yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] QA Bot:
Q&A for [GUIDE] Root Acer Iconia Tab 8 - A1-840FHD

Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.

Before posting, please use the forum search and read through the discussion thread for [GUIDE] Root Acer Iconia Tab 8 - A1-840FHD. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.

Thanks for understanding and for helping to keep XDA neat and tidy! :)
[Android Q&A, Help & Troubleshooting] tonnhy:
Thanks. Successfully rooted with Windows 8.1 64 Bits
[Android Q&A, Help & Troubleshooting] Kumaraji:
Problem trying to root Acer Iconia Tab 8 - A1-840

Hi,

I have tried to root my Acer Iconia Tab 8 - A1-840-131U following this guide. Unfortunately, when CWM boots on my tablet, I am not able to select the package to install.

Here is the error messages :

E:installer device ignored

FASTBOOT INIT ...

E:Failed to mount device '/dev/block/sda1' as installer partition using fs_type 'vfat'

E:installer device ignored

E:installer device ignored

E:No valid installer medium found.

FASTBOOT CMD WAITING...

Could not open /sys/devices/virtual/blacklight

Does anyone know how I can overcome that problem ?

Thanks in advance !
[Android Q&A, Help & Troubleshooting] Kumaraji:
Problem trying to root Acer Iconia Tab 8 - A1-840

Hi,

Now, I finally reached the same stage than M.Ray : http://xdaforums.com/showpost.php?p=56580827&postcount=2158

Hope someone will find a solution ...
[Android Q&A, Help & Troubleshooting] glidingbear:
unable to run "run-me.bat"...

good evening ,

I'm sorry but I followed the tutorial but I get a message to the launch of run-me :

The specified path was not found. '' '' '' ' ' '' Is not recognized as an internal or external command, operable program or batch file.

And of course it does not work ...

what should I do?
[Android Q&A, Help & Troubleshooting] glidingbear:
Not yet...

Well, I made a stupidity to install and it could not walk ...

Now I have another problem when I run run-me.bat (choice 2 / choice A2 / choice 1 / ACCEPT)

scripts will reboot my tab into Bootloader mode and start the exploit, but

I can now Vol+ / Vol- to navigate, and Power to validate

but I have not "install zip", instead some messages:

E:installer device ignored

FASTBOOT INIT...

E:Failed to mount device '/dev/block/sda1' as installr partition using fs-type 'vfat'

ition using fs_type 'vfat'

FASTBOOT CMD WAITING...

E:installer device ignored

E:installer device ignored

E:No valid installer medium found.

Could not open /sys/devices/virtual/backlight

I can only reboot but unable install Super SU :(
[Android Q&A, Help & Troubleshooting] glidingbear:
me too...

Unfortunately , I also finally arrived at the same result (with or without SDCard inserted).

There may be different sets of tablets with very slightly different characteristics ?
[Android Q&A, Help & Troubleshooting] rentaguru:
Excellent that worked.

It might be worth mentioning that actually rebooting into cwm recovery takes a while and it throws up various error messages in the process that can be safely ignored. These caused me to abort the reboot the first time. Giving it time solves all the problems others have posted above!

David
[Android Q&A, Help & Troubleshooting] retroben:
I have the A1409 edition according to the RMN on the box.

It also sucks that I only have 1GB of RAM in mine. :(

Do I still have root capability?
[Android Q&A, Help & Troubleshooting] Kumaraji:
Hi David,

I need some precisions.

First, is your tablet the Iconia A1-840-131U (ducati2hd) ?

And if so, would you mind to give us more details about the manner you rooted that tablet ?

Thank you in advance.
[Android Q&A, Help & Troubleshooting] retroben:
Can I root this Acer Iconia A1-840FHD?

Android Version: 4.4.4

UEFI: 1.0.5

Kernel version: 3.10.20+

Image version: Acer_AV0K1_A1-840_RV0ERC02_WW_GEN1

Build number: Acer_AV0K1_A1-840_1.061.00_WW_GEN1

Image P/N: FM.NPSA0.013

So,does anybody know if it will root?

Edit:Anyone else have a backlight bright flash issue?

Mine is randomly having a brief light glitch for some irritating reason.
[Android Q&A, Help & Troubleshooting] rentaguru:
Yes follow this http://xdaforums.com/android/development/guide-root-acer-iconia-tab-8-a1-840fhd-t2933317

Note that when the recovery is booting it takes some time and throws error messages just wait and it gets there then you can install the superuser.

Re backlight the intel chipset does some automatic adjustments to the backlight to save power.

---------- Post added at 11:46 AM ---------- Previous post was at 11:38 AM ----------

re kumaraji.

No mine's a a1-840-19s6 ducati2fhd

I simply followed the method given. I did abort cwm the first time as it was throwing error messages. After checking the method again i restarted and let it continue despite the errors and it eventually got to the cwm screen from which i installed the zip i'd copied to the internal memory as instructed.

---------- Post added at 12:05 PM ---------- Previous post was at 11:46 AM ----------

The 1gb means yours is an a1-840hd rather than a a1-840fhd - the hd is 1gb ram and 1280x800 display the fhd is 2gb ram and 1920x1200 display. From posts I've seen it seems this route method doesn't work with the hd only with the fhd
[Android Q&A, Help & Troubleshooting] retroben:
My product and safety information booklet says FHD on the front,maybe it is FHD with a 1gb chip slapped into it instead.

Or they are scamming me with a delusional booklet,or they are too lazy to print it to match the contained device.

Also,what about Root Master?

Can't find a fully english copy.

Has anyone tried Kingo,Vroot,or any other method?
[Android Q&A, Help & Troubleshooting] retroben:
I think we need to request the Kingo team to find a root exploit for it if one has not already been found.

Kingo is still active since the 20th of November's update.
[Android Q&A, Help & Troubleshooting] Gburd87:
A1-840 Root

Just wondering if this also works for the non HD version of the A1-840?? I don't want to try it unless i know it works with the non HD version. thanks!!!
[Android Q&A, Help & Troubleshooting] Gburd87:
A1-840 Root

Will this work with the A1-840? the non HD version??? i don't want to try this and have it brick my device.
[Android Q&A, Help & Troubleshooting] jccalhoun:
I bought a sample model off someone and it looks like I got the hd model not the fhd so hopefully a root can be found for this model too.
[Android Q&A, Help & Troubleshooting] Kirk0215:
Device：acer A1-830　4.4.2

Why my tab can not exploit in Bootloader mode ?

It showed "FASTBOOT CMD WAITING..." and stopped.

What step I did mistake.
[Android Q&A, Help & Troubleshooting] jccalhoun:
It looks like there might be an updated file that might work with the hd model here: http://xdaforums.com/showthread.php?p=57227753#post57227753

I haven't had time to try it yet, though.
[Android Q&A, Help & Troubleshooting] Treymon:
Windows To Go on Acer Iconia A1-840 FHD?

Hello,

I'm new in this forum, so I'm sorry if my topic doesn't match here.

Is it possible to run Windows To Go from an USB-Stick after rooting my Acer Iconia A1-840 FHD and enabling the Bootloader?

Cause I don't really like Android and want to run Windows 8.1 on the tablet.

Thx for an answer

Treymon
[8525, TyTN, MDA Vario II, JasJam General] japo:
i install vitoaudionotes on my phone (without memory card)

with selected "auto calls recording". next day after restart, started windows mobile and i get window with "SIM code inserting" but on front this is another popup " STORAGE MEMORY IS CRITICALLY.......delete files...." with OK on right corner.

but i cannot make anything, all is freeze..

:( :(

many thaks for helping...

sorry for my english....
[8525, TyTN, MDA Vario II, JasJam General] Koksie:
Have you tried a soft reset? Or perhaps trying to connect to your desktop pc to see if you can delete the files through AS? Otherwise I fear a hard reset is the only solution...
[8525, TyTN, MDA Vario II, JasJam General] japo:
AS is not working :mad:
[Android Q&A, Help & Troubleshooting] Helby:
Hello folks!

Today it's been three days since I updated my Nexus 5 to Lollipop. It's supercool except keyboard. I don't know whether this is a BUG or a FEATURE :laugh:

This issue was confirmed by 2 more users using Android 5.0 and New Google keyboard. But users who are using new Google keyboard on KK (4.4.4) haven't experiencing such problem.

So here's my letter to Google describing the issue and a video I recorded to show what I'm actually talking about.

Are you guys experiencing this problem using English layout or it is only non-English layouts issue?

Regards,

Denis.
[Android Apps and Games] dianasi:
We create a new touching game – “Touch The Penguin”. If you feel that winter is soon we promise our polar game will amaze you. The only thing you should do in the game – tap as many penguins as you can.

Main Features:

-	Multi touch

-	4 mini-games inside

-	Frozen atmosphere

Google Play: Touch The Penguin in Google Play
[Nexus 4 Q&A, Help & Troubleshooting] :
Q&A for [KERNEL] Semaphore N4 2.4.0

Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.

Before posting, please use the forum search and read through the discussion thread for [KERNEL] Semaphore N4 2.4.0. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.

Thanks for understanding and for helping to keep XDA neat and tidy! :)
[Nexus 4 Q&A, Help & Troubleshooting] indrora:
Was a huge fan of Semaphore on the Captivate, got an N4 was totally pumped about getting Semaphore again.

Flashed over CM11-M12, 4.4.4 w/ 2.4.0 (latest as of today) -- And I get this:

http ://i.imgur.com/n1xAYFll.jpg

It looks like someone said that the screen was ABGR instead of ARGB.

Further, I don't know if this is just my N4 being weird but during boot the boot animation is scanlined and bad.

edit: Happens with 2.3.3 too.
[Nexus 4 Q&A, Help & Troubleshooting] vampire36:
semaphore doesn't work with cm...only aosp

use this semaphore modified to work with CM....

http://mirror.lnx.im/android/mako/jolie/mods/Jolie_Belle_Kernel_Mako_2.4.0-CM-F2FS-auto.zip
[Nexus 4 Q&A, Help & Troubleshooting] dr.creolo:
Hi Stratosk

Flashed Lollipop Factory Image & Latest Twrp then Semaphore 3.0b !

System worked like a Charme many thx to your great Work !

Also get Root with Chainfires latest Beta after flashing Semaphore Kernel no Problems with Nexus 4
[Nexus 4 Q&A, Help & Troubleshooting] it_amit:
need wipe?

Is there any loss of data on lollipop?
[Nexus 4 Q&A, Help & Troubleshooting] HangoverDanny:
Back To Stock/Soft-bricked Bootloop not working

Wrong thread sorry
[Nexus 4 Q&A, Help & Troubleshooting] saketh kanna:
display colours changed

i flashed the kernel on my nexus 4 running liquidsmooth rom latest build.. i flashed the kernel via twrp recovery..after rebooting my display colors have been changed like this..
[Nexus 4 Q&A, Help & Troubleshooting] Cem0:
Color profiles don't appear on screen shots.
[Nexus 4 Q&A, Help & Troubleshooting] Mohit31:
Hi guys,

M new to this kernel...

Just wanted a feedback from you guys...

How much sot you get?

And does it support otg?

Your guidance is appreciated

Thanks
[Nexus 4 Q&A, Help & Troubleshooting] Azims Lives:
Plz.. Let me know

Hi thanks for developing this awesome kernel. It's simplicity makes me want to stick with this kernel a bit longer.

I'm new into undervolting, and lack of knowledge of it. Please tell me that this values are good enough for me?

See attachments :)
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] :
Q&A for 4.4.4_Tw_International Rom Patch

Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.

Before posting, please use the forum search and read through the discussion thread for 4.4.4_Tw_International Rom Patch. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.

Thanks for understanding and for helping to keep XDA neat and tidy! :)
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] Coheed196:
Newbie question

So I am currently on Alliance Rom build 2 for the NE9 firmware. I want to use the patch to try out MOAR Rom. Quick question though, do I have to download the actual sprint firmware or just download the Rom and the patch then install via safestrap?
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] fantasy2c:
[MENTION=5438911]evilryry[/MENTION] tried a fresh download and same updater binary error on rom install. Idk what's wrong..only other idea I have is I'm running an older twrp recovery is the only idea I have from two months ago or so..was thinking of upgrading but figured why fix what's not broken lol
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] spartaco1395:
Gps

Hello my friend, great job, But, GPS dont work?
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] davidhacks:
kernal

What do we do for the kernal when we find a rom we want thats the only thing that I'm worried about?
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] fantasy2c:
I run ktoonez kernels work great
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] davidhacks:
not what I mean

If we are stuck on Verizon s5 locked bootloader we would need a stock to kernal to run a sprint rom
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] fantasy2c:
You also wouldnt be able to run any roms with an aroma installer
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] davidhacks:
kernal

Whould any stock kernal work I want the clinch rom but it multi csc so how would that work

---------- Post added at 12:30 AM ---------- Previous post was at 12:18 AM ----------

Can you help me http://xdaforums.com/galaxy-s5/development/rom-beautiful-fast-stable-t2863290 it says it supports t-mobile which is one of the files for us
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] quantumqweef:
what tmobile rom are you running? and yer on the retail G900V right?
[Verizon Galaxy S 5 Q&A, Help & Troubleshooting] quixtech:
I would like to install the S6 echo port on my locked S5 with bootloader BOD5. Would this patch work with it. Thanks
[T-Mobile, Samsung Galaxy SIII] ShernDog:
Are the two runtimes compatible in a Mult-ROM/Boot setting? Could I have a ROM running on Dalvik as my main driver and then have a secondary ROM on ART?

Specifically the MultiBoot recovery that is in Android Development. I also wonder if that would not work, would changing the main ROM to ART allow the secondary ROMs to run ART as well? Thank you.
[Nexus 5 Q&A, Help & Troubleshooting] cyberpontiff:
Hello! I flashed the stock image two days ago, as I was not part of the initial wave. Everything seems to be working great, but with one exception. When connected to wifi, anything that must pull information from the web has major lag. For example, opening facebook (or facebook messenger), or instagram, or twitter. You get the idea. Opening facebook messenger, for instance, takes around 9 seconds to load a conversation.

I did a ping test through my phone, using google.com, and found that it took around 9100 ms.

If I disconnect from wifi, which switches me to LTE, this issue disappears.

Switching from wireless 2.4 ghz to 5 ghz makes no difference.

While I have found bug reports about problems connecting to wifi, I haven't really found anyone with this specific issue. If anyone has any thoughts, I would greatly appreciate them.
[Nexus 5 Q&A, Help & Troubleshooting] cyberpontiff:
Update:

Speed test shows that my wifi connection is running at normal pace. Ping test showed a delay, so I am assuming that is where the problem is. This problem does not occur on any other of my devices using my wlan.
[Nexus 5 Q&A, Help & Troubleshooting] VisionNN:
I'm experiencing the same thing, unsure of what's going on. Facebook is so sluggish and everything else I do on the Internet seems to be so slow...
[Nexus 5 Q&A, Help & Troubleshooting] as00paf:
Same for me

I am also having issues with WIFI on Lollipop. I always seem to be connected to the network but when I open apps that use the internet connection, it takes forever to load. Facebook, Instagram, Twitter and other mainstream apps are having a real hard time loading images
[Nexus 5 Q&A, Help & Troubleshooting] jameson21:
I am having the same problem.

Weird thing is that I was at a different location today and used the wifi there without any problems. Didn't have time to figure out what was different with their network configuration.
[Nexus 5 Q&A, Help & Troubleshooting] Karbon82:
Same problem here.. both on my phone and my wife's. If anyone here hears of a solution... please post back.
[Nexus 5 Q&A, Help & Troubleshooting] Karbon82:
Fixed

Actually... I fixed this.. I have a D-Link-655 Router.. I had a firmware from 2012 on it.. I updated to the latest from 2013 and I no longer have problems with wifi-lag on mine or my wife's phones with Lollipop. Something to consider before fussing with IPv6 settings.
[HTC One X] kassaaam:
Can somebody please explain to me HTC ditched the One X from any further updates from jelly bean and blaming Nvidia's Tegra 3 for it while a tablet, their very own, Nexus 7 which also has a Tegra 3 (lower clocked 1.2ghz) and 1gb quite the same amount of ram got updated to Kitkat and is also getting an update to Lollipop, please explain this sorcery.
[HTC One X] HTC Venom:
That's simple. The tegra chip inside HOX is different. Beside Google mostly has managed to force nvidia to get further with development. I think at this moment HTC has learned from that and since they haven't implemented nvidia's anymore
[HTC One X] kassaaam:
How much different? If they can force it to run lollipop, they should implement it for HOX as well. After all, Cyanogenmod will be updated to lollipop for HOX, which will work like a fluid as always so why can't htc do the same? It's not like sense is really really heavy, it's only a skin and I'm sure they could have worked it out since the sense 6 blinkfeed launcher works well already on HOX
[HTC One X] hefestto:
I want lollipop in my HTC one x
[One (M8) Q&A, Help & Troubleshooting] emixamsonaz:
Hello,

I've a little problem with my Htc One m8, when i'm calling with Viber there's no sounds from him nor me. I thought that it could be a compatibility's issues but it's running the last version of Android released on the m8 (4.4.4) and Viber.

When i use an other device, it works fine.

Someone has already had this problem ?

Thank you
[One (M8) Q&A, Help & Troubleshooting] snebojsa:
I'm on Android 4.4.4 and Viber working fine for me.
[One (M8) Q&A, Help & Troubleshooting] Viber Team:
Hi,

Please get in touch with our support team here: http://bit.ly/1aOwGy2 so that we can look into this more in-depth.
[One (M8) Q&A, Help & Troubleshooting] Chaemg:
Dear fri,

Had you solved this problem?Now, I also have the same problem with you in htc one m8.When i called to someone, there is no sounds from him nor me.but can hear if speaker open. I don't know how to do and what to do. If you konwed,please share me , thanks

I can solve it, uninstall the current viber and download viber for htc one m8 form google and choose the compatability checking and installing option.
[One (M8) Q&A, Help & Troubleshooting] emixamsonaz:
I gave the HTC One M8 to my father but he told me that after an viber's update all was working fine.

Sorry :/

Happy new year !
[8125, K-JAM, P4300, MDA Vario Software Upgrading] mtvn:
Don't forget to read the "Announcement" ROM images will no longer be hosted.

Since a lot of people don't pay attention to the announcement here is a reminder....

For those of you, who are still hoping that a cooked WM6 will be available to download from this site you can stop hoping now :) Your "favorite" Cooks won't be able to post any ROM, hosted by this site, doens't matter if it's WM5 or WM6.

http://xdaforums.com/announcement.php?f=293
[8125, K-JAM, P4300, MDA Vario Software Upgrading] butus73:
Is it really funny 4 u?
[8125, K-JAM, P4300, MDA Vario Software Upgrading] mouragio:
But if someone else hosts it?

There are a lot of people out there with webspace (me incluis).... so....

or is this too simple of a thought?
[8125, K-JAM, P4300, MDA Vario Software Upgrading] mtvn:
Yes, I am. Because some peeps and probably you too, have already announced that they will not use any ROM from any site. They will only use the ROM from the "Master Cook" here.

Do you want to RLOL?

http://xdaforums.com/showpost.php?p=1135447&postcount=13

You can stop hoping and praying now because you won't get any WM6 update for the Wizard or any older model from HTC. Most people already know that, but you probably still hoping :) I have no problem of using ROM from any Cook from any site. What would you do now? Keep on using the old ROM or "eat" your words and start to use the ROM from the so called "Non-Master Cook"? :D
[8125, K-JAM, P4300, MDA Vario Software Upgrading] rjgraves:
There's the whole reason M$ has made the request....so OEM's can sell new devices instead of providing upgrades to existing devices. It's all in how much profit can they make from those of us that like the latest and greatest.
[8125, K-JAM, P4300, MDA Vario Software Upgrading] Ayle:
It's not only about the new Roms... This meant that everyroms will be taken down.... Man that sucks.....
[8125, K-JAM, P4300, MDA Vario Software Upgrading] demontefixo:
M$'s position is truely sad. Guess it is time to look for a phone that will run a version of Linux... :(

--M
[8125, K-JAM, P4300, MDA Vario Software Upgrading] cg87:
By requesting to remove all roms from this site, M$ is basically killing this forum. People come here to test new updated roms on their phones. Now this really sucks. Now, is it possible to host roms elsewhere?
[8125, K-JAM, P4300, MDA Vario Software Upgrading] texasaggie1:
I'm Pissed

I guess I'll switch to a freakin symbian phone or ahh yes an IPHONE. This kind of crap really reminds me why I can't stand Microsoft! They are not just happy with getting our money.
[8125, K-JAM, P4300, MDA Vario Software Upgrading] mikaarce:
we knew from the very start about MS totalitarian rule, of course we can work something out, like "we worked"(esp. the great ROM cookers) to make better, faster, and more stable ROMs than MS has ever made, maybe someone is already working out a plan, working around the "system", so that the whole forum will still be alive
[8125, K-JAM, P4300, MDA Vario Software Upgrading] mouragio:
I think the cooks must deside for themselves... if they want to place the roms elsewhere; there is no real issue... if they don't, I think it is going to be a less interesting board, the xda-developers, unfortunatelly.

But I think mickey$oft will hunt down every place where the roms reside, so....
[8125, K-JAM, P4300, MDA Vario Software Upgrading] Rapsody:
I've never really liked Microsoft..*the only reason I don't run Linux is because my wife doesn't know much about it and we only have 1 computer now*..but it was bound to happen sooner or later. With things like people bricking the phones and the whole monopoly that Microsoft has. The only thing I hate is that Faria had upgrades planned for the 3.3. :(

But texasaggie, I couldn't bring myself to get an iphone. It cost too much for too little. I've just waiting around until a ppc starts to run Linux.
[8125, K-JAM, P4300, MDA Vario Software Upgrading] cg87:
I guess torrents is the way to go. Since new roms comes very quickly and people would be more interested in the newest ones, torrents should able to stay alive until the next rom release.