Restoring a tablet from a brick state. Restoring a tablet from a “brick” state You do all manipulations with the tablet at your own peril and risk

Hello everyone, today's article will be on the topic, update software tablet computer OYSTERS T72 3G official firmware.

You do all manipulations with the tablet at your own peril and risk!

Everything you need for firmware

Accordingly, the OYSTERS T72 3G tablet itself, with the battery charged at least 50%
Computer with operating system Windows system XP/Vista/7
microUSB cable
All necessary files for the firmware and the firmware itself, download here
HERE FIRMWARE FOR ALL OPERATORS, WITH ROOT RIGHTS, ALL JUNK REMOVED

Installing drivers

After downloading the firmware, you need to unpack it into a folder previously created on your desktop.

The folder name should not contain Russian letters or spaces

Go to the folder with the firmware, open the Driver_Auto_Installer folder, click on InstallDriver.exe ( driver installation).

In the next window that opens, click on the “Install this driver anyway” button, after which the following window will open.

Tap on the “Exit” button.

Software update

Turn off the tablet, connect it to the computer via a cord and press “Reset” on the tablet. The “Reset” button is located next to the power off button.

Now go to the SP_Flash_Tool folder and run the flash_tool.exe program

In the SP_Flash_Tool program window that opens, tap on the “Download Agent” button, the “SP_Flash_Tool” folder will open in which you need to select the “MTK_AllInOne_DA.bin” file and click the “Open” button.

The software modules of the Oysters T72 3G tablet will open in the SP_Flash_Tool program window.

Now you need to select the firmware mode, to do this, click on the button on the left and select “Firmware Upgrade”, then click “Download”.

Make sure the tablet is connected to the PC and press the “Reset” button on the tablet. The firmware process will begin.

If the firmware has not started, press the “Reset” button again.

After the firmware is completed, the following warning will open in the SP_Flash_Tool program window.

Close the program window, disconnect the tablet from the computer and press the “Reset” button on the tablet for about one second, then press the power button. Turning on the tablet for the first time after flashing the firmware took me about six minutes.

Conclusion

During the firmware installation, do not disconnect the tablet from the PC under any circumstances.

If some error occurs during the firmware installation, you need to disconnect the device from the computer, press the "Reset" button again and repeat all the steps again.

It is not so difficult as it requires attentiveness and confidence in your actions. Otherwise, there is always a risk of making the tablet inoperative, which will require you to reinstall or repair it.

In addition, system replacement occurs differently on tablets from different companies. Let's look at how the correct firmware for Oysters T74 MRI 3G and other models of this brand occurs.

What is required to flash Oysters products?

Many users would like to change the firmware of their Oysters tablet. There is nothing complicated about it, you just need to follow the instructions

Let us immediately note that in For different brand products, flashing occurs in different ways. The sequence of actions and stages themselves are practically indistinguishable, but different programs and components can be used.

So to change the system on any of the Oysters products with or without 3G you need the following:

Computer and USB cable
Drivers so that the tablet can be flashed
Directly the firmware file itself.

As a rule, when downloading system images for Oysters products, drivers are supplied with it. You can download the correct archive with files by searching on the Internet, but make sure that the firmware is truly suitable for the device, not only by brand, but also by series or modification.

How does the flashing itself proceed?

To flash Oysters T84 3G and most other models, you must follow the instructions:

Download the archive with the firmware and unpack it directly to drive C;

Pay attention! The name of the folder with files should not contain spaces or Russian letters.

In the downloaded files, find a document called Install Driver.exe, run it;
Despite Windows' claims, agree to install the driver anyway;
Open the SP folder Flash Tool and run the program of the same name with the extension .exe.;
In the window that appears, select “Download Agent”;
Specify the path to the system image called MTK_AllInOne_DA.bin, click “Open”;
Next, select the “Scatter-loading” key;
Specify the path to the file MT___Android_scatter.txt in the FW_rom folder.;
Now all that remains is to change the mode to Firmware Upgrade, after the change, click Download;
Check whether the tablet is connected to the computer, click on the physical Reset key or use the volume up/down buttons, after which the system replacement on the device will begin.

The process can be monitored by the yellow slider in the program, and upon completion a window will appear notifying you that the flashing is complete. Click Reset again and disconnect the tablet from the PC.

Please note that the first power-up will take a little longer than usual - this is normal for such a device.

Another way to replace the software

How to flash an Oysters tablet if the contents of the archive are slightly different from the example above?

In this case, the process will look a little different:

Turn off the tablet and hold down the volume up key
via USB
The system will launch the new hardware installation program - in the window that appears, select the “Install from a specified location” option, then “Next”
Click on the option “Search for the most suitable driver in specified locations" and "Include next search location"
Specify the path to the drivers folder from the archive with the firmware, click “Next”
After the drivers are installed, run the file with the .bat extension from the same folder.
The Commander program window will open in front of you and the device will begin flashing.
After installation is complete new system The line system.img sent successfully will appear.

You can disconnect the tablet from the computer and start it - as we already said, the first time it will take a little time to load.

As you can see, there are some differences in the flashing process. If you are not sure how to proceed, then focus on the contents of the downloaded archive - it contains Flash program Tool or a set of other documents.

Below are instructions from the website 4pda.ru and all the necessary files are collected together so that they do not get lost on the network. Full instructions from pdf has been transferred to this page for convenience.

Each revision has its own firmware! I have a revision1410599995
You can find out your revision number as follows: Settings/About tablet/User-ordered version
You should also pay attention to the build number

In this firmware:

1) The size of memory for applications has been increased - scatter, EBR1 and EBR2 have been changed in this way: 2.5Gb/50Mb - 2.5Gb application memory / 50Mb flash card
2) Recovery has been replaced by Carliv touch recovery ver. 6.0.4.4
3) Updated GAPPS, Libs, Setup Wizard on first launch, Launcher, Keyboard, Browser, Gmail, SuperSU, Ok Google, Player
4) Added ESFileExplorer, ESTaskManager, YandexDisk, Vkontakte, DublGIS, Viber, WhatsApp as operator content with the option to delete and restore after resetting the settings
5) All garbage removed
6) You can remove ESFileExplorer, ESTaskManager, YandexDisk, Vkontakte, DublGIS, Viber, WhatsApp (after Wipe the applications will return)
7) Some applications can be disabled, for example YouTube, Maps, GMail, TalkBack, etc.
8) Ok Google works and voice control, for example, I say Ok Google, Turn on the music. and he launches the player and turns on the music.
9) Transferring applications to MicroSD works

Screenshots:

Let's take:

1.MTK Droid Tools()

2. Sp Flash Tool (Download from Google Drive)

3. Drivers ()

4. Firmware (Download from Google Drive)+ Update_2015.02.18 + Update_2015.02.19 + Update_2015.02.20 ()

5. Instructions in pdf format ()

6. HtcCalibrate to calibrate the screen sensor()

Before starting, it is strongly recommended to turn off your antivirus!

Step one - Backup

The most difficult thing is to make a full backup before installing the firmware. (But in principle, whoever is too lazy can not do it, at their own peril and risk)

So we need:

1.MTK Droid Tools

2. Sp Flash Tool

3. Installed drivers

4. USB debugging enabled in phone settings

1. Launch MTK Droid Tools, connect the tablet, wait until you decide on the program.

2. Create a scatter file. To do this, click on the button that says “Block map -> next Create scatter file”, after which the file MTXXXX_Android_scatter.txt will be created in the folder with MTK Droid Tools, where XXXX is the model of your processor.

4. Next, go to the Reedback tab and click add, double-click on the block, save, the Reeadback block start address window will open. Let's not close it! Next, open the MT6582_Android_scatter.txt file with a regular notepad and find the partition_name: CACHE block, copy the value from the linear_start_addr: field and paste it into the second field of the window and click OK and save the file ROM_0, where it is advisable to put other numbers instead of zero.

5. Disconnect the tablet from the computer. Turn it off.

6. Click on the Readback button in the Sp Flash Tool and immediately connect the switched off tablet. After connecting, a red bar will immediately run quickly, then a blue one, wait for completion.... all this will take 20 (it took me 15 minutes), after completion you will have a file created in the folder with the Flash Tool called ROM_*your name*

7. Next, disconnect the tablet from the PC, close the SP Flash Tool, turn it on (tablet) and connect it back, USB debugging should be enabled. Launch MTK Droid Tools and wait until the tablet is detected in the program.

8. Go to the root, backup, recovery tab and click on the button that says “Make a backup from ROM_ flash drive”, in Explorer select the file ROM_*your name*, which is located in the folder with the SP Flash Tool and open it.

Wait until the bars run in MTK Droid Tools, then the program will offer you to do a CWM recovery - we refuse. Waiting for copying.

After all that has been done, find the finished backup in the MtkDroidTools/backups folder

9. Open the backup you just made and rename the recovery file factory_NONmodified_recovery.img to recovery.img, then the SP Flash Tool will load it automatically and you won’t have to specify the path.

1. Open MTk Droid Tools

2. Press the IMEI/NVRAM button

3. Click backup

4. Everything is ready. Remember that everyone has their own IMEI, and there is no point in sharing them

Step two - Firmware

Turn off the tablet and connect it to the computer.

Installing drivers

Turn on the tablet and go to the smartphone settings in the “security” menu item and check the “Unknown sources” checkbox.
Go to the smartphone settings in the “about phone” menu item and repeatedly tap on “build number” and as you see the inscription “you have become a developer” below, go to the tablet settings in the new activated menu item “for developers” (above the “about phone” menu) , there check the box for “USB debugging”.

Step 1. Create new folder in the root directory of the disk WITH: personal computer
(the folder name must be in Latin and must not contain spaces), move to it
downloaded archive and unpack it.

Step 2. Run the program "InstallDriver.exe" from folder "Driver_Auto_Installer"
unpacked archive.

Step 3. In the request window that appears operating system about installation
unsigned driver click "Install this driver anyway".

Once the installation is complete, you will see the following window:

Click the button "Exit".

Step 4. Turn off the tablet PC, connect it to a personal computer with
using a microUSB cable and press the button on the tablet "RESET".

Step 5. Run the program "flash_tool.exe" from folder "SP_Flash_Tool" .

Step 6. In the program window, in the tab "Download", press the button "Download Agent", V
in the window that appears, select the file "MTK_AllInOne_DA.bin" from folder "SP_Flash_Tool" and press
button "Open":

The main program window will display information about the software modules
Oysters T72X 3G tablet software:

Step 8 Once in the program "Smart Phone Flash Tool" information about
software modules, select firmware mode "Firmware Upgrade" V
drop-down menu and click the button "Download":

Step 9 Make sure your Oysters T72X 3G tablet is connected to your personal
computer and press the button on the tablet "RESET". In the program "Smart Phone Flash Tool"
The software update process will be displayed:

If the firmware process has not started, press the button "RESET" on the tablet PC again.

Step 10 After successfully downloading the software to the device, in the window
the following information will be displayed:

Step 11 Close the Smart Phone Flash Tool program windows.

Step 12 Disconnect your Oysters T72X 3G tablet from your PC.
Press the button on the device "RESET" for 1 second and by pressing the button "POWER" turn on
device. The “OYSTERS” splash screen will appear on the tablet screen and the device will continue installation
software.

During the tablet software update process
DO NOT TURN OFF. This may damage the device.

If during the firmware download process in the program "Smart Phone Flash Tool" will arise
error message, disconnect the device from the personal computer, press 1
second button "RESET" on your tablet and repeat from step 2.

 Try using a different microUSB cable, for example from another
portable device.
 After an error occurs, try restarting the program
"Smart Phone Flash Tool"
 Try using a different USB port on your computer (perhaps a different
personal computer)

Topic on 4pda Link there you can find a lot more useful information!

“Scrapping” a tablet or phone is a partial or complete loss of functionality of the gadget, which may cause not only the main menu of the device to stop functioning, but also the mode Recovery. A similar situation often happens when installing non-working firmware, accidentally deleting system files, failure to obtain chief administrator rights (root access) and in other similar cases.

Recovery methods

To restore a tablet on Android OS from a “bricked” state, you can do the following:

contact the service center;
perform resuscitation at home.

Next, we will consider the second option, since most of the procedures that will be offered to you in service center, you can do it yourself, while saving a considerable amount of money on the services of a specialist.

Resuscitating the tablet through the standard Recovery menu

If the operating system crashes when loading or the tablet freezes on the Android logo, then everything is not so bad. You can restore a “brick” from this state through the standard recovery environment, Recovery, which is integrated by default into all versions of the Android OS.

To perform the upcoming work, you need to have on hand a previously created backup of the tablet or a special zipped file with firmware that can be downloaded via the Internet. When choosing firmware, you need to make sure that it is compatible with your device.

Having successfully saved the required archive on your computer, you need to transfer it to your tablet. To do this, remove the built-in memory card from the gadget and connect it to the PC via a card reader. The archive is then copied to the SD card in the root directory. The flash drive can be disconnected from the computer and connected to the tablet.

Once everything is ready, you can proceed directly to resuscitation:

After confirming the above actions, the recovery of the tablet from the “brick” state will begin. After rebooting the gadget everything should work. The only problem is all the information previously saved in the device’s memory ( installed applications with settings, notes, SMS, etc.), will be lost forever. To prevent this, periodically do backups your smartphones(tablets) and for greater reliability, additionally save them on your computer’s hard drive.

Restoring a “brick” using CWM Recovery

CWM Recovery(Modrekaveri) is special program, which is installed on the tablet instead of the standard Recovery environment. It fits perfectly with most models of gadgets running the Android OS, and is an indispensable assistant when resuscitating a device from a brick state.

Installation of CWM Recovery

Install this program you can use the standard one Android menu, and using a personal computer. The first option will not suit us, since the “brick” does not allow us to install anything.

To install Modrekaveri you need:

Install drivers for your tablet on your computer. To find out which driver you need, you can connect the gadget to your PC, then go to “Device Manager” and see the necessary information. After this, the device must be disconnected from the PC.
Get the SP Flash Tool utility. This is a special program that allows you to install custom Recovery on a tablet or phone running Android OS.
Download the recovery-clockwork.img file to your PC, which contains all the information necessary for installing CWM Recovery. For each gadget model there is a specific version of this program. This must be taken into account when searching for a suitable file. For some devices there is both a classic and touch modification of Modrekaveri. Choose the one you like best.
Unzip the downloaded file.
Launch SP Flash Tool.
In the main window, click “Scatter Loading”, and then specify the path to the unzipped Modrekaveri.
Uncheck all the boxes except RECOVERY, and then click on Download.
Connect the tablet to the computer. Attention! Until this time, it must be disconnected from the PC.
The automatic installation of the CWM Recovery program will begin. Upon completion, a green circle will appear on the computer.
Disconnect the device from the PC.