Hello all,
I have a problem as I have heard it is currently impossible to unlock the bootloader on my phone which is a Galaxy S4 SCH i545. OS 4.4.2 Kernel version 3.4.0 and build NC5. I would like to be running CyanogenMod.
Also, It is currently rooted via the new Towelroot hack.
I am wondering if a possible option would be to revert to a previous android build where it would be possible yet to unlock the bootoader.
Has anyone done this? If so, how far back should I go and what is the best way to do this? Thank you for your help.
DavidHXC91 said:
Hello all,
I have a problem as I have heard it is currently impossible to unlock the bootloader on my phone which is a Galaxy S4 SCH i545. OS 4.4.2 Kernel version 3.4.0 and build NC5. I would like to be running CyanogenMod.
Also, It is currently rooted via the new Towelroot hack.
I am wondering if a possible option would be to revert to a previous android build where it would be possible yet to unlock the bootoader.
Has anyone done this? If so, how far back should I go and what is the best way to do this? Thank you for your help.
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Click to collapse
No can do. Unfortunately there is no way to do what you are wanting. Since 4.3 there's been no way to downgrade to anything useful and no way to unlock the bootloader.
es0tericcha0s said:
No can do. Unfortunately there is no way to do what you are wanting. Since 4.3 there's been no way to downgrade to anything useful and no way to unlock the bootloader.
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Well that is extremely discouraging to hear. I will probably have to buy a different phone eventually. Do you happen to know if there's a safestrap OS for it that's worth doing?
DavidHXC91 said:
Well that is extremely discouraging to hear. I will probably have to buy a different phone eventually. Do you happen to know if there's a safestrap OS for it that's worth doing?
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Click to collapse
Hyperdrive is my fav TW rom for your phone.
Related
So my girlfriend has wants her S4 rooted. I have the S3 and its quite different as far as rooting goes. I am also on sprint whereas she is on verizon (although thats not such a big deal).
Anyways, what I would like to have clarified for me is this: She is currently unrooted with stock MK2. From what I have read you can only root and install compatible roms with safestrap. The main thing she wants is KitKat and possibly CM. Is there any way for her to get either of these. Also, would it be possible to revert back to stock and flash KitKat with the OTA from verizon when it is released?
Thanks for any help.
BioBot said:
So my girlfriend has wants her S4 rooted. I have the S3 and its quite different as far as rooting goes. I am also on sprint whereas she is on verizon (although thats not such a big deal).
Anyways, what I would like to have clarified for me is this: She is currently unrooted with stock MK2. From what I have read you can only root and install compatible roms with safestrap. The main thing she wants is KitKat and possibly CM. Is there any way for her to get either of these. Also, would it be possible to revert back to stock and flash KitKat with the OTA from verizon when it is released?
Thanks for any help.
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Click to collapse
There's no way for her to get KitKat or CM or anything AOSP. Hopefully the next OTA will have an exploit, but there hasn't been a cracked bootloader since the first version of firmware on the initial releases. Realistically, never going to happen.
My boyfriend's AT&T Galaxy Alpha just auto-updated to lollipop.. nothing seem to work correctly, even with a factory reset. Everything was working perfectly fine on Kit Kat. I was wondering is it possible to downgrade back to Kit Kat with this phone?
I have limited experience with Android. I know it is possible to do this for devices that is rooted (e.g my Galaxy S5 or my Nexus 7). But I don't quite know where to start for the SM-850A, where the device is not rooted.
pennywaltz said:
My boyfriend's AT&T Galaxy Alpha just auto-updated to lollipop.. nothing seem to work correctly, even with a factory reset. Everything was working perfectly fine on Kit Kat. I was wondering is it possible to downgrade back to Kit Kat with this phone?
I have limited experience with Android. I know it is possible to do this for devices that is rooted (e.g my Galaxy S5 or my Nexus 7). But I don't quite know where to start for the SM-850A, where the device is not rooted.
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Hello,
Downgrading is not shown as an option, neither is someone working on a root exploit for either of the versions (KitKat and Lollipop in this case) so I guess you're stuck with the Lollipop version. Although its not that bad you could wait for someone to release a rooting method so it could get easier for you to downgrade but until then you're stuck :/ Sad to say there arent much choices with that model :/
Best regards,
James
Daentrod said:
Hello,
Downgrading is not shown as an option, neither is someone working on a root exploit for either of the versions (KitKat and Lollipop in this case) so I guess you're stuck with the Lollipop version. Although its not that bad you could wait for someone to release a rooting method so it could get easier for you to downgrade but until then you're stuck :/ Sad to say there arent much choices with that model :/
Best regards,
James
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Thanks James! yeah I know this model doesn't have a root and I don't think it will ever be an option (never say never but meh!)... But curious was it possible to downgrade without a root. Thanks for answering my question I like the phone, I did buy it for myself (and the bf too).. but I returned it after seeing there was no root... but the bf kept his...now he is hating it!
Did you tried to download your stock KK ROM and flash it with odin??
Mr.Nice.ba said:
Did you tried to download your stock KK ROM and flash it with odin??
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Hello,
The issue is that you cannot get the KitKat firmware from anywhere, nobody has ever tried to upload it at all, otherwise I would of recommended it for sure.
Best regards,
James
you should try to download the stock KK from http://www.sammobile.com/firmwares/database/SM-G850F/
damnostix said:
you should try to download the stock KK from http://www.sammobile.com/firmwares/database/SM-G850F/
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Hello,
As she've stated, her phone model is SM-G850A, AT&T model, not international one.
Best regards,
James
Daentrod said:
Hello,
As she've stated, her phone model is SM-G850A, AT&T model, not international one.
Best regards,
James
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Hello, I'm downloading the kit Kat firmware for 850m, do you think it could work if I do the downgrade? I don't like this lollipop, please help
dont even try it ,you vill brick your phone 850M is Exynos CPU your nearest device is 850S Snapdragon CPU
but modem & kernal will not be funcsing with your phone??!!
but I dont recommend to do this
I am a beginner to Android, and I am wondering if someone can introduce me to how to make my Galaxy S4 into a Google Play Edition with Lollipop. Can someone walk me through this?
Please help!
jashtiani said:
I am a beginner to Android, and I am wondering if someone can introduce me to how to make my Galaxy S4 into a Google Play Edition with Lollipop. Can someone walk me through this?
Please help!
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Click to collapse
Likely this will not be possible for you.
Samsung and Verizon have kept the GS4 Bootloader locked and unless you have the "MDK" version of the bootloader there are no options to change your ROM to "Google Play Edition with Lollipop". Furthermore, depending on your current bootloader, you may not even be able to root your phone.
Go to the Baseband section under settings/more/about device and look for the baseband version. The last 3 letters/numbers are the ones you will see referred to in these posts. Up to NK4 was KitKat, OC1 is Lollipop.
If your last 3 are MDK you may be able to use an exploit called Loki which will allow you to root and change roms - (search MDK and Loki on these forums). Unfortunately if your last 3 are OC1 then you are on Lollipop and out of luck for root/custom roms at the moment.
Once you find those letters/numbers you will know your options. For Kitkat versions you can root with Towelroot and install the Safestrap app/recovery and use that to flash custom Kitkat Touchwiz Roms only. There are a few methods for upgrading to Lollipop from NK4 and retaining root but you must root the phone first before upgrading.
With very few exceptions, once you upgrade your bootloader/baseband version you cannot downgrade, so if you are already on OC1, the only option is to wait for a new root exploit to be found.
Hope this helps a little.
Try looking up "how to flash roms on galaxy s4" and I think there is a guide on xda
Sent from my GT-i9505(rooted) Android 4.4.2
Hey all got a note 2 on Verizon and I wanted to know if there is any other way of rootong this phone besides ghettoroot its on 4.4.2 or any way at all to downgrade to 4.1.2 please any help would be appreciated
You are stuck with KitKat and ghettoroot, I wish I would have read up, before I went from 4.1.2 to 4.3.
rbn2014 said:
Hey all got a note 2 on Verizon and I wanted to know if there is any other way of rootong this phone besides ghettoroot its on 4.4.2 or any way at all to downgrade to 4.1.2 please any help would be appreciated
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Click to collapse
Get use king root!
Download: HERE
What's wrong with ghettoroot? It works. Just rerooted stock 4.4.2 after going back from still brokem CM12.1. Trick is to temporarily disable Windows realtime virus protection and root before connecting to internet and installing Samsung security policy updates.
I have an S4 (SCH-i545) that was upgraded to Lollipop 5.0.1 (VRSGPL1). I'd like to upgrade it to a plain vanilla android, but from what I've read, it sounds like the PL1 bootloader will prevent me from changing the OS.
I was thinking that I might be able to do a complete wipe and restore the phone back to factory (VRAUAMDK) by flashing a stock firmware such as SCH-I545_MDK_562219_Stock_Restore.tar.md5 with Odin. My thought is that would also replace PL1 with the old MDK bootloader.
I can't come up with a clear idea whether that will work or not based on wheat I've read here and elsewhere, so I was hoping that there someone here who has a better understanding of the system could share their thoughts. Will this work, or will it brick my phone?
DingoKidneys said:
I have an S4 (SCH-i545) that was upgraded to Lollipop 5.0.1 (VRSGPL1). I'd like to upgrade it to a plain vanilla android, but from what I've read, it sounds like the PL1 bootloader will prevent me from changing the OS.
I was thinking that I might be able to do a complete wipe and restore the phone back to factory (VRAUAMDK) by flashing a stock firmware such as SCH-I545_MDK_562219_Stock_Restore.tar.md5 with Odin. My thought is that would also replace PL1 with the old MDK bootloader.
I can't come up with a clear idea whether that will work or not based on wheat I've read here and elsewhere, so I was hoping that there someone here who has a better understanding of the system could share their thoughts. Will this work, or will it brick my phone?
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I too would like to know if this is viable. I doubt it, seeing as I can't find any threads outlining this solution. But an explanation as to why this won't work would be greatly appreciated!
ItsBeenFun2017 said:
I too would like to know if this is viable. I doubt it, seeing as I can't find any threads outlining this solution. But an explanation as to why this won't work would be greatly appreciated!
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Click to collapse
DingoKidneys said:
I have an S4 (SCH-i545) that was upgraded to Lollipop 5.0.1 (VRSGPL1). I'd like to upgrade it to a plain vanilla android, but from what I've read, it sounds like the PL1 bootloader will prevent me from changing the OS.
I was thinking that I might be able to do a complete wipe and restore the phone back to factory (VRAUAMDK) by flashing a stock firmware such as SCH-I545_MDK_562219_Stock_Restore.tar.md5 with Odin. My thought is that would also replace PL1 with the old MDK bootloader.
I can't come up with a clear idea whether that will work or not based on wheat I've read here and elsewhere, so I was hoping that there someone here who has a better understanding of the system could share their thoughts. Will this work, or will it brick my phone?
Click to expand...
Click to collapse
You can not down grade to bootloader. You might be able to safestrap it but im not sure. I believe all you need is root, safestrap, and a compatible rom.