[Q] Downgrade from ICS? - Nexus S Q&A, Help & Troubleshooting

Hey,
A week or two ago my T-mobile Nexus S received the ICS update. Although I was really excited at first, my phone's performance has deteriorated extremely fast, to the point that now, it's barely usable. I guess there's a reason why google pulled the update...
Anyhow, now I want to go back to the original gingerbread that came on the phone. Is there any way I can downgrade my phone back to gingerbread WITHOUT being rooted?
Thanks in advanced.

Hello
You have to unlock the bootloader, and then flash the stock gingerbread with fastboot
Sent from my Nexus S using XDA App

I think you pretty much need to root it, install a custom recovery, and flash one of the Gingerbread ROMs. You can unroot it and relock the bootloader if you want to after you flash the Gingerbread ROM.
Here's a link to guides and list of ROMs.
http://forum.xda-developers.com/showthread.php?t=1067813

Related

Noob alert - Help with customizing

Hello all,
I am fairly new to android, the Epic is my first android phone purchased on launch day. But I am very new to HTC and the EVO Shift. I just purchased one for my wife. I was wondering if someone could point me to some instructions, or just give me some, on how to best install clockwork and a rom. Her phone came with the latest update. Basically I would prefer to remain stock with just root and wireless tether. If anyone could help me accomplish this I would greatly appreciate it.
You are going to have to look at the temp root thread that is right here in this forum since she is on the newest update. You are kind of limited to what you can do unless a permanent root solution is found. Wireless tether should work. I think you may be able to remove or freeze the bloat using somethin like titanium but it will probably come back when you reboot. Can't use any custom roms yet either...
crawrj said:
Hello all,
I am fairly new to android, the Epic is my first android phone purchased on launch day. But I am very new to HTC and the EVO Shift. I just purchased one for my wife. I was wondering if someone could point me to some instructions, or just give me some, on how to best install clockwork and a rom. Her phone came with the latest update. Basically I would prefer to remain stock with just root and wireless tether. If anyone could help me accomplish this I would greatly appreciate it.
Click to expand...
Click to collapse
The only root that has been gained on the evo shift GB update is temproot no perm root yet so on a simple reboot you lose root, there is no recovery and no custom roms while temp rooted, there are a couple threads dedicated to this stuff here already
Sent from my PG06100 using Tapatalk
strapped365 said:
The only root that has been gained on the evo shift GB update is temproot no perm root yet so on a simple reboot you lose root, there is no recovery and no custom roms while temp rooted, there are a couple threads dedicated to this stuff here already
Sent from my PG06100 using Tapatalk
Click to expand...
Click to collapse
Yeah I knew there was only temp root but I saw some roms that were gingerbread with root. So I didn't understand how that was. I thought maybe if you could get clockwork installed with temp root you could still flash a rom. So are the gingerbread roms only for people on froyo? Can you downgrade to froyo and upgrade to the gingerbread rom? Also what do you use to flash roms. With samsung you have odin. What do you use on htc? I see mention of ruu but have seen nothing on how to use it or where to get it. Sorry for so many questions and being really new to this side of the pond.
Sent from my SPH-D700 using XDA Premium App
crawrj said:
Yeah I knew there was only temp root but I saw some roms that were gingerbread with root. So I didn't understand how that was. I thought maybe if you could get clockwork installed with temp root you could still flash a rom. So are the gingerbread roms only for people on froyo? Can you downgrade to froyo and upgrade to the gingerbread rom? Also what do you use to flash roms. With samsung you have odin. What do you use on htc? I see mention of ruu but have seen nothing on how to use it or where to get it. Sorry for so many questions and being really new to this side of the pond.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Flashing clockworkMod while temp rooted isn't going to work, as soon as your phone tries to reboot you lose root. So you can't access Clockwork, which is how/where you flash ROMs. Currently there is no way to revert back to froyo, the new bootloaders do not recognize the froyo RUU. Basically until a perm root solution is found, temp root is the best you can do.
The ROMs that you see are for user that rooted while running froyo and never took the "official" update from HTC.
Did you buy your phone brand new or used? Go to settings about phone, software information.
If you have Android 2.2 you can root your phone. Otherwise you are screwed until HTC unlocks the bootloader.
VICODAN said:
Did you buy your phone brand new or used? Go to settings about phone, software information.
If you have Android 2.2 you can root your phone. Otherwise you are screwed until HTC unlocks the bootloader.
Click to expand...
Click to collapse
He said brand new so that means it came with 2.3.3
OK I will wait patiently until perma root has been established. Thank you all for all of the information.

Making sure I understand all this rooting stuff

Hi, I am waiting for my HTC Sensation to arrive from eBay. New to android and have been reading about rooting. Just want to make sure I am getting this clear:
So, to root, I'll need to to the S-off thing with revolution, then clockwork recovery, then SU to actually root it right?
I am not sure whether I need to root it, but I am interested in unlocking it for SIM and I read there's a way to do it if the phone is rooted. Also, I probably don't need some of the T-mobile apps and want to delete it. However, do I have necessarily have to flash a custom ROM after I rooted it? Can I just use what came with the HTC?
However, if I do this, I guess I can't update through HTC/T-mobile anymore right? So I'll have to flash some ROM, but does it have some modify ROM, or can I use the ROM that's official from HTC?
Can someone please correct me if I misunderstood the process? And also, can I reverse all this if I decide I just want to use it the way it was shipped except simunlocked, and be able to update newer version of the OS from HTC.
Thanks
Sensation rooting
I was just like you about a month and half ago. im new to android aslo but i'll help you. first- your right about using the revolutionary method and installing clockwork and super user. as for unlocking it for a SIM you might need super cid check this out http://forum.xda-developers.com/showthread.php?t=1192300
to remove some tmobile apps use titanium backup (it's in the market)
As for roms im using stock but it's rooted. but before you root please update to 2.3.4 because it really improve your phone but yes you would have to flash update roms after you root. but you can find the official one's here if you look for them as soon as they come out.
pretty much yes to your questions...even if you root you can stay with your stock rom and just use titanium backup to delete all the junk u dont want. Also, even if you cant get updates officially, devs here are nice enuf to post the newest stock roms for you to flash so dont worry. so i suggest you read these three threads to start off and have fun (just read directions very carefully)
http://forum.xda-developers.com/showthread.php?t=1192300
http://forum.xda-developers.com/showthread.php?t=1137311
http://forum.xda-developers.com/showthread.php?t=1232107
edit: ah, i guess someone else was replying too
darryll4sh0 said:
I was just like you about a month and half ago. im new to android aslo but i'll help you. first- your right about using the revolutionary method and installing clockwork and super user. as for unlocking it for a SIM you might need super cid check this out http://forum.xda-developers.com/showthread.php?t=1192300
to remove some tmobile apps use titanium backup (it's in the market)
As for roms im using stock but it's rooted. but before you root please update to 2.3.4 because it really improve your phone but yes you would have to flash update roms after you root. but you can find the official one's here if you look for them as soon as they come out.
Click to expand...
Click to collapse
Thanks for the quick reply. So I can only remove some t-mobile apps if it's rooted right? I was thinking of updating to the newest version before considering rooting. I think I will be kinda in the same situation as you....so when you say stock rooted rom...it's basically the same ROM as what t-mobile has with SENSE etc...but can be apply to a rooted phone without losing root right?
Finally, since you're not using any custom ROM and stuff... do u find it worthwhile rooting? what other advantage have you notice if you're using the stock ROM?
Thanks again!
rooting sensation
My rom is the same one that comes when you first get the phone. the only expectation is that it's updated to 2.3.4 instead of 2.3.3 and that it's rooted. When you root imagine like it's a window's pc and instead of using the guest account where stuff is limited, your now able to use the administrator account which lets you do anything.
As for advantages, i wanted to improve it's speed and battery life. the update helps but you'll find out that tmobile has alot of apps running in the background which slows it down and uses more battery and they also included useless app or two of the same kind of app. Right now im looking at other roms because im kinda tired of sense but i wish i could keep it's widgets.
darryll4sh0 said:
My rom is the same one that comes when you first get the phone. the only expectation is that it's updated to 2.3.4 instead of 2.3.3 and that it's rooted. When you root imagine like it's a window's pc and instead of using the guest account where stuff is limited, your now able to use the administrator account which lets you do anything.
As for advantages, i wanted to improve it's speed and battery life. the update helps but you'll find out that tmobile has alot of apps running in the background which slows it down and uses more battery and they also included useless app or two of the same kind of app. Right now im looking at other roms because im kinda tired of sense but i wish i could keep it's widgets.
Click to expand...
Click to collapse
Great. I think I'll just stick with the 2.3.4 firmware for now before considering flashing any custom ROMs etc.
So just so I am clear, I should update the unrooted phone to 2.3.4 when I get it. then I can perform the S-off, clockwork, superuser to get it rooted and just leave it as it is and use the existing ROM as it came with the phone. Until I need to update to a higher version, I will then flash a rooted version of whatever t-mobile came out with from here. Is that the deal?
Finally, what's superCID? Do I need that?
Thanks again.. you guys been a great help! I can't wait to play around with this when I get the phone this weekend
Rooting
Yep your correct....
As for super CID is something like a carrier unlock. This has something to do with updates i think. but by adding this you can flash any carrier's rom onto your phone. for example vodafone and orange are both 2 different europe phone companies and they both include different apps on their roms just like tmobile give there special apps. With super-CID you can put anyone of those carries rom on you phone regardless if it's a europe, usa, or asia sensation. but you don't need- i haven't put it on either.

Upgrading from 2.2.1

I need to upgrade my wifes phone to the newest version. If i do a sidelod will I need to root the phone again? whats the easiest thing to do? Her phone is currently rooted with stock rom
Thnks
Install this one from recovery if she wants to stay completely stock. This is the ONLY true gingerbread stock 2.47 ROM out there. All others have modifications. It is already rooted. Backup before updating.
http://forum.xda-developers.com/showthread.php?t=1192372
Sideload? You don't sideload a ROM when upgrading. Only when installing apps. And you shouldn't need to sideload anything anymore, especially if you are rooted.
Check the sticky that has the stock roms. Post four in Genes thread that I linked doesn't even have the bloat removed. I ran it for several weeks, so I know it is as stock rooted as you can get.
Sent from my HTC Inspire 4G using Tapatalk
I keep forgetting about that 1.

[Q] root & unlock

Hi, this might be stupid to ask but I really need answer for this -
1. I know that with rooted stock OS one cannot get OTA updates, but can anybody get OTA updates with unlocked bootloader - non-rooted stock OS ?
2. Also all the guides I have found to unroot a xoom is asking to flash a stock OS, which will erase all the data & all the customization which I have made. Is there is no way possible to unroot the current rooted stock OS without losing out the small customization.
I came in here looking for the same answer... want to update, I'm rooted, but can't get it OTA this way.
Go to Development and the first post by stachre is rooted stock ICS 4.0.3, cwm flashable zip.
Thats just fr wifi, while i m on 3g build
Still waiting fr an answer :-(
Sent from my MZ601 using XDA App
You DONT need to unroot for to get a ota.
The ota is NOT out for the 3g version or any other version at this point.
If EVERYTHING else is stock besides root the ota will install.
The state of the bootloader does not matter either.
I think there's a chance to brick your device if you do an OTA update after you unlock your bootloader?
So if you really want to try 4.0 then I would recommend the TeamEOS roms, they have roms for both the wifi only and the 3G versions.
No there is no chance.
albundy2010 said:
You DONT need to unroot for to get a ota.
The ota is NOT out for the 3g version or any other version at this point.
If EVERYTHING else is stock besides root the ota will install.
The state of the bootloader does not matter either.
Click to expand...
Click to collapse
thanks matey , just 1 clarify require on your statement.
my mz601 xoom's current state is unlocked bootloader, cwm recovery, rooted with stock 3.2 OS with a small change in framework-res.apk to send sms.
for this situation also your point stands right?
No.
I put the word everything in caps for a reason.... nothing that is supposed to be there can be changed or deleted. Includes apks recovery.... you know everything

Stock recovery.

Hi, all.
Want to prepare for ICS update....
It been a long time since I messed with the phone 9 month or so....LOL
Have S-OFF, CWM, rooted, but still on stock ROM, since I use my HD2.
I remember seeing somewhere a thread with instruction on how to switch back to stock recovery.... one of the requirements of flushing ICS OTA.
Now I searched everywhere and can't find it....
Would you be so kind to point me to it?
Thanks in advance!
Get it from any RUU and flash via fastboot
but you'll need an RUU anyway as you need to 100% stock to use the ota
Sent from my Galaxy Nexus using xda premium
I'd do a Nandroid Backup of the stock rom. I think this is the easiest way to restore stock rom if you need.
Tester30 said:
Hi, all.
Want to prepare for ICS update....
It been a long time since I messed with the phone 9 month or so....LOL
Have S-OFF, CWM, rooted, but still on stock ROM, since I use my HD2.
I remember seeing somewhere a thread with instruction on how to switch back to stock recovery.... one of the requirements of flushing ICS OTA.
Now I searched everywhere and can't find it....
Would you be so kind to point me to it?
Thanks in advance!
Click to expand...
Click to collapse
Shoot throw me in the same boot! I tried reading mikes guide for updating and I think its probably 100x simpler just doing the OTA and calling it a day. I'm not sure how much I'll personally be going back to this phone as I've crossed over to the SGSII now but seeing how HTC is putting out that limiting "one" phone I suspect this will be my last HTC phone for awhile.
I'm not dissing mikes ARHD rom either but I'm looking for the simplest of simplest instructions (other than OTA) like:
1. D/L (only) this one file/ROM and CWM/4EXT and flash.
2. ???
3. Profit.

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