[Q] Downgrade to Jellybean with Root - Xperia Z1 Compact Q&A, Help & Troubleshooting

Hello guys!
When I got my phone I immediately updated to Kitkat. I just like all my devices and apps updated to the newest, no matter how good or bad the new update is After I read that the battery life of Jellybean is incredibly better than the one from kitkat I decided that a downgrade would be a good thing.
I know that this question was already asked by rubez but I don't believe it is as easy as just flashing the jellybean ftf through flashtool. In some other threads people wrote that the phone can easily brake if you don't check the right options in flashtool. I'm very confused over all the different opinions the people had. Furtheron I want to stay rooted when downgrading, so this makes my dilemma more difficult.
So can (preferably) an expert tell me how to do downgrade to jellybean without loosing root?
Can I use the instructions from this thread although it's seems only to be for UPDATES?
http://forum.xda-developers.com/showthread.php?t=2688933
Btw, what exactly do I lose if I downgrade to Jellybean?
Thanks in advance!

Yes, you can.

Related

[Q] Temproot via Visionary+ on 2.3.3 (the new OTA update)

Been trying to temp root a few installed HTC desire HD with the new OTA 2.3.3 update but during the temp root process the icon goes yellow then it just sits on a black screen (with just the task bar up on top showing) for 20+ mins. and root does not happen.
I tried this while connected via usb (with the app installed visionary+ v14) with usb developer mode on or what ever it's called .. even tried re-starting and re-trying to no avail.. did they "patch" it in the latest update?
*edit fixed typo from 2.2.3 to 2.3.3 =P
You need to downgrade first...
I don't know if this method is still working with Gingerbread, but it was with Froyo and the Visionary symptoms were the same...
Try following this : http://forum.xda-developers.com/showthread.php?t=905003
nicoboum said:
You need to downgrade first...
I don't know if this method is still working with Gingerbread, but it was with Froyo and the Visionary symptoms were the same...
Try following this : http://forum.xda-developers.com/showthread.php?t=905003
Click to expand...
Click to collapse
(ty for your reply)
Ugg, ya I figured if I downgraded I could.. but I would really like to keep this OTA update few things I liked about it and as the phone is pretty much new I want to keep it as close to stock as possible... no one heard of any new exploits/updates that could allow temp root on the new OTA yet?
neijek said:
(ty for your reply)
Ugg, ya I figured if I downgraded I could.. but I would really like to keep this OTA update few things I liked about it and as the phone is pretty much new I want to keep it as close to stock as possible... no one heard of any new exploits/updates that could allow temp root on the new OTA yet?
Click to expand...
Click to collapse
If you look in the development section you will find several ROM's that are very close to stock such as LeeDroid and there's even a one GB ROM that is has been rooted and pretty much nothing added.
There's no reason for you not to downgrade as you can upgrade again with a near as damn it customised GB ROM.
Revolution HD is great
I never tried any other rom (yes I'm an Android noob !), but I don't feel like it, i'm happy with Revolution.
It's exactly like stock, only smoother with better battery life and root.
I hesitated a long time before I installed a custom ROM on my DHD, waiting was a waste of time. Custom ROM are WAY better (in my opinion). Just remember to reade a lot of topics before, in order to know where you're going, what kind of problems you could face, and how to solve them. There's a lot of stuff and it all looks hard to get at first, but in the end it's not that hard.
Good luck, have fun
(I apologize for any english mistakes I could have made)
neijek said:
(ty for your reply)
Ugg, ya I figured if I downgraded I could.. but I would really like to keep this OTA update few things I liked about it and as the phone is pretty much new I want to keep it as close to stock as possible... no one heard of any new exploits/updates that could allow temp root on the new OTA yet?
Click to expand...
Click to collapse
If you want your things backed up use Mybackup from the market. Also once you go down the rooting lane eventually you will install a custom ROM which is way better than stock. Try it for yourself and see the difference..
neijek said:
Ugg, ya I figured if I downgraded I could.. but I would really like to keep this OTA update few things I liked about it and as the phone is pretty much new I want to keep it as close to stock as possible... no one heard of any new exploits/updates that could allow temp root on the new OTA yet?
Click to expand...
Click to collapse
right now to get root for 2.3.3, u need to be downgrade first. anyway, in the dev corner, they have 2.3.3 stock but rooted.
http://forum.xda-developers.com/showthread.php?t=1059563
that is for 2.3.3 but your thread title mention 2.2.3, so don't know its a typo or u still prefer running on Froyo
Current ROM
Install a current ROM
neijek said:
(ty for your reply)
Ugg, ya I figured if I downgraded I could.. but I would really like to keep this OTA update few things I liked about it and as the phone is pretty much new I want to keep it as close to stock as possible... no one heard of any new exploits/updates that could allow temp root on the new OTA yet?
Click to expand...
Click to collapse
before updating to the gingerbread u first have to do radio s-off. other wise u r unable to get root on it. i have installed leaked version for my phn. i also didnt know that, struggle hard to find and solve problem to dwngrade my phn. did it successfully, now i m running my phn with gingerbread fully root with gingearbreak 1.20 version.
thanks for all these amazing and quick replies ... I used to own a htc polaris and i always used custom roms.. my main issue is this, this is a company phone (it's mine.. but if there are ever issues with it i have a full warranty (even if i break it). Thus i wanted to achieve a temproot, just to freeze bloatware but not leave any "permanent" marks on the phone which if sent in for warranty would void it.
Eventually i will toss custom roms on it for sure, but since it's only 2 weeks out of the box i'd rather save it like this, at least for the first year.. if only there was a easy way to just freeze all that "crap" and not mod it with s-off or what not then i'd be so happy..
Unless s-off and such can be reverted and i can then work my way back .. but the problem is.. if i break it, and can't then "re-eable" s-on and so on and they see it they will not pay for the "fix" they are assses about it here in italy..
one of the main reasons i switched was for SIP calling (got a new data plan) .. if i go ahead with s-off / custom rom and all.. can I revert back in case i ever need to send it in for repair or .. does it leave traces?
I had the very same issue on my Desire HD 2.3

Question about rooting LG G2 (Sprint) and OTA Updates.

Good afternoon guys,
I have a few set of questions and I will be glad if someone is able to kindly help me out. Please keep in mind that I am not an android expert as far as rooting, custom roms, etc... So I ask for patience from you guys!
Now... into the questions. I got my LG G2 2 weeks ago from Sprint. Great solid phone with killer specs. I previously had a Galaxy Epic 4G Touch. I was looking into rooting my LG G2 phone. However, somewhere in an article online, I read that, if I were to root my LG, I would no longer receive OTA software updates... Like an updated android version for example.. Is that true? I dont care about loosing root after updating. I just dont want to root my phone, receive an OTA update and then mess up my phone.. So thats my first question.
Next... I've done quite a few research online on how to root the G2 from sprint. What i am currently having issues with is finding the drivers. I know I must install them prior to attempting anything else. I read that I could use the Tmobile version drivers even though I am on sprint. But no luck finding those either. Could someone provide me with a link to download the drivers? Thanks! (Windows 8)
And last... I've seen many methods on rooting this device, that at the end, was confused on which one to use. Soo.. could someone share a link of a working method to root the LG G2 from Sprint (Android 4.4.2)
Thank you guys and I will be very grateful for any help. :good:
Any change of the android operating system with ota can fail. They are looking it seems note for any excuse to break the phone if you do anything. Best idea is to make sure you can unroot, then take ota.
Best way to root is go with ioroot25. I believe it is in lg g2 general.
Sent from my Nexus 7 using Tapatalk
Thank you for your reply.
How would I unroot my G2? Would I use ioroot25? Or is there some type of app that I would have to download? Correct me if I'm wrong, but... Is it possible to unroot with SuperSU ones is installed on your phone after a sucessful root?
Thanks.! :good:
SuperSU can unroot (and temp unroot, though anybodies guess if it'll survive an OTA). There's several other temp unrooters, I often use Hide My Root (try to get some perspective on what the device *actually* works like). Otherwise, removing su, supersu, busybox (if installed) and whatever else until /system looks unmodified works. If there's custom recovery, you (as well as I) probably need to flash that back to stock as well. Or.. quite likely there will be a version around to flash without taking the actual OTA update if there isn't already (haven't checked the other thread). That'll likely be the easiest rather than bother with redoing the work to fix it up again.
Nothing is risk-free of course, but unrooted and flashed back to stock recovery it should be at least fairly unlikely to hurt anything. Of course that's often the stuff I mess up.
Robles23 said:
Good afternoon guys,
I have a few set of questions and I will be glad if someone is able to kindly help me out. Please keep in mind that I am not an android expert as far as rooting, custom roms, etc... So I ask for patience from you guys!
Now... into the questions. I got my LG G2 2 weeks ago from Sprint. Great solid phone with killer specs. I previously had a Galaxy Epic 4G Touch. I was looking into rooting my LG G2 phone. However, somewhere in an article online, I read that, if I were to root my LG, I would no longer receive OTA software updates... Like an updated android version for example.. Is that true? I dont care about loosing root after updating. I just dont want to root my phone, receive an OTA update and then mess up my phone.. So thats my first question.
Next... I've done quite a few research online on how to root the G2 from sprint. What i am currently having issues with is finding the drivers. I know I must install them prior to attempting anything else. I read that I could use the Tmobile version drivers even though I am on sprint. But no luck finding those either. Could someone provide me with a link to download the drivers? Thanks! (Windows 8)
And last... I've seen many methods on rooting this device, that at the end, was confused on which one to use. Soo.. could someone share a link of a working method to root the LG G2 from Sprint (Android 4.4.2)
Thank you guys and I will be very grateful for any help. :good:
Click to expand...
Click to collapse
Well I took a OTA update this morning not thinking.....rooted but stock rom and now my phone wont come out of recovery.....Trying to fix this now...ugg! Not fun

Question about using 4.4.4

Hello
I'm about to upgrade from 4.1.2 to a 4.+ rom, my phone is unlock and root but after reading about the OTA stuff I'm worried this mess up my phone.
Some people say to stay stuck with JB while other have been telling me that upgrading will benefit my phone performance in some way or another. Can someone point me out into this so I can choose wisely into this?
Thanks in advance

[Q] What you should not do/install/flash??

Hii to all of you guyz
Maybe my question to all of you will help all off us together
Well I want to flash custom roms
I have read everything about knox
And I am not a noob at rooting ... flashing
But as I can see there is some things unclear with the knox thing
Well I know it is a warranty thing and I dont need it anyway couse I already woid my warranty by changing display by myself
But the question would be for all of you guys is what you should not try/do or flash
Couse it can then brick your phone?
Reading all about knox someone said you should not downgrade or you get instantly a brick
Is that true?? Couse I want to install lollipop and who knows I am on kitkat...does that mean I can not install JB or maybe if I make a backup of stock kitkat and go to lollipop can I go back to my stock kitkat backup?
Or is it like it was with my old phones like warranty void if knox tripped but if I have cwm or twrp
Can I feel free to flash anything with no worries?? Of course for my s4 mini 9195 model
Or should we all know what things are risky and can brick your phone
Please help us all
Thanks
Downgrading from stock kit kat to stock jelly bean can be a problem with Knox because of the bootloader. because the latest stock KitKat Bootloader is running version 2 Knox. And as far as I've read cannot be downgraded without some difficulty.
Personally I haven't tried flashing any custom ROMs yet but maybe try to stay away from flashing jelly bean or downgrading just because of possible issues. but flashing with a custom kernel between lollipop and KitKat custom roms shouldn't be a problem just maybe downgrading to jelly bean could be.
If you did want to downgrade to Jellybean definitely do some more reading or wait for some more experienced users to reply don't take the risk with your device unless you're sure everything will be ok.
Best of luck.
brljak83 said:
Hii to all of you guyz
Maybe my question to all of you will help all off us together
Well I want to flash custom roms
I have read everything about knox
And I am not a noob at rooting ... flashing
But as I can see there is some things unclear with the knox thing
Well I know it is a warranty thing and I dont need it anyway couse I already woid my warranty by changing display by myself
But the question would be for all of you guys is what you should not try/do or flash
Couse it can then brick your phone?
Reading all about knox someone said you should not downgrade or you get instantly a brick
Is that true?? Couse I want to install lollipop and who knows I am on kitkat...does that mean I can not install JB or maybe if I make a backup of stock kitkat and go to lollipop can I go back to my stock kitkat backup?
Or is it like it was with my old phones like warranty void if knox tripped but if I have cwm or twrp
Can I feel free to flash anything with no worries?? Of course for my s4 mini 9195 model
Or should we all know what things are risky and can brick your phone
Please help us all
Thanks
Click to expand...
Click to collapse
I have flashed lollipop roms and went back to kitkat. No problem whatsoever.
Thanks for your replies. Just want I needed to know...
But some more info from more experianced user are also good to hear
if any of them want to help us all to know what not to do/flash or try

Question about how to root 6.0.1 on Verizon Note 4 N910V

I'm a little confused about the conflicting answers I'm reading in the threads here and was hoping someone could give me a simple answer. As of now I am rooted on 5.1.1 running oscar_kernelv2.0. No special rom just regular touch wiz. I would like to upgrade to a ROOTED 6.0.1. My question is in order to do this do I factory wipe my phone, make sure I'm rooted on 5.1.1 and then I can just flash a rooted 6.0.1? I have no problem rooting into 5.1.1 I'm just confused about what the next steps are suppose to be after that in order to upgrade to MM. If anyone could help I'd appreciate it because the MM guides here are too vague.
First do this
http://forum.xda-developers.com/not...t/howto-bootloader-unlock-upgrade-to-t3398144
I'm a little confused about the conflicting answers I'm reading in the threads here and was hoping someone could give me a simple answer. As of now I am rooted on 5.1.1 running oscar_kernelv2.0. No special rom just regular touch wiz. I would like to upgrade to a ROOTED 6.0.1. My question is in order to do this do I factory wipe my phone, make sure I'm rooted on 5.1.1 and then I can just flash a rooted 6.0.1? I have no problem rooting into 5.1.1 I'm just confused about what the next steps are suppose to be after that in order to upgrade to MM. If anyone could help I'd appreciate it because the MM guides here are too vague.
Click to expand...
Click to collapse
I would go to this post specifically by @civichater . When i would go back and forth awhile back this is always where i turned to.
Questions belong in the Help section, not Development. Please read the sticky called "Rules for Posting in Development" before posting in there again :good:
THREAD MOVED
Tripper511 said:
I'm a little confused about the conflicting answers I'm reading in the threads here and was hoping someone could give me a simple answer. As of now I am rooted on 5.1.1 running oscar_kernelv2.0. No special rom just regular touch wiz. I would like to upgrade to a ROOTED 6.0.1. My question is in order to do this do I factory wipe my phone, make sure I'm rooted on 5.1.1 and then I can just flash a rooted 6.0.1? I have no problem rooting into 5.1.1 I'm just confused about what the next steps are suppose to be after that in order to upgrade to MM. If anyone could help I'd appreciate it because the MM guides here are too vague.
Click to expand...
Click to collapse
Flash the safe upgrade by hsbrad which is rootable. The upgrade guide is in verizon note 4 general forum. It invoves relocking your phone temporarily . You will need mobile data to run kingroot the upgrade will leave Your wifi unusable at this point but unlock is almost the same as the process u used if u unlocked 5.1.1
I had to get a "new" phone sent due to the screen on my previous one starting to push out from a swollen battery. It came with Marshmallow already installed. Will this unlock and root method work? The version number is 6.0.1.
will4958 said:
I had to get a "new" phone sent due to the screen on my previous one starting to push out from a swollen battery. It came with Marshmallow already installed. Will this unlock and root method work? The version number is 6.0.1.
Click to expand...
Click to collapse
you have to downgrade to 5.1.1 first.
mojoswagger1980 said:
Flash the safe upgrade by hsbrad which is rootable. The upgrade guide is in verizon note 4 general forum. It invoves relocking your phone temporarily . You will need mobile data to run kingroot the upgrade will leave Your wifi unusable at this point but unlock is almost the same as the process u used if u unlocked 5.1.1
Click to expand...
Click to collapse
Is the no wifi issue just a temporary problem UNTIL the rooted 6.0.1 is installed? Or will wifi never work as long as I'm running hsbrad MM?
The wifi problem is only temporary. It's because the bootloader is incorrect, but you'll fix that in one of the following steps. Just follow the instructions to the letter and it will work. Be patient and don't skip anything. I just rooted two note 4's in less than a week. Never thought it to be possible, but I'm extremely happy now. I don't even miss the Note 7 I had for a few weeks.

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