I currently have a 19020T Nexus S running MIUI running build number MIUI-109020 on GB 2.3.5. How exactly do I get to the official ICS from Google?
I read somewhere that you need to flash to stock GB and then flash the official ICS ROM. How do I flash back to stock from MIUI? Sorry If this is kind of a noob question :\
EDIT: I check on ROM manager and I have a backup of stock GB from 3 months ago. Should I restore to that?
EDIT 2: Please close this thread. I just realized I posted this in the wrong section.
use CWM...
Download this (credit to marsrogers). This is google's stock ICS full package (not increment package, so you don't have to install stock 2.3.6 first).
Put it into the root of your sdcard, name it whatever you want, just make sure you can find it.
Boot into recovery (don't ask me how).
Select "apply update from /sdcard", then choose the zip package you downloaded before.
After it completes the installation, reboot your phone, then you have stock ICS.
Related
i accidentally deleted my stock os in my nexus one. i found some stock roms but i keep getting this error every time when i try to install them
E:signature verification failed
What recovery are you currently using?
If it is stock recovery you will need to use the official google file and rename it "update.zip" and place it on the root of your SD card. Make you sure you visit the development section and read up on the procedures, as your radio version and recovery are not listed, its hard to tell from your post. If you are indeed in stock recovery...
Here is the original, official ROM http://forum.xda-developers.com/showthread.php?t=614057, make you sure you load it correctly. And of course...I am not responsible for anything that may go wrong. You will soon get the OTA update to 2.2 Froyo.
If your on a custom recovery, you should download a custom ROM. Some are based on the stock AOSP so if that's what you want you can find one like that and flash it through custom recovery after the triple wipe (factory/cache/dalvik). If that doesn't work try switching to the other custom recovery image. Aman-Ra is one, ClockWork is the other.
cheers
I know that Acer pulled today's update, but will it be possible to switch when it is released again?
Leaked 3.1 to official 3.1
Yes it is, just a little confusing though. You have to know which region your tablet is from http://secure3.tx.acer.com/FindSystem/FindSystem.aspx?title=Information About Your System. And then go about flashing a couple of ROMs to get you ready for the update. Instructions here:
http://forum.xda-developers.com/showthread.php?t=1155664
I am a total noob and wasted my whole day yesterday trying to figure this out. In the end texonex helped me out. Starting with the leaked 3.1 update here's what I did (courtesy texonex):
1. Root the device (http://forum.xda-developers.com/showthread.php?t=1138228). Download Acer Recovery Installer from the market, and from there install the clockwork recovery image. Choose no for a backup of the current recovery.
2. Download the backup file for 1.104.02 here, thanks to camelot1972
dl.dropbox.com/u/34113636/2011-06-24.12.20.13.zip, I guess you could also use the file from here: http://forum.xda-developers.com/showthread.php?t=1113878. This is for the US version.
If your tablet is from another region you would have to find the appropriate "default" version number in the how-to (what firmware is right for my country).
3. Extract the contents from the zip file and put them in the backup folder for clockwork mod on your SD card (take your SD card out of the tablet and connect directly for all the steps), if you do not see the backup folder, I suppose you can make one,e.g. [micro sd]\clockworkmod\backup\2011-06-25.22.14.07. I guess this exact string will still show up in clockwork recovery. I made a backup of the leaked 3.1 and that gave me the folder, and I just replaced the files. The date part is obvious in the name however I wouldn't venture a guess what are the other digits in the folder name.
If you downloaded the file from [OTA] Full Package and Update page, you'll need first to decrypt the file using the decrypter and then extract the contents of the decrypted file. One of the extracted files is update.zip which goes on to the SD card no subfolder in this case.
4. Restore the firmware using CMW using full restore for the US version, or update from the sd card zip if using a full package zip file.
At this point I think you need to save the recovery image for the non-US versions. Follow the instructions in the how-to or just use acer recovery installer to flash the clockword recovery again and this time choose yes to backup the current image.
5. Download 1.104.02 to 1.141.07 update and flash it with CMW.
Or the appropriate latest update file from your region(highest version number).
6. Flash recovery image to 1.141.07, this is option 4 in Acer recovery installer.
For non-us versions restore the recovery image, unroot and restore factory defaults.
7. I stopped here and now am waiting for the OTA. According to the how-to, you roll back to the full defualt package by using the standard ACER recovery (Power + -Vol) after copying the zip file on to the SD card, delete the zip file copied before.
8. Go to settings and trigger update manually. OTA will prompt you the new 3.1 update. I suppose you do not need to unroot.
You can also install the stock ROM from here:
http://forum.xda-developers.com/showthread.php?t=1159443
Thanks to Bec07 (how-to), vache (stock roms) and sc2k (un-rooting) for their contributions or I would have been totally lost in trying to downgrade my tablet from the leaked 3.1. Hope this is helpful, and goes smoothly because if it does not I wouldn't have clue how to fix it.
Sorry for this off-topic post, but you said that acer pulled the update: And I still have it (haven't updated and cant anyway). Is this not right?
What I meant was its not being pushed to more users for now.
Hello, I am in a big hurry so I am sorry for that I have not checked the whole forum but I have to ask too return too official rom and unroot.
I have updated too 2.3.5
Many thanks too the one/ones who can give me an ansver.
2.3.5 is already an official ROM Anyway you can flash the stock rom again or if you want to downgrade to 2.2 you can try this method: http://forum.xda-developers.com/showthread.php?t=1369296. Also if all you want to do is to unroot I think that you can do it with the app you rooted it.
What i meant was if I rooted and installed a custom rom how to go back to official whit no root. How difficult would it be?
And I found another way for downgrading witch worked for me and was quite easy
1. Put the dload on the root of SD-card (I used 138sp4)
2. Then go to storage in preferences. Head too the bottom then choose "upgrade SD-card". The phone blacked out, started up and installed 2.2
3. The phone boots up in recovery because of many errors. I choose wipe data/chache and wipe chache and reboot.
4. The phone rebooted and I am back to 2.2.2 from 2.3.5.
I hope this method works for everyone since it is so easy.
I was just wondering if someone could point me to what I need to go back to stock and get OTA updates, I live in the US and would like to know which file to download, or does it matter? Do I need the full package? and which honeycomb version should I do? and which file under the version of Honeycomb should I get? or does it matter? Sorry about being n00bish I just would like to get back to stock so I can start over with this thing and get the info down about it.
Hi,
I've been using AfterOTA to go back to stock. It's very easy. I used version 1.01 which isn't available now but 1.07 should still be able to do the same thing.
Which file you use is important as they are geared for different regions of the world. A lot of the files from the Full Package thread aren't there anymore so your choices are limited. It needs to be a full package though, it should be over 300MB. An update won't work.
Basically, you use AfterOTA to install the bootloader and recovery from it's stock tab. Have the update.zip file on the root of your SD card (some of them need to be decrypted). After the tool installs the stock recovery boot by holding down the left or top volume key. That will automatically install whatever update is on the card. Version 1.01 had separate ICS and HC bootloaders I'm not sure how 1.07 is set up. Then just let the update process happen.
I doubt that you'll find anything earlier than HC 3.2 for your (our) region. If you just want a stock ICS tab you could just use that update.zip and skip HC entirely.
Good Luck
Can you point me to the stock ICS zip we would use for our US tabets? I found a page on here http://forum.xda-developers.com/showthread.php?t=1113878 but they dont have an ICS Full Package and I don't know which HC 3.2 one to use. it says to look at my current version but I am on a flexreaper ROM. I want to remove the recovery and bootloader and go completely stock and upgrade to OTA ICS so I can then run After OTA to get a fresh new recovery and ICS bootloader. thanks for your help.
My stock 1.104.02_COM_GEN1 OTA'd to 1.033.00_PA_CUS1.
From Vache's thread the Acer_A500_7.006.01_COM_GEN2 file will update to 1.033.00_PA_CUS1. I don't think this file needs to be decrypted.
1. Download that file. Put the update.zip file on the root of your SD card.
2. In AfterOTA on the stock tab choose A50x. This should install the HC bootloader and standard recovery.
3. Disconnect the tablet. Power down the tablet. Reboot by holding the left or top volume key while pushing the power button. This should start installing the update.zip on the card. If you wind up in CWM then AfterOTA didn't work and you'll need to downgrade.
4. Try to boot after the update. It will probably get stuck at the logo. If it does you'll need to hard reset (bottom volume key + power + slide rotation locker). It takes a while for the first boot and it might crash once while setting everything up.
5. You should be in HC 3.2 from here you can OTA all the way to ICS. You'll need to install the ACER update enhancer from the market b4 it will see the ICS update.
I hope this works for you.
CWM Recovery booted, instead of flashing the update.zip, How do I do it now?
I don't know why AfterOTA isn't working for you. I really thought it would. Oh well, Gersma says it's only for OTA. There are other people who probably know better, but I think you're going to have to get a stock bootloader on there before you can use any of those files. My guess its that you'll need to follow the downgrade guide. Search on "rollback".
I hope you find a better solution, but the rollback isn't that hard.
Good luck.
what if I apply the update.zip from CWM using the "apply update from sd card"? would that just force the up date and wipe everything with the stock bootloader and ROM that is in the update.zip?
I don't think that file will work from CWM. Maybe one of the stock ICS leaks would work. If you can load one from CWM it can load the BL and it will replace the recovery when it reboots. Then you should be able to use AfterOTA to return to stock and upgrade through the OTA's.
hi everyone
i'm explaining the problem that's getting me crazy!
I've got an a500 tab. it was HoneyComb 3.1 at first, I downloaded ICS 4.0.3 Stock Rom and installed it via SD Card, Power + Vol- button.
i've been using it a few monthes now i want to use a custom rom like tegraowners JB.
my current version of rom (ICS 4.03) can't be rooted with ICS Root for a500 because it's version is'nt supported.
so i decided to install a 3.1 HC Stock rom, root it and use custom roms.
i downloaded 3.1 stock rom, named it update.zip and copied it on a sd card.
inserted SD card in tab and turned it on with Power + Vol-. here is the problem!
first i see recovery mode loading then an android logo with a (!) sign on it.
cdn.gooyait.com/uploads/android-recovery-mode-600x276.jpg
and tab get's restarted...
any idea?
I don't know maybe i've downloaded the wrong rom.
if yes please link to the correct rom for thei version:
Kernel Version:
2.6.39.4+
Image Version:
Acer_AV041_A500_RV21RB01_WW_GEN1
Build Number:
Acer_AV041_A500_0.014.00_WW_GEN1
PLEASE!
AHashemi said:
hi everyone
i'm explaining the problem that's getting me crazy!
I've got an a500 tab. it was HoneyComb 3.1 at first, I downloaded ICS 4.0.3 Stock Rom and installed it via SD Card, Power + Vol- button.
i've been using it a few monthes now i want to use a custom rom like tegraowners JB.
my current version of rom (ICS 4.03) can't be rooted with ICS Root for a500 because it's version is'nt supported.
so i decided to install a 3.1 HC Stock rom, root it and use custom roms.
i downloaded 3.1 stock rom, named it update.zip and copied it on a sd card.
inserted SD card in tab and turned it on with Power + Vol-. here is the problem!
first i see recovery mode loading then an android logo with a (!) sign on it.
cdn.gooyait.com/uploads/android-recovery-mode-600x276.jpg
and tab get's restarted...
any idea?
Click to expand...
Click to collapse
Stock recovery probably isn't designed to flash anything other than ICS. (Or it can't go backwards?). As for rooting, the blackthud3r ICS root tool oughta get ya done. (There are 2 methods, search and find one. For your case I recommend number 2)
[Anyway, don't worry about rooting the stock ROM, on an A500 this doesn't help you get jellybean.]<- MAY BE WRONG. In order to install a custom ROM, you must install a custom bootloader and recovery. Here is a guidehttp://forum.xda-developers.com/showthread.php?t=1622425 Once you've gotten through that(and assuming you haven't died of heart attack), you can install a custom ROM. Just follow the instructions on said ROM's thread. My favorite(albeit, a bit buggy) one is here :http://forum.xda-developers.com/showthread.php?t=2239476&highlight=jellybean+rom&nocache=1. Good luck!:good:
EDIT:
You need a CPUID to flash your bootloader. I don't know if you need root to get that.
Install a custom bootloader
You shold read about custom bootloader, it isnt that difficult, you get root of your iconia, download a flex software it automaticly downloads the latest recovery I recommend TWRP, and from ther you could touch the option install and select you zip file