yashsingh1/xdaforums huggingface dataset:
[Android Software/Hacking General [Developers Only]] Teleferic:
Yes, TWRP will always work perfectly. What's happening is that the tablet's battery is wearing away and cannot sustain power to the system anymore (the tegra cpus and screen use a lot of power). Unfortunately as far as I know, there is no replacement battery. This is what happened to me after a long while. I've since removed the battery and wired it to direct power and now I use this tablet like a little kiosk of sorts with months of uptime...

Sadly, I pretty much have no more motivation to develop this tablet.

Here's a link to the internal tear-down of the Kobo Arc 10HD if you'd like to see the battery;

https://imgur.com/a/8uMbD

It can handle 1080p just fine, but more than likely the cpu governer is still too strict (it was intended as a reading tablet after all). I replaced the original cpu governer, but I guess the initial settings are still too conservative. Download something like kernel aduitor and try these settings for the cpu hotplug (note: i'm using an old version of kernel aduitor, so things might look different).
[Android Software/Hacking General [Developers Only]] GenghisKhan67:
I received an email this morning from Rakuten announcing an update to the Arc10 (return of the dead?). As others did in this thread, I moved on to CM12 a couple of years ago, but thought it would be interesting to let others know

Not sure what Android version is provided, and I couldn't find a link to a downloadable file to check it out.
[Android Software/Hacking General [Developers Only]] Lorenzo1000:
Hi. I also got an email from Kobo regarding an update for the Arc 10HD. Wondering if there is any way to return this to the factory image from CM?
[Android Software/Hacking General [Developers Only]] jasius:
Do you think a stricter CPU govenor would help my issue of the thing using too much juice to power the tegra properly?

On a side note Kobo is a bunch of hacks, my old Kobo Glo HD developed the issue where it couldn't show book covers without being plugged in because of similar battery issues.
[Android Software/Hacking General [Developers Only]] jaylimo84:
I also got the email.

Does anybody know what is this update about?

What on earth is so important that they dug up the ressources to publish this update????
[Android Software/Hacking General [Developers Only]] theflyingsquirrel:
Battery for Kobo Arc 10 HD

I also have the screen flickering problem. I noticed when the battery is 100% to 60%, it is fine. Once it get down to 60% or below, the screen flickering problem appear. But when I let it warm up for a bit longer, it works fine. I am thinking it is either the voltage of the battery is getting too low, or more likely, the current that the battery can supply isn't enough.

There are 10 wires coming from the battery. It seems it is a pack formed by connecting 2 cells together with a bms.

I don't know why 10 wires are needed. How did you connect power directly to the tablet?

Which 2 of the 10 wires you connect the power source to? Or you just use the USB charging to power it up?

I think if the wiring of the battery can be figured out, it is possible to connect 2 similar size battery pack together with the original bms and put it back into one piece.
[Android Software/Hacking General [Developers Only]] Teleferic:
Sorry for the late reply. Maybe so or maybe not. I've never played around to see if there might be a software fix. But software fixes almost always suck. The only thing I know is that from experience the custom TWRP/recovery on my Kobo uses drastically less power, so maybe if you can lower the power usage significantly somehow on the system, it might work.

Yeah, it has some sort of weird management system, and I couldn't be bothered to figure out how it might of worked. The only thing I know is that one of the pins is a temperature sensor and it is crucial that it works and gives the correct temperature (resistance reading) or the unit will not start.

If you look at the picture that was posted, there is a hidden integrated circuit in the middle of the battery. Peel back the plastic and just above the markings where you see (-) and (+) there should be two larger solder pads that you can directly solder wires to.

I left the 10 pin connector plugged in and removed the batteries entirely from their metal connectors to the IC. It is crucial you do not remove the (ntc?) thermistor closer to the bottom of the battery IC. It's the black wire that looks like it connects to a bead.

I threw away mine by mistake and had to figure out what resistance it was suppose to read, once I realized what it did...

I remember trying usb power but I cannot remember exactly why that does not work.
[Android Software/Hacking General [Developers Only]] theflyingsquirrel:
What pictures? You mean the teardown guide pictures?

I dont see any picture with battery opened in there.

I suspect some of the 10 wires are interconnected to increase the current flow.

If you have a chance, would you mind taking picture of your set up?

I would love to see what you are talking about and perhaps I can source some battery pack and put up some useful information here to extend the life of the tablet beyond 2019!
[Android Software/Hacking General [Developers Only]] Teleferic:
Yeah, I meant the tear down link. In the middle between the two battery packs is the ic. You'll have to remove the plastic to see it. On the black plastic there are (-) and (+) markings. The solder pads I'm referring to are somewhere directly underneath the plastic. The batteries if I remember correctly, connect to pads underneath the ic. You'll see it once you strip away the plastic in the middle section of the battery pack.

https://imgur.com/a/8uMbD

Sorry, i'm unable to take a photo of the setup.
[Android Software/Hacking General [Developers Only]] theflyingsquirrel:
Ok. I guess I will need to take out the battery and cut open the wrap to see.

It is just that I am still using the tablet in the meanwhile for netflix.
[Android Software/Hacking General [Developers Only]] AtomicHaggis:
As of April 2019, this link is no longer working and I just got my hands on an Arc 7 HD. Do you have an updated link?

EDIT: Found a link to a working APK, which I've tested on my Arc 7 HD. You can find it here: Towel_Root_V1.apk.
[Android Software/Hacking General [Developers Only]] blindhai:
Would it be wise to go back to the original android version and get the latest update or use the custom firmware? I have to reinstall my android because my custom android got really slow and even watching netflix is sometimes stuttering. I think something is wrong there, i have checked everythink else and i remember how fast the android was, when i first installed it. Using the tablet for Netflix and browsing only (browsing only sometimes, watching netflix is like 99% of the time).
[Android Software/Hacking General [Developers Only]] jasius:
You're very lucky, mine doesn't do anything anymore, it boots up and just has some kind of awful GPU crash and thats about it.
[Android Software/Hacking General [Developers Only]] blindhai:
I had that problem too but after a new image it worked again.

But mine is slowly dying especially the battery is only lasting for 3 hours and i need the powercable the whole time. Next one will be the Huawei M5, which is the same size but much lighter and pretty nice. But first i wait for the Arcs death. :)
[Android Software/Hacking General [Developers Only]] jasius:
What New Image did you find!? I'm confused by your post.
[Android Software/Hacking General [Developers Only]] blindhai:
I meant, that i just reflashed the image that is here available in the thread, because the graphics problem just occured while android is running, not before (while booting).
[Android Software/Hacking General [Developers Only]] Goldenmeadow:
Could you please tell me which image EXACTLY did you use?

I just happened to find "lost" in the closet Kobo :) I remember it had some weird triangular glitch... So I'm wondering which is "working" image.

Thanks in advance!
[Android Software/Hacking General [Developers Only]] Falcon1234:
Arc 7HD

My Arc7HD boots up but gets stuck on set up screen. In the background you can see the deice is connected to wifi but I get an error saying there is something wrong with your wifi and it won't let me go any further.

I can boot into ADB and can even access the Arc's Hard Drive on my PC.

Any Ideas?

Thanks
[Android Software/Hacking General [Developers Only]] el_pablo:
I have done a factory reset and I have the same problem as yours. Stuck on the Wifi screen. Did you manage to find a solution?

---------- Post added at 08:57 PM ---------- Previous post was at 08:03 PM ----------

UPDATE

Ok I'm might be getting somewhere. At first, I'm stuck in the Wi Fi setup at boot, but I manage to get to the Chrome browser and Play Store. Now I'm fiddling around for the next step opening the settings menu from the browser.

Steps to get to the market.

When The keyboard pops for the password.

Press on the keyboard settings button. Which in my case is the key at the bottom left.

Select Google Keyboard Settings

Select "Personnal dictionnary"

The Settings app will open.

Now you should be able to connect to the Wifi.

Go to "About Kobo Arc 10HD"

Tap 7 times on "Kernel version". This will activate the "Developer options"

In "Developer options", activate USB debugging.

Also it might be a good option to activate "Unknown source" apps.

That is where I am now. I think there might be somewhere I can uninstall the Kobo boot settings.
[Android Software/Hacking General [Developers Only]] recession2008:
With the help of el_pablo method, I succesfully unlocked my arc10hd! Here was the method I used:

1: Enable usb debugging

Boot the arc 10 hd

When The keyboard pops for the password.

Press on the keyboard settings button. Which in my case is the key at the bottom left.

Select Google Keyboard Settings

Select "Personnal dictionnary"

The Settings app will open.

Now you should be able to connect to the Wifi.

Go to "About Kobo Arc 10HD"

Tap 7 times on "Kernel version" (or Build Number). This will activate the "Developer options"

In "Developer options", activate USB debugging.

In the security tab, activate "Unknown source" apps.

2: Enable root

To enable root, I used the cydia impactor method of this thread. However, the newest application does not work, so I had to use an old version.

Here is the file I used: (As a new user, I cannot post a link, so remove the space in the following link)

cache.saurik.com/impactor/win/ Impactor_0.9.14.zip

3: Remove blootware

Open an adb shell

In the adb shell type su to go in root

Use this command to make the system directory writable

mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system

go to system/app directory and then remove the apk you no longer want. I removed some Kobo apk.

cd system

cd app

rm KoboSetupWizard.apk

rm KoboJIT.apk

rm KoboReader.apk

rm KoboStubs.apk

I also went to data\data to remove the com.kobo.setupwizard directory, but I don't think it is necessary:

rm -r com.kobo.setupwizard
[Android Software/Hacking General [Developers Only]] handyflo:
The same method does also work for arc7hd?
[Android Software/Hacking General [Developers Only]] xtokkox:
Not bad, thank u
[Android Software/Hacking General [Developers Only]] recession2008:
I don't have an arc7hd, but I think it should.
[Android Software/Hacking General [Developers Only]] shizzleman:
he guy, using a mac and in the SDK TOOLS I can't find the google usb driver. so i'm stuck there, trying to follow the intructions to get my kobo arc 10hd back and running. it's been stuck since factory reset. anyone could give the steps to remove blootware? I have the impactor, android studio and dev mode enable. just need to find how to make this work.

if not obvious, i'm a newbie so this needs to be steps by steps!!

thanks guys
[Android Software/Hacking General [Developers Only]] FlashFlood:
Hey how do you open an ADB shell to the device ? i was able to add my kobo 10 to the wifi network and it has an IP but it isn't responsive on the default port of 5555. Can you please provide some details of how you did that?

Edit: I figured it out, thanks
[Android Software/Hacking General [Developers Only]] sector007:
Can someone provide a working download link for TowelRoot v1? I've found several posts that have non-working links. If someone can upload it, I would greatly appreciate it. Thanks.
[Android Software/Hacking General [Developers Only]] el_pablo:
You might want to take a look on mobileread[dot]com. There’s a thread about this tablet where there’s a link to the file.
[Android Software/Hacking General [Developers Only]] jfp555:
Hi all!

My Kobo Arc10HD is still in great shape, however, even the YouTube app has stopped working due to being too old to be compatible.

I wanted to know what are the ways I can get things like Youtube operational as I want to donate this to an older relative and they might get more joy out of it as a media consumption device.

Should I put a custom ROM on it? (I have it already rooted, but on stock firmware)

Is there a way to install another OS on it such as ChromeOS?

Or is there a way I can utilize this is an external monitor? I'm just throwing out ideas here, but would there be a way to find a driver for the display and maybe hook it up to take video signals?

Much thanks in advance. If there is a another place that might be suited for this conversation, please do point me to it.
[Android Software/Hacking General [Developers Only]] dhomas:
I haven't used my Kobo in about a year, since my kids accidentally threw it down the stairs and the screen got cracked.

That said, on my other Android devices, I haven't used the stock YouTube app in what seems like forever. I use the YouTube Vanced (vancedapp.com) on all my devices. You could try that on the Kobo to see if it works better than the official YouTube app.
[Android Software/Hacking General [Developers Only]] Didact:
This comes way late, but I hacked the .prop file to show that it is at a higher Android release, and was able to download the update. But by now, you likely will have gotten a new tablet.
[Android Software/Hacking General [Developers Only]] titslover69:
hi guys.

i have tried to root my kobo arc 7 hd. it seems that the process worked but now when i start de kobo i cant connect with any wlan. kobo logo boots, i check the language, next i have to choose an wlan connection but cant connect.

any ideas? thx
[Android Software/Hacking General [Developers Only]] MrWhyte642:
Go to Kobo support and ask for their help. You will be amazed at their response - I was.
[Android Software/Hacking General [Developers Only]] Justchillz:
Just bought one for 150€.

Thanks for the routing guide, will try ASAP.

Really hope there will be an update, official or not..
[Android Software/Hacking General [Developers Only]] Justchillz:
I'm unable to install the google USB drivers. Can somebody upload them or help me?

I've first installed the KOBO update without root.

the impactor program says no such device...

edit : Okay, I think it worked. the impactor program installed an app to my device.
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Rooting new Arc 10HD?

Most current Arc 10HD rooting process?

Hello all,

I have just placed an order for an Arc10HD tablet.

The first thing I want to to when I get it - is to root it.

I read the various comments on this thread - and I am now not sure what works or what does not work (with probably the most recent software update already on the unit).

Please share your experiences.

Thank you!
[Android Software/Hacking General [Developers Only]] Ltdrev:
This stock ROM is for what model specificaly, does somebody could help me with that?

I can't find the factory image for the Arc7HD anybody interested in sharing it?

[MENTION=4043674]Gadgetguy2005[/MENTION] - I can't say for the 10HD but the 7HD sucks; Not much dev interest, aldo not "snail like" sluggish It's pretty rubbish in stock form, Stock rom is overbloated with Kobo stuff. Personal but Kobo's launcher is quite bad and there's some tech support but they are highly unqualified and unwilling to help you past issues like how to set up a mail widget... I've ask them for factory image last year, still no credible reply, all I got was robotmails and ignorant customer service reps asking the same questions over and over NO follow up of any kind was ever done!
[Android Software/Hacking General [Developers Only]] gg777:
I tried everything to get root for Arc 10HD. Finally I had success with towelroot v1.0. searsh for it on google.

Good luck.
[Android Software/Hacking General [Developers Only]] dhomas:
Welcome fellow Peel District School Board employee! ;) I, too, am waiting for my new tablet to arrive.

What he said. Towelroot works on pretty much all devices running Android versions up to and including KitKat. The only device that I could not root with towelroot is my OnePlus One, since the version of Cyanogenmod it is running had already patched the vulnerability used by this method. Best of all, you can root directly from the device, no PC connection necessary!

Good luck!
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Thank you both - very helpful!
[Android Software/Hacking General [Developers Only]] dhomas:
Were you able to root your Arc 10 HD using towel root? I got mine yesterday, and I haven't been able to root yet. I haven't tried all the modstrings yet, though.
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Not yet - as I have not received it yet. Should have it Tuesday next week, then I will try...
[Android Software/Hacking General [Developers Only]] dhomas:
Sounds good. If I figure out how to root it with towel root, I will post the method here.
[Android Software/Hacking General [Developers Only]] cobyman7035:
i missed out on the kobo 99$ price error ! did anyone get it? also read they shipped out 2 for 1 as well! 50 bucks not bad price!
[Android Software/Hacking General [Developers Only]] dhomas:
I received mine. 99$ was too good a deal to pass up! I don't know how some folks got 2 for 1, though.

To root easily, I used towelroot v1. For some reason, v3 would not work right away and I couldn't be bothered to try every combination of modstrings.

Here is a link to the correct apk for 1 click root:

http://xdaforums.com/galaxy-grand-2...welroot-v3-t2802021/post54043232#post54043232
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Thank you for sharing - I am impatiently watching the Fedex updates... Still on track to be delivered on Tuesday :)
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Got the Arc 10 and it is cool. Rooting also worked. Started by removing ALL kobo apps :)

The stupid part: to use the auto on/off features only the original sleep cover works - and this is a. expensive ($50) and b. according to some reviews pretty bad quality. Still, I will get it as the automatic sleep / wake up feature is key.
[Android Software/Hacking General [Developers Only]] edjuh:
towelroot v1 comes with a Android/Exploit Trojan Horse. (Eset Nod32 Version8)

Someone have a clean version?
[Android Software/Hacking General [Developers Only]] madman604:
Goto towelroot.com for latest version? Edit didn't read you needed v1
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
If you use the link provided - that file is clean. Some antivirus programs automatically call any root etc. application a virus. That is just wrong. (I also get sometimes such alerts - so I just put my antivirus to sleep for a while in such a case)

On a related note: why do you need to download the app to your pc? Just download directly to your tablet - that way you do not have to worry about (false) virus alerts...
[Android Software/Hacking General [Developers Only]] edjuh:
Thnks! this works. i download it with my tablet
[Android Software/Hacking General [Developers Only]] andrew749:
ok so has anyone got ahold of the kobo team recently.
[Android Software/Hacking General [Developers Only]] Vbeaucher:
Ok, here's my very nubby question, I almost feel sorry for asking it...

I'm waiting for my Arc 7HD (110$ for the 32gigs, not bad I think) and I'd like to know: why should I (or not) root it? I know it comes with Android 4.2.2, maybe Kobo will never upgrade it, but then again, for a basic usage, it seems to the job pretty nicely (i.e. being a tablet, not necessarily an e-reader). So, what gives?

Thanks for you input, it's quite appreciated.
[Android Software/Hacking General [Developers Only]] Gadgetguy2005:
Well. The kobo apps are junk (unless you want to use the Kobo as an ebook reader) - if you root you can remove them. Then, there are a number of other apps which make the tablet much more capable - but they often need root. Can you survive without root? Yes, you can. You can put an alternative launcher - use that as default, and you are set. But some of the features of the tablet you will be unable to use without rooting (just google it - what are the benefits of rooting - as that is pretty much the same for all tablets)1
[Android Software/Hacking General [Developers Only]] Vbeaucher:
Thanks for this answer. After I posted my question, I googled it and find some websites with good insights, like this one: http://trendblog.net/root-android-device-reasons-benefits/. I'll continue my readings, your points are a good adon. I guess my main question now is wether or not I would be able to put back in the original ROM in case of a problem that would require a repair or an exchange under warranty.

As for an alternative launcher, I found this one that seems to be interesting, mimicking KitKat: http://app4smart.com/en/3181-mini-launcherkitkat-ui.html

Speaking of KitKat, is there any hope that the Arc 7HD could be upgradable to a more recent Android? Would it take more that juste rooting it and installing the new OS?

Thanks!
[Android Software/Hacking General [Developers Only]] madman604:
Sorry if I missed it but is there a way to root the latest update on the Arc 64gb? ( not arc 7 )
[Android Software/Hacking General [Developers Only]] Vbeaucher:
Well, it seems Mini Launcher (Kitkat UI) is incompatible with the 7HD...
[Android Software/Hacking General [Developers Only]] realist123:
I'm getting my 10HD on Monday and was thinking of giving a port of CM a try.

It looks like the 10HD is very similar to the Asus Transformer Pad ("tf701t")

Then again, I really have no idea what I'm doing......
[Android Software/Hacking General [Developers Only]] cdrivex4:
Have u seen this: http://xdaforums.com/showthread.php?t=1908008?

I might be tooling around with it once I root my arc 7 HD..

It surely can't be that easy?
[Android Software/Hacking General [Developers Only]] yobikap:
Kernel source kobo arc 10HD

I have ordered one kobo arc10 HD today,

I have found this kernel source on github:

https://github.com/Yobikap/Kobo-Arc10HD

In the upcoming weekend, I will try to build Kitkat 4.4 with the kernel sources.
[Android Software/Hacking General [Developers Only]] teeseeuu:
Was waiting for source. I had no luck contacting the manufacturer.
[Android Software/Hacking General [Developers Only]] edjuh:
KitKat 4.4 would really be great!
[Android Software/Hacking General [Developers Only]] yobikap:
Good news. For Kobo arc10 HD, I have compiled a new recovery.img file, and this version has support for internal SDcard, where as the original version was not working correctly.

For the flash instructions, please see the instructions on the first page of this thread.

See the attachment for the recovery, and I am not responsible for if you brick your device, so use it at your own risk!

I will message the original poster of this thread [MENTION=547180]dazza9075[/MENTION], so that we can speed up things to get Android 4.4 working on this tablet.