yashsingh1/xdaforums huggingface dataset:
[Acer Iconia A500] Raptor.X:
Thanks for the answer. But concerning the other method using nvFlash, I have another problem. It displays this screen:

The first thing that came to my thought is: "Hell, that thing asks to delete a recovery system file! No way! I'm not trying!".

Is that normal? If so, you wouldn't mind updating the tutorial?

Thank you.

Edit: By the way, how to avoid at a 100% chance having partition error issues with either Blackthun3er's or nvFlash?
[Acer Iconia A500] dibb_nz:
The recovery from boot.p file overwrites the custom recovery with stock. The current root tools delete this automatically now. Shall put a note in the guide 4 others like u who actually take the time 2 read things first....:thumbup:

Edit: unfortunately there's no way I know of to avoid format errors.some tabs are affected , most aren't.
[Acer Iconia A500] Goober22:
I am a little confused. The cpuid a should be 16 char right? What I see in the uid file is 17 char and I can't create a sbk from the website with it. Any ideas?
[Acer Iconia A500] dibb_nz:
Yr uid is correct as long as its not 13 chars yr all good.

Check OP in bootloader thread 4 new sbk tool vache is having troubs with the website

LINUX Fans have not been forgotten lcd047 has this for you guys!!
[Acer Iconia A500] blackthund3r:
Hmm. All CPUIDs I've encountered have been 15 or 16 characters. Could you post your CPUID? I'll try running it through the backend manually and I'll let you know if I get a working result :)

---------- Post added at 08:26 AM ---------- Previous post was at 08:23 AM ----------

Yeah screw dot.tk =/ they suspended me and I don't even know why! Apparently I triggered some sort of check and I ended up on the phone (at their request :L) to Kaspersky Labs who basically thought I was crazy! :P They were nice people though :P

Anyway back on topic, I have put all useful info at http://a500bootloaderflash.tk now. And all the bundle market repos have been moved over to my blackthund3r.co.uk domain for longevity (I did another 2 year renew on that a couple of months ago :D)

---------- Post added at 08:29 AM ---------- Previous post was at 08:26 AM ----------

It's actually not as scary as it sounds getting rid of that file, thank goodness :D

Quick note - only my ICS Root removes the recovery-from-boot.p file automatically (you can tell it not to if you plan to keep the stock recovery for whatever reason). ZeroNull's tool has never been updated and so doesn't have this feature included.

---------- Post added at 08:30 AM ---------- Previous post was at 08:29 AM ----------

That perl script is the backend for my SBK generation site :P it's great code :D

---------- Post added at 08:34 AM ---------- Previous post was at 08:30 AM ----------

I do recommend dumping the BCT but if you get an error like that could I please have a screenshot and if possible a copy of the text inside the error window? Then I can find the issue. It's possible that the code doesn't work on the Honeycomb bootloader which is bizarre. Also I'll note that the tablet must be rooted with busybox installed for this to work. ICS Root does this for you.
[Acer Iconia A500] dibb_nz:
thanks for that BT nice to have that all cleared up...

re 17 chars, he never said how he got his cpuid so he may be including the zero and 'x' - that would make 17??

i regarded zeros root as a manual method rather than a tool, so i'll clarify the guide a bit over the weekend, cheers!
[Acer Iconia A500] blackthund3r:
Okay that makes sense. You could even end up with an 18 character CPUID that way xD so yeah NEVER use 0x UNLESS you're using EUU ;P

And sure ok but we all know which tool is the coolest ;) lol
[Acer Iconia A500] dibb_nz:
oh m8....just the man i need..hehehe

used civs nvflash to rollback to HC just got myself stuck for the last few hours in apx ... again:(

with nvflash when u run the bat file after putting it into apx (manually or via a500 manager) it installs the picasso drivers - these are the HC ones yes - no???? if u carry on it gets stuck formatting...if you;re lucky you still gotta system and recovery to boot into - if not you're stuck in apx - no boot, no recovery....couldnt force acer boot/recovery drivers to load which i figured i'd need cos i'm running ics...once i get recovery and hc rom flashed isnt that when i need the hc drivers???? its driving me crazy it shouldn't be this difficult to roll back should it.... any help u can provide i'd be muchly grateful....

I'm actually trying to help out a couple other folks - i can kang my way out but i cant expect them to do the same...there has to be a definitive answer....doesn't there???? pls say yes, lol!!!!
[Acer Iconia A500] Goober22:
Yes, I was including 0x. So for the SBK you don't use 0x? My CPUID is 0x037c620944403057 (exactly how it is shown by clockwork mod)

I need to get my SBK so I can get the V8 boot loader.
[Acer Iconia A500] dibb_nz:
Yup that's right m8 - drop the 0x
[Acer Iconia A500] CanuckinPA:
I'm am at a loss as to how to recover my CPUID. I have BlackThunder's A500 Manager on my desktop. When I click on 'Get Serial Number' it starts ADB Server, then kills it -- but WHERE IS THE SERIAL NUMBER???? :( Is it supposed to show up on the line below with the flashing cursor???

This is getting very, very frustrating.
[Acer Iconia A500] dibb_nz:
If it's not showing then there's a communication problem between yr tab and pc. You must have both sets of drivers installed "correctly"...see the OP on what to d/l and how to install.

Disconnect and reboot....

Try a different micro usb cable...even aanother pc if u have one.

Have u tried running 'adb devices' from command prompt, does a number show up here??

Do u still have a working system??? U can get yr uid using terminal app. Reboot before u run it...

Are u positive u don't have an old nandroid backup stashed somewhere???
[Acer Iconia A500] CanuckinPA:
Used a different cable - same result

Yes - no result there

Still have a working system. Tried getting uid using terminal app. See the attachment for the results. The uid # is only 5 digits

Did a backup using CWM, but I can't find it anywhere so I'm not sure it actually backed up.
[Acer Iconia A500] metalmenance:
mine has been on the flashing bootloader stage 2

for about an hour now

can i start over or what step to take next???
[Acer Iconia A500] dibb_nz:
How are u getting on?

I had a reply tapped out dunno where it went???sorry...

EDIT: Found the original and have posted it

Go back....uninstall the acer drivers

Disconnect yr cable

Reboot tab and PC

Install the drivers as per the guide

Yes thats right....you wont get any result until the drivers are installed correctly!!!!

go to the cpuid thread, theres a thumbnail of what what to look for in "dmesg"- there are half a dozen methods of getting yr cpuid you can try - if u have ubuntu then use that

On yr external sd normally, cwm>backup>your_backup>uid.txt

What version cwm do you have - some of them show yr UUID on the recovery menu home screen - on 1.7.2 "CPU UUID 0x0............"

Take a look at eppeP's method, gets yr uid with apx mode

or revert to HC with this No uid needed this uses an official stock update.zip.
[Acer Iconia A500] celtichazard:
Apx restart

When i try to put the tab on APX mode my pc sounds when i enter but when i remove the clip from the reset button the tab restart and the APX mode loose...

any ideas i cant find any info... how to resurect my tab... i cant find the cpu id becauce my tab dot boot only acer logo appears and then restart in a never ends
[Acer Iconia A500] dibb_nz:
yes it can be difficult to get into apx mode but once you get the idea, then its easy as!!

Press and hold the pin in the reset hole,

Press and hold the power button

once the power light comes on count 3 or 4 secs then release the pin.

A second later release the power button

of course you could also use blackthund3rs apxFlash tool/a500 manager to put your tab in apx mode for you....
[Acer Iconia A500] psycho_somatic:
2 hours and i finally got my tablet working again .... thanks very much :)

one thing i think should be pointed out though is (4) From a uid.txt in any Honeycomb-cwm backup in external_sd/clockworkmod/backup/"your_HC_backup" folder

that uid.txt format from the backup is 0x037c620441dfb197 and it should be pointed out that you remove 0x0 bit for a CPUID code of 37c620441dfb197 just a little thing that would have saved me some time...
[Acer Iconia A500] dbaps:
Thank You

For some reason I could never get the Acer Recovery tool to allow me to install an image. The option was always greyed out, even after I installed Busybox several times. I also tried Busybox Pro and still no luck. I kept flashing thinking I was doing the install wrong but could never get it to work.

THANK YOU!!! Even though this was challenging for a newbie like me, your instructions made it a lot easier. This was the one URL that really helped me. Donation coming!!! The only issue I had was having to manually turn on the power.

Paul
[Acer Iconia A500] dibb_nz:
OK will be sure to make that a bit clearer...glad things worked out for u:)
[Acer Iconia A500] dibb_nz:
thanks:)

re: Acer recovery installer....not sure why this is....once u have the unlocked bootloader it should work fine, wot rom u on, not that that should make any difference....anyway its just as easy to fastboot a recovery these days....u have other worries feel free to ask

rgds dibb:)
[Acer Iconia A500] samaliset:
Still bricked

Hello dear,

I see that some of were luckt to get back their A500 to work which is not my case yet.

This is my friend device, he was playing a stream on it and suddenly went black. Since few days I was trying to help him (I had an the same device and some sort of same prob before) but could not succeed.

I used USDeview to verify if the device can be connected to my Windows XP system. I found 4 lines corresponding to Acer A500 2 of them had SN like that:

37c6185425f3197

37c618642008097

I used both of them respectivly to get the SBK which had been done successfuly.

I used several tools hopping that I would unbrick the device, such as: Afterota v1_01, A500Manager, DotNetDetecter, A500APXFlash, A500APXFlashBundle Builder, but non of them could help. As if it appears the Device is not connected.

I don't where to go from here and I realy need a hand.

Many thanks
[Acer Iconia A500] dibb_nz:
Of the tools are saying this then usually the drivers are at fault....did u install both sets of drivers as the guide stated?

Dotnetdetecter..exe, can u enter yr cpuid with this, does the tab enter 'acer download mode '

do u have an apx device listed in hardware and printers? ?

Is the acer Picasso driver showing in 'safely remove hardware?

These are all driver issues,reinstall them.

U say the tab screen is black,is the power light on too?

Can u boot the tab,?

If this is the case then you're stuck in apx mode which is near impossible to recover from and if it's hardware related it will require a new motherboard.....
[Acer Iconia A500] samaliset:
Thank you for your help.

I'll try to answer your questions as follow:

did u install both sets of drivers as the guide stated? = Yes I think

Dotnetdetecter..exe, can u enter yr cpuid with this, does the tab enter 'acer download mode ' = It gets stuck at about 10% progress

do u have an apx device listed in hardware and printers? ? = How can I get that and from

Is the acer Picasso driver showing in 'safely remove hardware? = how to check

These are all driver issues,reinstall them. = do you mean USB drivers = yes

U say the tab screen is black,is the power light on too? = I can switch the Tab on/off but I have the message "Boot verified failed" but when I use the Reset + Power the screen goes black and the power light is on

Can u boot the tab,? = yes, but always I get the message "Boot verified failed" with the big ACER logo in the middle.

I hope you can give me some guide (knowing I am not expert) please.

Thanks again

I just performed further tests and I get some answers.

- Dotnetdetecter, it gives me a message that the Tab is not connected.

- I found out the Hardware /Printer, when checking the USB devices, click right I get the Windows device with APX icon at the 3rd raw.
[Acer Iconia A500] dibb_nz:
ok...theres alot going on here but first of all. if the flash fails with the apx device listed then I'm not sure if we can get your tab up and running....

if dotnetdetector says your tab is not connected this is definitely a driver issue....you need both Acer and android sdk drivers. there is a zip in the bottom of the Original Post adb_fast.zip - did you install these??? There is no point going any further until you get the dotnet to recognise the tab....

If you did, then UNINSTALL them, reboot - attach your micro usb cable to your pc - and windows should install them again.

if everything is good up to this point, then...

Disconnect the cable,

(with your tab OFF) run dotnetdetector:

do not connect the micro usb cable!!!

Wait for the EUU to "scan for newer image" - this will take a good 10 mins -

a window will pop up saying it cannot detect your tab and give you instructions for "manual apx mode",

please go ahead and use the buttons to enter apx mode....hopefully the tab will vibrate to let u know its in apx.....

the screen should be black and the power led light is on....

Now, connect the tab to the pc with your micro usb cable....

open device manager on your PC - look under "USB Controllers" you should see the acer boot recovery driver or something acer related listed here...if not then you need to reinstall the drivers again....you might have to go thru this 3-4 times!!!!

Ok the next thing to check is that your tab has entered "acer download mode" and then continue with the EUU flash....

Be aware your tabs problem will NOT be easy to fix, u may have to go thru this 8 or 9 times until something finally works.....

If the dotnetdetector (EUU) method just will not work we can try a manual nvFlash method...

OH, a 'real' hard reset often can work miracles!!!! Here's how:

Try using hard reset:

1) Turn off your tablet,

2) Rotation lock to your left;

3) Press Vol+ (closest to rotation lock) and power on simultaneously

4) As soon as the tablet vibrates you can release the power on button and you should start to switch rotation lock left and right till you see

Erasing Userdata...

Erasing Cache...

Vol+ is still pressed;

5) The tablet starts to format

6) Your tablet will be as clean as it can be.

U need to see on the tab display

"Erasing Userdata...

Erasing Cache... if you don't see these words can you tell me what does happen...

I would try this first and then run dotnetdetector!!

I hope you understand all of this, just ask if anything is not clear to you...good luck

dibb
[Acer Iconia A500] samaliset:
Good morning dibb,

Oh great and patient you are. I'll follow strictly your recommendations, which I did understand well and I'll let you know with all my thanks.

Edit. I started your point (3) several times and at (now) the Tab is standing on the following message :

"Bootloader v0.3.12-ics: starting Fastboot USB download prrotocol"

I connected the tab to my PC and happily the it displayed the message "New device is now connected". Is this good news for me?

Where I shall go from there?

Thanks again for your help

Re-Edit: I couldn't wait, I tried "dotnetdetector" which keep saying, your tab is not connected, and tried too "A500APXFlash" and did not succeed neither.,

A lttle update if that can help:

- With the paper-clip and power (3) seconds, I could put the Tav into boot-recovery (added in the PC Device Manager after connection).

- In the USBDeview, there is are several lines only one line (Acer Picasso USB Boot-recovery driver), shows Connected, but it doesn't have Serial Nbre, it has an Instance ID: (USB\Vid_0955&Pid_7820\5&e50db94&0&4).

- The "dotnetdetector" utility runs a while then it asks to connect the USB cable. After that there is a rectangle, I suppose that needs to be filled. I put the Tab UID (I am not sure it is the right one, becouse the progress goes for ever.

Any one out there I really need helps....

Last update:

Just to inform you that I finally succeeded to recover the Tab with a bacup.zip ROm found some where here on the forum.

Anyway, many thanks for the help.
[Acer Iconia A500] ameer1234567890:
When I try "cat /sys/firmware/fuse/acer_cpuid" at Terminal Emulator, the tab freezes? Any idea why?
[Acer Iconia A500] dibb_nz:
I've	always used a file explorer to navigate there..

Using terminal u should find it by running one of the dmesg commands after a reboot
[Acer Iconia A500] Mlopik:
I have problem.. :(

I used this guide. I have rooted Iconia a500 (via this), SDK USB Drivers, Acer USB Drivers. And I can't connect to APX Mode. Screen goes off, but no LED...

Please help me! :( :( :crying:
[Acer Iconia A500] dibb_nz:
sorry, ive only just seen yr post....have u got sorted yet?
[Acer Iconia A500] Cpt_Chaos:
Thanks for the tip to find my CPU ID

I just wanted to shout out a thanks for the tip (2) Retrieve your CPUID from your Tab using Terminal Emulator from the market

It worked like a charm. And when combine with the following thread, http://xdaforums.com/showthread.php?t=1810618, I now have my CPUID and SDK.

Thanks!!!!!
[Acer Iconia A500] BinaryEclipse:
Hey, I've been trying to get a custom rom on my a500. I've been having difficulties getting past the beggining stuff - flashing the bootloader. The tab is currently on 4.0.3, and I'm sure I got the drivers I needed to get, but in APX mode, nothing comes up in my system tray. When getting the drivers from the Acer site, I noticed nothing under the ICS version - I wasn't sure if that was important or not, but that got me thinking that maybe I have to downgrade to HC first? Does flashing the bootloader not work from ICS stock? or am I trying the wrong bootloaders? (I've tried the V8 blue and green, V7, and V6 from http://skrilax.droid-developers.org/a500/nvflash/images/ )
[Acer Iconia A500] dibb_nz:
There are two sets of drivers needed

This from the OP:

Acer Support for Acer APX/Fastboot/Recovery Drivers

Android SDK for the adb/USB drivers - You can d/l a mini zip containing just the adb and fastboot drivers attached to this post] "adb_fast.zip"

Try another micro USB cable too

No you should not need to downgrade....

Just be sure to follow ALL the steps in the specified order and you should be good

dibb
[Acer Iconia A500] aDigitalPhantom:
I am wondering if the uid is the same as the cpuid? i ask because when my n7's battery went flat, and i charged the battery via usb2battery there was a uid sticker under the back cover.

edit: someone linked me here from the n7 forum and i did not notice it.....
[Acer Iconia A500] dwind:
Major thanks to the xda brethren. Especially dibb_nz, Vache, Jasto, Civato, Scrilax,eppeP, blacthund3r, Moscow Desire, and Timmydeans. I have snatched another A500 out of the jaws of despair. It looked like the tab had a motherboard failure, but before I gave up I just hunkered down, read some more and hit it with all the tools and techniques from the techiens here. Finally raised the tab back to HC this morning. I was getting the can't read Sdcard error but then was getting funky reads on the internal memory as well. Thanks again folks. Want to also shout out JazzyJ and Srbeen. It takes a village to raise a unruly A500 :D
[Acer Iconia A500] dibb_nz:
Wow thanx:) Pleased it all worked for u. I am no techie or dev just a normal user with lottsa 'experience' unbricking lol...but yes this is a fantastically helpful community and comments like yours make it all worthwhile:)

regards dibb
[Acer Iconia A500] deankk:
deleted

deleted
[Acer Iconia A500] Pustiu314p:
does anyone know if CPUID can be found inside the tablet? something like in this picture?
[Acer Iconia A500] dibb_nz:
We wish!!! There's a serial number on the box and the sdcard cover unfortunately though not the one we need for the sbk:(
[Acer Iconia A500] Pustiu314p:
So bad, I was about to unfold to see what I find inside. However we should find a way to find old CPUID for that devices
[Acer Iconia A500] dibb_nz:
If you have had the tab connected to a pc some time in the past, use usbdeview method, else ubuntu
[Acer Iconia A500] Pustiu314p:
I have the CPUID but is not working, I explained a bit here http://xdaforums.com/showpost.php?p=50088566&postcount=21
[Acer Iconia A500] dibb_nz:
Do u have an a500/501?
[Acer Iconia A500] Pustiu314p:
No, I have a A100
[Acer Iconia A500] Zakariasz:
Not working to me

At least automatic method doesn't work for me at all but I have done it by manual method !
[Acer Iconia A500] Moscow Desire:
Folks, just a little info on CPUID.

The UID number can, and often will change when going from 3.0.x, 3.2.x up to ICS. It happens often, and generally will give the same code for both. Sometimes, after several flashings, the UID number can stop changing.

What will not change, is the SBK number. This stays constant. So you may always NVFlash.

I've used the same UID generated by an ICS install, to flash EUUS Roms, both 3.2.1 and 3.0.1.
[Acer Iconia A500] TheRock40359:
i am new at rooting this acer. i root samsung phones and tablets. this tutorial is very confusing. i downloaded the tool i do not see terminal emulator in the tool. what do i do after i download the tool or where is the terminal emulator
[Acer Iconia A500] dibb_nz:
Tbh mate, I'd be giving it a miss...it's just not worth the time and effort required, to have a tab running ics.. That's like 4 builds ago...cave man days ... Go buy a cheap 100$ tab...it'll out run the a500 10-1....probably 1000-1.

If your tab isn't powering up to an OS term emul. not gonna help u anyway..

If it's not booting AND you don't have the cpuid... Like I said, go buy a new one

The Acer is not like any other device you have rooted...it's way complicated...if u think the tutorial is confusing, wait till u gotta install Linux and run scripts..that's a heap of fun!!
[Acer Iconia A500] TheRock40359:
tab is running i am just trying to root it and install omnirom 5.1
[Acer Iconia A500] dibb_nz:
Got custom recovery?

Running stock? Hc or ics...2 different processes needed to root

If on hc need upgrade...don't flash ics/jb rom to Hc

You don't give a lot of info...

The guide gives u everything u need to know

Start at beginning

Each method, follows a definite order...

depending where yr tab is at, an what u have available to u...

No pc or laptop for adb then use term app download play store

Is bootloader unlocked? Can't root without it..

On hc?...tdv4 will root an install ul bootloader....

If u want help...need to know everything...then can tell u best move

This is all just to get to stage to install rom

If u brick while doing it....that's a whole new drama..

Check guides in my sig...everything u need to know is in them
[Acer Iconia A500] dibb_nz:
One last thing....

The last post here was 2 yrs ago

The Acer is nearly 6 years old
[Acer Iconia A500] TheRock40359:
I am on HC 3.2.1. I am gen 2. I downloaded stock ics from acer website. IT'S a gen 1 and I'm on stock recovery. CAN'T get the ics to install. I renamed it to update.zip, put it on sd card and rebooted tablet to recovery and it doesn't install. I do have computer with adb installed.