yashsingh1/xdaforums huggingface dataset:
[Acer Iconia One 8] dj_aj:
Oh yeah, the camera still works and the tablet is going strong without any issues so far. Just make sure to use the newer beta SuperSu.
[Acer Iconia One 8] Euclid's Brother:
Anything work on A1-860 that comes stock with Lollipop? Haven't bought it yet, just wondering if it's rootable.
[Acer Iconia One 8] dudeman1st:
Hopefully solved: footer & signature install failure

I believe that I have discovered the solution to the "wrong footer" "signature failed" problem for the stock firmwares for the A1-840 (HD). If you have this problem with either the stock recovery (which will give you a verbose message that the signature failed because the footer is not correct) or with CWM (tethered), the firmware will simply fail to install. I have tried every stock firmware I can find, and you can try either of the following:

1) Install SDs_Acer_A1-840_AV0K1.RV00RC00_AV0K1.RV0ERC02_WW_GEN1 (normal English lang ROM) OR SDs_Acer_A1-840_AV0K1.RV00RC00_AV0K1.RV0LRC01_GC_GEN1 (a Chinese lang ROM - it's full of chinese bloatware, wouldn't advise on installing it). These ROMs have worked for me in stock recovery.

2) Extract the update.ZIP from any of the stock firmwares. To do this, use a good explorer (like ES Explorer). Find the ZIP file. Use the explorer's extract function to look inside the zip and extract the "update.ZIP" file out of the firmware ZIP. I have only tried this with SDs_Acer_AV0K1_A1-840_RV0ZRC03_WW_GEN1.zip so far, but I bet this will work for all stock firmwares. For example: navigate to SDs_Acer_AV0K1_A1-840_RV0ZRC03_WW_GEN1.zip > explore the ZIP file > extract "update.zip" > place the "update.zip" on to your external SD card > install from stock recovery.

Two caveats: I have only tried this second method with SDs_Acer_AV0K1_A1-840_RV0ZRC03_WW_GEN1.zip and I haven't tried installing from CWM tethered yet. But I got both of these methods to work, so I wanted to post the solution asap. I will update when I try all other methods and firmware. I have to strip bloatware and make a recovery first! :D I am guessing that the second method will work for FHD models too. Please reply if you get it to work for A1-840FHD.

Note that, if you are in a bootloop and can get to stock recovery on the A1-840 (HD), you can probably use this method to unbrick and get a stock ROM installed. This worked for me.

---------- Post added at 02:44 PM ---------- Previous post was at 01:52 PM ----------

If you are unable to update to the OTA, you can install a new stock firmware and immediately update/patch to the latest firmware, which is RV15RC01. Don't root first! I have tested the tethered CWM and root with Superuser and both work with RV15RC01. Full update name is Acer_AV0K1_A1-840_RV15RC01_WW_GEN1. This method will not preserve your current install of user data, but at least you will be on the latest OTA. I am guessing that, if Acer updates the stock recovery, we will not be able to use tethered CWM anymore, as it appears to use recovery/fastboot as an exploit.
[Acer Iconia One 8] edotcom:
Just wanted to let you know i have confirmed ROOT using Boot Tethered CWM method on Acer A1-860.
[Acer Iconia One 8] descarte:
I am wondering how you get ADB connection. I can get fastboot connection. However, in ADB mode, It mentions no devices. I have to transfer [MENTION=443445]Sher[/MENTION]ps 's NAND backup file to fix my bootloop problem as you did. So far, there is no way to copy it to internal memory without ADB connection.
[Acer Iconia One 8] dawgdoc:
You may have success flashing with fastboot. I did when I borked the recovery on my A1-830. To do so you would need to unzip the rom file and flash the individual files that are needed. (system.img, recovery.img, etc.) There are complete instructions in the adb and / or fastboot threads. If needed I can search for links.
[Acer Iconia One 8] dawgdoc:
That's great to hear. Way to go.
[Acer Iconia One 8] redcat30:
Hello

Its work on b1-830 tab? If not, then How can I root my b1-830 tab? I search, but i dont find anything...

Thx
[Acer Iconia One 8] dawgdoc:
I've heard of the B1-710/B1-720/B1-7310 devices but not the B1-830.

Check here if you have a computer with a Linux OS.

Check here if you have a computer with Windows.
[Acer Iconia One 8] redcat30:
Thx, but b1-830 is not intel cpu, in b1-830 have mediatek MT8151V chip.

Somebody know, how to root B1-830?

Thx
[Acer Iconia One 8] LivinOne:
I just got an A1-840FHD and want to Root & install CWM but all the links for the Perm Install are dead... can someone please post the needed files? Thx for the help!

CWM for A1-840 FHD (only) based on Dell Venue 8 one. (http://xdaforums.com/dell...overy-t2866925)

Tested successfully.

CWM : http://bit.ly/A1-840FHD_CWM

Recovery stock : http://bit.ly/A1-840FHD_StockRecovery

ADB + Fastboot for Intel devices : http://bit.ly/ADB_Fastboot_Intel (use this to flash)

To flash it :

Code:

fastboot flash recovery CWM-v6.0.3.7_A1-840FHD.img

Then use droidboot menu to reboot in recovery.
[Acer Iconia One 8] nikagl:
Well... the thread for DELL Venue 8 you can find using google: http://xdaforums.com/dell-venue/general/dell-venue-8-cwm-unsecure-boot-recovery-t2866925

Here's mirrors for the others:

ADB_Fastboot.zip

CWM-v6.0.3.7_A1-840FHD.img.zip

stock_recovery.zip

Regards,

Nika.

---------- Post added at 03:09 PM ---------- Previous post was at 03:08 PM ----------

@shreps, can you update FP?
[Acer Iconia One 8] Shreps:
Yep, done
[Acer Iconia One 8] LivinOne:
Thank you guys!!! I'm rooted and have CWM installed.

Big question now is... any ROMs available to flash? I did some searches and have not found anything.
[Acer Iconia One 8] nikagl:
Haven't seen any yet...
[Acer Iconia One 8] sxrmafia:
Successfully rooted and installed CWM on Iconia Tab 8 A1-840FHD :)

I don't see any custom roms on XDA compatible with this device , if you know any custom rom's that work well kindly let me know as well. Any tweaks or mods etc count as well. Thanks for the awesome and detailed guide :)
[Acer Iconia One 8] XXCoder:
Successfully rooted my acer a1-840fhd using method #3. Too bad there is no nice linux method. :( I had to use virtualpc with windows xp to do it.

I'd have simply used fastboot flash recovery (cwm) but for some reason fastboot never detects device at all, even though linux itself does, AND adb does.
[Acer Iconia One 8] vampirefo:
Linux version

http://xdaforums.com/android/development/linux-version-twrp-2-8-6-0-tethered-t3123075

http://xdaforums.com/dell-venue/general/linux-tethered-cwm-recovery-version-t2963104

fastboot works just fine as long as you have the correct fastboot binary which is supplied in Linux version.
[Acer Iconia One 8] dawgdoc:
The tethered-cwm created by [MENTION=2472806]vampirefo[/MENTION] worked well with two Acer A1-830 devices for me using LinuxMint.
[Acer Iconia One 8] XXCoder:
Nice! Will use if there is further need to.

I wonder if there is any post- 4.4 roms for 840FHD?
[Acer Iconia One 8] readable:
Thanks. Worked on my new FHD840 (at costco).
[Acer Iconia One 8] DNS-EN:
Its because windows installs an mtp driver which will allow data transfer but wont work with fastboot. You need to edit the android_winusb.inf in /extras/google/usbdriver and add your device hardware id to the inf then disable driver signing in advanced startup and manually install the driver then fastboot works :D
[Acer Iconia One 8] kakang23:
Can anyone help me on how to root my Acer Iconia One 8 B1-830? Cant find any instructions on xda and even on google search. :confused: Thanks. :o
[Acer Iconia One 8] Shreps:
This thread is dedicated to the Intel generation of Iconia One 8.

The B1-830 one is an MTK one. I will try to look at it soon.

Envoyé de mon One+
[Acer Iconia One 8] kakang23:
Wow! Thanks Shreps! I will be waiting for your response. Hope you'll be able to help me. I appreciate it so much! Thanks!
[Acer Iconia One 8] Shreps:
I was already working on this before you ask

and TADA, it's done ;)

Look at the other section of this forum : http://xdaforums.com/iconia-one-8/development/recovery-twrp-2-8-5-0-acer-iconia-one-8-t3295446
[Acer Iconia One 8] Sherip:
I successfully rooted an A1-840FHD using method 2. Worked well on Windows 10 x64. I had Acer's USB driver and had installed it with driver signature enforcement disabled. Now I have a question about stock updates for this unit. I've never had any OTA updates detected, yet I frequently see posts stating their Android version is 4.4.4. Have I missed some update that should be flashed? My "About Tablet" shows:

Android version: 4.4.2

IAFW Version: 0007.0043

Kernel version: 3.10.20+

Image version: Acer_AV0K_A1-840FHD_RV0TRC01_WW_GEN1

Build number: Acer_AV0K1A1_840FHD_1.057.00_WW_GEN1

Image P/N FM.NNR0.016
[Acer Iconia One 8] kakang23:
Whoa! You are so great Shreps!! Thank you so much! I will try it ASAP!! Thanks!

I am currently stuck at SP Flash Tool, does it really take that long to finish?
[Acer Iconia One 8] Shreps:
If the flashing doesn't start, it means you didn't install the MTK Preloader Drivers properly.

Before starting the guide, you should test if when you plug your device while it's turned off, the device is recognized has a COM MTK.

PS: post in the Q&A section of the appropriate thread.

Envoyé de mon One+
[Acer Iconia One 8] Caporeira:
Is this solution good and works?

http://rootandroidguide.com/root-acer-iconia-one-8-b1-820-with-farmaroot-boromir-without-pc/
[Acer Iconia One 8] Ozark_8125:
Have you tried it?
[Acer Iconia One 8] Caporeira:
Not yet, and you?
[Acer Iconia One 8] HADES0190:
will this work on Model B1-830? i don't want to try it yetwithout confirmation because i don't want to brick my tab haha
[Acer Iconia One 8] XXCoder:
It's linux system fastboot that cannot detect device in fastboot mode... windows xp one worked just fine. Linux could detect device but fastboot just don't work.
[Acer Iconia One 8] Mik26:
Hi guys, can you help me please, i`m in a big problem.

My tablet A1 830 is stuck in boot loop, hard reset from recovery didnt help. I tried to flash SDs Acer_AV0K0_A1-830_RV01RC02_WW_GEN1.zip and SDs_Acer_AV0K0_A1-830_1.007.00_WW_GEN1.zip ( put zip file on sd card, rename to update.zip but it didn`t work out).

My curent software version is Acer_AVOKO_A1-830_1.008.00_WW_GEN1 and it`s newer then this one i tried to flash with.

Doe`s anyone possibly have appropriate software for SD update?

PS. I can`t load fastboot so update from recovery is my only solution (i think :( )

Regards and thanks
[Acer Iconia One 8] Haxatom:
I rooted using second option but now my FHD840 reboot once after i press power button.

Hi, can any one please tell me how can i put the stock firmware back. Any step by step instruction will be appreciated. Also please let me know which file should i use.

Much appreciated
[Acer Iconia One 8] gohugganutt:
iconia A1-860

Hey I have tried the rooting methods listed in this thread but it seems that the tablet is locked. Has anyone had any luck with this model tablet ? Any help would be great .....
[Acer Iconia One 8] CSP III:
Which model??
[Acer Iconia One 8] gohugganutt:
Iconia tab 8

I own model A1-860 .... thank you for your help, also tried kingroot but no good
[Acer Iconia One 8] Shreps:
Guide 2 and Guide 3 from my FirstPost should work. as confirmed by other users with your model.

Envoyé de mon One+
[Acer Iconia One 8] lrdrvr:
Rooted A1-840FHD. Worked well. Thank you very much for the thread.

One issue that I encounter is that the tablet reboots when pressing the power button instead of just powering on.

Any ideas on how to resolve this are highly appreciated.

Thank you very much. ☺
[Acer Iconia One 8] nikagl:
Can you explain this? When the tablet is powered off and you press the power button, both rebooting and powering on sounds to me to be the same?
[Acer Iconia One 8] lrdrvr:
My apologies for not being more detailed and clear in my post.

What I meant to address is waking the tablet from sleep or hibernation.

After 5 minutes of not using it it's going into sleep/hibernation mode.

Pressing the power button once used to just wake it up. But now it wakes up showing the desktop then restarts/reboots instead of just waking up.

I hope this makes a little more sense now.

Thank you very much. ☺
[Acer Iconia One 8] nikagl:
Ok, that's really not ok. Strange. Any other A1-840FHD users that might be able to shed a light? Which root (SuperSU) did you use?
[Acer Iconia One 8] lrdrvr:
I used BETA-SuperSU-v2.67-20160121175247.zip

Would unrooting and "re-rooting" possibly help?

Or copy a different SuperUser version on the SD card?

Thank you very much. ☺
[Acer Iconia One 8] nikagl:
I haven't seen this before, so I don't know. Maybe someone else?

In my case I would definitely try:

* Unroot (you can do this from SuperSU). Still problem? Then it's not root but something else you did

* Root with other version. Solved? Then it's this specific SuperSU version...

Etc.

Good luck :)
[Acer Iconia One 8] lrdrvr:
I'll try those options and will update this post next week.

It'll be a few days as I'm away from home travelling.

---------- Post added at 07:23 PM ---------- Previous post was at 07:22 PM ----------

I'll try those options and will update this post next week.

It'll be a few days as I'm away from home travelling.
[Acer Iconia One 8] nimranimra:
Hi everyone

was somebody able to root an Acer A-860 ?? If so, please let me know how it was possible...

I couldn't root mine following the instructions posted here :(

thanks in advance
[Acer Iconia One 8] lrdrvr:
Alright, back home and trying to trouble shoot some more...

I tried to update the binary of the SU version I was using (2.67). But that was unsuccessful. All I got was error messages. Next I tried to install the last 'stable' SU version (2.65) but that installation didn't work either.

Finding update package

opening update package

verifying update package

E:failed to verify whole-file signature from /cache/sideload/package.zip

E:signature verification failed

installation aborted

Apparently, SuperSU just doesn't run right on my device. I'm probably screwing it up somehow. :crying:

I suppose I'd like to unroot the device and install the factory settings again. Problem is I have no idea on how to do just that...:confused:

---------- Post added at 04:57 PM ---------- Previous post was at 04:37 PM ----------

Alright, wiped all data. Factory reset. And I still have the powering up issue....

Looks like I screwed up my tablet for good.

The issue seems to be that the app 'Acer Touch Wakeup' has stopped functioning or is missing.

So, here's the next question: How can I fix/reinstall the 'Acer Touch Wakeup' app?
[Acer Iconia One 8] Shreps:
About the Flashing Errors : you cannot flash SuperSU from the Stock Recovery. Only from CWM or TWRP (following the guide to boot it)

About your system errors, you should flash a stock Firmware through the Stock Recovery. (zip available on FP)
[Acer Iconia One 8] lrdrvr:
I suppose the best course of action would be to first flash firmware and then root again from scratch and I'd like to do just that.

The issue I have with the firmware is that the firmware from page one is different than the image on my device.

These are the FW options:

SD_Acer_A1-840FHD_AV0K1.RV00RC00_AV0K1.RV0BRC01_WW_GEN1.zip

SD_Acer_A1-840FHD_AV0K1.RV00RC00_AV0K1.RV0MRC02_WW_GEN1.zip

SDs_Acer_AV0K1_A1-840FHD_RV0TRC01_WW_GEN1.zip

My device has this one installed:

Acer_AV0K1_A1-840FHD_RV0WRC01_WW_GEN1

Build number:

Acer_AV0K1_A1-840FHD_1.062.00_WW_GEN1

Which one would you pick if any? Odds of success? :confused:

Anyway, I'm convinced that the root (Guide 2) works flawlessly with my A1-840FHD and that the error I encountered have to do with me making a mistake.

Most likely I inadvertently removed the Acer Touch Wakeup App without being aware of the far reaching consequences of doing so.

'Merci beaucoup' & 'dank U wel' to you and nikagl for your help with me screwing things up. You guys are awesome! :)
[Acer Iconia One 8] Shreps:
I think flashing SDs_Acer_AV0K1_A1-840FHD_RV0TRC01_WW_GEN1.zip should be ok on your case.

It's an older firmware, but should work fine, next you will have the OTA pop update to upgrade to your current version.
[Acer Iconia One 8] lrdrvr:
I'll try that and will update this tread.

Thank you again. :)
[Acer Iconia One 8] lrdrvr:
Well, no luck...

I'm unable to get the firmware via stock recovery installed.

-- Install /sdcard ...

Finding update package...

Opening update package...

Verifying update package...

E:end of footer from /cache/sideload/package.zip not 0xFFFF (File exists)

E:signature verification failed

Installation aborted

Ideas? Thanks! :)
[Acer Iconia One 8] mikekoz:
Tried this on my Acer A1-850 and it does not work. It boots up in "Droidboot". which I guess is the stock recovery. I am on Android 4.4.4. The errors I get are:

"Failed to mount device "/dev/block/sda1" "

"Installer device ignored" (twice)

"Could not open " /sys/devices/virtual/backlight"

Ant ideas!!??
[Acer Iconia One 8] gohugganutt:
acer a1-860 root

I have the same tablet and the same problem. I have followed the steps to root this tablet but cwm will not boot up, just the stock recovery. If you have any luck please post your results. Thanks in advance.
[Acer Iconia One 8] ywamissionary:
root A1-860

I just bought one from BestBuy and the root instructions didn't work for me, how did you manage root?
[Acer Iconia One 8] Shreps:
Hi

Did you try guys the Guide3 on your tabs?

That possible Acer made an update that breaks with Guide2.

Envoyé de mon One+
[Acer Iconia One 8] gohugganutt:
Acer iconia tab 8

Yes I tried all three methods and only #3 seems to partially work. It says everything wa ok but cwm recovery did not boot up. The other two methods came back as error.
[Acer Iconia One 8] plume26:
Unlock the bootloader Acer Iconia B1 810

Hello,

I have my router tablet ACER Iconia One 8 810 B1 through your tutorial and I thank you very much for your help.

I now want to unlock the bootloader , and can you help me?

Eventually I would like to install a custom rom .

Thank you for your answers and waiting , my cordial greetings
[Acer Iconia One 8] jhofseth:
rooted A1-860 in linux

I rooted A1-860 in Linux. I had to use trigger option 4 (probably not applicable to Windows version but not sure). If I remember correctly, I used scripts found elsewhere that were specific to Linux but combined that with the CWM recovery image for Intel atom CPU provided in this thread.

Also, I tried pseudo-unlocking bootloader with "itsmagic" binary after modifying boot partition (had to compile source code since binary is for ARM not Intel processors, use binary in Linux on backed up copy of /dev/block/mmcblk0p7 and flashed modified /dev/block/mmcblk0p7), which basically modifies /dev/block/mmcblk0p7 (7th partition) but this not only did NOT work but it ERASED fastboot. Huge headache. That leaves Intel's DnX mode as the only pseudo-fastboot option, then you have to install Intel's flash software because Acer does not yet provide stock ROM for A1-860. I was able to use Intel's flash tool in Windows 10 (Linux version failed) to successfully boot unmodified/backed up fastboot partion (what was /dev/block/mmcblk0p7), which booted the tablet into regular fastboot mode. I then used fastboot in Linux to flash backed up copies of boot partition and /dev/block/mmcblk0p7. Unbricked tablet! Now, I refuse to mess with /dev/block/mmcblk0p7. Bootloader is still locked, so any changes to boot partition result in booting to stock recovery....pointless, because you then have to flash unmodified boot image with fastboot to restore regular Android boot. I hope someone unlocks A1-860 bootloader, but that won't be me as I don't use Windows so cannot take risks as that might necessitate having to temporarily install Windows 10 to use Intel's flash software, again. Oh well, at least it's rooted--just not bootloader unlocked. :)
[Acer Iconia One 8] social-design-concepts:
This sounds like a full uefi devices if secureboot is disabled it might be possible to run an insecure / unlocked bootloader
[Acer Iconia One 8] jhofseth:
A1-860 Linux fastboot commands to boot tethered CWM (intel version)

These work for A1-860 in *Linux*:

https://www<dot>dropbox<dot>com/s/sj05hrftjiu7ur8/cwm_standalone_intel_linux.zip?dl=0

(copy URL to your browser but replace the two <dot> parts with periods)

unzip cwm_standalone_intel_linux.zip (i.e., see first page of this thread) to your Linux PC's working directory

install fastboot if you haven't already

install adb if you haven't already

enable tablet's USB debugging in settings/developer options (click on settings/about tablet/build number a bunch of times to get developer options)

connect your A1-860 via USB

*in Linux terminal* (I ran as root, not sure if it matters):

adb start-server

(authorize your PC when dialog pops up on your A1-860)

cd ./cwm_standalone_intel_linux

(cd into the extracted folder, wherever that is; the above works if you extracted it to your home directory or you're in the same directory as the extracted folder)

sudo bash

(if you want to run as root--probably unnecessary)

ls

(you should see recovery.zip, etc., listed, if not then cd to whatever directory you extracted it to)

adb reboot bootloader

(after it reboots and you see the fastboot screen)

EITHER (1) TYPE:

./trigger 4

OR (2) TYPE:

fastboot flash /tmp/recovery.zip ./recovery.zip

fastboot flash /tmp/recovery.launcher ./recovery.launcher

fastboot oem start_partitioning

fastboot flash /system/bin/logcat ./fbrl.trigger

fastboot oem stop_partitioning

Now, CWM should boot up and you can install the superuser package that roots your A1-860 (linked on page one of this thread; save it to external micro-SD card inserted into A1-860's micro-SD port). Good luck! :)
[Acer Iconia One 8] jhofseth:
A1-860 and UEFI

I backed up /dev/block/mmcblk0p4 (ESP) and mounted the backup image in Linux. Contents:

EFI (main folder)

/

BOOT (1st folder in EFI)

/

bootx64.efi (277 KiB)

Intel (2nd folder in EFI)

\

efilinux.efi (277 KiB)

warmdump.efi (70.5 KiB)

Data (folder; empty)

I don't know how to access the bios settings--if that is possible with the A1-860. Some Acer models use a button combo, but none that I've found so far work for the A1-860. The only button combo that I've found leads to recovery menu, which doesn't lead to any settings option (but cool it has a fastboot option). Is there some other way to disable UEFI secure boot besides somehow accessing bios settings? Is it possible to add a grub x86 for android efi image by renaming old files differently and using their names for grub? I don't have much experience with EFI, I guess. :)
[Acer Iconia One 8] social-design-concepts:
give me a few days to finishing working on my cm-12.1 port and i'll work with you on testing an insecure bootloader
[Acer Iconia One 8] jhofseth:
A1-860 bios settings and security policy

OK thanks, sounds great!

A1-860 bios settings are accessible if you modify /dev/block/mmcblk0p4 (ESP) by renaming bootx64.efi to something else. At that point, it can't boot EFI and a dialog box pops up. USB On-The-Go (OTG) with a keyboard allows you to dismiss the dialog and navigate the complex bios; the dialog can be dismissed with USB OTG and a mouse but the mouse is useless in the bios settings. One of the options is to boot from an efi file and this works to successfully boot the renamed bootx64.efi file (e.g., I could file select oldbootx64.efi and it boots like normal).

I also successfully booted grub x86 for Android efi images I added to /dev/block/mmcblk0p4 (ESP) (i.e., in /EFI/BOOT), but I couldn't get the efi grub to then boot backup copies of the kernel and initrd images I stored on the system partition /dev/block/mmcblk0p12 (system) (i.e., it froze after issuing the final boot command).

Two main issues: (1) security policy will not allow boot of any efi image named bootx64.efi if it is not the original file (i.e., renaming doesn't work; other names are OK for manual booting of efi files).

(2) deleting all secureboot keys doesn't change security policy; secureboot shows disabled when you first access the bios. A1-860 security policy must be defined/configured somewhere besides the bios.

So, it looks like booting insecure efi images is totally feasible, but it's also necessary to use USB OTG keyboard on every reboot. :)