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> DNS AirTab E74 - Firmware
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Virus25418
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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
yozhig_f_tumani
Message#2
21.02.13, 09:00
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I would not introduce CWM into the firmware, because after installing the tablet on the first boot, it falls out into this CWM and inexperienced users can enter into a stupor what to do next. The original recovery does everything you need with an automatic machine - cleans the cache and date.
Therefore, it is recommended to install the firmware with the built-in CWM only to those who are familiar with it.


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toshiba1984
Message#3
21.02.13, 09:03
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yozhig_f_tumani,
Probably just need to add that when after the firmware in the cwm plash loaded, you need to press the reboot button.
Is the camera still dumb?

Post has been editedtoshiba1984 - 21.02.13, 09:13
yozhig_f_tumani
Message#4
21.02.13, 09:48
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Toshiba1984 @ 02.21.2013, 17:03*
Is the camera still dumb?

deaf. I'm a little familiar with Linux. so far only ubuntu installed :)
Of all the hi704.ko ready-made modules found in the internet, not one came up. Even after the substitution of vermagic. Because everything is not under our percents were sharpened.

ps: We also have a person who already compiles a module. Maybe that will work for him ...


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yozhig_f_tumani
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21.02.13, 09:59
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This is also necessary in the cap:
Utilities for unpacking / packing / modifying firmware based on RK3066:link. Thanks to SergioPoverony for the work done.

Here is the direct link:http: //savagemessiahzine.com/forum/dl/post/2540588/FW_tool_RK30xx_2.0.rar

Post has been editedyozhig_f_tumani - 21.02.13, 10:00


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trewn
Message#6
21.02.13, 14:57
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But what if you put the firmware is not free.
I heard that a tablet can burn.
and will solve the problem with applications (reboot / friezes)

Bought 2 days ago.
but it reboots and hangs in games to the impossible.

already thinking back it attributed.
yozhig_f_tumani
Message#7
21.02.13, 15:16
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But what if you put the firmware is not free.
I heard that a tablet can burn.
and will solve the problem with applications (reboot / friezes)

from the cap:
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.


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.


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trewn
Message#8
21.02.13, 15:52
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yozhig_f_tumani @ 02.21.2013, 15:16*
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.


if i do everything right ..
Then the 100% chance that the firmware will not fly off?
and that won't get a "brick"
yablant
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21.02.13, 15:59
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Bought 2 days ago.
but it reboots and hangs in games to the impossible.

already thinking back it attributed.

The same thought was. But when replaced most likely will fall the same, because they are more defective than normal.
Read in the discussion of E74 about the frequency reduction, if you are afraid to install the Chinese firmware, or you need a working camera (in China it is not working at the moment).

Posted 02/21/2013 3:59 PM:

if i do everything right ..
Then the 100% chance that the firmware will not fly off?
and that won't get a "brick"

And if you get it means all the same I did something wrong. If not sure - do not mess. Take it to the store and change it to another model.
yozhig_f_tumani
Message#10
21.02.13, 16:10
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Trewn @ 02.21.2013, 23:52*
if i do everything right ..
Then the 100% chance that the firmware will not fly off?
and that won't get a "brick"

I flashed my tablet 15 times probably. All firmware went well - and the factory and the Chinese.
1 time out of curiosity, I decided to flash the firmware from pipo s1, and got a brick. It seems that the characteristics of the tablets were almost the same, but the tablet stopped giving signs of life in general. I had to disassemble it.
Of course, as with any other device, there is a small risk of curved flashing. Mostly this happens if the cable is bad, or the voltage drop in the el. network. If you are sure that the data transfer via usb will not be interrupted during the firmware, you can flash it.
But first, carefully study the instructions, and re-read the topic on the e74 forum.


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yozhig_f_tumani
Message#11
21.02.13, 17:17
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Recently, in the main topic, we raised the issue of flashing through the usb 3.0 port (link).
It turns out not to be groundless, here they also believe that it is better not to flash through usb 3.0:Teclast P85 Dual Core RK3066 - Firmware (Post # 15368675)


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trewn
Message#12
21.02.13, 19:42
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I could not find anything about reducing the frequency of the process.
mb someone will see throw in the message..or post it in the subject.
if not difficult
Madguest
Message#13
21.02.13, 20:51
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modulewhich turned out at me. At least through insmod is loaded without expletives.
Collected fromof thesesource, only necessary in the file
./include/config/kernel.release change 3.0.8 to 3.0.8+
But I have a persistent feeling that the unit with the substitution of the module would roll if the driver for the camera were also loaded with the module in the drain, and was not compiled into the kernel. That is, now we need to dig in the direction of the kernel assembly, which would run on our hardware, select the correct config. To this I still lack knowledge, alas.

Post has been editedMadguest - 21.02.13, 20:54
toshiba1984
Message#14
21.02.13, 21:38
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trewn
Ithisprog yuzayu. I have a Chinese, and of course everything works fine. But I also lower the frequency on it, as I lack the 1.2 GHz for my needs and the battery does not sit down so quickly. For the normal operation of the root rights are needed.

Posted 02/21/2013, 21:38:

MadGuest @ 02.21.2013, 21:51*
To this I still do not have enough knowledge, alas

Sorry. :( A dns vig source will give ... zhlobё still something.
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21.02.13, 21:55
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Toshiba1984 @ 02.21.2013, 22:38*
And the source code of the whig will give ... more than that.

I wrote to the Chinese, since their firmware is more stable;) so far there is no answer.
At the moment we have:
The system.img on the Chinese firmware is smaller in size than in the firmware from dns, so much smaller that I can not even shove a 20Kb module file into / system / lib / modules, for further experiments. Now we need to look for a way to change the size of this image.

UPD:
I mounted the system.img file from the Dns firmware, deleted everything that was there and copied the contents of the system.img there from the Chinese firmware. Added the same module for the camera. Because The size of the system.img file has changed - we also need to edit the memory allocation in the parameter file in the last line (the addresses where the partitions in the flash drive are located).
These are the / system directory addresses in the dns firmware
0x00100000 @ 0x0031C000 (system), - @ 0x0041C000 (user)
These are addresses in Chinese firmware.
0x00100000 @ 0x0051c000 (system), - @ 0x0061c000 (user)
Since I took the file system.img from the DNS, it's pretty simple.
I collected the image of the patch, I'll go sew.

Post has been editedMadguest - 21.02.13, 22:43
toshiba1984
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21.02.13, 21:57
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MadGuest
I also wrote to the Chinese, the talk that I asked them I don’t remember exactly. In response, it came that they seem to be releasing a new one soon: D
Dear alex
Yes.
We will release the firmware soon.
Best regards
Sincerely
Any question, please tell us at the first time.
Support service
yozhig_f_tumani
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21.02.13, 23:18
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MadGuest @ 02.22.2013, 04:51*
Gathered from these sources,

It is said that there are more complete sources under rk3066
link to narod.ru


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vegsen
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22.02.13, 07:58
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came across a very interesting thingtyk. Is it possible to implement on our device?)
yozhig_f_tumani
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22.02.13, 08:15
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vegsen,
hardly, all this is too complicated. And we do not have hdmi, without it, it makes no sense to put ubuntu on a tablet at all. The main purpose of the firmware is to display a picture on the big screen.

Post has been editedyozhig_f_tumani - 22.02.13, 08:18


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Madguest
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23.02.13, 00:11
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In the topic "Discussion DNS AirTab E74" there was a message that replacing the kernel of the Chinese firmware with the kernel from dns leads to glitches. I CONFIRM, it is. I poured the core from the dns, the tablet turned on and hung up in a couple of minutes.
yozhig_f_tumani
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23.02.13, 02:57
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MadGuest
Yeah, I did it too. And also, on the contrary, replacing the DNS kernel with the Chinese kernel solved the hang problem, the camera did not work


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