yashsingh1/xdaforums huggingface dataset:
[Acer Iconia Tab A100] chicken choker:
I have the same exact problem on my acer, only i can get a stage further, after holding volume up and power, i get this: Bootloader version 0.03.06-ics (unlock mode)

Erasing cache before sd update...

Sd update cmd: recovery

--update_package=SDCARD: update.zip

Booting recovery kernel image,

Then i get the android man with the spinning blue thing in his stomach, it spins for a while the i get the dead android with red triangle. Ideas please?
[Acer Iconia Tab A100] aluminumfox:
Nobody's probably even looked at this thread in 2 years but I am unable to execute the install-eng.bat and get results. I can run as admin (windows 10 64 bit) and it will very briefly flash a command prompt screen but it goes away after a split second and then nothing on the tablet, nothing on my laptop, etc. Strange and frustrating. Am I just an idiot, am I missing something?
[Acer Iconia Tab A100] joe34:
Are you following Pio Masaki's guide? https://xdaforums.com/showthread.php?t=1711125

According to my notes, I rooted first before installing the unlocked bootloader. I used ZeroNull's Simple Root Method - http://xdaforums.com/showthread.php?t=1531646

Best of luck!
[Acer Iconia Tab A100] aluminumfox:
EDIT: I got it to work using Linux. Thanks!

I was following the guide, yeah. I was not able to get to a point where I could actually choose the unlock on the tablet's screen. I tried doing commands over adb but I could only get to a point where it would tell me something like "this is not supported in lock mode" or something like that. I am rooted properly but that's as far as I've gotten. Thanks for the reply, I'm surprised anyone is looking at this thread.
[Acer Iconia Tab A100] joe34:
Glad to hear you got it working.

Linux rocks!
[Acer Iconia Tab A100] bibob64:
Three years after the last message, I appeal to you to download the archive to unlock the bootloader. It's been two days that I've been searching on the web and I can't find anything. It would be nice from you. Thank you in advance.

Cordially.
[Acer Iconia Tab A100] kakemate:
Seems like the link its down, I'll be really thankful if u can put ir online again, since I look everywhere for that file and can't find it. Thanks a lot!
[Acer Iconia Tab A100] SGH-i200:
I will check which files I have in backup. But as far as I remember, I downloaded Custom ROMs.
[Acer Iconia Tab A100] webhook:
Hello is there still any bootlaoder unlock files for this device still? I have 2 A100s needing to root to a later android version and I keep hitting walls because the links are down.
[Acer Iconia Tab A100] linkrtx:
I'm the same, I recovered this tablet from the trash, I can't even find the file Acer_AV041_A100_1.012.00_WW_GEN1.

I found the way, root with iRoot and then install supersu
[Acer Iconia Tab A100] webhook:
Good sir, this is for the root only, this doesn't unlock the bootloader unfortunately.
[Acer Iconia Tab A100] masterpker2:
Boot into android and open super user and try updating the super user binaries from the wrench menu in the upper right corner of the app screen
[Acer Iconia Tab A100] ygthb:
close

I had to re-root, got to the screen, which is volume up, which is volume down. is the left rocker up or down.

Hate to be a noob, but if the crown fits

Success - while landscape, the left side of the rocker must be pushed untill the unlock is highlighted, then push the right side.
[Acer Iconia Tab A100] oneovakindoldys2:
On behalf of everyone here that has put alot of hard work into trying to crack this bootloader, we would like to say a sincere "Большое спасибо" THANK YOU! to ZeroNull and vdsirotkin at 4pda for this unlock!
[Acer Iconia Tab A100] utctigers:
I thought this was some kind of eff'ed up joke, good job

Can't wait on the rooms.......
[Acer Iconia Tab A100] pintek:
Tried this but i'm stuck at a green acer logo now an I'm now very confused
[Acer Iconia Tab A100] littleemp:
Essentially, if you want to do it manually if you missed the window of opportunity the first time:

-reboot into fastboot mode (adb reboot-bootloader or using Quick Boot from market)

-type in fastboot oem unlock

-Quickly press left volume key then right volume key. (when holding the device in landscape)

-type in fastboot reboot
[Acer Iconia Tab A100] pintek:
See I can't even get the tablet to load past the acer logo an i've tried rebooting it a few different ways an every time no dice... Can't even get it to install an update.zip it gets passed the clearing cache but thats it an i've cleared user data a few times already -_- I also didn't see any 2 icon come up when i ran the .bat...... Would it had mattered that i downgraded to HC from ICS?.....

As for ADB i'm so horrifically noobish at it i don't even know if i have it working or not on my linux mint machine (head desks)

Edit got it into Fastboot mode but I have no clue where to go from here........

another edit

Got it unlocked but still not going past the acer logo.... well its a step in the right direction i guess..... Recovery seams to not work still..... what am i doing wrong
[Acer Iconia Tab A100] FloatingFatMan:
^ The same seems to have happened here, too. (A101 device) :(

I followed the instructions precisely, but the device never got any further than the initial green, off-centre ACER logo. No icons, nothing.

How did you get into Fastboot mode?
[Acer Iconia Tab A100] pintek:
I got into fast boot by holding the volume rocker (*left* side in landscape) down an flicking the rotation lock button while powering it up but unfortunately even though I have the device now unlocked....It doesn't go past the offcenter acer screen does say up top "Bootloader Version 0.03.06-ICS (unlock mode)" in the top I'm wondering if it botched because I had downgraded back to HC before trying this >.<

edit

DAAAAH sorry its left rocker in landscape while moving the rotation lock sorry >.< why am i dont' this stuff late at night >.<
[Acer Iconia Tab A100] FloatingFatMan:
OK, got Fastboot mode.

Seeing as ADB is not accessible at the moment, can someone more expert in this let me know if running the following will put the A100 bootloader back? I'm not sure on my syntax.

fastboot flash /dev/block/mmcblk0p4 bootloader.blob.a100

ATTN: IF YOU HAVE THE SAME PROBLEM, DON'T RUN THE ABOVE UNTIL SOMEONE WITH MORE KNOWHOW CONFIRMS THE SYNTAX!!!
[Acer Iconia Tab A100] pintek:
Don't worry I'm not gonna even try anything else with fastboot until someone can give us a fairly safe route to fix our tablet. I really wish i could get it to run the update.zip but i'm afraid that i'll brick the tablet beyond recovery if the bootloader is using a different set of partitions that the standard firmware is running.... If someone could figure a way for us to fastboot flash cwm (fully functional cwm) I'd probably feel a hell of alot safer experimenting with fastboot fixes.
[Acer Iconia Tab A100] ZeroNull:
It doesn't work.

Fastboot work with: boot + recovery + system partition. Correct me, if it not so.

Try so:

fastboot flash recovery recovery.img

Get original recovery (from A100 ICS 009) in the attached files.
[Acer Iconia Tab A100] FloatingFatMan:
Thanks, unfortunately not quite there... Do you have the recovery from a A100/A101 Honeycomb ROM? My tab just won't boot with the ICS recovery.

EDIT: When I boot, I get text across the top identifying the ICS recovery, in unlock mode. The device itself just doesn't actually boot past this point (stock Homeycomb ROM, rooted). Would it be worth trying the CWM recovery in the other thread, or flashing the ICS leak to it, do you think?

I can live without 3G for now... Just want to be able to boot to an OS again! :p

EDIT2: The ICS ROM flashes successfully to the device and it's now working again, albeit without 3G.

Note: You will need to hold the buttons down UNTIL the screen displays a corrupted Acer logo. It'll then swap to the Android flashing animation.
[Acer Iconia Tab A100] ZeroNull:
Recovery from A100 HC (Acer_A100_1.008.05_COM_GEN1) in the attached files. Flash this image using fastboot, and if it works, you'll have to install A100 firmware first, and after that you can install A101 firmware.
[Acer Iconia Tab A100] oneovakindoldys2:
hello guys, i can confirm that [fastboot flash recovery recovery.img] from the a200 folder does flash successfully, however i cannot boot into cwm...no way...no how!! Dead androids are all i see...lol! i even went as far as doing a hard reset and completely re-installing ics rom and using zero's root method again and starting all over, however ....exactly the same thing...succesful recovery.img flash and no cwm......any expertise would be very helpful and much apreciated. thanks....p.s. a100
[Acer Iconia Tab A100] myster1ous:
See this thread for installing CWM.

http://xdaforums.com/showpost.php?p=23921740&postcount=17

I was having the same issue. Once you flash recovery don't reboot yet. Follow the steps in the thread.
[Acer Iconia Tab A100] ComRaider:
WOW!! Great work again guys. :)
[Acer Iconia Tab A100] pintek:
got my tablet working thanks for the a100 recovery image fixed it like a charm :D
[Acer Iconia Tab A100] cheeb:
Thanks to all who were involved in making this tablet turn into yet another exploited victim of xda development gurus. With that said, a sticky showing the process from installation of roms, to the rooting process, to the bootloader unlock process (which i'm sure is either already in the works or soon to be) needs to definitely go up. I will definitely be taking a stab at this latest goodness this weekend (eventhough I still hate ICS for its lack of compatibility with the games I enjoy playing)
[Acer Iconia Tab A100] samco08:
thx

hello.

First of all, enormous thank for your hard job ;)

I just tried the last version of the .bat file but nothing happend (in administrator mode) ?

moreover, i'm surprised for the new size of the file (only 2,5 Mb) !

The first one was 7,5 Mb ?

I'm on a wrong way :confused:

-----------------------------------

edit:

every thing worked fine !!

sorry for my previous post
[Acer Iconia Tab A100] cheeb:
With this bootloader unlocked...are we able to downgrade back to HB or do we have to stay on ICS?
[Acer Iconia Tab A100] BrothaJINC:
link is gone!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! please mirror
[Acer Iconia Tab A100] tomlogan1:
It's on the bottom of the first post.
[Acer Iconia Tab A100] ZeroNull:
Correcting.
[Acer Iconia Tab A100] ZeroNull:
It is possible. If you didn't change original ICS recovery, then simply reflashing as usual.

But for A101, at first reflashing in A100 firmware, then in A101 firmware. Otherwise there can be problems.
[Acer Iconia Tab A100] cheeb:
Ok...just so I understand you correctly, we CAN go back to HoneyComb if we want after unlocking the bootloader?

I haven't done anything yet...but I plan to upgrade to ICS from the first leak...then install the second leak...then root..then unlock bootloader....

I know installing the first leak then the second leak of ICS may be an unnecessary step but for some reason I feel "safe" doing it that way...

If want to go back to honeycomb (with everything said before) I should be fine?....(not sure how I would change original recovery?)

When you say change original ICS Recovery...do you mean changing it from ICS recovery to ClockWorkMod Recovery? If so, that will NOT allow you to downgrade back to Honeycomb?
[Acer Iconia Tab A100] smokku:
I didn't have any problems reflashing from A100_0.002.00_WW_GEN1 directly to A101_2.004.01_EMEA_GB.

Just did the hard reset and A101 was running just fine.
[Acer Iconia Tab A100] cheeb:
So with your bootloader unlocked in ICS you went back to HC on your A101....good to know..
[Acer Iconia Tab A100] ZeroNull:
I do not recommend. Already there is one case. Breaking recovery partition during such action. No root. There is no possibility reflashing.

Additional precaution won't be superfluous.
[Acer Iconia Tab A100] smokku:
No. From ICS with original bootloader. Rooted, but original bootloader.

I also recommend writing back the original A100 ICS bootloader before downgrade.

Bootloader is upgraded/downgraded by bootloader itself. And I wouldn't count that A200 bootloader is able to properly downgrade A100 bootloader.

There is an original A100 bootloader enclosed in the archive with A200 bootloader. And the script to write it back. Make sure to use it before downgrading to HC.
[Acer Iconia Tab A100] pintek:
I can verify atm that you cannot flash back to honeycomb with the bootloader unlocked. Just hangs at the screen distorted acer logo but if you have cwm installed you can do a restore back to ICS if you made one ahead of time before trying.
[Acer Iconia Tab A100] Vaste92:
Hi all!

I did it, I think. There's any way to understand if the bootloader is really unlocked?

Another question: there is still a recovery? Because I tried to get into the recovery, but it failed and I got somenthing similar to a system restoration during which I lost my root access. :confused:
[Acer Iconia Tab A100] peporras:
you have to install the recovery ClockworkMod must put up when you turn left (unlock mode)
[Acer Iconia Tab A100] SimonHtcDesire:
Hey,

If I mess this up can I restore my Tab?
[Acer Iconia Tab A100] smokku:
No. There is currently no known method of unbricking A100/A101.

So be very carefull.
[Acer Iconia Tab A100] sebennett:
On windows seven the script start but disappear immediatly and nothing run !

Also try on windows xp but can't get administrator rights...

I'm on the latest leak with root...

Any idea ?
[Acer Iconia Tab A100] toyface:
I tried this on Ubuntu 11.10, I run Linux exclusively, so you could download the Ubuntu 11.10 Live CD and try it on that, Linux has all adb drivers etc already there for ease of use.
[Acer Iconia Tab A100] FloatingFatMan:
Run it from a command prompt rather than double clicking. You'll see the error message then.
[Acer Iconia Tab A100] Euclid's Brother:
I moved this post because I felt it was more appropriate at in this other thread.

http://xdaforums.com/showthread.php?p=24113226#post24113226
[Acer Iconia Tab A100] YOUNGTWAN:
how to you lock the bootloader back so i can revert back to hc please i need help i have to send my tablet back the screen is unresponsive
[Acer Iconia Tab A100] .Gibson.:
All you have to do is flash an official ICS leak. So flash from zip in cwm and select one of the ICS leaks and your bootlloader will be restored.
[Acer Iconia Tab A100] YOUNGTWAN:
thats the problem when i get into cwm i cant select anything it jus sits there and i have to restart the tablet omg please help thats why i wanna do it thru fast boot

update: i managed to get it to restore a backup which its in the process of doing right now .. i guess i had to install su i didnt install busybox jus su will update when finished

update: ok the restore proccess hung at restoring system so i had to reboot .. i then tried to flash the leak ics and now im stuck at preparing to install rom ?? any ideas wats goin on guys??
[Acer Iconia Tab A100] BrothaJINC:
Has anyone fixed the recovery?? I keep getting android guy on his back... any help?????
[Acer Iconia Tab A100] Land Master:
Must be something in the water down there in the springs.. LOL

Seriously, there is nothing wrong with the recovery. It works fine.

Let me know what steps you have taken and I will try to help.
[Acer Iconia Tab A100] Land Master:
Sweet! For future reference next time just rename that file by adding a .bak to the end. Then if you ever wanted to return to Stock Recovery just remove the .bak and reboot..

Glad you got it sorted. Hit me up if ya ever have any more questions. Thats what neighbors are for. LOL. My Bro-in-law lives in the Springs.

Edit: btw... Better change your signature as at this point your A100 IS rooted.... If it's not you found a trick that no one else has..
[Acer Iconia Tab A100] pLaTiNiO:
Is there another method -without using the tablet's interface- for unlock the bootloader??? My A100 is bricked BUT is detected on windows via fastboot... locked... (The only thing I still can do with my tablet is to reboot, with the windows command prompt) ^^'

(Sorry for my english, I'm french.....)
[Acer Iconia Tab A100] smokku:
There is a guy claiming he has a working EUUs for A100 here: http://xdaforums.com/showthread.php?p=24077811#post24077811

I don't believe him, but you may try asking for it.

EUUs is a service tool, you should be able to restore your tablet to stock condition.
[Acer Iconia Tab A100] jrm2183:
I keep getting "canceled by user or timeout" message when I get to the screen to select unlock. Any one hae an idea or experienced this? I am rooted and am running the ICS leak.
[Acer Iconia Tab A100] Theonew:
You need to make the selection as soon as it comes up. Do not wait or else you'll get that error.
[Acer Iconia Tab A100] .Gibson.:
This also kept happening to me and then I realized I was pushing the wrong volume rocker. :D
[Acer Iconia Tab A100] Azrel37:
Same problem with timeout

I did have a problem with unlocking bootloader till I hit the volume UP key first to move it to the unlock position, then volume DOWN to accept...not sure why mine was backwards from what it's supposed to be, but I'm in recovery about to flash new Flex-Reaper :D
[Acer Iconia Tab A100] saraheba:
Mine is doing this too. It didn't allow even half a second to press the button, it immediately displays timeout or canceled. Tried quick boot, but it's hung up on fastboot USB download protocol.
[Acer Iconia Tab A100] yazyazoo:
What do I do?

My A100 is stuck. The volume down wont let me choose and volume up does nothing. It says fastboot is cancelled.

I plugged it into the power outlet and will wait until I know what I need to do.
[Acer Iconia Tab A100] yazyazoo:
I am now stuck at the Acer green logo with the words 'Bootloader Version 0.03.06-I (Unlock Mode).

I can't do anything. I tried to press vol up with power and it tries load something from the sdcard. It says something about update.zip from sdcard really quickly then goes to an android with a blue atom spinning in the belly trying to load up something.

It then shows a dead android. If I reboot it is stuck at the Green acer logo with the Bootloader Version0.03.06-ICS (Unlock Mode).

Can I load up something on my sdcard to flash the tablet. Can I rename the recovery.img to update.zip and put into my sdcard and have that reflash my A100?

Also my pc doesn't show any connection to the tablet

What to do?
[Acer Iconia Tab A100] Mordak:
Mine was also doing the same thing. In landscape view, push the left most volume rocker first. I had to do this about 6 times to get it to work. Very frustrating to say the least. However, perseverance prevails!!!
[Acer Iconia Tab A100] ptesmoke:
Yea its worded a little back ass wards...
[Acer Iconia Tab A100] gregb777:
The command line dissapeared when I went to reboot from fastboot! Now I cant reboot it. Stuck on "please reboot device to take effect"
[Acer Iconia Tab A100] cheeb:
You need to open a command prompt and navigate to your android adb folder and type

fastboot reboot-bootloader
[Acer Iconia Tab A100] ptesmoke:
also...ZN...the revert to a100 bootloader script results in a bricked device. dunno if u have a way out of it.
[Acer Iconia Tab A100] JustinFields95:
I did the directions in the OP and it's stuck at this screen with a green acer symbol and just sticks there. rebooted and everything a couple times. ADB doesn't recognize. HELP??
[Acer Iconia Tab A100] FloatingFatMan:
You can't boot Honeycomb with the ICS bootloader, it'll just bootloop. Put the leak ICS ROM update.zip on your card and restart into recovery; it should flash the ROM and boot into the OS.
[Acer Iconia Tab A100] JustinFields95:
Noob questions I know. But how do you get into recovery? No matter which combination I try it just stays at the acer symbol.

KANGED AOKP Showcase

Virtuous Prime ATP
[Acer Iconia Tab A100] tidewaterns:
Do you revert back to the stock bootloader the same way you unlock the bootloader?
[Acer Iconia Tab A100] niteh@wk:
Can you still boot and use it normally? Meaning you can get to the UI just fine? If you can, you may be still in luck to resurrect this. To use ZN's method to install the unlocked bootloader, your tablet must be first updated to ICS firmware and rooted. Eventhough this requirement is implicitly stated in step 1 in OP, I think ZN should emphasize this requirement a little more explicit :D.

Here's what I did with mine which was using the factory HC 3.2 ROM. Sorry if I repeat instructions but I thought this is helpful coming from my own experience going through these ordeals.

Assumptions:

* You have an external sd-card.

* Your PC still can recognize your tablet via ADB (the command "adb devices" shows your device in the list).

1. Download the leaked ICS ROM (http://xdaforums.com/showthread.php?t=1510706)

2. Rename it update.zip and move it to the root of your external sd-card. Make sure the sd-card is inserted into the sd-card slot

3. Power off your tablet

4. Reboot into recovery by holding down the Power button and the volume down key (volume down is toward the lock/unlock slider)

5. Keep holding both buttons until it boots into recovery with a green Android with moving gears appear, you can then release both buttons

6. It should now recognize the update.zip and start to install it

7. When done, it will reboot automatically into the normal UI

8. Your tablet should be now updated to ICS

9. You will notice that you now lose root access, but don't worry.

10. Follow these instructions from ZN to root it (http://xdaforums.com/showthread.php?t=1531646)

11. Follow the instructions in OP of this thread to install the bootloader.

*** Remember when it asks to exit or unlock with the two icons : unlocked padlock and the exit door, press the volume down button first (to the left toward the slider) until the padlock is highlighted, then press volume up (to the right) to select it.

Best of luck to you!!
[Acer Iconia Tab A100] JustinFields95:
No sir I cannot get into the UI

It just hangs at the green acer logo, when I try to put it into recovery it just sits there hanging at booting recovery image.

And my computer does not recognize the tablet in any way.

KANGED AOKP Showcase

Virtuous Prime ATP
[Acer Iconia Tab A100] niteh@wk:
Bootloader is separate from Recovery. You should be able to boot into Recovery. Did you by any chance install the Recovery from the PlayStore app before? It looks like your Recovery is borked. Do you see the Android with the exclaimation when you try to boot into Recovery?
[Acer Iconia Tab A100] JustinFields95:
I do not see it. The bootloader just hangs at trying to start recovery. And no I didn't try to install the recovery from the play store.

EDIT...

This is a what it looks like when I try to get into recovery.

Erasing cache before SD update...

SD update cmd: recovery

--update_package=SDCARD:update.zip

Booting recovery kernel image

Then it just stays there.

KANGED AOKP Showcase

Virtuous Prime ATP
[Acer Iconia Tab A100] plznote:
EDIT: nvm, my own stupidity.

Found out the solution. :P
[Acer Iconia Tab A100] aishaz:
I have seen this question before but it isn't answered... How can I go back to the locked bootloader? i need it to take my tablet to the technical support, right? thanks

---------- Post added at 03:43 PM ---------- Previous post was at 02:57 PM ----------

I have flashed the official stock ICS, now it seems not to be unlocked, and i'm not root anymore, has CWM dissapeared too? Now can I take this to technical support with correct guarantee?
[Acer Iconia Tab A100] IRIE4IPIER:
my a100 says: Bootloader v0.03.06-ICS(Unlockmode): Starting Fastboot USB Protocol.

And it stays there, stuck, what now?
[Acer Iconia Tab A100] niteh@wk:
a little more info please.. did you try to boot normally and this showed or did you try to boot into bootloader (fastboot) mode?

this is fastboot mode where you can connect to the PC and issue adb and fastboot commands such as flash a recovery image.
[Acer Iconia Tab A100] sightes:
hi , with that metod , can i install ubuntus or linux on my icon a100? using flassh or usb ?
[Acer Iconia Tab A100] sachadesousa:
bricked

so after upgrading the bootloader, everything was fine... i accidently went into recovery mode and reflashed ics stock rom and its now stuck at "bootloader Version 0.03.06-ICS (Unlock Mode)" and i cant get it to boot...

any ideas?