Downgrading from 4.4.2 to 2.3.6? - Galaxy S II Q&A, Help & Troubleshooting

Just a simple doubt.
Is it possible to downgrade from 4.4.2 to 2.3.6 or 4.1.2?
I am currently on SlimKAT 4.4.2 and it sucks. The battery life is hell. Also the camera doesn't work.
Can anyone tell me any way to downgrade?
The reason I wanna do this is that I only wanna use it as a backup phone.
And if possible, please guide me though the process.... Thanks....

thetitanium said:
Just a simple doubt.
Is it possible to downgrade from 4.4.2 to 2.3.6 or 4.1.2?
I am currently on SlimKAT 4.4.2 and it sucks. The battery life is hell. Also the camera doesn't work.
Can anyone tell me any way to downgrade?
The reason I wanna do this is that I only wanna use it as a backup phone.
And if possible, please guide me though the process.... Thanks....
Click to expand...
Click to collapse
Here is the link which can solve your issue. Just follow the steps as it is, and you've also got some screenshots to verify that you're on the right track.
http://www.ibtimes.co.uk/samsung-galaxys2-i9100-unroot-official-jellybean-firmware-460777
Regards.

warrior1208 said:
Here is the link which can solve your issue. Just follow the steps as it is, and you've also got some screenshots to verify that you're on the right track.
http://www.ibtimes.co.uk/samsung-galaxys2-i9100-unroot-official-jellybean-firmware-460777
Regards.
Click to expand...
Click to collapse
Thanks.... I'm trying it out now.

Related

Downgrade from 2.1 to 1.6

I successfully upgraded my x10 mini to Android 1.6 and I'm not happy with it. Does anybody can help me to downgrade to 1.6 firmware version?
Why would you want to downgrade it? it's not like they removed features, I thought it feels more responsive and generally has more features.
Im not really sure its possible to downgrade other than flashing an old ROM, but im not 100% sure
It is possible.. Look at this thread for the 1.6 image http://forum.xda-developers.com/showthread.php?t=826469
The flash tool are in the same section on the forum..
Meep
slateac said:
Why would you want to downgrade it?
Click to expand...
Click to collapse
We all know about the bluetooth improvement, but I can't pair my phone with the hands-free system in my car anymore.
FastDuck said:
Look at this thread for the 1.6 image...
Click to expand...
Click to collapse
Thank you very much. I will give it a try.

[Q] Newman NM890 recovery request

Hello, I have bought this phone and extracted recovery.img but online cwm builder can't build working cwm. can someone help me? Also I would like to ask, if the firmware for Big Easy W1 is compatible with NM890 because they look same by visual and by HW side.
Stock recovery in attachment. Please help, I even can't root device and I am not newbie in this stuff.
Hi akim14,
sorry for not being able to answer your questions, but where did you buy the phone? On most sites I searched for it, it is still pre-order only.
i have bought it from focalprice and nevermind, already have recovery and root.
akim14 said:
i have bought it from focalprice and nevermind, already have recovery and root.
Click to expand...
Click to collapse
Could you please explain how did you root your phone? I am sorry, but I am pretty new in this matter...
Thank you.
jbasoco said:
Could you please explain how did you root your phone? I am sorry, but I am pretty new in this matter...
Thank you.
Click to expand...
Click to collapse
do you have this phone?
akim14 said:
do you have this phone?
Click to expand...
Click to collapse
I actually bought one but received it and could not hear any sound when someone called in.
I sent the phone back to China and I am waiting for a new unit.
I have this phone but cannot find anything on how to root it, anyone know how ?
Or if there is a update as it is running 4.1.2 ?
Thanks in advance
zomig said:
I have this phone but cannot find anything on how to root it, anyone know how ?
Or if there is a update as it is running 4.1.2 ?
Thanks in advance
Click to expand...
Click to collapse
I haven't received my replacement phone yet, so I couldn't try nothing.
Any upare in this matter will be welcome...
I have now flashed 4.2.1 which is working a lot better than 4.1.2. Even the GPS is now working properly.
Still need root though.
Newman nm890
jbasoco said:
Could you please explain how did you root your phone? I am sorry, but I am pretty new in this matter...
Thank you.
Click to expand...
Click to collapse
yes I would also be very interested, I just got my Newman nm890 android 4.1.2 and it has difficulty picking up a cell signal where my other cell phone gets a couple of bars. I am having difficulty with rooting it. I have been waiting for the 4.2 to be available but different from the sales ad, it does not seem to be readily coming. The previous reovery.img with the QR is it 4.1.2 or 4.2.1. It looks like the nm890 is popular.
4.2.1
zomig said:
I have now flashed 4.2.1 which is working a lot better than 4.1.2. Even the GPS is now working properly.
Still need root though.
Click to expand...
Click to collapse
Where did you download the 4.2.1 firmware? My 4.1.2 is somewhat lagging.
zomig said:
I have now flashed 4.2.1 which is working a lot better than 4.1.2. Even the GPS is now working properly.
Still need root though.
Click to expand...
Click to collapse
Where did you get a ROM do flash to 4.2.1 ?
Thanks
f
Flash the one on this thread as it is better than the one i originally flashed. Here
If you want the original one then it is on this thread Here
zomig said:
Flash the one on this thread as it is better than the one i originally flashed. Here
If you want the original one then it is on this thread Here
Click to expand...
Click to collapse
I have just installed the ROM for my nm890 and now it Works great. All GPS/A-GPS problmes fixed and also Google contacts/calendar syncing 100% working.
Thank you very much!!!

[Q] Help updating to NC5 from NAB

I've been trying for the last 2 days to update from NAB to NC5. But I can't seem to get it. Its already rooted and I really want to try Sacs Custom v4, but I can't seem to figure a way to do it or thread that helps me fix the problem I'm having. If you need more info I'll be more than happy to give it, I just don't really know what to tell you guys to get this started. Can someone please help me?:angel:
the1000ydstare said:
I've been trying for the last 2 days to update from NAB to NC5. But I can't seem to get it. Its already rooted and I really want to try Sacs Custom v4, but I can't seem to figure a way to do it or thread that helps me fix the problem I'm having. If you need more info I'll be more than happy to give it, I just don't really know what to tell you guys to get this started. Can someone please help me?:angel:
Click to expand...
Click to collapse
What I did was use the one click restore to NAB. Then the OTA update to NC5.
You will have to root ad such again.
rosystreasures said:
What I did was use the one click restore to NAB. Then the OTA update to NC5.
You will have to root ad such again.
Click to expand...
Click to collapse
Ok, does it have to be a official NAB, and if you don't mind, can you link the thread that you found the one click NAB on? I'd really appreciate it
the1000ydstare said:
Ok, does it have to be a official NAB, and if you don't mind, can you link the thread that you found the one click NAB on? I'd really appreciate it
Click to expand...
Click to collapse
Here you go: http://forum.xda-developers.com/showthread.php?t=2657447
toviaheli said:
Here you go: http://forum.xda-developers.com/showthread.php?t=2657447
Click to expand...
Click to collapse
You sir, are a here ?? thank you so much

[Q] My phone is rooted, how do I unroot it?

Sorry I know you guys get common stuff like this a lot, and as such I searched for my issue but everything I found lead me to a dead end.
I'm currently using VZW Galaxy S4 (SCH-i545) with build VRUDMI1 and android 4.2.2
I had disabled OTA updates by using a guide about a year ago. I'm needing to unroot my phone and put it back to stock so I can get OTA and move on to 4.4 (I don't know enough about custom roms and flashing to do it without OTA).
From what I read, I need to use odin to flash a tar file while in download mode. Problem is, I don't know which file to get. I've looked at some guides but I can't find a working link for an SCH-545 VRUDMI1 with 4.2.2
Any help would be appreciated and thanks for your time.
thegh0st81 said:
Sorry I know you guys get common stuff like this a lot, and as such I searched for my issue but everything I found lead me to a dead end.
I'm currently using VZW Galaxy S4 (SCH-i545) with build VRUDMI1 and android 4.2.2
I had disabled OTA updates by using a guide about a year ago. I'm needing to unroot my phone and put it back to stock so I can get OTA and move on to 4.4 (I don't know enough about custom roms and flashing to do it without OTA).
From what I read, I need to use odin to flash a tar file while in download mode. Problem is, I don't know which file to get. I've looked at some guides but I can't find a working link for an SCH-545 VRUDMI1 with 4.2.2
Any help would be appreciated and thanks for your time.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2735172
es0tericcha0s said:
http://forum.xda-developers.com/showthread.php?t=2735172
Click to expand...
Click to collapse
Thank you, I did discover that very thread, but the build number doesn't match mine. I wasn't sure if that made any difference and out of fear of bricking my phone, I posted this to make sure. So even though the build isn't what mind presently says, it should be ok?
thegh0st81 said:
Thank you, I did discover that very thread, but the build number doesn't match mine. I wasn't sure if that made any difference and out of fear of bricking my phone, I posted this to make sure. So even though the build isn't what mind presently says, it should be ok?
Click to expand...
Click to collapse
Yea, this will update and unroot all in one. Like the post said, if that update doesn't work, then grab the NC2 one. It would be best to factory reset as well.

[Q] Instructions to Upgrade to lollipop with rooted kit Kat?

I have the note edge, still on kit Kat, it's rooted. But it's got a stock rom. I was thinking about upgrading to lollipop, but read I'd have to unroot kitkat, install the official lollipop, then root lollipop?
Are there step by step instructions, or maybe even an easier way out there?
I miss the days when we could just flash radio updates and any rom we wanted without doing anything else. Ha.
http://forum.xda-developers.com/showthread.php?t=2943993
primo523 said:
http://forum.xda-developers.com/showthread.php?t=2943993
Click to expand...
Click to collapse
Thanks but that thread is for T-mobile?
You have to Odin back to stock firmware. .. Let the OTA take place then re-root ..
Werd.
primo523 said:
You have to Odin back to stock firmware. .. Let the OTA take place then re-root ..
Click to expand...
Click to collapse
I assume that this hasn't changed at all?
OK2 isn't rooted yet, so flash the OG1 stock rom for lollipop and root that one. Don't take the OTA though cause you'll lose root.
Sent from my SM-N915P using Tapatalk
DevXen said:
I have the note edge, still on kit Kat, it's rooted. But it's got a stock rom. I was thinking about upgrading to lollipop, but read I'd have to unroot kitkat, install the official lollipop, then root lollipop?
Are there step by step instructions, or maybe even an easier way out there?
I miss the days when we could just flash radio updates and any rom we wanted without doing anything else. Ha.
Click to expand...
Click to collapse
Would you happen to have a nandroid of your KitKat have a friend who's battery can hardly last the day due to the constatnt drain issue on 5.1.1
cRiMiNaL_Genius said:
Would you happen to have a nandroid of your KitKat have a friend who's battery can hardly last the day due to the constatnt drain issue on 5.1.1
Click to expand...
Click to collapse
I'm sure I do somewhere. But it isn't a fresh install. It has my hacks and my own settings and my everything including any personal info they it stores? I. E. Google wallet info and lte encryption keys.
Thats no problem if you're still on KitKat make a new backup excluding the data and cache partitions, hopefully thas not too much for a friendly request lol

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