yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] riverak2:
1) I attempted to undo root, but got a "booting failed" message after following the steps.

2) I then used fastboot to erase boot, recovery, system, cache, and userdata to start fresh and

re-flash the stock kernel and recovery.

3) I then re-flashed the stock kernel and recovery but continued to get "booting failed".

4) Once again, I used fastboot to erase boot, recovery, system, cache, and userdata to start fresh.

5) This time, I re-flashed CWM and insecured kernel images.

6) After flashing the insecured kernel, I get hung up at the Acer logo.

I guess #2 was a bad move because I think erasing my boot messed things up.

Any ideas on how to salvage?

PS: I found a link to the stock Acer update.zip file. Would I be able to flash if I can somehow get into CWM?
[Android Software/Hacking General [Developers Only]] S4ph1r:
You can boot into recovery with "fastboot boot recovery recovery.img"
[Android Software/Hacking General [Developers Only]] goralpm:
I have this same problem, do you get to CWM or boot recovery?
[Android Software/Hacking General [Developers Only]] PsyDonia:
one question what stage should the A210 be in.

fully on or should it be off or maybe start it and press some buttons what buttons if so.
[Android Software/Hacking General [Developers Only]] thwak:
There is a YouTube video (which appears to be done by the author of this thread) that steps you right through this process. I can't post the link because this forum won't let me. It is titled 'How to root Acer Iconia A210 Only Jellybean'.

Now I have a question: Has this been tested on 4.2 JB yet?
[Android Software/Hacking General [Developers Only]] PsyDonia:
Thanks
[Android Software/Hacking General [Developers Only]] thwak:
You are welcome, though you could click the Thanks button at the bottom of my post above to *really* thank me. :)

Also, I'm thinking that my question above may be moot as Acer may not have released 4.2 on the 210 yet. Won't know until I get mine from them on Friday (shipping takes forever over the holidays).
[Android Software/Hacking General [Developers Only]] PsyDonia:
I get one error.

In the first step when unlock the boot loader. The pad say canceled by user or something like that.

Any idea what I can do.

Edit

I was to slow to press the unlock key on pad.

Thanks its now rooted
[Android Software/Hacking General [Developers Only]] PsyDonia:
Ok this worked good. But then I was going wild and flash James ROM. Booted into cwm. Wiped data factory data.

But then it shut off.

And think that was not good. I try start it again but it comes to Acer logo and nothing more.

Is my tablet doomed now or what can I do.

edit

after many try I manage to get into CWM its now jamesrom on it.
[Android Software/Hacking General [Developers Only]] thwak:
I have a question about a James ROM YouTube video that goes over how to root an a210 and install James ROM. Unfortunately, there is one section of the video (at 3:15 into the video) where he does a reboot by dropping the enter key on a fastboot shell command and then holds the -vol and +vol buttons. But I can't figure out what the exact button sequence is - or whether the power button is needed in this situation.

I know that when you want to enter recovery mode and you have the unit turned off, you use the power button plus the minus volume button and then switch to the plus volume button, but in this case he is doing with the unit already turned on and invoking the reboot from the shell command prompt.

I can't get a straight answer from their technical support as to which buttons he is actually pushing to enter recovery mode from the turned on state rather than the turned off state.

Can anyone please help me figure out what he's doing here and what the exact button pushing sequence needs to be?
[Android Software/Hacking General [Developers Only]] PsyDonia:
you hold down vol down. press power button. until first vibrate then you let go of power button then on second vibrate you let go of vol down and press vol up. thats how to boot into recovery.
[Android Software/Hacking General [Developers Only]] thwak:
You push the power button even when the tab is already on?
[Android Software/Hacking General [Developers Only]] BladyPiter:
I have a 211, root successful, 3G is working properly with the kernel of the a210.
[Android Software/Hacking General [Developers Only]] S4ph1r:
Try "ADB reboot recovery";)

Gesendet von meinem Nexus 4 mit Tapatalk 2
[Android Software/Hacking General [Developers Only]] thwak:
I don't think that answers my question because that is not the command that he used in the video.

I'm actually quite surprised at how difficult it is getting an answer to this question. I have asked questions here on this forum, left a question on the YouTube page and sent an email directly to his technical support. Still can't get a straight answer out of anyone.
[Android Software/Hacking General [Developers Only]] PsyDonia:
thawk he is doing the same if you do it with tablet on of off you get into recovery you dont have to have it off.
[Android Software/Hacking General [Developers Only]] thwak:
So you are saying that, even with the tablet already turned on, you still need to hold the power button as well as the minus volume button to enter recovery? That doesn't seem to make much sense to me, but I will trust you if you say that that is correct.
[Android Software/Hacking General [Developers Only]] PsyDonia:
for me if i hold down pwr and vol - it restarts just like when I have it off.
[Android Software/Hacking General [Developers Only]] thwak:
Well, thank you for your experience. Good to know!
[Android Software/Hacking General [Developers Only]] thwak:
After thinking about your post, I realize that maybe you are saying that he should just use the above command rather than pressing any buttons at all to reboot and enter recovery? Is that what this command does? Reboot and enter recovery in one command?
[Android Software/Hacking General [Developers Only]] PsyDonia:
yes if you connect the tablet to a computer and send thos command it reboot the tablet and enter recovery without press any keys.

but you have to have it connected to the computer.
[Android Software/Hacking General [Developers Only]] thwak:
Thanks much for this. That seems the easiest option of all!
[Android Software/Hacking General [Developers Only]] SERGIOFLO:
DVB-T USB support

DVB-T USB is support in this method like ISC??

thanks
[Android Software/Hacking General [Developers Only]] vetzki:
AW: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

No
[Android Software/Hacking General [Developers Only]] SERGIOFLO:
Exist any method to make this in JB? soport DVB-T USB
[Android Software/Hacking General [Developers Only]] SERGIOFLO:
DVB-T USB suport

anyone knows a method to suport DVB-T USB in JB
[Android Software/Hacking General [Developers Only]] Sc4ryB3ar:
Ok, I'm very confused. I have watched the video a couple times, just to assure that I have the process down. I have downloaded the A210_root.zip and opened. I do not see anything with tool_a210_4.1.1_root, or a corresponding shell.bat anywhere in the zip. Am I missing something? I have also downloadded the James Rom 2.2b2 and #.0 in hopes of finding the 'tool' and 'shell' to no avail...Is there another file I should be downloading?

Thanks
[Android Software/Hacking General [Developers Only]] thwak:
Everything should be in the folder when you extract it. When you Unzip the folder, what do you get?
[Android Software/Hacking General [Developers Only]] Sc4ryB3ar:
adb.exe

adbwinapi.dll

adbwinusbapi.dll

cwm_recovery.img

fastboot.exe

insecure_kernal.img

su

that's all I have

---------- Post added at 02:00 AM ---------- Previous post was at 01:41 AM ----------

nevermind, I figured it out :)
[Android Software/Hacking General [Developers Only]] modiand:
what was the fix because I am having the same exact issue?
[Android Software/Hacking General [Developers Only]] Sc4ryB3ar:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

The shell.bat that you see in the video is just a shortcut to where the adb is installed. so, you have to install the a210 drivers and make sure it can connect to the computer with usb debug on. then you have to download and install the android developer sdk. Then after those are completely installed and updated fully (sdk took a couple of times for me....), then you have to go into your cmd prompt in windows and use the adb function (per the outlined instructions) through that.....
[Android Software/Hacking General [Developers Only]] modiand:
ok I got everything installed but how in the heck do I run these commands?
[Android Software/Hacking General [Developers Only]] modiand:
WOOOOWWWWW finally got it. Turns out that windows 8 sucks. Had to manually go into the drivers folder and run the exe from the windows 7 folder. Then I had to copy all of the root files into the sdk platform-tools folder because the adb.exe that came with the root tools wasn;t working. Hours of trial and error and a solution has finally been discovered
[Android Software/Hacking General [Developers Only]] djdandew2013:
Can anybody simplify these instructions please? i want to install root but i don't want the custom rom as mentioned in the youtube vid. and do i need the android sdk installed as somebody mentioned above. thanks in advance guys.

I have already downloaded and installed usb driver and downloaded a210 root folder i am just stuck what i am am soposed to do now?
[Android Software/Hacking General [Developers Only]] thwak:
The instructions in the original post don't say anything about installing a custom ROM. You should be able to follow those and root your device. Everything you need should be included in the zip file.
[Android Software/Hacking General [Developers Only]] djdandew2013:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

Yes but I am stuck on the original instructions, I have downloaded the a210root zip unzipped it and there was only one file named a210root with no file extension to it, in the files properties it just said file and I then used win raw to open it, I now have 7 files

Adb.exe

Adbwinapi.dill

Adbwinusbapi.dill

cwn_recovery.IMG

Fast boot.exe

Isecured_kernel.IMG

su

I now need to know where to proceed from here as step 1 says open the shell.bat but their is no shell.bat hence why I am stuck. I have also seen a poster on here say that you need to install the android SDK is this true because if it is then should that also be in the instructions.

I would appreciate it if somebody could help me out here with some clear simple instructions, thanks in advance.
[Android Software/Hacking General [Developers Only]] thwak:
it sounds to me like the download has gotten mangled. Does anyone have the original download?
[Android Software/Hacking General [Developers Only]] djdandew2013:
Could be bump for help please guys
[Android Software/Hacking General [Developers Only]] thwak:
The original poster is going to have to check and re upload the download.
[Android Software/Hacking General [Developers Only]] davidof:
new link with shell http://tegra3.ru//uploads/files/1355909056_a210-root.zip

works with acer iconia A211 :)
[Android Software/Hacking General [Developers Only]] S4ph1r:
Zipfile is back online and should work again fine.

It was broken.
[Android Software/Hacking General [Developers Only]] zener773:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

Would anyone be kind enough to upload the stock kernel and recovery img?
[Android Software/Hacking General [Developers Only]] Xsi18:
http://www.android-hilfe.de/root-cu...211/356952-howto-acer-a211-root-jb-4-1-x.html

This is root for a211 but the language is german.. Is it the same thing with your topic? Can you explain in that link to us?
[Android Software/Hacking General [Developers Only]] S4ph1r:
I am "keving" on "Android-.Hilfe". I created the HowTo there in German first.

@zener773: stock recovery + kernel are in the zip file.

I downloaded it and checked it again.
[Android Software/Hacking General [Developers Only]] raptoro07:
Thanks OP! This worked very well on my new a210. Three notes though:

1. I kept having problems entering the adb reboot-bootloader command. That's because it should be "adb reboot bootloader"

There should be no -. Once I figured that out it took like 5 minutes.

2. It was said a few pages back, but it should be in the op how to get into recovery without adb. Its easy. Just left volume and then power, hold volume till the second vibrate and then press right volume till it reads starting boot menu.

3. Finally, the cwm recovery included is 6.2.4 I think but it is not touch. Is there a touch version of cmw? I thought I saw there was in the YouTube clip.
[Android Software/Hacking General [Developers Only]] darkspr1te:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

Currently running this thread's Root patch, many thanks. Is any dev wanting to work on cm10.1 if so give me a shout.

I am currently finishing off a ROM for Korean galaxy notes but once that's done I would like to port uPhone and cm10.1 to our humble tegra device

from darkspr1tes lair
[Android Software/Hacking General [Developers Only]] raptoro07:
I want to work on a port of AOKP since there is an official build for the A510. I don't think there is any difference between the A210 and A510 but storage space. Is this right. I noticed that the CWM recovery installed with this root method says A500. IS this a stock A500 recovery or a modified one that was just not changed to say A210? The only real differences may be the different partitions. Otherwise you could probably just flash an A510 ROM. I'm thinking about trying it but don't want to brick. Although I don't think you can really brick by just flashing a ROM. I'm not going to touch firmware etc.
[Android Software/Hacking General [Developers Only]] sssqueue:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

Hello everyone. A bit off topic but it's the only reason I would root my new a210. I think the answer is no, but is there anyway to delete system apps without root? I.E. delete the bloat.
[Android Software/Hacking General [Developers Only]] raptoro07:
No. You need root to delete system apps. Rooting was super easy with this guide and files. The toughest thing for me was getting the drivers setup for Win 8. Following the guide was simple though. Just do it. :)
[Android Software/Hacking General [Developers Only]] LaLey:
I rooted my a210 with this tutorial.

and now i try to unroot with this tutorial.

but it wont work.

When i try to get into the boot menu i get the message:

When i flash the CWM recovery and try to get into the boot menu, the CWM starts.

So something seems to be wrong with the stock recovery!?

P.S.

The link to the A210 USB driver is linked to the acer support page. and there are no usb drivers to find.

But do i need them if ma tab is recognized by the pc?
[Android Software/Hacking General [Developers Only]] raptoro07:
I think you do need the drivers. On the acer support page just click on Drivers and Manuals then you can enter your device (A210) and it will take you to the device page where you can find and download the USB drivers. That's what I did. It was easy to do and you might need them for the adb composite device or fastboot.
[Android Software/Hacking General [Developers Only]] LaLey:
I alreadey tried. now i found out that the usb drivers are only available in the list when i choose the android 4.0. when i choose android 4.1 the usb drivers disappear.

i will try and give a feedback if it worked.

EDIT: I flashed the custom ROM again,

enabled usb debugging,

did the whole unroot procedure again,

no change, still the error message of "booting failed"
[Android Software/Hacking General [Developers Only]] darkspr1te:
Re: [HowTo] Acer A210 Root [ONLY JB 4.1.1!!!]

If your device is listed as fasyboot in device manager then its using fast boot protocol and fast boot commands, adb only comes in once device has booted a kernel and landed you in user space.

Fast boot is where you flash boot loaders recovery images, boot.IMG etc.

Example

fastboot boot boot.img

That boot a local boot.img
[Android Software/Hacking General [Developers Only]] LaLey:
Yeah thats right...

I changed the "EDIT" you quoted before you posted...

I already tried when the pad was booted.

but no change...
[Android Software/Hacking General [Developers Only]] raptoro07:
Sorry if misleading you. I thought you were trying to ROOT, not UNROOT.
[Android Software/Hacking General [Developers Only]] rgbolton1:
Hung on waiting for device

I installed the tablet drivers, enabled usb debugging but when I type in the second command it freezes on waiting for device. Please help Im stuck!!!
[Android Software/Hacking General [Developers Only]] raptoro07:
What command are you doing that it is stuck on?
[Android Software/Hacking General [Developers Only]] LaLey:
Somebody can help me?

The USB drivers are installed and i am able to send adb and fastboot commands.

When there is CWM and James ROM 3.0 on the tablet it will boot.

But when i flash the stock recovery the tablet shows the message i quoted above.

Maybe somebody can give me his stock A210 CWM backup?
[Android Software/Hacking General [Developers Only]] raptoro07:
My guess is that James ROM or the insecure kernel needs an unlocked bootloader and/or custom recovery. What you need is a stock ROM, I think you are right. Can you boot to fastboot and run the update exe from the Acer site?
[Android Software/Hacking General [Developers Only]] LaLey:
Today in another (german) forum somebody wrote a workaround how to fix this problem.

I dont know if im allowed to post the link in here!?
[Android Software/Hacking General [Developers Only]] S4ph1r:
Should be now a little bit easier to handle.

Changelog:

Added Flashable Root Zip
[Android Software/Hacking General [Developers Only]] rgbolton1:
Im stuck on the second command. fastboot oem unlock
[Android Software/Hacking General [Developers Only]] raptoro07:
You have to follow the instructions on the tablet screen. You have to use the volume button to select unlock and then press the unlock icon on the screen. Be fast because you have like ten seconds. It took me a few tries to figure it out.
[Android Software/Hacking General [Developers Only]] S4ph1r:
As updated on the first post :)

fastboot oem unlock
[COLOR="Red"]Navigate with Volume Up / Down and unlock![/COLOR]
[Android Software/Hacking General [Developers Only]] strikelight:
I did a huge mistake... Just got my a210... I followed an unlock/root method that I found on YouTube (mistake #1, I know)... it made no mention of requirements...

I found out that it was this method from this thread... problem being, I had ICS installed, not 4.1.1...

So after having flashed the insecured_kernel.img, my device only bootloops... I can't get it to boot back to bootloader, it just goes directly to the boot animation when I try...

I know the OP says not responsible for screw-ups like this, but I'm hoping someone can help me fix this...

While it is stuck on the boot-animation, i have access to adb to the device...

I can place it into apx mode by powering it on while holding volume up and volume down, however my computer can't install working apx drivers for it (tried manually using the acer drivers, and universal drivers as well)...

Is there a recovery method like copying something to the sd card and then turning the device on?

Any help at this point would be greatlyyyyyyyyy appreciated!

Edit:

Solved by getting into recovery holding power button, volume left (up), waiting for two vibes, and pressing volume down.
[Android Software/Hacking General [Developers Only]] bucegiomu:
We need WORKING tock_recovery.img and stock_kernel.img

Hi,

I am having the same problem.

ROM Developer, could you please put a link to a WORKING stock_recovery.img and stock_kernel.img so that we can unroot our A210 devices if we want to?
[Android Software/Hacking General [Developers Only]] S4ph1r:
Stock Roms:

GERMAN ROM EMEA

WORDWIDE ROM WW GE
[Android Software/Hacking General [Developers Only]] exeumc:
Is it possible to add new languages into the firmware after root install
[Android Software/Hacking General [Developers Only]] amynjimmy:
This work for all 210s correct

MB865/ATT/BMM

1. Stock 4.0.4

2. Miui

3. Kexec 4.2.2 (3/28)

6. ASOPA 4.2.2 (4/10)
[Android Software/Hacking General [Developers Only]] echone:
Hi all,

just a new Iconia a210 user.

Can i use this root method also with a linux box instead of windows?

thanks

Edit:

yes it works, now i'm root. Thank you
[Android Software/Hacking General [Developers Only]] jodiac:
help!!! Stuck at "Bootloader Version JB-3fb8d46 (Unlock Mode)"

I did everything upto the step 4, but at the end of this step, instead of rebooting I went to the recovery and installed my custom CM10.1 rom along with gapps.

After installing everything successfully I rebooted it. Then the Cynogenmod boot screen came but never finishes loading, then I remembered that I forgot to format the SD card. Which I did after rebooting again... Than when I again tried to install my CM10.1 rom it stopped and said error [status 7]. After rebooting again now I can't access recovery at all. Now im stuck at Unlock Mode screen. I've tried

but nothing happens, please someone help me!
[Android Software/Hacking General [Developers Only]] stratbrat:
Has anyone figured out the errors you get trying to unroot and going back to stock

First one is

adb shell rm /system/xbin/su

rm failed for /system/xbin/su, Read-only file system

second one

the boot failed menu after running the unroot commands

also couple of times It booted into usb protocol mode.

I really hope some one has a figured this out.

thankyou for replies
[Android Software/Hacking General [Developers Only]] stratbrat:
I got a little further now when trying to install stock rom it gives me an error 7.

any ideas?
[Android Software/Hacking General [Developers Only]] stratbrat:
Finally got it done you have to use the files That I noticed in the video.

use these tools

http://tegra3.ru//uploads/files/1355..._a210-root.zip

they are different than whats on the 1st page

then I noticed he used a different rom from the global sight

http://global-download.acer.com/Step...02&Category=OS

Pick the Acer.A210.AV051.RV05RC02.EMEA.	379.1 MB

then follow the unrooting commands or watch the video

http://www.youtube.com/watch?v=_nXH3rACCBk

then it works. You just have to change the language from german to where ever you are from.

I cant remember I think i had to turn the tablet off then use the button commands to get to the stock recovery. just follow video after getting the right files.

It finaly will work.
[Android Software/Hacking General [Developers Only]] jodiac:
Thank you, thank you, thank you very much!