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We strongly recommend to readRules section "Android - firmware"

New threads need to be created only inroot partition! In the future, they will be processed by moderators.


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> DNS AirTab E74 - Firmware
What is missing in the subject?
What is missing in the subject?
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Answers to questions [ 3 ] ** [13,04%]
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Total votes: 23
 
Virus25418
Message#1
21.02.13, 07:18
I got to the forum.
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DNS AirTab E74 - Firmware
PictureDNS AirTab E74
Description | Discussion � | Firmware � | Games �

Welcome owners of this device!
At the moment there are 2 versions of devices, be careful flashing firmware.

For newbies
1. Read the rules -
If you, when registering on the forum, forgot or thought that the rules are not for you, but they still gave you a ban or a comment and you do not understand why?
Then use the rules to solve problems.

2. How to ask a question and get an answer? -
You can always get an answer, but the correct one is only when there is all the necessary information on the subject.

3. How to find the answer when I say "the answer was already given" -
There are 3 types of search on the forum:
3.1 - throughout the forum.
3.2 - on the topic.
3.3 - by keywords. (Located on top and bottom of each forum)

4. I do not understand how to flash my device?
For this there is Documentary information in this header how to do this without harm to the device.

5. I have questions, but how can I correctly ask him and not violate forum rules?
Read the rules
See the Forum Cap,
Use the Search and then ask a question describing the problem and how it happened.

The remaining questions and answers are looking in the FAQ.


Official firmware / Not official firmware
Official firmware
First revision firmware
Firmware for second revision

Not official firmware
First revision:
Chinese firmware
Who has the native firmware hanging, I advise you to flash the Chinese one. And then all the problems disappear. Attention! In the Chinese firmware, the camera does not work.
Chinese firmware from fayloobmennik.net
Chinese firmware from cloud.mail.ru
Chinese firmware with root and already built in custom cwm and percentage round battery

Dsmod v1.0 - The author of this firmware write to the curator
Scripts in addition:Go to page
Appearance Scripts:Click here!


Second revision:


Cwm firmware:


Test(Not recommended for everyday use)


Backups


To add your custom
To add your custom, click on the complaint button with the post of your firmware and write the following text:
Hello, you can add my custom to the cap.
Names (Well, here you are, write what is called).
Or write to the curator of the topic all the same.



FAQ

������: download


How to determine which revision?

Answer:
The audit can be determined by the date of purchase, all devices below the period May 2013 is the first revision,
All that is higher May 2013 is the second, until a new version appears.

Question:
And what if you put the firmware wrong.
I heard that a tablet can burn.

Answer:
The tablet does not burn, but it can turn out to be a brick. At best, you can simply reflash, at worst - you will have to disassemble and do a reset by closing the contacts of the microcircuit, and then also flash it.
The worst case happens when you upload firmware from an incompatible tablet.

Question:
What games are supported by our device?
Answer:
Your answer is on the top, in the Games topic.

Question:
How to enter the firmware mode? / How to enter Recovery mode?
Answer:
This can be done by holding 2 buttons on the tablet:
Power on and back button (Power on and sound +).
For recovery mode, the USB cable must be disconnected.
For firmware mode, the cable must be connected.

Question:
How to disable / enable soft buttons?
Answer:
With Root, locate the Build.prop file and add it to the end.
qemu.hw.mainkeys =, a digit from 0 to 1 1 turns it on, 0 turns it off.


Instructions
Off Instructions on firmware -Attached fileE74_FW_update_instructions.zip(917 bytes)

Instructions for flashing firmware via computer (2nd revision):
Recovery Instructions
FAQ on setting up CyanogenMod 10.1

Recovery Installation
1.We download CWM (look in the header)
2. We unpack drivers for your OS (They lie in the archive in the drivers folder)Drivers are only available for Win 7/8 x86 / x64At the expense of XP, Linux, etc., I do not know!
3. Install the firmware driver - turn off the tablet, press and hold Volume + (Back) and connect the cable. After that, a new unknown device should be defined in the device manager. We put on it the driver mentioned above (I hope everyone knows how to do it). After the drivers set the device to be defined as RK30XX Device or something like that. Disconnect the tablet from the computer and go to the next item.
4. Go to the firmware mode - turn off the tablet, hold down Volume + (Back) and insert the cable. (You can try without disconnecting the tablet after step 3, skip this step and immediately start it)
5.Raspack the archive, run RKAndroidTool.exe and press Flash ROM
6.All.
In order to enter CWM you need to turn off the tablet, hold down the Volume + (Back) button and hold down the power button. After the appearance of the logo - let go.


How to get full privileges (Root)
Receiving the root and further modifying the system (firmware) increases the risk of rejection of the warranty. Not all service centers can find that the system has been modified, but if you want to visit a service center you need to flash the official firmware.

There are 3 known ways to date:
Through the computer,
Through Recovery mode,
Through specials. Programs
.

How to install CWM read in the "Information".



Software
Drivers:
Attached fileRK3066_USB_Drivers.zip(251.73 KB)


Flashers:
Attached fileRKBatchTool_v15.zip(19.82 MB)
- For the first revision
RKAndroid Tool 1.37- For the second revision


Useful
How to put the Russian language in the Chinese firmware
Attached Image
Attached Image
Attached Image
Attached Image


Xposed
You can easily change both the appearance of the firmware and the functionality.
How it's done? Enough to installXposed Frameworkand install
necessary modification in the same topic as the program.

Featured:
Gravitybox


Useful program:AROMA Filemanagerworks through the recovery mode,
will help if you screwed up something in the firmware and can not boot.

Custom recovery




Patches
Patch for custom DNS AirTab E74 Costum v2
If you have a bootloop then use this patch.
The problem occurs if you decide to switch to DNS AirTab E74 Costum v2 with AirTab E74 Costum v3 DNS.



Utilities for disassembling / assembling firmware
For those who wish to do custom, modifications, and so on.
The program for parsing img images:RKWinTools_v140
Program for parsing APK:Apk manager
The program for the work of the above software:Java


Changes in the cap
13.06.2015Instructions for obtaining full preferences were transferred to a single post.
23.04.2015Redesigned header, added instructions, updated links, added introductory for beginners,
Added item Patches, Added item FAQ
22.04.2015Mini sorting
19.07.2014Added firmware android 4.2.2


Attention: you do all actions with the device at your own risk, the administration of the forum and the author is not responsible for the damaged device and the curves of the owner's hands.

There is no curator in the subject. If there is a user in the subject who wants to become a Curator and the correspondingRequirements for candidates, he can apply in the topicI want to be curator(after having studied the topic header and all materials for curators).
Prior to the appointment of the curator, on filling caps, please contactmoderatorssection through a buttonPictureunder the messages to which you want to add links.


Post has been editedsnekt @ - 19.10.15, 01:04
Reason for editing: Navigator
sivarius
Message#22
23.02.13, 07:54
Need more gold!
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The creator of the topic resigned from the forum, to go nuts now.


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vegsen
Message#23
23.02.13, 11:33
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yozhig_f_tumani,To replace the kernel, you need to replace kernel.img?
Madguest
Message#24
23.02.13, 12:20
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vegsen,
Yes, exactly, but already there is a kernel that works without glitches and supports our camera?
vegsen
Message#25
23.02.13, 12:21
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MadGuest
not yet
yozhig_f_tumani
Message#26
23.02.13, 12:46
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yozhig_f_tumani, to replace the kernel you need to replace kernel.img?

Not certainly in that way. Depending on what firmware is installed. If the Chinese firmware is installed, it will be enough to replace kernel.img
If installed factory or Chinese original. then the kernel is also embedded in boot.img, and you need to disassemble this boot.img into ramdisk and kernel, replace this kernel, and reassemble boot.img. There are still nuances to do everything right ...
Yes, I almost forgot, the recovery.img also has a kernel.


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vegsen
Message#27
23.02.13, 13:20
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But where to find the Chinese original?
yozhig_f_tumani
Message#28
23.02.13, 13:48
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vegsen,
http://file2.mydrivers.com/tablet/Teclast_...-V1.15-46B9.zip


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Madguest
Message#29
23.02.13, 16:29
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By the way, can anyone explain the distribution of memory?
Here is a piece of the parameter file, from the dns firmware
bash-4.2 $ cat / data / RK30XX / dns / unpack / parameter
CMDLINE: console = ttyFIQ0 androidboot.console = ttyFIQ0 init = / init
initrd = 0x62000000,0x00800000
mtdparts = rk29xxnand:
0x00002000 @ 0x00002000 (misc),
0x00006000 @ 0x00004000 (kernel),
0x00008000 @ 0x0000A000 (boot),
0x00008000 @ 0x00012000 (recovery),
0x000C0000 @ 0x0001A000 (backup),
0x00040000 @ 0x000DA000 (cache),
0x00200000 @ 0x0011A000 (userdata),
0x00002000 @ 0x0031A000 (kpanic),
0x00100000 @ 0x0031C000 (system),
- @ 0x0041C000 (user)

but from the Chinese
sh-4.2 $ cat / data / RK30XX / china / unpack / parameter
CMDLINE: console = ttyFIQ0 androidboot.console = ttyFIQ0 init = / init
initrd = 0x62000000,0x00800000
mtdparts = rk29xxnand:
0x00002000 @ 0x00002000 (misc),
0x00006000 @ 0x00004000 (kernel),
0x00008000 @ 0x0000a000 (boot),
0x00008000 @ 0x00012000 (recovery),
0x000c0000 @ 0x0001a000 (backup),
0x00040000 @ 0x000da000 (cache),
0x00400000 @ 0x0011a000 (userdata),
0x00002000 @ 0x0051a000 (kpanic),
0x00100000 @ 0x0051c000 (system),
- @ 0x0061c000 (user)

As I understand it, the first number is the number of blocks (512 Bytes = 200 (hex)), and the second after the @ symbol is the address of the beginning of the section (or rather, the offset)
Thus, it turns out that the boot partition we have at offset 0x2000 (hex) and has a size of 2000 (hex) * 200 (hex) = 4194304 (dec), that is, 4 MB.
Now if you look at the file sizes:
by dns:
-rw-r - r-- 1 ruslan users 8929280 Feb. 23 14:58 boot.img

the Chinese:
-rw-r - r-- 1 ruslan users 1067406 Feb. 23 11:52 boot.img

It turns out, or I misunderstood (but my calculations are confirmed by the size of the partitions read directly from the device) or the dns partition has 2 times more boot than a NAND space is allocated for it (again, strange as it should not work in principle) . Explain, please, who is in the subject.

Also, it is obvious that the Chinese have left 2 times more space under the section / userdata

Post has been editedMadguest - 23.02.13, 16:33
fike83
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23.02.13, 18:08
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MadGuest
If the memory does not change, then somewhere slipped about memory on dns and Chinese. In the day under the program seems to be given more, or vice versa I do not remember exactly.
yozhig_f_tumani
Message#31
23.02.13, 18:17
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It turns out, or I misunderstood (but my calculations are confirmed by the size of the partitions read directly from the device) or the dns partition has 2 times more boot than a NAND space is allocated for it (again, strange as it should not work in principle) . Explain, please, who is in the subject.

From the device, boot.img is dumped with a size of 16 MB, regardless of its real size (all that is larger than the actual size is clogged with a void). Somewhere you miscalculated. There will be time, I will count this your math :)


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Madguest
Message#32
23.02.13, 20:20
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yozhig_f_tumani @ 02.23.2013, 19:17*
From the device, boot.img is dumped with a size of 16 MB, regardless of its real size (all that is larger than the actual size is clogged with a void). Somewhere you miscalculated. There will be time, I will count this your math :)

I questioned my tablet now, that's what answers:
root @ android: / # cat / proc / mtd
dev: size erasesize name
mtd0: 00400000 00004000 "misc"
mtd1: 00c00000 00004000 "kernel"
mtd2: 01000000 00004000 "boot"
mtd3: 01000000 00004000 "recovery"
mtd4: 18000000 00004000 "backup"
mtd5: 08000000 00004000 "cache"
mtd6: 80000000 00004000 "userdata"
mtd7: 00400000 00004000 "kpanic"
mtd8: 20000000 00004000 "system"
mtd9: 12a400000 00004000 "user"

root @ android: / # fdisk -l / dev / mtd / mtd0
Disk / dev / mtd / mtd0: 4 MB, 4194304 bytes
255 heads, 63 sectors / track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd1
Disk / dev / mtd / mtd1: 12 MB, 12582912 bytes
255 heads, 63 sectors / track, 1 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd2
Disk / dev / mtd / mtd2: 16 MB, 16777216 bytes
255 heads, 63 sectors / track, 2 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd3
Disk / dev / mtd / mtd3: 16 MB, 16777216 bytes
255 heads, 63 sectors / track, 2 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd4
Disk / dev / mtd / mtd4: 402 MB, 402653184 bytes
255 heads, 63 sectors / track, 48 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd5
Disk / dev / mtd / mtd5: 134 MB, 134217728 bytes
255 heads, 63 sectors / track, 16 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd6
Disk / dev / mtd / mtd6: 2147 MB, 2147483648 bytes
255 heads, 63 sectors / track, 261 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd7
Disk / dev / mtd / mtd7: 4 MB, 4194304 bytes
255 heads, 63 sectors / track, 0 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd8
Disk / dev / mtd / mtd8: 536 MB, 536870912 bytes
255 heads, 63 sectors / track, 65 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

root @ android: / # fdisk -l / dev / mtd / mtd9
Disk / dev / mtd / mtd9: 5003 MB, 5003804672 bytes
255 heads, 63 sectors / track, 608 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes


boot is actually 16 MB.
For sure. I looked at the line of the misc section, and I thought about the boot, and that was all mixed up in a heap. So it all came together.

Post has been editedMadguest - 23.02.13, 20:36
fike83
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24.02.13, 11:27
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By the way, does nobody finish the cyan? As far as I remember with wi-fi, the problem was with memory
yozhig_f_tumani
Message#34
24.02.13, 13:58
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By the way, does nobody finish the cyan? As far as I remember with wi-fi, the problem was with memory

Yes, it's still there: (


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yozhig_f_tumani
Message#35
25.02.13, 07:59
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Own version of the firmware:update-E74-by-yft-1.0
Based on Chinese firmware. It is installed as a regular factory firmware.
Recommended for installation only on those E74 tablets, which have frequent freezes and random reboots.

Attention! Before flashing, copy all the data in the internal flash memory to a PC. Since you need to format it after installing the firmware

Changes:
1. Logo and bootanimation from DNS
2. The corporate name Teclast in the core is replaced with the native Airtab E74
3. Default Russian language
4. Moscow time zone
5. Modified build.prop for better compatibility with the play market (defined as Samsung).
6. Removed from the list of applications Chinese manual

Known issues:
1. The camera does not work;
2. After installing the firmware, formatting the internal flash memory is required.
3. Route though installed, but with the wrong permissions. A fix is ​​required.
You can fix the root in several ways: a) Install CWM 6.0.2.7 and at the first exit from CWM, it will offer to fix the root; B) roll over the top of the root, for example, using TPSarky-VonDroid-Root (you will need an ADB driver on the computer).

Post has been editedyozhig_f_tumani - 25.02.13, 08:25


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vegsen
Message#36
25.02.13, 15:05
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And how can you unpack boot.img, etc. in Windows? The unyaffs utility did not help
iwi
Message#37
25.02.13, 16:14
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Own version of the firmware: update-E74-by-yft-1.0

I stitched this firmware, another tablet), I took it for the small one for games, but the hangs were a bit stuck, with this firmware, the flight is normal, plus I couldn't deliver, there are few messages, yozhig_f_tumani THANKS!

Post has been editediwi - 25.02.13, 16:41
yozhig_f_tumani
Message#38
26.02.13, 00:25
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And how can you unpack boot.img, etc. in Windows? The unyaffs utility did not help

unyaffs is not useful, here everything is packed differently. What is your firmware installed? In different firmware unpacked in different ways ...


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vegsen
Message#39
26.02.13, 03:50
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yozhig_f_tumani,
My original Chinese changed a little
hackk
Message#40
26.02.13, 07:26
Good adviser
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When the firmware gives an error on the first paragraph of the Test Device. I tried a bunch of firmware, the cord from Sony, went into the recovery - a recumbent droid and that's it. When I tried to install the recovery - Test device fail.

The tablet caught the bootlap after changing the font. Maybe you can somehow get rid of the bootlap without firmware, otherwise it’s not sewn


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yozhig_f_tumani
Message#41
26.02.13, 08:56
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Vegsen @ 02.26.2013, 11:50*
My original Chinese changed a little

then your boot.img contains initrd.img (ramdisk) and zimage (kernel).
For example, you can unpack the utility abootimg.exe from this utility package:link
abootimg -x boot.img

The received initrd.img is also unpacked, for example, utilities from this set:link
unpack the archive, go to the folder \ bin and throw initrd.img there
You create this batch file in the same folder:
ren initrd.img initrd.img.gz
gzip -d -f -q initrd.img.gz
rm -f -r boot
mkdir.exe -p boot
cd boot
.. \ cpio.exe -idm <../initrd.img
cd ..

In the \ bin \ boot \ folder will be unpacked ramdisk


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