yashsingh1/xdaforums huggingface dataset:
[Android General] djouija:
I have the A1-810 PA_CA model, recently updated to the KitKat version that was just posted on Acer's support website (Acer.AV0K0.A1-810.RV0BRC05.PA.CA) and it has caused my unit to go into a boot loop that I cannot seem to recover from, and I cannot downgrade to any other version now (due to the bootloader being updated I believe), without getting an assert failed: getprop("ro.product.name") == "a1-810_pa_ca" error.

I'm curious if I try flashing using this method if it might fix the issue for me, but am unclear of the steps to take. Any help is appreciated!

Update: Fixed it!!

I basically followed the guide at: http://xdaforums.com/show...3&postcount=53

and downloaded the A1-810 files and Drivers package from there as well.

Then my unit managed to get past the reboot loop and boot into KK successfully!

CWM didn`t actually install, but there is a note at the bottom of the link regarding that, but I`m not going to bother for now as I am more than happy to have a working tablet again!

Hope this helps anyone else!
[Android General] drmad:
Flash zip in cwm
[Android General] nikagl:
Great guide! Note that you should change the steps a little.:

The 64bit installdrv64.exe is executed from install_driver.exe and should not be used (installdrv64.exe returns "Usage:installdrv64 64bitfunc_name param1 param2 ..." instead of actually installing something.

Should be:

It might be a good idea to keep a list on which the "other" start address was tested:

I tested it on A1-811 and it works. This will increase the confidence for people that go through the guide.

I personally prefer to see the actual picture, instead of having to click to a next site, and therefore I had modified step 10 (using a quick description, and using the IMG tag for the picture instead of URL):

Thanks again for the great guide and making us aware of your 4PDA posts.

Regards,

Nika.
[Android General] Just_Another_N00b:
Concise and clear. Very good. It is good to see fresh blood in all things Iconia here...

Thanks!
[Android General] fdc77:
A1-810

sorry,

where can I find a guide to bring the tablet to its original state? all stock.

thanks
[Android General] nikagl:
Which tablet?
[Android General] fdc77:
A1-810
[Android General] nikagl:
Go to post #52 and download the Rom for your device (A1-810 in your case):

Take steps in post #52. If you have a 64bit machine, make sure to install the 32-bit version install_driver.exe and use the mentioned Start Address for other tablets (0x3D80000 should work for A1-810).

WARNING1: take all steps exactly as described, using invalid Start Address or Container Length can brick your device.

WARNING2: all your data will be wiped. Always best to factory reset afterwards

This will install stock JB or KK Rom depending on the version you flash onto it. CWM or root need to be added manually afterwards...

---------- Post added at 10:16 PM ---------- Previous post was at 10:13 PM ----------

Not so fresh, have always been monitoring the threads but my 811 screen was broken for a while. Replaced it last week, so I can play around with it again :)
[Android General] Moriveon:
That feel when you see your TWO copy-pasted guides on ONE page.

[MENTION=718176]kyanox[/MENTION], Guide from 4PDA is already here (read 1st post here), by the way I (Moriveon) wrote an original post.

[MENTION=313379]nikagl[/MENTION], If you want to improve my guides, you can PM me at any time.

Please, delete your posts with my guides.
[Android General] nikagl:
Agree the full guides shouldn't be there as it makes it all confusing. Will edit my posts to reflect the info that should be in there...I don't use the PM system though - replying to topics is what the community is for :)
[Android General] Vasdf:
Ok, at this point I just give up.

I've tried to install the drivers in the OP in a fresh copy of Windows 7 Ultimate 64 for my Kitkatt A3-10 with USB debugging on....every time I reboot then connect the USB cable it stops to scan it as if I didn't install anything earlier then says it didn't find any drivers for the device, then I proceed to disable and uninstall, then reboot, then do it all over again.. I literally can't get it to work at all.

If anyone is looking into bugtesting this for me, we can arrange a Teamviewer session to see if there's any way to fix it together. Otherwise it's just unrootable for me at this point and I might end up selling my device soon, I've been trying to root it for months and it always bugs out and I quit.

I've also found drivers on my own from this page.

http://drivers.softpedia.com/get/JO...3-A10-Android-USB-20-Driver-10.shtml#download

http://goo.gl/i56Gn

They don't work either.
[Android General] nikagl:
Just to make sure, how did you install the driver? Did you run as admin and which installer did you use?
[Android General] DDoZ:
I have this same problem. I followed the steps to install the driver on a win 7x64 home premium, but on reboot windows is unable to adress the driver. I opened "installdrv64.exe" with cmd as Admin, it says: "Usage:installdrv64 64bitfunc_name param1 param2 ..."

So, I removed all that I could & disabled autodriver install for now.

What parameters should I enter ?

If I can't do it this way, is there anyway to select manually the driver ?

I went in management on the "unknown USB device" & tried searching, though I'm not shure what file or folder to look in.

Thanks for helping guys, can't wait to memory swap this thingy :D
[Android General] nikagl:
Hi all,

It's up to the OP to change the first page, as far as I could see on my 64-bit Win7 machine I had to use install_driver.exe (Run as admin!) instead of the installdrv64.exe. After that it worked fine for me.

Regards,

Nika.
[Android General] Moriveon:
[MENTION=313379]nikagl[/MENTION]

Looks like x64 installer doesn't work on some PCs...

On my notebook it works fine!
[Android General] nikagl:
You probably already had a driver installed before running the command. Try and execute it now, from a command prompt (not double clicking) and you will see the message mentioned above. This message clearly indicates a command line is required and nothing is installed.
[Android General] Moriveon:
[MENTION=313379]nikagl[/MENTION],

>2014

>executing program using prompt

I removed original driver and tried to install it using x64 installer. Doubleclick and prompt install still work for me. So, as I said earlier, x64 installer may not work on the most PCs, I gonna add this in my guides.
[Android General] Vasdf:
I installed Win 8.1 instead and the first time I connected device to computer from the rear with a good USB cable, it actually didn't detect it as a known device, it just showed as Other Devices with a warning, then I tried to right click it and point to the signed MTK USB drivers that I had downloaded and unzipped, it said it couldn't install them that way because it was signed by a third party and I would need to reboot in compatibility mode to do that, which sounds like progress to me.

https://www.youtube.com/watch?v=gmw86KplqmU

The next idea came from this video. When I got to reboot in compatibility mode, no matter what I did, I couldn't reproduce the same result, it just says it can't find suitable drivers even with normal boot(third party block on), it won't say anything about drivers being suitable.

Right now it shows as both a portable device and Other Devices with a warning on the latter. If I just install from the exe, it won't even say it installed drivers for Win 8.1, just ''MICROSOFT 64BIT OPERATIVE SYSTEM'', it also doesn't do anything :confused::confused::confused: .

Could this mean I'm already rooted so it can't identify the device normally now?
[Android General] Moriveon:
In all my guides I wrote "This stuff may not work on Win8 bla-bla-bla..."

I have an untested driver for Win8+, I'll upload it later this day.
[Android General] Shreps:
MTK drivers signed for windows 8.1 are available on my website if needed

http://acer.shreps.fr/dls/storage/MTK_Signed_Drivers.zip

Envoyé de mon One+
[Android General] Vasdf:
Pretty sure those are the ones I tried.

Ideally though, at this point I might as well swap for Nokia N1.
[Android General] VKLink:
Hi Djouija.

Hi Djouija, I just registered to say THANK YOU.

I Saw that you posted on the acer forums (And they really don´t give support at all) and i read that you succesfull unbricked your tablet A1-810 by "Flashing your bootloader"

It took me all this day to find how to unbrick it and its for your post that i found the answer with this tool in XDA

And Thanks for the one who did the post #52 where it explains all the process perfectly :)

I don´t know how to say how gratefull i am with the tablet working again

Thank you all, really.

P.D: Sorry for my english, its not so good :p
[Android General] Vasdf:
GUYS, GOOD NEWS, PROGRESS! My Tablet actually has root on!

How do I know? Puzzles and Dragons JP doesn't run anymore, this only happens when you're rooted and your root folders aren't hidden/set.

The bad news is that...I still don't know how to make SPFlash work, I need it to unlock the bootloader and finally install SuperSU correctly, as it's not letting me do it right now as it's bugged in the many OSes I tried. I'm going to try in Windows 7 32bit this time around and see what happens.
[Android General] Vasdf:
I just installed Win 7 32b and the first time I tried to follow the guide it tried to install the device, I had device manager opened, the first thing it did was show as Mediatek Media Device or something like that(!), which sounded like progress. Then after it started searching for drivers, it just did a 360 and switched back to the old unknown Android device problem.

My MicroUSB and PC are all fine, my device even shows as it's connecting as a media USB device. I give up.
[Android General] Moriveon:
Disconnect the battery from tab and retry. Also try another USB port on PC.
[Android General] Vasdf:
I tried front and back and it always does the same.

Now I understand why everyone runs away from the Iconia series except us :(.
[Android General] Moriveon:
Bloatware Removers were added in OP-post, check 'em out!

Also I want everybody to make BW Removers for other devices like B1-71x, A3-Ax, A1-811...
[Android General] Banch123:
A3-A11

Hi.

could anybody help with A3-A11 to go back from 4.4 to 4.2 ?
[Android General] Optimissimus99:
A1 - 810 bw remover doesn't work. Code 6.
[Android General] Moriveon:
[MENTION=5737085]Optimissimus99[/MENTION]

I fixed it. Re-download it from OP-post and try again ;)
[Android General] Optimissimus99:
I'm sorry to say... But no it doesn't work. Now it shows status 7. But by the way, it it will work properly, then you could also use it on 811, because the bloat should be the same. It has just integrated a 3g driver
[Android General] dekidekowski:
A1 - 810 bw remover doesn't work.
[Android General] Moriveon:
[MENTION=5737085]Optimissimus99[/MENTION] [MENTION=6189420]dekidekowski[/MENTION]

I finally fixed it, version 3 is available in OP-post.

if it still not works, trash yourth tabs
[Android General] dekidekowski:
Is ok.
[Android General] Optimissimus99:
OK installer worked. BUT MY PLAY STORE DONT WORK ANYMORE :( It closes just, and also all otner Apps wich require play services
[Android General] dekidekowski:
Gaaps KK installation fixes this problem.

(gapps-kk-20131209.zip)
[Android General] Moriveon:
[MENTION=6189420]dekidekowski[/MENTION] Please, give me the link to GAPPS, I'll add them in OP-post.
[Android General] dekidekowski:
They are, for example, here: https :// goo.im / gapps /

https:// goo.im/gapps/gapps-kk-20140105-signed.zip

But this is the only way to repair the damage caused by A1-810 BW Remover.
[Android General] wbrambley:
Or edit it to leave phonesky.apk and what ever else you want to keep. I have and this means play store still works. In my edited version I left a few other apps that I use too.

https://mega.co.nz/#!jUR3jLba!VZwqSWI3CGqGTISDiImjLXc3l2JvQBqUyY3f_nb2jz8

Good clean script too by the way, thanks. ?
[Android General] Optimissimus99:
OK. Seems to be fine after gapps installation
[Android General] algorithmae:
Thank you guys so much!! My B1 710 was sitting in my closet, bricked, for the longest time. Using the flash tool, I was able to easily flash a working image, it's exactly what I needed 10 months ago. You guys are amazing!
[Android General] Moriveon:
Right now me and [MENTION=4493088]Shreps[/MENTION] are working on unlocking+cwm'ing following tablets:

A3-A11

B1-720

B1-721

It all will be ok, I'll release the stuff next week.
[Android General] terrycurls:
Hey guys,

This thread is cash and i really appreciate the work you guys are doing getting my crap tablet to be better (a3-a10, fml).

I rooted with framaroot on original JB, but then I updated to final JB and root didn't work anymore (which I figured would happen), and now have been waiting for months for the progress to reach a way forward from there.

I just want to confirm the steps and/or how it works, because I don't want to get halfway through bricking my tab and then realise I don't know what I'm doing...

There is a tool for unlock, cwm and root for JB 4.2, but then also a KK 4.4 unlock/cwm/root (which seems more dodge, many mentions of taking the back of and unplugging batteries etc).

I was thinking unlock + cwm on JB because it seems safer, then update to latest KK ROM and root that.

Am i right in thinking that flashing the ROM will overwrite the boot and recovery so I'll end up having to unlock and cwm again anyway?

basically once unlocked and recoveried, will flashing a new ROM remove whatever I've done already?

thanks
[Android General] Moriveon:
Yes, it will overwrite.

Btw I recommend you to stay on JB because we only have partially root, so the most programs won't work.
[Android General] Shreps:
False, there is full root with system remount on A3-A10 with unsecure boot ! ;)

Even on KitKat !

The limitation you're talking about is on A1-81x :)

Envoyé de mon One+
[Android General] Optimissimus99:
Just too bad that acer brokes GPL. I wanna habe full root on My "craplet". Maybe we should Start an online petition.
[Android General] terrycurls:
weird...

upgrade to 4.4, sweet. unlock and recovery, sweet. boot cwm and remove recovery flash, sweet.

flash supersu (2.13) , says successful but doesn't actually show up in android.

tried to run titanium backup and it hung whilke requesting root rights. tried flash again, still no. had to install from the play store before anything can ask for root rights.

seems to work now though
[Android General] Moriveon:
03.12.2014 ATTENTION!

All files and guides (Firmwares/Unlock+CWM) will be unaccessible for 2-3 days!

Due to repeating users' questions and my mistakes I decided to fully update all stuff.

Firmwares and other files will be hosted on my FTP server, guides on GIT.

Thanks for your patience!
[Android General] Banch123:
Wow! Thank you very much! :)
[Android General] spljaa:
I recently updated superSu.2.36 on A1-811. I'm a bit confused how it exactly work. I flashed it with update.zip. No success.

Then I checked script and tried to follow it, fix? I'm not sure if all is needed...

Using adb shell and /system mounted in CWM i created /system/etc/init.d/ and flashed update again. This time it added file there.

Then same way with adb shell I did chmod +s on /system/xbin/daemonsu and su related files.

Also +x to /system/etc/install-recovery.sh

Now it works.

A1-811 is for sure my first and last device from acer.

Regards
[Android General] arek78:
Hello Guys can you help make Root "Acer Iconia Tab 8 A1-841 Procesor Mediatek MT8389QV" KitKat 4.4.2 -- Thanks.
[Android General] Shreps:
Hum, I found a SD full Firmware for A1-841

Maybe I can try to pack a CWM from there, but without a full SPFT Firmware to recover in case of brick, it's risky.

And we don't know if the preloader is locked or not

[MENTION=5889030]FireDiamond[/MENTION] do you have any info about this device ?
[Android General] Moriveon:
Sorry, but there's no SPFT firmware for this tab.
[Android General] arek78:
Shreps

Could you link Firmware in case I get stuck TAB. Try to do something you'll be very grateful.

If any of you want to increase volume Tab processor Mediatek type this code *#*#3646633#*#* in the dialer opens hidden menu and can change many things or install this application.

mobileuncle_MTK_toolv2.9.9.apk:good:

http://www67.zippyshare.com/v/73507186/file.html
[Android General] Shreps:
Here you go : http://www.mon-nuage.net/A1-841/Ace...A1-841_AV0K1.RV00RC00_AV0K1.RV05RC06_WW_GEN1/

[MENTION=5889030]FireDiamond[/MENTION] could be added on FP ;)
[Android General] Moriveon:
"Firmwares for SPFT" guide was moved and now online!

Have any ideas/suggestions/improvements? Contact me!

Now I'm working on "Unlock+CWM" guide...
[Android General] arek78:
Shreps

My Frimware anyway and newest, however can serve Thanks. Then you can unlock Root and CWM add to this Tab you say.

Can I use this "A1-810 BW Remover.zip" on "Acer Iconia Tab 8 A1-841" to remove Blotware, by stock recovery.
[Android General] royalac:
Hopefully this will be soon. I'm desperate so... please hurry :)

And thank you very much for such a great work :)
[Android General] jrmpinto:
2716

Hi! How should I proceed to root my acer iconia a1-810? it's possible to unroot it if i need to send it back to the store? thanks
[Android General] Moriveon:
[MENTION=6220829]royalac[/MENTION]

I sent files for testing to some users about 10 mins ago.

I'm doing it because I had some serious problems with B1-72x tabs, so I don't want to build a "brick house" from users' dead tabs.

If files will pass all tests, I'll make them public.
[Android General] Moriveon:
A3-A11 was unlocked!

A3-A11 was unlocked and CWM'ed! Check out my updated guide in OP-post!

Huge thanks to [MENTION=4493088]Shreps[/MENTION] for help!
[Android General] jrmpinto:
Someone? Wanna root the tablet but only if I can unroot it later... Thanks!
[Android General] Shreps:
SuperSU can unroot

And You still can flash stock Firmware if needed

Envoyé de mon A1-840FHD en utilisant Tapatalk
[Android General] royalac:
I'm glad to hear that and thank you very much.

Can't wait to flash rom on my iconia :)
[Android General] jrmpinto:
I'm trying to root my a1-810 but i got stuck at point 11. I connect the tablet (turned off) but the bar just don't move and it shows the message "SEARCHING"
[Android General] Optimissimus99:
Then you haven't correctly installed drivers. If you have Windows 8 (or 8.1 / 10preview) you need to install special signed drivers or install them in "unsigned" Boot Mode.
[Android General] Moriveon:
Universal signed drivers are already in my new guides ;)
[Android General] jrmpinto:
Finally i did all the guide, but nothing happened... I turned on my tablet, installed root checker and supersu and it says my tablet isn't rooted.

my firmware version is ACER_AV0L0_A1-810_RV0BRC01_WW_GEN1
[Android General] Shreps:
Which Guide did you follow ? Did you unlock and flash CWM ? Did you flash a SuperSU updated zip ?
[Android General] jrmpinto:
I just made what is in this guide http://4pda.ru/forum/index.php?showtopic=480290&st=4840#entry34180301

Isn't enough? Thank you
[Android General] PeeCZa:
Hey guys, I just bought Acer iconia A3-A20 FHD (32GB, 2GB RAM). Can I use the same guide for unlocking bootloader as for A3-A1x? Thanks :)
[Android General] Moriveon:
[MENTION=2276287]PeeCZa[/MENTION]

No, you can't. Sad but true.
[Android General] JanryC:
Hello sir.. Thanks for sharing the stuff and guide,. May i especifically ask where you placed the guides and files for :

B1-A71 ?

Thank you!!

God bless your wok..
[Android General] _Tallis_:
Hi there!

I've got a new A3-A20FHD with KK4.4.2 and Mediatek chip MT8127. Any chance of rooting the device?

Thx, _Tallis_
[Android General] Moriveon:
Looks like some links were wrong.

Now all people can access my new guides/files from OP-post→Guides.
[Android General] Banch123:
A3-A11

Could I use this guide to unlock A3-A11 with 4.4 KitKat ? Or it wiil be bricked?

If no, how could I move back to 4.2?
[Android General] VKLink:
tablet bricked

Hi all

Idk if someone can help me, I did wrong one step of the tutorial in the post #52 :(

I have a tablet a1-810, and before I realized these steps and all went fine.

But THIS time with another exact model of the tablet, I think I just f*** it up

Exactly in the step 3.3 (when you choose the new tab of "write memory" ) I didn't change the "memory setting" and it was selected "Nand flash" instead of "EMMC"

I put the "begin adress" and the "container length", then click on "write memory", conected the tablet turned off to the PC.... and only appeared red in the progres bar.

It was then when i saw that "nand flash" was selected D:

Now the tablet dont respond, dont charge... Its dead

Is there a way to fix this?

I tried following the steps again now with the "EMMC" option selected but it appears that the tablet is not recognized by the SPFT tool

sorry for my english* and greetings from México :)
[Android General] Moriveon:
Try to follow guide, but without battery in your tablet.
[Android General] Optimissimus99:
Have you tried to reset it
[Android General] VKLink:
Problem Solved!

THANK YOU!!!

I repeated all the steps without the battery just like you said and my tablet came back to life :D:D:D:D:D

really really really thank you [MENTION=5889030]FireDiamond[/MENTION]
[Android General] royalac:
b1-720

No news about B1-720 ?

SPFT way does not work (tried with and without battery and with 10 different SPFT versions). It's maybe because of drivers but I tried 100 combinations on 5 differnet laptops and.... nothing.

Hopefully there will be CWM and recovery rom soon for this particular model.

Best regards,
[Android General] cabalio83:
A1 810 ww gen1 ota

Hi all, I just received a OTA notification for my A1 810 WW GEN1 running Kit Kat.

It's a 113 Mb update. I have an unlocked tablet with custom recovety, so flashing the OTA is not an option...

I tried flashing the update.zip file on CWM but (of course) it failed (see photo).

EDIT

[MENTION=5889030]FireDiamond[/MENTION]

I copied the files from the cache folder after they were downloaded, I've got them on my PC.

The OTA gives you four files: diagnostic.xml, diagnostic.zip, update.zip (115 Mb), updatelist.xml.

If it is of any use (and if it is allowed) i can upload the files for you, let me know.

Googling about this it seems that there is an update to the kernel, I would like to see if by chance system write with root becomes possible
[Android General] Shreps:
You must go back to stock recovery in order to flash the OTA.

Root will also be lost, you will have to reboot, reflash CWM and then SuperSU again
[Android General] Wolf Tatoo:
Then please,let us know how 2 flash only stock recovery,and how 2 reflash just CWM;)
[Android General] Optimissimus99:
Tick only recovery in SPFT ;)
[Android General] Hamza91:
Error while flashing firmware (B1-710)

I am having trouble connecting the tab to pc. It just starts to reconnect in loop after 3 seconds. I tried to connect with and without the battery still same. Any help would be greatly appreciated. My tab is unlocked but dead because tab disconnected in middle of the flashing. Now flashing gives error 404.
[Android General] tdt321985:
Root Acer Iconia Tab B1-721

Updated: Now you can root Iconia tab B1-721 by this tool: htt p://res.kingroot. net/msoft/webapp_kingroot/image/KingRoot_Android_3.4.1.157-General_105001.apk

Please remove space on above link to use, because I'm newbie cannot post link!;)

Note: You have to enable unknown source, usb debugging and internet connection to root

.

After installing, open Kingroot and click on Circle, wait and it will do it all for you. It will install KingUser on your tablet ( this app is equal to SuperSU).

All done! I have test on my Iconia Tab B1-721 Kitkat 4.4.2
[Android General] shadow252:
Sorry for mistake.
[Android General] arek78:
Shreps Here I I've written to write here on mediatek now you can help me. I want to obtain permits root and install custom Recovery for "Acer Iconia Tab8 A1-841".
[Android General] Moriveon:
-

del
[Android General] arek78:
FireDiamond

So well for A1-841 YES.