
You could copy a ROM to your external SD card, install Philz Touch via Odin, reboot directly to recovery, create a nandroid backup, wipe cache, Dalvik, data, and install your KK ROM.
audit13 said:
I have never come across a custom ROM that touches the bootloader. A compatible bootloader has to be loaded on the phone before you attempt to install the custom ROM. Supported bootloaders can be found in the ROM's updater script.
I assume your phone has no warranty since you rooted it on stock 4.3. Did you root it by installing a pre-rooted ROM?
You could copy a ROM to your external SD card, install Philz Touch via Odin, reboot directly to recovery, create a nandroid backup, wipe cache, Dalvik, data, and install your KK ROM.
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Click to collapse
Okay, I was just making sure because I know OTA updates can change the bootloader, so I just wanted to make sure the custom roms don't do that. As for the custom recovery, are you recommending Philz Touch over CWM and TWRP? Do you know which custom recovery is installed from the CM installer?
audit13 said:
I have never come across a custom ROM that touches the bootloader. A compatible bootloader has to be loaded on the phone before you attempt to install the custom ROM. Supported bootloaders can be found in the ROM's updater script.
I assume your phone has no warranty since you rooted it on stock 4.3. Did you root it by installing a pre-rooted ROM?
You could copy a ROM to your external SD card, install Philz Touch via Odin, reboot directly to recovery, create a nandroid backup, wipe cache, Dalvik, data, and install your KK ROM.
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Click to collapse
Oh and one more question, my phone was originally carrier locked to Rogers and unrooted on 4.3 jelly bean. I brought it in to a cell store for them to carrier unlock it for me, but they used a rooting method to unlock it (because SuperSU was installed on it when I brought it back). They didn't unlock it with a code, so I'm guessing they used something like Samsung Tool or z3x shell. If I install CM11, will I lose the unlock, considering it's more of a "soft unlock", or is the unlock permanent regardless of how many roms I flash? Thanks for your help!
Mzrz said:
Okay, I was just making sure because I know OTA updates can change the bootloader, so I just wanted to make sure the custom roms don't do that. As for the custom recovery, are you recommending Philz Touch over CWM and TWRP? Do you know which custom recovery is installed from the CM installer?
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Philz is based on the latest release of CWM and I prefer CWM over TWRP because I had problems flashing ROMs. Once I switched to Philz/CWM, no more problems.
Mzrz said:
Oh and one more question, my phone was originally carrier locked to Rogers and unrooted on 4.3 jelly bean. I brought it in to a cell store for them to carrier unlock it for me, but they used a rooting method to unlock it (because SuperSU was installed on it when I brought it back). They didn't unlock it with a code, so I'm guessing they used something like Samsung Tool or z3x shell. If I install CM11, will I lose the unlock, considering it's more of a "soft unlock", or is the unlock permanent regardless of how many roms I flash? Thanks for your help!
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The unlock should be permanent. I unlocked it using the free method when on 4.1.1 and no ROM has ever caused it to re-lock. Reflashing a completely stock ROM, including the bootloader, did not relock the phone.
Please remember that flashing and changing ROMs will always carry a risk of soft bricking or hard bricking your phone. Make sure you read all of the guides and be prepared for disaster.
Good read here: http://forum.xda-developers.com/showthread.php?t=2201860
It's been another few months and still the same problems with all ROMS i try, when the screen is off i lose connection to the mobile network, When i turn the screen back on it will connect and start buzzing and alerting me to every unread message and e-mail Which gets annoying very quickly let alone missing messages and calls.
This happens on CM 12, Pac man rom, GPE and others. Both with 4.4.4 and 5.0. CM 11 works fine for me without this issue.
I see people say they are using these roms without this issue so something is definitely wrong but I can figure out what.
I'm using an Unlocked T mobile s4 on the Wind network In canada
Model SGH-M919
Baseband M919UVUAMDL
You may need to update the baseband a bootloader in order for the phone to work properly with the latest ROMs.
http://www.sammobile.com/firmwares/database/SGH-M919/
audit13 said:
You may need to update the baseband a bootloader in order for the phone to work properly with the latest ROMs.
http://www.sammobile.com/firmwares/database/SGH-M919/
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Thanks for the reply, before i screw anything up there doesn't appear to be any explicit guides. I'm assuming i use this guide http://forum.xda-developers.com/showthread.php?t=2678774 with the OK3 Rom. beyond this is there anything i should know, like will i have to unlock and root my phone again, or anything like that?
The stock ROMs for the sgh-m919 are here: http://www.sammobile.com/firmwares/database/SGH-M919/
The simplest way to update to the latest bootloader and modem would be to flash the phone back to stock using the above-linked software.
Once you are on the latest stock ROM, flash the latest TWRP to the phone. Once TWRP has been installed, you can flash a custom ROM. Rooting first is not necessary if you intend to run a custom ROM.
audit13 said:
The stock ROMs for the sgh-m919 are here: http://www.sammobile.com/firmwares/database/SGH-M919/
The simplest way to update to the latest bootloader and modem would be to flash the phone back to stock using the above-linked software.
Once you are on the latest stock ROM, flash the latest TWRP to the phone. Once TWRP has been installed, you can flash a custom ROM. Rooting first is not necessary if you intend to run a custom ROM.
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Sorry for the late update but I got it working thank you.
The FOK3 and FOH3 didn't work for me, once installed it still showed the MDL version. Once i did the FNK2 it worked.
Is there a reason to upgrade to the FOH3 or FOK3 from the FNK2 versions provided i can get them to work?
I always recommend running the latest bootloader and rom but, if the bootloader and modem work without issue, you can hold off.
Hi, I'm currently using this method to flash roms, and I've flashed OctOS M a total of 3 times using this method, but for some reason, after a bit of time the ROM gets really buggy.
Is there a better way of flashing this ROM, or is it the ROM itself causing these issues.
Thanks,
Which phone do you have? For the i747 and i747m can be flashed with TWRP from Odin. The custom ROM and Gapps and then flashed from TWRP.
audit13 said:
Which phone do you have? For the i747 and i747m can be flashed with TWRP from Odin. The custom ROM and Gapps and then flashed from TWRP.
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Click to collapse
Currently have an i747m
its just that for some reason, at first OctOS M works perfect, and then starts to have tons of issues overtime, which other people dont seem to have.
I remember somebody telling me to wipe data and cache about 3 times before installing the ROM in TWRP, even tho i usually just do it once. Is that the proper way to do it?
Thanks,
The phone is running the latest KK bootloader and modem/baseband?
Did you use TWRP to wipe system as well before installing the custom ROM?
audit13 said:
The phone is running the latest KK bootloader and modem/baseband?
Did you use TWRP to wipe system as well before installing the custom ROM?
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Click to collapse
Not sure how i can check if im running the latest bootloader or modem/baseband.
Yea, I had also wiped system, and delvik cache.
You can install the Samsung Phone Info App from the play store which will tell you the bootloader and modem/baseband version in the phone. I think FOB3 is the latest.
audit13 said:
You can install the Samsung Phone Info App from the play store which will tell you the bootloader and modem/baseband version in the phone. I think FOB3 is the latest.
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Click to collapse
My bootloader and modem/baseband end in FOB3.
Okay, then that's not causing the problem. It may be a bug that's unique to your particular phone. The only way to tell for sure may be to install a different ROM to see what happens.
New Phone, Who dis?
Hello, Huskied here, And I am requesting help installing this Nougat safely on this Galaxy S4 on T-Mobile.
Keep in mind, This is still on 4.4.4 KitKat, Haven't installed an update just yet, unrooted, and it's a SGH-M919 type.
Build Number KTU84P .M919UVUFNH7
any help would be appreciated.
Here's what I would do:
Flash the latest stock ROM from Sammobile.com with Odin;
Flash twrp for the m919;
Save the rom and appropriate gapps to the phone's internal storage or sdcard; and
Flash the custom ROM, flash gapps, reboot.
audit13 said:
Here's what I would do:
Flash the latest stock ROM from Sammobile.com with Odin;
Flash twrp for the m919;
Save the rom and appropriate gapps to the phone's internal storage or sdcard; and
Flash the custom ROM, flash gapps, reboot.
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Click to collapse
Thank you. And one more thing, Some ROMs require LP Bootloader. Where can I get that?
Flashing the latest stock ROM will give you the latest bootloader.
audit13 said:
Flashing the latest stock ROM will give you the latest bootloader.
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Tried today, Couldn't find any stock ROM for the jfltetmo. Found a bootloader that's supposed to boot the ROM I would like, Failed and could only boot into recovery until I restored 4.4.4.
Any thoughts?
If the phone baseband is running these latest fok3 ROM, that is the newest bootloader for the phone as indicated here: https://www.sammobile.com/firmwares/galaxy-s4/SGH-M919/TMB/
Btw, that nougat in the original is not for the m919 so don't flash it as it may hard brick phone.
audit13 said:
If the phone baseband is running these latest fok3 ROM, that is the newest bootloader for the phone as indicated here: https://www.sammobile.com/firmwares/galaxy-s4/SGH-M919/TMB/
Btw, that nougat in the original is not for the m919 so don't flash it as it may hard brick phone.
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Click to collapse
Rip, Thanks for the tip! and also the warning!