yashsingh1/xdaforums huggingface dataset:
[Acer Iconia Tab A100] pio_masaki:
Not sure if you were responded to directly, but that brick is EXACTLY what the emmc brick is. The final stage is stuck in APX mode, which is what yours is doing. It starts, to a point, but its in such a low level mode that the screen doesn't even turn on, the only signs is the power light going blue and the home button lighting up. The other stages, which I'm guessing is what you think is the normal emmc brick, is only the stages leading to the APX mode, it's like a failsafe to flash and restore the device.

So, it's usually something like this:

Device freezes, or reboots, or nothing at all happens

Device will not start, either hangs at boot animation, or Acer splash screen

If a custom recovery is installed, it will fail to mount /data or /cache or any other partitions

If stock recovery is installed, it will fail to mount /cache or /sdcard

After enough tries, the system eventually faults to APX mode and will remain there forever until its repaired, if its even possible to.

It can and does skip any or all stages and goes directly to APX mode in the blink of an eye, other's stay out of APX mode and still make it to the splash screen or even boot animations before halting. Mine froze, lost partitions, then went into APX mode all within like 20 minutes.

Edit: you edited while I was typing lol. The cause is Acer chose a buggy EMMC module, it will randomly corrupt or make unusable the EMMC memory, as far as I could trace it lost the GPT. Its all in the first posts.
[Acer Iconia Tab A100] trevor7428:
Oh wow! I haven't kept in touch with this issue much since my a100 has been dead for Awhile and have bought two different tablets since. But I didn't know this was the end result. Lol I didn't think I applied cause I never had any issue with partitions or couldn't flash. But thank for the info. Good to know. I'm supprised the a100 thread is still alive. You'd think everyone's tab died by now lol.
[Acer Iconia Tab A100] Hadriel18:
Like an idiot I managed to lock the bootloader after installing a custom recovery and firmware, so my device has been a nifty paperweight for several months (out of warranty). So I'm wondering if all that needs replacing would be the motherboard, or is there anything else that needs replacing along with it?
[Acer Iconia Tab A100] pio_masaki:
Just the motherboard unless anything else is damaged in some way. For what you describe its just the mobo.
[Acer Iconia Tab A100] spartn1:
Just got tablet back from Acer

Just got our tablet back from Acer. Out of warranty since January but they did the repair anyway free of charge. Came back with ICS on ie 4.0.3. Now will investigate easiest current method of root and best rom.
[Acer Iconia Tab A100] learnmore:
Thanks for reporting back... is there any secret to getting an out-of-warranty repair? I bought mine refurbished from "1saleaday.com" so I don't believe I ever had an actual warranty through Acer. It worked wonderfully for about a year and then their lemon of a EMMC decided it was time... I still feel like Acer should own up to this problem!
[Acer Iconia Tab A100] das_webos_transformer:
Tell them you bought it less than a year ago.
[Acer Iconia Tab A100] spartn1:
I started a chat with technical support and after they tried to fix my problem with a couple restarts they opened up a ticket for free repair. Worth a shot. Mine was under warranty through Acer but it ended in January. They still fixed it for free and it works good as new now.
[Acer Iconia Tab A100] DJ_SpaRky:
Well, I've got a bricked device, long story short it was sold and then bricked, then was asked to unbrick it. So here goes:

Device was drained to the point it died, then sat for 2-3 weeks, then charged until the light changed to blue, now it will not boot.

Power light (blue) comes on but nothing else. No vibrate, nothing on screen. With or without mSD Card inserted. Cannot access Recovery or Download mode. Have done "Reset" and have unplugged battery for 10mins+.

Plugged in to computer to reflash or run ADB commands (dmesg, etc), reads as "APX" but never finds the driver. I installed a "Naked APX" Driver and it detects as "Asus Transformer APX Device", but ADB never sees the device.

Where to go from here??
[Acer Iconia Tab A100] pio_masaki:
It goes to Acer or gets a replacement motherboard, it's been discussed a few times here, once it hits APX mode its done, no repair possible at this time.

Tapatalked from my HTC DNA - Carbon
[Acer Iconia Tab A100] DJ_SpaRky:
Well, then, OK, Thanks. I wasn't sure if there was anything else I could do for the device, but it looks like it will get parted out and sold on Amazon or eBay.

(Sorry if that sounded unappreciative and sarcastic, it was not meant to be. Sincerely thank you.)
[Acer Iconia Tab A100] Abdulmk:
I purchased a chinese tablet Ampe A85 and root it with one click root and rooted successfully but after having CWM recovery i am facing problems when i reboot to recovery it show me some error:

E: Can't mount /cache/recovery/command

E: Can't mount /cache/recovery/log

E: Can't open /cache/recovery/log

E: Can't mount /cache/recovery/last_log

E: Can't open /cache/recovery/last_log

I m not able to reboot in normal mode i cant wipe data cant do any thing even i can not connect it with pc any solution for this problem Thanks In Advance
[Acer Iconia Tab A100] pio_masaki:
So you mean you used an a100 tool to root then used an a100 recovery on your non a100 device? The partition tables are likely not the same which will cause those issues.

Tapatalked from my HTC DNA - Akakaze
[Acer Iconia Tab A100] pirate.brian:
I didnt see it posted, but I may have missed it. Has any thought been given to whether it could be an issue with only Gen1 devices? Or has it affected both Gen1 and Gen2 devices?
[Acer Iconia Tab A100] jherbold:
I thought I would add my experience to this discussion. My A100 had unlocked boot loader, TWRP, KebbersRom. It died while restoring a nandroid, and showed the classic EMMC failure symptoms. This tablet was LONG out of warranty.

I opened a ticket at ACER. In it I mentioned the EMMC failure was well documented. I got back a warranty repair denied message with a phone number to call if I needed further information.

I called that number and after some discussion with the agent, she opened a new ticket for a free repair. I got the RMA tag via email. Sent in the tablet, waited about a week, and it came back fully functional.

Since it is more of a backup device now, I've left it fully stock, just the way they returned it to me.
[Acer Iconia Tab A100] pio_masaki:
Happens to all, mine was gen2 iirc. The real test is figure out the emmc chip version, if its the same as the rest then it'll still eventually fail. The got brickbug app will tell you which you have.
[Acer Iconia Tab A100] pirate.brian:
thanks pio! I only said Gen1 because that is what I have. I didnt see anyone mention it affecting one gen specifically, nor did I see anyone mention it affecting both. so of course, I had to ask... sometimes it is the simplest things that get overlooked. I thought maybe there was a chance that Acer caught the bad emmc chip previously and released Gen2 devices with a better emmc.

On a happy note: I mentioned the issue on Acer's facebook page and said that I wasnt going to pay for a repair when it was a faulty emmc chip... they sent me a message asking for details and offered to fix my tablet for free! I sent it in last week and just got an email saying it had been repaired and is scheduled to arrive Monday via FedEx. I wonder if they repaired my old tablet, or if they just sent a new one... I guess I will have to wait until Monday to find out!

Once it arrives, if there is ANYTHING I can do to help please let me know. The xda community has helped me in more ways than I can count, so I'm happy to return the favor! I'm not afraid to tear the thing apart and dig around and I am in no hurry to turn it on and start customizing, so if a dd backup of a factory install (or anything else for that matter) would help, don't hesitate to ask!
[Acer Iconia Tab A100] pio_masaki:
Usually they replace the board and return your tablet. Glad it worked out for you!
[Acer Iconia Tab A100] Phatboyj420:
? for pio_masaki or anyone else knowledgable

pio_masaki or anyone else knowledgable,

What might this tool be used for I noticed some reference within about sbk but I don't know how to dig much further the .zip password is simply acer

http://www.imeiserver.org/download/...CER/Tools/&file=acer_Download_Tool_V2.017.zip

also this tool just out of curiosity:

http://www.imeiserver.org/download/index.php?dir=Flash Files /ACER/Tools/&file=UnzipAcerBin.zip

Both tools found here:

http://www.imeiserver.org/download/index.php?dir=Flash Files /ACER/Tools/

Edit: I was digging around in the latest stock ICS 1.049.00_PA_CUS1

and found a file in the /proc folder called "cmdline" in this file is a android boot serial number it might be worth looking into as relative to our SBK

Thanks in advance, as always I greatly value your input

Fell free to PM
[Acer Iconia Tab A100] oneglory:
HELP! I'm stuck on the rolling "android" logo.

I was stock then i rooted (zeronull), unlocked the bootloader (zeronull) and loaded up the CM10 jellybean rom via http://xdaforums.com/showthread.php?t=1890700.

Everything was fine and dandy until I had a mishap with my GPS antenna. http://xdaforums.com/showthread.php?t=2534775

I tried to return back to stock (locked bootloader, no root and the stock ICS) via http://xdaforums.com/showthread.php?t=1968807. At first i was getting the RED ! android but it turned out being an incomplete ROM download which i corrected. I returned to CWM and stock recovery a couple times (back and forth) during this issue but was finally able to flash the stock recovery and the stock ICS from that thread. Now I'm just stuck on the rolling Android logo. Am I bricked?

1. I hope I'm not bricked because I'd rather not have to buy another part (main board)

2. I hope the stock ICS will fix my no satellites GPS issue.

3. god im awful at software.
[Acer Iconia Tab A100] chicinwang:
Sooo you tried going back stock by flashing the stock firmware?

You didn't do a backup of stock files before flashing a custom ROM?

Sent from my SCH-R760X
[Acer Iconia Tab A100] pio_masaki:
Do a forced factory reset, power off then hold volume down, as the screen comes on flip the lock switch a few times, it'll reset and boot normally. If it doesn't do it try with the other volume button instead, there's YouTube videos for the a500 I think showing it. This process is usually needed after going back to stock.
[Acer Iconia Tab A100] Phatboyj420:
What about my post would give you that idea?

My post was simply intended to acquire knowledge from anyone who might care about fixing, preventing, or recovering from the brick that this thread is about.

But to answer your question anyway Yes after having my M-Board replaced "for free out of warranty by acer" I did do an initial backup and before flashing any custom roms I did some digging through the stock Gen2 ICS/ Acer_AV041_A100_1.049.00_PA_CUS1 that was on it when acer returned it to me.

---------- Post added at 03:39 AM ---------- Previous post was at 03:30 AM ----------

Pio gave you good advice

I just want to re-iterate that the correct button to hold is the volume Up that is when you're doing it with the tab in

land-scape also start with the rotation lock switch all the way to the left

You want to hold the Power And vol-up let go of the power after 3 seconds while continuing to hold vol-up

immediately after releasing the power button start flipping the rotation switch until you see someting in white letters about erasing user data and immediately let go of the vol-up button and wait for the tab to reboot. "Be Patient"

You also have to perform this routine when changing between stock HC and stock ICS and vice a versa!!

I've also recently learned that you cannot successfully flash a diff/incremental stock update.zip unless you are on the stock release directly prior to it. in other words you have to start with a full update.zip and then work/flash your way up through the diff/incremental update.zips to get to the latest. or dawnload through the system update on the tab and apply.

I did'nt realize this until I tried to get back to the latest Gen2 ICS Acer_AV041_A100_1.049.00_PA_CUS1 wich is a diff/incremental Update It seems that a full ICS update for GEN2 was never released so I had to flash all the way back to the closest full HC update Acer_A100_2.003.01_COM_GEN2 and then flash my way up through 4 more diff/incremental updates to finaly arive at the latest.

If anyone would like the update.zips I speak of above just PM with your E-Mail add. or Your upload spot of choice And I'll see that you get them. I only offer as I've noticed verry little GEN2 availability.

Quick qeustion is there a way to combine the diff/incrementals into a full GEN2 ICS Update.zip and if so would you be willing to either teach me how or provide one for our community?

Thanks in advance
[Acer Iconia Tab A100] chicinwang:
http://m.youtube.com/watch?v=QwyGSwmzVtM.

Here's the vid hopes this help clarify the how.

Second I actually didn't mean to quote you're tool post. For some reason my phone pics the post above the one I click. And I didn't double check it.

Sent from my SCH-R760X
[Acer Iconia Tab A100] oneglory:
i got it, thanks guys!

i think my troubles were stemming from me pretty much making hardware modifications to the power board. see, its not in it's original location so the button positions were getting confusing.

---------- Post added at 08:04 AM ---------- Previous post was at 07:53 AM ----------

well, im still getting no satellites. so i guess back to my other thread. thanks for the rom help guys!
[Acer Iconia Tab A100] chicinwang:
Edit:wrong thread
[Acer Iconia Tab A100] winny57:
hi,

new to the brick?

I always iconia in the closet lol

---------- Post added at 03:14 AM ---------- Previous post was at 03:13 AM ----------

hi,

new to the brick?

I always iconia in the closet lol
[Acer Iconia Tab A100] pio_masaki:
If you mean anything new to fix bricks, no, still send to Acer or replace the motherboard. Brick prevention still remains less flashing = longer life.
[Acer Iconia Tab A100] winny57:
OK thank you for the info is good work, I've never seen someone like her yours the rolls lol

Translate by Google

Envoyé de mon GT-P3110 en utilisant Tapatalk
[Acer Iconia Tab A100] das_webos_transformer:
What? Hahaha
[Acer Iconia Tab A100] winny57:
hahaha?

Envoyé de mon GT-I9305 en utilisant Tapatalk
[Acer Iconia Tab A100] dubis22:
Hello,

Should I read all the post for know how to unbrick my A100?

Is it the good thread for speaking about that ?

Thanks
[Acer Iconia Tab A100] pio_masaki:
It can not currently be repaired besides board replacement, but feel free to discuss it all here, that's why this thread exists :thumbup:
[Acer Iconia Tab A100] japmeet:
Sorry for bumping this thread but my iconia a100 bricked out of nowhere last night. It was running stock ICS with everything stock. I had rooted it once before (around a year back or so) but I reverted everything back to stock 2 weeks later.
[Acer Iconia Tab A100] barev:
Hello everyone,

I have an Acer Iconia A100 which is bricked due to the described emmc bug. I haven't flashed, rooted or done anything else with the device apart from the OTA update to ICS.

I have tried contacting Acer to get a replacement even though my guarantee is expired and I am in communication with the complaints department. They answered me that I have to prove my device is indeed defective. Does anyone have any idea how I can prove this and send them something like an output from adb or whatever?

Thanks in advance!
[Acer Iconia Tab A100] Phatboyj420:
The only way to prove it to them is to send it to be fixed by them wich is what they should have suggested in the first place

Try messaging them through their facebook page and talk to another rep
[Acer Iconia Tab A100] coolloser:
Necropost! I was helping my sister move some months back and found her Iconia gathering dust and took it home for a kitchen tablet. Flashed the latest rom I could find and laughed when youtube wouldn't even worked. I used it for recipes and netflix or music while cooking. Bought another google home mini today and needed another plug for it in the kitchen and was gonna mount the iconia somewhere for a smart home control/weather display and.......bricked!! Was perfect timing and just made me laugh. My Nexus 7 that I bought after my original Iconia died actually bricked when upgrading to marshmallow (I think?). I'm just not allowed to have a 7" device.

If anyone in Canada wants the Iconia for parts or the case (it's this one in black https://www.walmart.com/ip/Acer-Iconia-Tab-A100-7-Protective-Case-Red/17193280) or the charger, hit me up and pay for shipping.
[Acer Iconia Tab A100] MegaDragonMan:
Ok, thank you.
[Acer Iconia Tab A100] pio_masaki:
Thank you for the detailed reply! How is it bricked though? I mean like what does it do when it starts?

Tapatalked from my Galaxy S II.
[Acer Iconia Tab A100] Icewyng:
I still have APX mode & Fastboot but the bootloader is locked so...

My only chance is NVFlash. No news about a new EEU lately?
[Acer Iconia Tab A100] pio_masaki:
Well I meant a usable fast boot and we can't use apx mode either. I asked zero null about the service boot loader but I don't think its any use for us either.
[Acer Iconia Tab A100] MegaDragonMan:
pio_masaki, when will you upload the files?
[Acer Iconia Tab A100] patrick_spd4u:
All runs normally, then I tried overclock, but on every reboot it backs to 1 GHz. Everything was fine, a bit sluggish, but still normally.

Then I tried "Fix Permission", aaaand.... it's bricked.

---------- Post added at 06:44 PM ---------- Previous post was at 06:36 PM ----------

I sent my A100 to Acer some months ago... All they did was the factory-reset with the Vol+ and rotation lock, which we can do it ourselves. And they charged me $10 for that.

They gave the solution: get a new motherboard...for $300! Genius!
[Acer Iconia Tab A100] pio_masaki:
Sorry for the delay, I was getting Jellybean working on our devices, which I suppose is less important atm. Plus dev-host is being stupid and slow and dropping connections, it'll happen eventually.
[Acer Iconia Tab A100] MegaDragonMan:
Ok.
[Acer Iconia Tab A100] Fransis88:
tomorrow I bring my tablet, apparently repaired!! Hurrah for the service technician iberica ACER!
[Acer Iconia Tab A100] Fransis88:
Well, it seems that tomorrow will bring my tablet repaired. I called the SAT to give me details of the repair. and tell me that the only thing that have been made ​​to reinstall the OS, drivers and bios do not quite understand .... I wanted to mean by the bios, I guess I disappeared directly the recovery and therefore noses to install him there was nothing more to boot.

I think when I return it to my regret, I'll stop series. I see present day has not advanced the scene in this tablet, and never in my life I had this happen with any device.

give me a recommendation? TWRP or CWM, serial or leave and lose all the advantages of the cooked ROMs.

Now I will tell you when I get the tablet .... gives me the same thing happens to me rebolao and sell it for when you leave the nexus.
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
Just wanted to let everyone know that i was on the aoikaze rom and was in the middle of playing dead trigger when my tab froze... I rebooted it and when I did it caused every partition on the tab to be erased. It is nothing more than a paperweight now. It erased everything... The recovery.img, boot.img, system.img, etc. it wont even mount my external sd in recovery, even though i been able to successfully reflash the recovery.img and boot into recovery. i have tried both TWRP and CWM, and neither of them will mount the sd. im sure if someone found a way to get the sd to mount, i could reflash the recovery.img and apply the update.zip. i just cant figure out how to get the sd to mount now. maybe that partition is gone or something. if there is anything anyone could help with, any ideas are welcomed and very much appreciated. thanks in advance to anyone who helps or provides ideas.
[Acer Iconia Tab A100] max69power:
i had the same thing happen i ha done a backup then as on the stock browser it froze up and that was all she wrought all the partions are gone can't mount sd card. I have tried every thread i can find. now i am trying to get stock recovery and re lock for rma if anyone knows where to get the stock recovery i would appreciate it. I know it was nothing i had played with since i had just unlocked and rooted I was just making my first ti backup
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
Would it be possible to relock the bootloader after flashing stock recovery?
[Acer Iconia Tab A100] pio_masaki:
If you still have adb yes. But do not use a custom recovery and lock the boot loader or you lose access to recovery!

Tapatalked from my Galaxy S II.
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
I don't think I still adb... I still have access to fastboot mode... I just wanna lock the bootloader and put stock recovery on it so I can send it in for repair without having to pay an arm and a leg
[Acer Iconia Tab A100] pio_masaki:
Well...can you still use the update.zip method and put a stock ICS leak on it? If not uhm...

If you have fastboot you could flash CWM or TWRP, then you gain adb (assuming it takes the flash). Then once you have adb you can flash a stock bootloader blob, and in the same instance of recovery, flash stock recovery. It'll have to go exactly right and get done in one shot, once that stock bootloader goes in, you will not have access to a non stock recovery again. And no, fastboot oem lock won't work, its still an A200 bootloader, its obviously not meant to be there.
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
Or can it be stuck on the Acer screen and still be able to use adb?
[Acer Iconia Tab A100] pio_masaki:
Sorry, when you said you don't have adb I assumed you had actually tried and it didn't work. Try it, and see if it works.
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
No... It fails everytime I try update.zip method.... It wont even mount external SD to be able to apply the update... So I booted into fastboot mode, typed fastboot flash update update.zip from the android sdk platform tools folder and it failed that way as well
[Acer Iconia Tab A100] pio_masaki:
You really have to be more specific, it'll be alot easier. Failed how? What did it say? I can think of 3 things right now that could cause a failure, and now I need to know which one it was.

Was update.zip in the same folder as your fastboot?
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
Yea. It would say sending... Send ok. Then it would say something about writing update.zip... Write failed. I have tried pulling the log, to see where the error was but no luck.
[Acer Iconia Tab A100] pio_masaki:
Ok, well then the only other thing I can think of is what I mentioned earlier about having to run CWM or TWRP for a session and attempt to replace the bootloader with the A100 version. I'm pretty sure you can boot a recovery image from your PC so the stock recovery stays, its a one shot deal. Lemme go figure that one out. Oh, did you ever figure out if you have ADB?
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
Unless u can access adb while on the Acer screen then no. It tells me device not found.
[Acer Iconia Tab A100] pio_masaki:
In recovery. Same thing that you would do to boot up and use update.zip, volume down and hold it + power until the sdcard message comes up. Then try adb. I'm putting together a package to revert it back to stock, and I'd rather not have to flash a custom recovery if I can help it.
[Acer Iconia Tab A100] hrdcorsnwbrdr69:
U can access adb while in recovery? Didn't know that lol. Ill give it a try