[Android Q&A, Help & Troubleshooting] joshua704:
This might be a long situp to write this, but i've experienced that a lot of the excelvan users do not really know, where to get support for their device. I've bought this device because the price was low. And so is the quality. It is assembled with a JTY mt10 smarphone mainboard, connected to a 10,1'' touch display.

I've bricked the device and getting help to retrieve it back to life was a pain. No support from excelvan, so I've experimented with it, to find the best possible solutions. In order to help you save time on rechearching this issue, I'll now post this, hoping it helps you getting the tablet back to life and running.

Notice: this is for excelvan mt 10 tablet only. I have no idea, if this works for any other product, so don't ask me, just look around the forum to find help. If the real hardware is bricked, this won't work either, your device should be repaired by qualified service persons to proceed with this.

1 setup your pc to get started.

I've installed the following software on my windows 10 desktop pc:

- The MTK Droid tools, links are supplied by this forum

- The MTK Sp Flash tool, you'll find links for that in this forum or get it from mediatek

- Philz recovery, use google to find it

- Kingo Root, you'll find it at the kingo root home page

- The Mediatek VCOM USB Drivers for Windows 10 (As for my PC) at Mediatek.

- The stock rom for excelvan mt10 tablet, you'll find it on needrom, download for registered users only

Installation of the software on your pc is straight forward, just follow the on-screen installation instructions and you'll be good to go.

Probably your device is bricked already, so no further action needs to be taken on your device.

The first thing you'll have to do is to see, if your drivers can connect to the device. To achieve this, follow the procedure below.

1. After setting up the drivers package, connect the device to your PC, using original USB cable. There are a lot of cables around there, but please use the original provided cable, as it is not sure, that other cables have all pins connected for this, so do yourself a favour...

2 Go to the device manager in your pc and look for your phone's name or the mediatek VCOM driver to run. If the device is booted up, you'll find them, if your device is bricked, you'll have to initiate the META mode of the 6572, to establish the connection. Luckily, the device has a reset button, so if it is bricked, you'll need to connect it to your PC, open up the device manager and press the reset button. (I've opened the device the very first time, to unsolder the battery leads, but I didn't know then, that there was a reset button...) The reset button is located between the micro USB and the Headset connectors on the right upper side of the device, the little hole there, use an insulated papar clamp to press it. In the device manager, you will see the driver popping up and after a short time, shut down. This is normal operation, sometimes it starts reconnecting over and over again, but that's allright.

3. First, you should try to get the preloader back on the system. This is very useful, many devices are bricked by shooting off the preloader. Open up SP Flash Tool, load the scatter file from the unzipped stock rom image for the device. You'll see the used blocks and partitions used by the software in the right pane of the flashtools program. Uncheck all blocks first, then click the checkbox at the 'Preloader', the first entry in the right pane..

4. Now connect your device with the USB cable to the pc. Yes, this comes first. Now press the 'Download' button, the dropdown bar should tell you 'Download Only'. If not, please select this from the dropdown and press download. Now the program waits for the connection, so press the reset button of your device. If all is setup correctly, your device will connect and download will start. First, you'll see a red bar running at the bottom part of the programs's screen, shortly followed by a yellow bar, showing progress of the download. If the download was successfull, you'll be notified accordingly. Disconnect your device and wait 10 seconds, then reconnect it to the pc. If your download was successfull, your phone will be recognised and stay connected, please look in your device manager on your pc, to see connection startup. You'll see the battery charging icon on your device, so it shows, that it is recovered back into it's life.

5. Now it comes to flash the rest of the firmware, so go back to SP Flash Tools, select the scatter file again, check all blocks EXCEPT the preloader and flash it to the device the same way, you've flashed the preloader. Now that you've selected more blocks to flash, you'll see that this takes much more time to download. So please be patient, do not tamper with anything, go ahead, get yourself a coffee or a beer and relax. If everything is okay, flashtools will inform you if the download of the firmware is successfull. If yes, you are good to go, for the first startup of your device.

Disconnect the device from your pc and power it on. If all is right, it will boot up android and you're ready to install and customize it for you.

But sometimes things just don't work this way, what can you do ?

Well, in my case, I've shot my preloader at the first try to flash the stock rom. Yes, I did not obey the rule that I should not tamper with this preloader, so it was checked also. This was a big mistake, after unsuccessfull download, the device did not react any more. The second time (I've bricked it again, because I would like to know, how to restore a bricked file system). So I've formatted all partitions, reinstalled everything and it worked fine. You can do this with the SP Flash Tools also.

I was tired of the 'Factory Recovery Mode', a standard piece of software, which seems to be some sort of rudimentary, so I'd like to install a CWM recovery for that. It would let me install a ZIP Update from the SD card, so it seems more usefull than that rudimentary factory recovery, but how to establish that ?

Searched the web for a long time. Used MTK Droid Tools for that, but this didn't work on the device. It could not create the recovery because of two errors:

- No found kernel GZ

- No found split boot image.

The search for the solution to these both errors resulted in just one thing: There seems not to be a solution for that.

If I can find the time, I will try to solve this but in this moment....

In this case, you'll have just one option left, install Philz Recovery. It brings touch capab8illity also, so it just seems ideal to have that. Besides the fact, that you can use the touch interface, the software brings a ton of usefull options with it, so it is the best choise for your device. I've extracted the ZIP file and dropped all items on my desktop to have a quick access to it.

This can only be done on a routed device, so you'll need to root it before continuing. Not rooting the tablet will result in hanging up the recovery program, so no use. I've rooted the device using kingo root. It runs on my pc and the only things installed on my device are the kingo root super user module and the kingo link module, for connectivity. The latter installations are done by kingo root and your PC, so you'll not have to do this yourself.

Rooting the device will take some time, so be patient. My device is connected as a JTY MT 10 Smartphone, when kingo root recognises it. It can take up to an hour to root. Probably there are other rooting programs out there, which could do the same, but I've tested a few of them, nothing else worked properly. I'll be using kingo root for this device in the future. Be aware, that the rooting with kingo root is session dependable, so after rebooting your device, you'll have to root it again.

You may now run the setup program for philz recovery. It can take more times starting up the program to successfully install the recovery on your device. I had to start the program 5 times, to get it installed completely, so if it is not working the first time, don't panic and start it over again.

The standard recovery image from the stock rom is not the same size as the recovery from philz. The program warns you for getting IMEI lost, so if you don't want this to happen, quit installation here. If you know what you do AND you have a backup of IMEI (NVRAM folders of the device) just go ahead. If installation of the recovery was successfull, you'll be notified by the program running on your pc. Now you can boot your device into recovery, by hitting the apropriate button presented by philz recovery setup program on your pc. To do this on the device itselft, power it off, wait 20 seconds, press the VOL + button and hold this while then pressing the power button. Hold these untill your screen lights up and select 'Recovery' from the menu, use VOL + for selecting, use VOL - to confirm. If the program starts, you'll notice, that it is 'Upside-Down'. That should not bother you, for this little inconvenience you get paid with a superb recovery.

In the next section of this post, I'll cover the backup and restore issues, using MTK Droid Tools, explain how to reinstall an IMEI, how to install a new MAC adress on the device. So stay tuned...

Joshi