yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] Leinik:
brick ?

Hi,

I have unfortunately interrupted the flashing process (selected bad image and interrupted during copying process) and now I am stucked on bootlogo...I am able to go to fastboot and also I am able to make factory reset in recovery mode, bude doesnt help. Is there way to unbrick please?

Can the TWN-GEN1 image work on ACER A1 810 (RV18RC07)?

Thank you very much for your work and your reply is highly appreciated. If you will help I will donate you for first time here on xda. :fingers-crossed:
[Miscellaneous Android Development] xheadshotxpain:
Is there a way i can enable hid bluetooth support om my a1-810?
[Miscellaneous Android Development] muvensa:
Can you explain how to update, using ota rootkeeper, without losing root?
[Miscellaneous Android Development] thedjhome:
Acer Iconia B1-A71

MY DEVICE: Acer Iconia B1-A71

After doing root, can i do factory reset?

PS: sorry for my bad english

PS2: my tablet is rooted success, thanks.
[Miscellaneous Android Development] jordirpz:
Y es, you can, and dosnt lose your root. Reinstall superuser

Enviado desde mi B1-A71 usando Tapatalk 2
[Miscellaneous Android Development] thedjhome:
Thanks!
[Miscellaneous Android Development] amila619:
My iconia is bricked after trying to root. Now its frozen and unable to shutdown. Any help would be appreciated greatly. Thank you guys...
[Miscellaneous Android Development] spljaa:
A1-811 - worked

Hi,

It worked on my new A1-811.

I followed steps for A1-810.

There were some minor issues, I'm not sure about them. It looked like sometimes it failed to obtain system.img.

Anyway after next attempt it worked smoothly.

As recommended I used "Superuser with a white hash in the blue icon". And it indeed worked for apps that required super user.

Thanks
[Miscellaneous Android Development] nick_1964:
Been gone for a while.

What do I do wrong...

As I understand, I can use an SD card to replace the internal memory.

So I put in an 32 GB, NTFS formatted card and run the toolkit.

I have an Acer Iconia B1-A71 so I choose number 1 for the device.

It is rooted.

I run the toolkit and choose 3 : internal 2 external.

I don't need a backup so I choose option 2, i need more space.

swap internal sd to external sd and external sd 2 internal sd.

I press enter to continue.

Swapping partitions, Succes. ( and I see my name there ( thank you ;) )

I put the device off, and on again, and nothing happened ?

I am confused, do I understand it wrong ? I was thinking that after this my SD card with 32 GB of space would be my internal memory, but it doesn't...
[Miscellaneous Android Development] xheadshotxpain:
please help

can someone post the root system folder for acer iconia A1-810. i ereased it, then realised i dident have a backup, please help. if not can i use any system folder?
[Miscellaneous Android Development] old_art:
Hello xda members...

iconia a1-810 user here....

just want to share my problem

i can see iconia a1 touchscreen sensitivity is low...and i cant even draw or write with a stylus, even with my hand it not respond sometimes...

i've searched this issue before.. and i can see others also have the same problem..

some other said that update the FW will make the touchscreen more responsive..

but when i try to update.. it says that my device is updated....

the new FW that others says will improve the touchscreen is same with my device, but the touch FW is different...

Image version: Acer_AV052_A1-810_RV18RC07_WW_GEN1

Build Version: Acer_AV052_A1-810_1.077.00_WW_GEN1

Firmware Touchscreen: FT0-850-13032500 << This one is different with mine

My touchscreen firmware

Firmware Touchscreen: FT0-840-13032500

can any1 help me out to figure out how i can update the touchscreen firmware??

any other way to improve the touchsreen? i need to use stylus a lot

btw.. my iconia a1 unrooted...
[Miscellaneous Android Development] entonjackson:
Hello my old friend!

do you use 0.7.3?
[Miscellaneous Android Development] @non4:
A problem with acer is poor assembly, so if you have no luck after updating either use your warranty (good luck, the warranty sticker in mine was torn when I didn't even touch) or carefully open the tab and reinsert the ribbon connecting the touchscreen so its snug. As yours is poor response (mine failed on one side almost completely) software may well be the cure. Good luck!

Sent from my smart frying pan (Tegra 3)
[Miscellaneous Android Development] spljaa:
A1-811 - how to rw /system?

Hello

I'm looking for a way to make /system partition writeable.

I tried to follow thread, but got a bit lost. Could someone confirm it is possible?

Or it is not until Acer opens bootloader? There is some special system.img for A1-810. Is there a description how to apply such changes to A1-811 image?

My understanding is that I can play with system.img add there binaries like su, and maybe some scripts, but how to let /system be remounted to rw? What Android permission controls that? I know something about Linux, but it looks Android world is quite different when it comes to permissions.

Regards
[Miscellaneous Android Development] @non4:
Not a permanent solution, but you could try to chmod 666 the file you want to modify, if that doesn't work chown root may also work. Of course this may not work if Acer has implemented special protection. I wouldn't recommend doing these commands to the entire /system partition either

Sent from my smart frying pan (Tegra 3)
[Miscellaneous Android Development] spljaa:
Hi,

Thanks for suggestion I'll try it, however I do have some doubts. I mean this idea:

how could it work on ro filesystem?

Regards
[Miscellaneous Android Development] glupik:
Hi guys, I already discussed with entonjackson about rooting A1-811 8GB few weeks ago, it came up that device is similar to A1-810. I've run rooting script under linux and succeeded (get "YOUR DEVICE IS ROOTED" message), of course I promised entonjackson to share my rooted img file, but waited for sodaFR to reply me to help grant R/W rights with his trick.

Unfortunately sodaFRs last activity is 6th of August :(
[Miscellaneous Android Development] nick_1964:
Hi there, yes I do !! latest version of the toolkit, the backup procedure works out fine, but it doesn't swap the card and the internal memory !
[Miscellaneous Android Development] entonjackson:
Could you please post the output of toolkit -d
[Miscellaneous Android Development] nick_1964:
Microsoft Windows [versie 6.1.7601]

Copyright (c) 2009 Microsoft Corporation. Alle rechten voorbehouden.

C:\Users\Nick>e:

E:\>cd even1

E:\even1>toolkit -d

======= Acer Iconia Toolkit v0.7.3 =======

Which device do you have?

[1] Acer Iconia B1-A71

[2] Acer Iconia A1-810

[3] Acer Iconia B1-710 / B1-A710

[Q] Quit

Enter a selection: 1

======= Acer Iconia B1-A71 Toolkit v0.7.3 =======

What do you want to do?

[1] Root

[2] Unroot

[3] Internal 2 External (needs root)

[4] Odex (needs root)

[Q] Quit

Enter a selection: 3

===== Internal 2 External ======

Make sure an external micro sd card is plugged in.

Trying to establish ADB Connection...

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

List of devices attached

0123456789ABCDEF device

ADB Connection to your Acer Iconia B1-A71 successful.

Checking current partition settings...

295 KB/s (1212 bytes in 0.004s)

Successfully pulled vold.fstab.

Current SD partition configuration:

Internal SD -> Internal (Default).

External SD -> External (Default).

Would you like to backup data from your partition, mapped as External SD, before

swapping partitions?

[1] Yes

[2] I need more Internal space! Now!

[Q] Quit

Enter a selection: 2

Swap Internal SD -> External SD and External SD -> Internal SD...

[ENTER] Continue

[Q] Quit

Enter a selection:

Swapping Partitions...

394 KB/s (1212 bytes in 0.003s)

su

mount -o rw,remount /system/

cat /data/local/tmp/vold.fstab > /etc/vold.fstab

mount -o ro,remount /system/

exit

exit

shell@android:/ $ su

shell@android:/ # mount -o rw,remount /system/

Successfully swapped SD Partitions.

SUCCESS!

The SD partitions of your Acer Iconia B1-A71 are now successfully swapped.

Do a reboot and enjoy.

Thanks to XDA: pawitp, alba81, bullbrand, sodaFR, MatrixDJ96, ak6, min-dfreak, a

gentdeep, nick_1964, sampod and you ;)

Press Enter to leave Application...
[Miscellaneous Android Development] entonjackson:
what is the content of the /etc/vold.fstab on your tablet?
[Miscellaneous Android Development] nick_1964:
## Vold 2.0 Generic fstab

## - San Mehat (san@android.com)

##

#######################

## Regular device mount

##

## Format: dev_mount <label> <mount_point> <part> <sysfs_path1...>

## label - Label for the volume

## mount_point - Where the volume will be mounted

## part - Partition # (1 based), or 'auto' for first usable partition.

## <sysfs_path> - List of sysfs paths to source devices

######################

## Example of a standard sdcard mount for the emulator / Dream

# Mounts the first usable partition of the specified device

dev_mount sdcard /storage/sdcard0 emmc@fat /devices/platform/goldfish_mmc.0 /devices/platform/mtk-sd.0/mmc_host

dev_mount sdcard2 /storage/sdcard1 auto /devices/platform/goldfish_mmc.1 /devices/platform/mtk-sd.1/mmc_host

## Example of a dual card setup

# dev_mount left_sdcard /mnt/sdcard1 auto /devices/platform/goldfish_mmc.0 /devices/platform/mtk-sd.0/mmc_host/mmc0

# dev_mount right_sdcard /mnt/sdcard2 auto /devices/platform/goldfish_mmc.1 /devices/platform/mtk-sd.2/mmc_host/mmc2

## Example of specifying a specific partition for mounts

# dev_mount sdcard /mnt/sdcard 2 /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1
[Miscellaneous Android Development] entonjackson:
For some reason you still have the default vold.fstab

You could manually swap partitions by starting a file explorer app like ES File Explorer.

Enable root mode and mount /system as Read/Write

then go the /etc

open vold.fstab file and edit the above to lines from /devices/platform/goldfish_mmc.0 to /devices/platform/goldfish_mmc.1

and /devices/platform/goldfish_mmc.1 to /devices/platform/goldfish_mmc.0

Then do a reboot.
[Miscellaneous Android Development] nick_1964:
Tried it several times, have root mode..keeps saying can not save... wil keep trying.
[Miscellaneous Android Development] entonjackson:
then something with your su binary is wrong... what are the permissions for /system/bin/su ?
[Miscellaneous Android Development] nick_1964:
Sorry, I am not clear anymore, we get a blind kitten from Greece,and it keeps me busy all the time... don't know how to find this out.. but root check says I am rooted ..

---------- Post added at 08:51 PM ---------- Previous post was at 08:33 PM ----------

Stupid question, does busybox need to be installed ?? I'm really not clear anymore.
[Miscellaneous Android Development] @non4:
Hmmm true it may stop you executing the command, however I have used these commands without using anything to mount as r/w, or does terminal do that itself?

Sent from my smart frying pan (Tegra 3)
[Miscellaneous Android Development] entonjackson:
no busybox app needed.

busybox binary is copied by the toolkit.
[Miscellaneous Android Development] nick_1964:
I can delete pre installed system aps.. rootcheck says: rooted, android explorer says unrooted.. it drives me crazy... oh no.. he found a ball with a bell... ahhhhhhh
[Miscellaneous Android Development] spljaa:
su and mount - I don't understand it

Hi,

Can someone give me link to a document (friendly and not requiring Android experience....)that could explain situation I'm observing:

Rooted A1-811.

Started terminal and su - there. Can't change /system to rw.

Meanwhile started adb shell. And su - in that session.

I can execute:

mount -o remount,rw /emmc@android /system

and then I can execute for example

touch /system/xbin/a

and file shows up.

I can see it from terminal emulation from device. But in that session I still see /system as ro, and can't rm this a file.

Ok, but it gave me a clue... In telephone I did

su -

su - shell

su -

and then as a root I could remount /system

All my linux skills are saying "magic".

Why going from root to shell user and then to root grants more capabilities than first su -?

Why one session (adb) has system as rw, while at same time, root user can see it as ro?

... I understand even less... Repeated test once more... and now single su - allowed me to remount /system.

Regards

EDIT: All might be due to difference between /system and /system/

I did not pay attention to that difference when doing above tests....
[Miscellaneous Android Development] 3andala:
[MENTION=3392632]entonjackson[/MENTION] i think about buying Iconia A1-810 after few weeks..Any advices ?

have Nexus 7 3G now could i love iconia after it :) ?

Thanks in advance

Cheers

ana masry brduu :)
[Miscellaneous Android Development] nick_1964:
location /system/bin

permissions: -rwsr -sr -x
[Miscellaneous Android Development] spljaa:
a1-811 - workaround

Hi,

I think my issues with remout were related to something like:

mount -o remount,rw /emmc@android /system

not working, while

mount -o remount,rw /emmc@android /system/

is ok.

Can't explain it, nor understand. I seen such testimonials on forum.

It makes all tools/scripts that want to play with system fail. As they remount filesystem.

So I used original system.img and replaced /system/bin/mount. Originally it is link to toolbox. In my case it is script:

toolbox mount $*/

Which appends / to every call to mount...

I had my fingers crossed when I put image to device. It booted, and for example now AdAway works. While before that 'fix' it was unable to modify /system.

If somebody is interested I can elaborate a bit more or provide files.

Obviously better way would be to implement some logic inside this mount script. So it will add slash only to remount /system requests... On other hand I do not have lab to test... any recommendation on virtual machines/devices?

Regards
[Miscellaneous Android Development] thedjhome:
Hello, I have a ACER ICONIA TABLET B1-A71 and I'm having trouble playing videos in HD quality on Youtube. What happens is that the video image is lagging behind the audio, but it only happens on youtube in HD quality, as if I watch a video of mine in HD saved in the tablet, it plays well. There, and not just me complaining, because I saw many comments about this in playstore

problem. Does anyone know how to solve? Thank you!

PS: sorry for bad english, i used google translation.
[Miscellaneous Android Development] Bunggye:
caught in bootloop B1-710

Hi. I have a B1-710 and am caught in a bootloop. I wonder if anyone can help me track down the Acer firmware update. Some others have posted here and it seems they haven't had any luck. Thanks in advance.
[Miscellaneous Android Development] glupik:
Desperately need your help, was playing with my Acer A1-811 8GB and I tried shell SU login, then I changed permission rights to /system/ folders to 777 and then after restart I got bootloop (maybe not exactly a bootloop but I see only blinking Acer screen).

I found a file on Acer's Tech Site "Acer_AV052_A1-811_RV02RC13_WW_GEN1_OPEN_SOURCE.tar.gz" but I dont know how can I change it to ZIP to update it from Recovery mode.
[Miscellaneous Android Development] jOvendOnna29:
Acer Iconia b1-710

Hi, is it possible i can root my device with out taking any problem on my device? i'am now downloading the driver's and system image for b1-710. hope you can help me. thanks :)

my device got BootLoop ! :( where i can download firmware for B1-710 iconia tablet :(
[Miscellaneous Android Development] janres155:
Is it possible to use Koush's Superuser or Chainfire's SuperSU for this root method? I think both of it have more better SU management and execution.
[Miscellaneous Android Development] DustArma:
That's because of the way filesystems work, it sees /system as a file and /system/ as a folder.
[Miscellaneous Android Development] nick_1964:
Managed to reset the permissions of the vold.fstab to read and write and then I could edit it.

It seems that the /etc directory is double protected.

I went to it with total commander and changed the permissions to read and write for all users, this works until the device is rebooted, after that it is reset to read only.

Then you can edit it, but I was hoping that the 4 GB internal then is used for normal apps.

Apps to SD can remove some apps, but not all, and my 1 gig internal memory is almost full.

Allso, it does not work with an SD card with NTFS, it must be FAT32.

After I set the vold.fstab to read and write, your toolkit will remove it properly, when I want to put the original back after a restart,I have to set the write permissions again.

It seems that the default user is not the owner, the default rights are:

Owner: read and write, Group: read, Everyone: read.

For some reasons, I am not the owner and root permission doesn't change that, it only gives me the opportunity to change the permissions so I can edit the file.

The script doesn't log in with owner permissions.

So case solved, hope you have something with this information.
[Miscellaneous Android Development] spljaa:
Hi,

Thank you for your comment. I'm not able to fully understand it, could You please elaborate, or provide me some link to explanation?

I've no Android experience, I'm using linux for quite some time, thus I might have some habits. Maybe wrong ones.

I did a test on rooted Samsung device, it is CM7.2, some older Android.

There I can remount with just /system, no need for / at end.

It would give me rather to conclusion that there is a bug in Android 4.2.2, as it tries to prevent rw on /system. But /system/ misses its check. Just a wild guess. And I would really like to know why it works. Yes I know, I can dig thru a code, but I hope someone can share ones experience.

Regards
[Miscellaneous Android Development] Wrightperspective:
Ugh...looks like I'm gonna need some direction. I am bootlooping because I must have flashed the wrong firmware. Is there a way to push a firmware back to my tablet or flash it from my micro-sd card? I feel like such a dork.

NEVERMIND - I tried to flash the update, got an error and rebooted and she started up. Phew. That was close.
[Miscellaneous Android Development] rivalsbhe:
how to root acer iconia b1 a71

good day guys.. i just successfully rooted my b1 a71 but i tried to install the rot verification and super su but it fails.. any suggestion what to do,thanks a lot
[Miscellaneous Android Development] Bunggye:
Hi. I'm caught in a bootloop with my B1-710 too. Which file did you use to load from the sd card? I don't have anything that can get me out of the bootloop. Thanks.
[Miscellaneous Android Development] entonjackson:
There are no recovery files for the b1-710 yet. Acer doesn't provide any.
[Miscellaneous Android Development] wbrambley:
On that subject, has anyone needed to use that recovery/update from Taiwan on their A1-810 posted a few pages back yet? If so please post so we know it does/does not work. It would be peace of mind for someone like me with a habit of breaking stuff. :D
[Miscellaneous Android Development] ppp10:
Discrimination regarding SD card OS update

I tried to use the update for the TWN_GEN1 available in the Taiwan website in my WW_GEN1 A1-810 stuck in boot loop, but the installation stopped saying my tablet was not TWN_GEN1.

I solved my problem at Acer's technical support, where they reinstalled the operation system under warranty. However, if I have another problem with the OS, I will have to pay the repair.

It's a shame that only TWN_GEN1 users are allowed to update the OS by themselves using the SD card...
[Miscellaneous Android Development] wbrambley:
That's a shame, wonder if we can make it work somehow. I'm thankful I don't need it yet. Is it possible to change a zip files contents without effecting the signature?
[Miscellaneous Android Development] SiqrCarnbon:
For Unlocking Bootloaders

Have you tried "fastboot oem unlock" ?
[Miscellaneous Android Development] laca752:
ACER A1-810 touch screen low sensitivity

Hello!

My problem low sensitivity touch screen.

It needs very hard press to start app or drag around.

Or scroll internet page Opera Classic,and no scroll after 2 sec.

If settings/developer/touch point----scroll no line,2 sec.

Touch firmware difference:

Image version: Acer_AV052_A1-810_RV18RC07_WW_GEN1

Build Version: Acer_AV052_A1-810_1.077.00_WW_GEN1

Firmware Touchscreen: FT0-840-13032500

Write user:new Touch Firmware:FTO-850-.......

Download?
[Miscellaneous Android Development] aragon257:
I'm stuck in a boot loop, but the rooting was successful and all the firmware matched. I tried this before and the same thing happened so after getting my tablet back I decided I would try again. I'm on the Iconia B710. Is there a final step that I missed or something?
[Miscellaneous Android Development] entonjackson:
No, this is enough.

Maybe the system.img.gz is corrupted? or download incomplete.

What do other B710 owners say?
[Miscellaneous Android Development] aragon257:
I probably bricked it somehow, not sure how though I checked everything before and it all matched. I guess ill send it back and give up on rooting for now.
[Miscellaneous Android Development] entonjackson:
what will work for sure is, if you root if from scratch. all you need is a linux live cd or vm
[Miscellaneous Android Development] aragon257:
Okay maybe Ill give that a shot when I get the tablet back, or is there still a chance it can boot? (This is my first android tablet, Ive had tv sticks and rooted them fine before).
[Miscellaneous Android Development] entonjackson:
as long as you don't have a firmware or update.zip... no.

regarding root these devices from acer, lenovo, etc. cannot be compared with chinese tv sticks, nexus devices, etc.

the way it's rooted is very risky, especially using system.img.gz
[Miscellaneous Android Development] dangerdevil:
A1 811

Hello,

i used your script to root my device (A1 811 3G-Version)

All seems ok, but the su binary has wrong permissions

ls -la /system/bin/sh

-rwsr-sr-x root root 366952 2013-09-16 21:40 su

all other files are root:shell

how in your script can i fix that the su binary gets right permission?

su gives me:

Permission denied.

Because /system ist mountet RO, i can't chroot the file or something.

Kind regards

Oliver

################

Update (17.09.2013)

OK, i was able to set the permission of the file right,

but when i type su in a shell, nothing happends, id of the user is not root.

need i another su binary for the a1 811?
[Miscellaneous Android Development] laca752:
I a1-810 bricked?

Yesterday:

I tried rooted, used copyiing Toolkit and "system.image.gz with /system RW workaround" and my little children pulled USB cable. Power on tablet, bootloop,ACER logo 10 minutes....

Is there a solution in origin system.image.gz was flash the tablet?

Power on+vol+,3e recovery yes, if you plug usb computer "MT65xx android device".

Or on recovery press"fastboot mode"?

How to problem solve?

Thanks.
[Miscellaneous Android Development] t-minik:
I just upgraded my A1-810 to the new OTA 1.105.00WW GEN1.

hope it will come with a good new about bootloader and rooting.

actually, rooting seem too dangerous to me...
[Miscellaneous Android Development] ricardombs:
Hi|

I'm trying to root my A1. Trying with windows 8. I'm stucked in a permissions problem. I searched but can't get over it. I ran toolkit in cmd as admin and with -d

Please take a look at the log
[Miscellaneous Android Development] EQUANCY:
Please people Sign it, freedom is a very necessary objective for everyone.

Show your help even you don't have it.

I'm sure Acer will consider our requests, It will also be a good example for other brands, which may you going to need.

https://www.change.org/en-GB/petitions/acer-unlock-bootloaders-of-acer-iconia-tablets-2
[Miscellaneous Android Development] entonjackson:
It seems I have to add Windows 8 compatibility.

Could you please do me a favor, download python 2.7 and start a python shell.

enter the following:

import os
print os.name

and post the output here.

apparently they changed this name in windows 8