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[eBay.ca] Kobo Arc 7 HD $30+$7 shipping! (w/ rooting guide) (non-HD $20+$7)

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  • Nov 15th, 2017 11:10 am
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[OP]
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Jun 6, 2013
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[eBay.ca] Kobo Arc 7 HD $30+$7 shipping! (w/ rooting guide) (non-HD $20+$7)

http://www.ebay.ca/itm/Kobo-Arc-7HD-refurbished-Tablet-Android-16GB/132359250244

http://www.ebay.ca/itm/Kobo-Arc-7HD-refurbished-Tablet-Android-16GB/132359250244

The seller is highly rated and offers FULL refund, i.e., even shipping charges.

the non-HD version is also on sale for $20

http://www.ebay.ca/itm/Kobo-Arc-7-refurbished-Tablet-Android-1024-x-600-8-GB/132359251480

http://www.ebay.ca/itm/Kobo-Arc-7-refurbished-Tablet-Android-1024-x-600-8-GB/132359251480

Here is a detailed root + customization instruction written by me, plus some other misc. information that some might find helpful:
Glancealot wrote:
Oct 7th, 2017 9:39 pm
I finally figured out this tablet, enjoy, guys!

Kobo 7 HD (K7H) is probably the cheapest (so far) FHD tablet that you can get in the history of tablets, I bought mine (refurbished 16GB, but appears to be brand new) a couple days ago for around $40 CAD.

Here are the steps I took to make my K7H into a bookreader with full browsing capabilities with a superb battery life.

***start of preparation***

(you need to re-perform preparation if you screw up and brick your K7H at any time during this guide)

download mfastboot-v2.zip from here

https://androidfilehost.com/?fid=95916177934532795

if this link above expires, google mfastboot-v2.zip and i am sure you can find a valid one somewhere.

the zip is 1.36MB and should contain the following 7 files:

AdbWinApi.dll
AdbWinUsbApi.dll
linux-fastboot
mfastboot.exe
osx-fastboot
aapt.exe
adb.exe

**extract all contents to a new folder on your desktop, let's call this folder HOME folder from now on.**

next, download

http://download2.kobobooks.com/apollohd/update-ota339.zip

if this link above expires, google update-ota339.zip and i am sure you can find a valid one somewhere. it is 382MB.

and copy/move it into HOME folder

fully charge your kobo

reset your kobo by pressing the power on (PO) button and then immediately pressing the volume down (VD) button, you should then be brought to K7H's system recovery interface, choose wipe data / factory reset by pressing VD twice, and then press PO. then pressing VD 7 times until you are at "Yes", then press PO again. then wait for it to finish.

next connect your kobo to your PC with the USB cable that came with K7H. on K7H, press VD once to select "apply update from ADB", press PO, and you are brought to a waiting screen, at the same time, the computer will install necessary drivers needed. on PC, hold down Shift key and right mouse click in HOME folder and select "Open command window here" (make sure you don't have any file highlighted), in the command window, type

**adb sideload update-ota339.zip**

this should bring you to this screen within the command window on your PC

https://i.imgur.com/WxsAxGH.jpg

one comment: feel free to disconnect and reconnect K7H to your PC a couple times if you encounter error messages such as "error: device not found" "daemon not running" etc after you type adb sideload update-ota339.zip

on K7h, it will install the firmware and a couple of yellow lines will appear and the final yellow line should say "Install from ADB complete."

https://i.imgur.com/JhWHt2U.jpg

next, reboot system now should be automatically selected, simply press PO to restart your K7H.

***end of preparation***

your K7H will be stuck at the Kobo screen for a while, be patient. once your tablet is booted up, you need to go through the whole registration/update process. this part doesn't require any guidance, although it may appear you can only do this with a kobo account, so register one on your PC.

once you are in, press the bottom right icon to go to apps, select settings, scroll to the bottom, select

"about kobo arc 7HD", tap on "build number" 7 times to activate developer options.

go back to settings by press the back-up key at the bottom left corner, scroll to bottom

select "developer options"

checkmark "USB debugging"

uncheck "verify apps over USB"

go back to settings by press the back-up key at the bottom left corner, scroll to bottom,

select "security"

checkmark "Unknown sources"

uncheck "verify apps"

now download **tr_old.apk** from here and save it into HOME folder.

https://forum.xda-developers.com/attachment.php?attachmentid=2843562&d=1404980556

if this link above expires, google tr_old.apk and i am sure you can find a valid one somewhere.

on pc, hold down Shift key and right mouse click in HOME folder and select "Open command window here"(make sure you don't have any file highlighted), in the command window, type

**adb install tr_old.apk**

again, feel free to disconnect and reconnect K7H to your PC a couple times if you encounter error messages such as "error: device not found" "daemon not running" etc. please note that, you can use this method to install WHATEVER app onto your K7H, even ones not meant for android 4.2.2, as long as you can download the apk of the app, you can get apk of apps by using google or from certain reputable sites like https://www.apkmirror.com/ or https://apkpure.com/ or https://www.apk4fun.com/ and etc.

now go to apps on K7H, open the new app towelroot, press the "make it rain" button and wait for K7H to reboot, **now your K7H is rooted.**

now on K7H, search for **SuperSU** by CodingCode from the google **play store** that you can access by going into apps (again, press the bottom right icon to go to apps), sign in using your google account, it should be the first result returned. please note that, your Kobo might restart on its own, as it is busy updating all kinds of softwares now that you signed into the playstore, as its CPU is quite slow and is easily overwhelmed. once things settle down, open SuperSU, press start, choose continue when it asks for binary needs update, choose normal when it asks the other question.

next, download **recovery.img - [Click for QR Code] (6.54 MB)** from here into HOME folder.

https://forum.xda-developers.com/showpost.php?p=47024957&postcount=4

assuming your K7H is still connected to your PC, on PC, hold down Shift key and right mouse click in HOME folder and select "Open command window here"(make sure you don't have any file highlighted), in the command window, type

**adb push recovery.img /sdcard/**

then type in the command window

**adb shell**

then type in the command window (make sure the screen of your K7H is turned on)

**SU**

a box will popup on K7H (i.e., look at your tablet), make sure you select "GRANT"

then type in the command window (by the way, you can always right click and select paste when you are in the command window)

**dd if=/sdcard/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS**

Next, in the command window press Ctrl key and C key as if you are copying something

then type in the command window

**adb reboot recovery**

now your K7H will restart

you will notice that the interface is different from earlier during the preparation step, "reboot system now" should be highlighted, press PO button, press VD 7 times to highlight

"Yes, disable recovery flash"

then press PO button.

**now your K7H has the Recovery Mod.**

next. search for nova launcher from the play store that you can access by going into apps

(again, press the bottom right icon to go to apps) and install the free one.

once it's installed, press the HOME folder button of your K7H (middle button of the three virtual buttons on bottom left), select Nova launcher and make sure you select Always.

now go to play store and search for **titanium backup** install it. run it and select "GRANT".

go through some menus where you always press "OK".

if you ever get stuck at the Kobo screen with three dots for a while, just connect K7H to your PC, hold down Shift key and right mouse click in HOME folder and select "Open command window here" (make sure you don't have any file highlighted), in the command window, type :

**adb shell input keyevent KEYCODE_HOME**

please note that the above command is case sensitive, i.e., KEYCODE_HOME must be capitalized

last thing, the screen is really bright at night, even when i adjust the brightness to minimum. so i figured out a way to adjust it further. install **f.lux** either through adb install or through app store, change the color driver to **tegra** and you are good to go.


if you are an advanced user, you can use **titanium** to uninstall A LOT of things.

i am not advanced, but through some trial and error, i managed to delete a lot of things, such as the drop down menu when you swipe at the top, and a lot of other things. doing this helped me extend the battery life to 10 days ([2 day 14 hour * 4](https://i.imgur.com/YNBwXMk.jpg)) with daily book reading and / or light browsing before bed, the standby battery life is around 20 days.

the system navigation bar also takes up a lot of screen real estate with its default status bar(top) and navigation bar(bottom), the difference is night and day, compare the following two images:

first is on a K7H where I got rid of both the top bar (no need for it really), and bottom bar (replaced system UI with [this app](https://play.google.com/store/apps/details?id=com.dogusumit.ortatus&hl=en))

second is on a regular K7H.

(don't pay attention to the large font, I set my text to large under accessibility)

https://i.imgur.com/WsH7IDC.png

https://i.imgur.com/HrcMsC7.png

the top bar and bottom bar together take up around 13% of screen real estate by my calculation.

btw, I learnt how to take SS of your tablet screen under adb (the above 2 SS are not taken with a camera like earlier), hold down Shift key and right mouse click in HOME folder and select "Open command window here"(make sure you don't have any file highlighted), in the command window, paste the following code and the screenshot should be under your HOME folder.

adb shell screencap -p /sdcard/screen.png
adb pull /sdcard/screen.png
adb shell rm /sdcard/screen.png

here is a SS of K7H running Moon+ Reader Pro

https://i.imgur.com/YC9mX7t.png
Glancealot wrote:
Oct 7th, 2017 11:52 pm
BTW guys, the post above was written for reddit, so the format is a little messed up.

here is a SS of my tablet's interface

https://i.imgur.com/fnrYNC9.png

I use moon reader and chrome to read books, use chrome to do light surfing, and can watch 4k youtube videos if i want to.

here is a screenshot I took while playing a 4k youtube video

https://i.imgur.com/e2m5UoS.png

gotta love the dimension of those pictures: 1200*1920. Winking Face

for completeness, here is the CPUz report.

https://valid.x86.fr/a/citm4v

lol it plays hearthstone fine, but due to one of the many things i deleted using titanium, i cannot log in (hearthstone would crash), but here is a SS where I clicked "I'm new" and started playing the trial:

https://i.imgur.com/bDbvFF4.png
Glancealot wrote:
Oct 1st, 2017 6:35 pm
I picked up the white ones i bought (2 hd 7) today.

Brand new unit, with brand new power adapter and additional USB cable!

Image
Last edited by Glancealot on Oct 11th, 2017 2:13 pm, edited 6 times in total.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
35 replies
Member
Nov 22, 2009
417 posts
208 upvotes
Can we use your guide to make the tablet less sluggish?
[OP]
Deal Addict
Jun 6, 2013
2093 posts
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Toronto
flaris wrote:
Oct 11th, 2017 2:22 pm
Can we use your guide to make the tablet less sluggish?
once you strip the system down to a bare minimum using titanium backup (this would take a lot of trial and error unless you are advanced), and if you always make sure that only needed apps are active, it can handle more than what people expect.

for example, when I run hearthstone, blizzard tells me that the system is below the minimum requirement, but it actually runs somewhat smoothly (of course not as smooth as ipad pro 9.7)

but at the end of the day, the cpu is quite old and it only has 1G RAM, therefore it is really meant to be a reader/light browser that sits on your nightstand.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
Jr. Member
Jan 20, 2013
101 posts
28 upvotes
Cold Lake
Anyway not to make the screen so warm? The yellow setting is annoying imo.
[OP]
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plznote wrote:
Oct 11th, 2017 3:14 pm
Anyway not to make the screen so warm? The yellow setting is annoying imo.
Ctrl+F and type f.lux when you see this post.

I tried many similar apps but this is the only one (so far) that works with this particular tablet.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
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Jun 6, 2010
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Toronto, Ontario
I think there was another post with lots of information before. Probably from the same seller. You can change the color of the screen with an app.
Last edited by theflyingsquirrel on Oct 11th, 2017 3:18 pm, edited 1 time in total.
If I buy something that is not in deep discounted, my father will punish me; everyone will laugh at me. I will be the strange kid who doesn't fit in.
Member
Jan 21, 2013
251 posts
175 upvotes
For those just looking for a quick root (no adb, no custom recovery), you can follow these steps posted by OP (italicized line added by me):
once you are in, press the bottom right icon to go to apps, select setting

select "security"

checkmark "Unknown sources"

uncheck "verify apps"

now download **tr_old.apk** from here and save it into HOME folder.

https://forum.xda-developers.com/attach ... 1404980556

once downloaded, open the folder you downloaded towelroot into on your 7HD and tap the APK you just downloaded and tap "Install"

now go to apps on K7H, open the new app towelroot, press the "make it rain" button and wait for K7H to reboot, **now your K7H is rooted.**
[OP]
Deal Addict
Jun 6, 2013
2093 posts
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Toronto
genericasianguy wrote:
Oct 11th, 2017 3:28 pm
For those just looking for a quick root (no adb, no custom recovery), you can follow these steps posted by OP (italicized line added by me):
for the main target audience of my original post, i.e., those who know very little about some of these fancy words that fly around "root" "recovery" "flash" "ROM" etc, I would still suggest reading my original post.

because, instead of a one-off "solution", it offers transferable knowledge, i.e., knowledge that can be used to quickly root and flash the next android device, with the help of google of course.
Last edited by Glancealot on Oct 11th, 2017 3:48 pm, edited 1 time in total.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
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Nov 4, 2008
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flaris wrote:
Oct 11th, 2017 2:22 pm
Can we use your guide to make the tablet less sluggish?
What I usually do when I get a new android device is go into the developer menu and turn off all the animations, and tweak a few of the other settings there. That usually makes the tablet a little snappier.

If possible (I'm not too familiar with this tablet), you could try flashing a lighter, custom rom and mess around with the governor and scheduler (possibly overclock , if kernel permits).

But as Glance mentioned, its a pretty old tablet with a yesteryear spec sheet. It's great bang for buck, but its no ferrari.
When given enough time, all threads on RFD can and will go off on a tangent.
Sr. Member
Mar 16, 2007
583 posts
43 upvotes
Mississauga, ON
Can it play YouTube and Netflix?
[OP]
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Jun 6, 2013
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xcel wrote:
Oct 11th, 2017 3:54 pm
Can it play YouTube and Netflix?
Ctrl+F and type 4K when you see this post. and yes, Netflix isn't something that's CPU intensive, Ctrl+F and type tr_old.apk to read about how to install any app (most of them anyway) onto this tablet, including Netflix.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
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Nov 1, 2010
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Does this have micro SD?
Uh, yeah, I'd like to speak to a Mr. Tabooger, first name Ollie.
[OP]
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Tabooger wrote:
Oct 11th, 2017 4:11 pm
Does this have micro SD?
no.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.
[OP]
Deal Addict
Jun 6, 2013
2093 posts
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msz87 wrote:
Oct 11th, 2017 5:17 pm
anyone need a kobo arc 10 hd in mississauga sq1 area? I got one from ebay for 75 for my mother she doesnt want it, selling for 60$. pm me.
Why didn't you open a return case? they refund full price + shipping.
It's always good to be underestimated.---Donald Trump

I never downvote anyone and I try to help everyone.

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