yashsingh1/xdaforums huggingface dataset:
[Miscellaneous Android Development] bullbrand:
I think that maybe the bad partion error

maybe it's the 16gig has a different requirement

I recall when root came out how critical that was and pawitp was fearful it would

Break systems if it was different

Dave
[Miscellaneous Android Development] entonjackson:
Maybe the 16gb version will get different updates than the 8gb version, that's why updates don't work for certain users.

i could check if the line in dumchar_info contains 256 or 15e and in both cases root, but i don't want to brick devices.
[Miscellaneous Android Development] agentdeep:
Mine is 15e 8gb version
[Miscellaneous Android Development] nick_1964:
Big problem

I have an acer tablet v 05 and it rooted very fine with the image I download woth the one on page 1.

So, I bought another acer (8mb) and tried to root it but,

The firmware shows:Acer_Av051_B1-A71_RV04RC04_WW_GEN1

I found a link for an upgrade to R05 but that gives:

ERROR: - Invalid partition setting

17: fat 238e8000: 888e8000

Instalation aborted.

All the links in the forum to updates are dead.

So I need a proper firmware to upgrade to RC05 so I can use the 05 image, but that is not any more on any acer site.

When I try, about the device, software upgrade, it says: ok, you have the current software oid.

So I need an image file system.img04.gz file for RV04RC04_WW_GEN1 but again, all links are dead.

I am dyslectic, so I try again:

The second acer I have (new) runs on Acer_Av051_B1-A71_RV0RC04_WW_GEN1

It does not accept the upgrade i found.

I can't find a link to a working 05 firmware.

I cant find a link to a pre rooted system img ( system.img04.gz ) because all the links are dead.

I have only Windows 7.

The root tool would work fine if I had the system.img04.gz

I cant upgrade to 05 because ota says it is the last firmware, and I cant find a link to an system.img04.gz or a proper update 05.

I called acer to explain, hey, my first one is a 05 device, the second one a 05 device, can you help me with the latest update ?

No: there are minor differences, so now need to upgrade ( i counld not say, I need the a 5 for a root :angel:

So I am totally stuck on this one.

I try a swap of the device... hope to receive it today but if anyone could help me with a working update, or system.img04.gz so I can use the flash, then I am very pleased.

TIA.
[Miscellaneous Android Development] agentdeep:
prerooted img for RV04RC04 is on page 1
[Miscellaneous Android Development] entonjackson:
so you have 8gb and 15e.

you have not been able to update, right?

and you rooted your device successfully with the how-to for the 265 version, right?

does that mean your system.img.gz you created, is not compatible for people with the 265 version? I'm indeed confused.
[Miscellaneous Android Development] neutrale81:
my tablet has already updated at last version. before flashing it whit "stock rooted", i have read in the info menu the firmware version and it has "RV21RC02_WW_GEN1"... in this case, is not a problem of wrong version.
[Miscellaneous Android Development] twu2:
subprocess.call("sudo cp " + os.path.join("bin", "a1", "bin", "*") + " /media/iconia/bin", stdout=dev_null, shell=True)
subprocess.call("sudo cp " + os.path.join("bin", "a1", "app", "Superuser.apk") + " /media/iconia/app", stdout=dev_null, shell=True)
subprocess.call("sudo cp " + os.path.join("bin", "a1", "xbin", "*") + " /media/iconia/xbin", stdout=dev_null, shell=True)

It seems the above code not work like we want, it can't copy the file already exists, and it can't copy the sub-directory in xbin.

Use tar to copy the file should work like this:

subprocess.call("cd bin/a1; tar -cf - * | tar -C /media/iconia -xf -; cd ../..", shell=True)

or just put the tarball in toolkit directly, then just use tar to extract them in toolkit.
[Miscellaneous Android Development] entonjackson:
why use tar and not cp?
[Miscellaneous Android Development] twu2:
based on my test....

1. cp won't overwrite the file already exists (in /bin/, 1st cp command)

2. in the 3rd cp command to copy xbin, it will make the system full (I don't check why, but it did in my system).

3. if you prefer to use cp, make be use 'cp -a -f' or 'cp -dR -f' for this, it should work also.
[Miscellaneous Android Development] R@dist:
Has anyone an image for RV21RC03_TWN_GEN1?
[Miscellaneous Android Development] Calingo:
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[Miscellaneous Android Development] Grichecth:
Ahoy. Attempted to do a root with RV04RC01_PA_CA, when asked if it matched, the rooted version I used is RV04RC01, Now i'm in a boot loop. I assumed the last part didn't matter that much. I assume I now need to flash the stock firmware. Any idea where one would get that?
[Miscellaneous Android Development] twu2:
official rom? you can get the old version from acer taiwan site, then OTA to RV21RC03_TWN.

if you just need the system.img.gz, you can try this:

File: RV21RC03_TWN.rooted.img.gz

CRC-32: adbdcb27

MD4: cf7206efec5f47991e9c3f9d71639fc3

MD5: 5bf5706461b7941e9c7199c7b373b0e7

SHA-1: 007730b4c70106d86e14e8c88aeb551542442658

RV21RC03_TWN.rooted.img.gz

https://mega.co.nz/#!hNhAlYpI!Ka7ha02qf8peTj4HV_bF1XpXC_4mUgYwSURJlTsUoss
[Miscellaneous Android Development] t-minik:
Hi dudes .

Is it possible to update OP with root from

Scratch working procedure ?

It can helps some users and probably reduce redundant questions.

Best regards.
[Miscellaneous Android Development] entonjackson:
what is unclear?
[Miscellaneous Android Development] 888jonathan:
Page 185, there's my tutorial.
[Miscellaneous Android Development] Calingo:
Survived - Bootloop

About 2-3 Months Ago I Bricked My device By trying to install Custom recovery Which Could Cause Boot loop As mentioned In the Forum.

After Several Hours of Computing I was able to Get Out Of the Boot loop Successfully by flashing a Update.zip ( RV27RC03_WW_GEN1: )

Which did Not Fix The Whole thing but helped Me Overcome the Boot Loop Thing and i could Boot Up my device Well But the only problem Was the Lights of the tablet Going On and Off Again an again making the device unusable.So somehow I managed To reach The Settings :cool: and Fetch The Latest Update and Updated My device And It worked Fine. I could receive Updates As My Device Was No Longer Rooted Thanks To The Update.zip :good:
[Miscellaneous Android Development] entonjackson:
you should have read the faq, my friend.

No Custom recoveries. Or you get a bootloop. Was the CWM Recovery stated as compatible to Acer Iconia A1-810? No? So why did you flash it?
[Miscellaneous Android Development] treetop777:
I believe he/she meant Original "Post" as opposed to Original Poster.

How many times have you directed folks to your tutorial on page 185? That should be reference in the Original Post if it's proven to be of value. Also, there should be reference in the Original Post to the effect that trying to root the A1-810 at this time will not work or result in a bootloop unless there is a prerooted image available.

We have to realize that after a point, it is very unlikely people will read through 200 pages of posts looking for answers; and that's why you get the same questions over and over.

Keeping up-to-date relevant information in the Original Post would cut down on a whole lot of questions.

That's what *I* think he/she meant.
[Miscellaneous Android Development] entonjackson:
you cannot brick your A1, because i removed v0.7.5.
[Miscellaneous Android Development] entonjackson:
what about this tutorial?

it's for v0.7.5.

you guys told me root from scratch doesn't work for the A1.

so... what is the truth now actually?
[Miscellaneous Android Development] wbrambley:
7.3 and 7.4 worked for me doing 4 A1-810

Tablets.(root from scratch) Doesn't have system read/write but that's OK, until we have custom recovery it's a hell of a lot safer!

Haven't had a unit to set up since 7.5 came out..
[Miscellaneous Android Development] fREAST:
[MENTION=2332847]fezzawinkle[/MENTION]

Here is the latest xposedinstaller that i patched to work on my A1-810.
[Miscellaneous Android Development] old_art:
any1 with iconia a1-810 manage to root the device successfully???

update the 1st page with the guide on page 185 would be great
[Miscellaneous Android Development] Grichecth:
So I wanted to post an update with my issue. I couldn't track down any official firmware to fix my bad flash so I just exchanged it for a new one where I purchased. Does anyone know how I could rip my current system off of this one, so that others could flash the stock system in the event something were to go wrong?
[Miscellaneous Android Development] t-minik:
That's exactly what I mean (he) thank .
[Miscellaneous Android Development] 888jonathan:
I'm sorry that I forgot to edit my post. Root from scratch works for A1. As 0.7.5 was removed by you, users will have to apply R/W Workaround by themselves. I don't think there are problems with my tutorial, it was originally for 0.7.4.

---------- Post added at 04:25 PM ---------- Previous post was at 04:18 PM ----------

Please tell me about the problems you're facing so I'll be able to help you.
[Miscellaneous Android Development] entonjackson:
[MENTION=5452115]888jonathan[/MENTION] i added a link to your tutorial. thanks for that!

Let's see if there really will be less people asking for how to root from scratch... i must say, i really doubt it.
[Miscellaneous Android Development] 888jonathan:
Yeah, I know my tutorial isn't that user friendly.
[Miscellaneous Android Development] entonjackson:
That's not what i meant. Your tutorial is fine.

But 90% of the users don't read. That's the problem.
[Miscellaneous Android Development] fnldstntn:
help

i'm getting this error...can you help me?
[Miscellaneous Android Development] entonjackson:
Run as administrator.
[Miscellaneous Android Development] shantusingh:
Friends I bought sandisk 8gb class 10 ultra mobile micro sd . Where :

Write is 13 MB/s and

Read is always around 17.99 max MB/s .

I installed different sd boost which shows this external sd card to be able to boost, I did 512,1024,2048, etc (kept option ticked apply on boot and everything) even used from system tuner... with root but no change as I want read speed to increase .

Any idea what to do ?!
[Miscellaneous Android Development] fnldstntn:
The same problem continues.
[Miscellaneous Android Development] entonjackson:
system.img.gz is in the folder system_image?
[Miscellaneous Android Development] fnldstntn:
yes...
[Miscellaneous Android Development] t-minik:
You're right but you'll get 10% less of redundant questions, that's it

and i persist, if your wonderful toolbox could only extract System.img (instead of stopping tollbox at the right time) it could be awesome for those who want to use 888jonathan procedure.
[Miscellaneous Android Development] shantusingh:
do it like this buddy :

as you see in step one the folder system , copy paste the system.img file there .

Then open the tool kit and do the steps!
[Miscellaneous Android Development] fnldstntn:
it is already.
[Miscellaneous Android Development] shantusingh:
Anyone that can help me regarding the external sd read speed boost ?!
[Miscellaneous Android Development] 123vasek:
Hello! I have a Acer 811. Got root via Ubuntu and toolkit 7.0.4. Superuser "#" (ClockworkMod) worked but did not update SU.

Root uninstaler worked correctly but did not work Adaway, when installing Hosts Adaway there was an error. SU decided to update manually. After this root is missing. Redid get through Ubuntu and toolkit 7.0.4. but it fails Can anyone tell me what to do thread to return the root or just wait unlock bootloader???

Sorry for my bad English, wrote via Google Translate))
[Miscellaneous Android Development] shantusingh:
lol figured out myself .... I swapped internal to external then applied sd speed boost and read going to 27 MB/s and its decreasing(like give n take lol) 0.1 to 0.2 of write speed .

Now the problem is I've heard actually it doesn't do any changes and either reduces the app speed if we do changes with cache .

Default internal is already fast but low memory and external being on default in more memory but slow read, but high write speed .

Now what i'm going to do is install apps and play them if no lags or slowness then kool I just got more memory for apps .

And all videos, images, etc to external storage (which is actually default internal)
[Miscellaneous Android Development] 888jonathan:
You couldn't update your su binary was because there's something wrong with the current version of clockworkmod's superuser. You will have to apply the R/W Workaround so that you can use adaway, my tutorial's on page 185. With R/W Workaround, you will also be able to update su binary with supersu. Adaway does not require an unlocked bootloader. Feel free to ask questions, I also own an A1-811.
[Miscellaneous Android Development] Rhodos:
B1 - 711?

will this Method work with B1 - 711?
[Miscellaneous Android Development] entonjackson:
Please give me the content of /proc/dumchar_info... Then I can tell you.
[Miscellaneous Android Development] Rhodos:
C:\android\sdk\platform-tools>adb shell

shell@android:/ $ cat /proc/dumchar_info

cat /proc/dumchar_info

Part_Name Size StartAddr Type MapTo

preloader 0x0000000000c00000 0x0000000000000000 2 /dev/misc-sd

mbr 0x0000000000080000 0x0000000000000000 2 /dev/block/mmcblk0

ebr1 0x0000000000080000 0x0000000000080000 2 /dev/block/mmcblk0p1

pmt 0x0000000000400000 0x0000000000100000 2 /dev/block/mmcblk0

pro_info 0x0000000000300000 0x0000000000500000 2 /dev/block/mmcblk0

nvram 0x0000000000500000 0x0000000000800000 2 /dev/block/mmcblk0

protect_f 0x0000000000a00000 0x0000000000d00000 2 /dev/block/mmcblk0p2

protect_s 0x0000000000a00000 0x0000000001700000 2 /dev/block/mmcblk0p3

seccfg 0x0000000000020000 0x0000000002100000 2 /dev/block/mmcblk0

uboot 0x0000000000060000 0x0000000002120000 2 /dev/block/mmcblk0

bootimg 0x0000000000600000 0x0000000002180000 2 /dev/block/mmcblk0

recovery 0x0000000000a00000 0x0000000002780000 2 /dev/block/mmcblk0

sec_ro 0x0000000000600000 0x0000000003180000 2 /dev/block/mmcblk0p4

misc 0x0000000000080000 0x0000000003780000 2 /dev/block/mmcblk0

logo 0x0000000000300000 0x0000000003800000 2 /dev/block/mmcblk0

expdb 0x0000000000a00000 0x0000000003b00000 2 /dev/block/mmcblk0

android 0x0000000040000000 0x0000000004500000 2 /dev/block/mmcblk0p5

cache 0x000000002bc00000 0x0000000044500000 2 /dev/block/mmcblk0p6

usrdata 0x0000000160220000 0x0000000070100000 2 /dev/block/mmcblk0p7

bmtpool 0x0000000001500000 0x00000000ff3f00a8 2 /dev/block/mmcblk0

Part_Name:Partition name you should open;

Size:size of partition

StartAddr:Start Address of partition;

Type:Type of partition(MTD=1,EMMC=2)

MapTo:actual device you operate
[Miscellaneous Android Development] entonjackson:
Same partition info as the A1-810 and A1-811.

You will have to "root from scratch" under linux.

To have full Read/Write Permissions for /system partition you will need to apply the workaround

I'm now about to write a v0.7.6. You can either wait until it's finished or try v0.7.4 and choose A1-810 as your device. should work!

EDIT: Please give me the content of /system/build.prop also, please.

v0.7.4 won't by the way, because of this info.
[Miscellaneous Android Development] Rhodos:
is it necessary to do the workaround?

C:\android\sdk\platform-tools>adb shell
shell@android:/ $ /system/build.prop
/system/build.prop
/system/bin/sh: /system/build.prop: can't execute: Permission denied
126|shell@android:/ $
[Miscellaneous Android Development] entonjackson:
adb pull /system/build.prop
notepad build.prop

this is not needed for the workaround, only for checking firmware and giving info to the user.

regarding the workaround. in this next version i try to do the steps of the workaround properly, so it's finally no more needed for users to apply the workaround manually.
[Miscellaneous Android Development] entonjackson:
tomorrow i will release 0.7.6
[Miscellaneous Android Development] Rhodos:
ok, thanks for your`re nice work :)
[Miscellaneous Android Development] Cavachier:
Does this app : https://play.google.com/store/apps/details?id=com.jrummy.apps.rom.installer can install Custom ROM on our iconia tablet ?
[Miscellaneous Android Development] dlugaz:
Firmware images needed

I bought my B1-A71 from second hand and they delivered with really weird firmware. It doesn't really have any Google applications, can't install Google Play nor Maps...

Build number is "Girodano_Acer_CSD_use_only_V0001". I tried to update system with original firmware I found on the net : OS_Acer_Acer.AV051.B1-A71.RV05RC05_A41JA42J_A, and OS_Acer_AV051.B1-A71.RV03RC05.WW.GEN1_A41J_A but the recovery mode won't let me (Installation aborted).

My idea is to update my firmware via SP_Flash_Tools with original images, but I can't find them anywhere on the net.

So now my request, can anybody make a backup of firmware with MtkDroidTools and post it so I can install official version ? It takes really like 15 min, and there isn't a way you can brick your tablet, it's only copying from tablet to PC. REMEMBER to uncheck "Backup userdata and cache", I don't need your stuff :), I just need system.img, boot.img, recovery.img and logo.bin. You can also post, preloader.bin, DSP_BL, MBR and EBR1, cause if it won't work only with the first ones, I will try with flashing all.

If you think also it's a bad idea to do it that way, please post also before I brick my device :).

You can find all the tools on XDA and internet.
[Miscellaneous Android Development] NguyenXuanBang:
Acer A1-811 has been bootloop after trying to root.

My tablet Acer A1-811 has been bootloop after trying to root by this tool. I tried to find the stock ROM but cannot. Now I cannot startup the tablet. Please help me!
[Miscellaneous Android Development] entonjackson:
Releasing v0.7.6

======

- Supporting B1-711

- A1-810/A1-811: support root with /system Read/Write permissions

New attempt to apply workaround using tar instead of cp.

Please volunteers test this new version.
[Miscellaneous Android Development] fnldstntn:
i have this problem now...:confused:
[Miscellaneous Android Development] Grichecth:
Posting again.. Hopefully someone will see my messages this time. I would very much like to root my B1-710 but I cannot stop getting boot loops. On my third tablet now and would rather not just keep throwing system.img's at it and hoping for the best, Haha. Any ideas why I can't get mine to root/anything you need from me to proceed? Also, in reference to my second quote, is there a way yo rip my current stock system in case something goes wrong again?
[Miscellaneous Android Development] fREAST:
Answering you second question: No.

Even if you get your untouched system there is no way to flash it back since the bootloader is locked (meaning no custom recovery to flash zips etc).
[Miscellaneous Android Development] entonjackson:
sudo apt-get install gunzip
[Miscellaneous Android Development] :
Could this tool support the newly released A3-A10 using the root from scratch method?
[Miscellaneous Android Development] entonjackson:
It could, if you give me the content of the following:
[Miscellaneous Android Development] :
Don't have one at the minute, just thinking of buying one, if I do I'll post the content ;)
[Miscellaneous Android Development] 123vasek:
I get an error E: Unable to locate the package gunzip
[Miscellaneous Android Development] entonjackson:
or maybe its gzip instead of gunzip.

make sure the command 'gunzip' is available on your system afterwards.

if you dont get it installed, try ubuntu 32 bit. there it's installed by default.
[Miscellaneous Android Development] R@dist:
Great, thank you. Successfully rooted my A810. I think this should be added to A810 downloads list.
[Miscellaneous Android Development] entonjackson:
yes, of course. missed it somehow.

thanks [MENTION=2109242]twu2[/MENTION]
[Miscellaneous Android Development] treetop777:
I think i managed to apply the S/W workaround to my system image using 888johnathan instructions but not being familiar with Linux, i don't know if the last line in terminal indicate it was successful. namely, i'm concern about the "40.2%" it's showing. I would rather see 100%.

Thanks for any response.
[Miscellaneous Android Development] treetop777:
Rooted! A1-810

Finally! Thanks to OP's toolkit and the R/W workaround how-to from 888Johnathan, i managed to gain root access on this A1-810!! :good::victory:

Even though there's a new version of the toolkit, I decided to go a safer way since my first A1 was Bricked.

Right now i'm waiting for Dropbox to sync so i can share the rooted image.

Some pointers for those who want to try it:

- Use the how-to on post 1843 (also linked in the first post under the A1-810 files).

- The how-to is based on Lubuntu so i recommend that. Use any other Linux distro if you want. I also recommend HARD installing Linux to give it access to a lot of space on the hardrive so it can read/write unrestricted. My first attempts failed when using the live CD.

- DON'T RUSH WHEN IN TERMINAL! After some commands, there is a pause (about 1 minute) so always WAIT to get a prompt again before typing another command and wait for the prompt again.

- @ 888Jhonathan - in step 5, the fist line references system.img.GZ and the the example doesn't have the .GZ at the end. I would suguest removing the .GZ from the fist line so it won't be confusing to us Linux challenged. :confused:

- Pay attention to the command in step 8, it's NOT u*n*mount, it's umount (without the "N"). I lost count of how many times i missed that.

- Don't get desperate. the fisrt prerequisite is to extract the image from the tablet using to toolkit; do not abort the process to early. Abort it (ctrl+c) only after it starts to write the image back to the tablet after it has extracted the image from "the phone".

- I was concerned the first time i tried the workaround it showed 40% at the end, this time it showed 32% but it still work so i don't think you should expect to see 100%

- After reapplying the rooted image with the toolkit and rebooting the tablet, i saw a message for a few seconds that "Android was updating" and as soon as it got to the home screen, i got a message that superuser had been updated.

- Right after reboot, i granted root access to something (i think it was to superuser) but when i looked for the icon in the app tray it wasn't there, so i went to the market to install it but it gave me some kind of failure. However, the icon is the now and there is root access.

I was able to grant root access to Titanium Backup and FX File Explorer and Root Explorer and they all work fine. Now i can freeze some bloat and do some other tweaks.

Thanks to OP and 888Johnathan for your help and patience. and thanks as well to all the other who chimed-in.

i will upload the image shortly.

---------- Post added at 08:01 PM ---------- Previous post was at 07:10 PM ----------

Rooted Image Version for A1-810: Acer_AV052_A1-810_RV26RC06_PA_CUS1

https://www.dropbox.com/sh/emkyaqyv1dlpa

Enjoy!

EDIT: See post 2103 for new link.
[Miscellaneous Android Development] entonjackson:
I suggest to choose another place to share that image, unless you want to get emails from dropbox informing yuo about your shared files disabled temporarily because too many people access it.
[Miscellaneous Android Development] foruma:
Hi Enton,

I'm new here! Thanks for your kindness to share this good rootkit.

I just bought a B1-710 yesterday, googled and found your forum site.

I have rooted my tablet with the method you taught. Thanks a lot.

However I just can not change my Internal storage to External and vice versa.

I have use the kit to do, the message shown that everything is run smoothly and complete perfectly, but when I check my tablet storage,

it still maintain the original.

Please help.

Thanks again in advance.

Regards,

DAN
[Miscellaneous Android Development] entonjackson:
Thanks for the warm words.

Could you take a look at the /etc directory. there should be a vold.fstab.

Is there a vold.fstab.nandroid as well?
[Miscellaneous Android Development] Ollemedo:
Hello!

I just tryed to root my acer A1 810 and got stuck in a boot loop.

Can I save it or is it dead?

/Beginner at rooting