In order to install any original firmware, you need to do the following
- Copy the dload folder with all its contents to the root of the SD-card;
- Turn off the tablet;
- Insert the SD-card if it was removed;
- Hold down the Volume Up key and press and hold the Power button until the screen blinks. Press the Volume Up button until the installation process starts (a green robot appears and the progress bar fills up);
- At the end, when the corresponding suggestion appears, remove the SD card or hold down the Power button for 10 seconds.
Note: In some cases it is not necessary to press the buttons at all and the process will start automatically after powering on/restarting.
If the upgrade process does not start, you need to open the calculator, enter ()()2846579()= and then select Project Menu Act -> Upgrade ->SD Card upgrade.
Warning.
- Do not remove the card and do not press the power button until the process is finished and the corresponding prompt appears on the screen;
- If the power goes out during installation, repeat the flashing process;
- After copying the firmware to the sd-card, check if it is not damaged (copy the firmware files, disconnect and then connect the sd-card, check that the *.zip files in the firmware open without errors on your computer).
- Delete the firmware file from the SD card or rename the dload folder if you don’t want to accidentally update the tablet again!
What you need to know before updating your smartphone firmware:
- Only FAT32 format cards can be used. Preferably less than 4 GB;
- The firmware must be located on the SD card in the dload folder;
- Do not use the built-in memory of the device (except for devices with no Micro-SD slot);
- The file with the firmware must be named UPDATE.APP;
- During the firmware update the device will reboot several times — this is normal;
- If the firmware archive contains several folders (step1, step 2, etc.), flash all files in turn.
- During local firmware update all data on the internal memory of your smartphone will be deleted!
Warning! Everything you do with your device is done at your own risk! Nobody guarantees correct work of the device during and after installing third-party firmware and/or other actions not foreseen by the manufacturer!
Possible upgrade errors and how to fix them:
Q: When you turn on with the volume buttons pressed, the firmware process does not start.A: Try to rewrite the file with the firmware in the dload folder. If it still doesn’t start, try to run the update process through the settings menu.
Q: The device turned off and won’t turn on.A: Wait a few minutes. If it doesn’t turn on — turn it on yourself, the process should go on normally.
Q: When updating, the process hangs at some point and won’t go any further.A: Wait five to ten minutes. If the device still hangs, remove and insert the battery. For devices with a non-removable battery, you need to press and hold (for 15 seconds) the power button and both volume buttons.
How can I find out the current firmware version?
To find out the current software version, you need to go to Settings — About phone/tablet — System update. Version is three digits after the letter B. For example, build number V100R001C00B122 means that you have 122nd firmware version installed. Any firmware with digits higher than these are newer.
Airborne update (fota):
For this type of upgrade, it is desirable to use a high-speed network connection, such as Wi-Fi.
- To update using this method, go to Settings — About Phone — System Update and select Online Update.
- After that, the device will connect to the network and if the update will be available — the «Download» button. After clicking it the update files will be downloaded, then you will see
the Install button. If you press it, the device will reboot, install the update and turn on in normal mode. The update package files will be deleted
from the memory automatically.
https://www.youtube.com/watch?v=iVgN7KtgSmA
Please note, if the device has been upgraded (root), recovery different from the original, as well as system modification with the help of this upgrade, the update this way with a high degree of probability will end with an error and the phone after reboot will turn on in normal mode.
Updating the firmware of the tablet:
- Only FAT32 format cards can be used. Preferably less than 4 GB;
- The firmware must be on the SD card in the dload folder;
- Do not use the built-in memory of the device (except for those devices with a Micro-SD slot);
- The file with the firmware must be named update.zip;
- The device will reboot several times during the flashing — this is normal;
- If the firmware archive has several folders (step1, step 2, etc.), flash all files in turn.
