Can not boot my tablet - Android Q&A, Help & Troubleshooting

I have a QDYS MIRA that as I was watching a film in the middle it went black the screen and I have not got it working since then I have factory reset screen is only getting to kit Kat 4.4 had a go with Windows 10 and rockchip but the PC says the best drivers are loaded the same with Adb this is the first time for me to do this at 62 years old new to computers can some one help God bless you

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Archos 7HTV2 super bricked

Need help, I have the Archos & Home Tablet V2 ( out of warranty) I bought it second hand. I was messing about with it and tried to flash an update using the normal method of placing it in the root of the SDcard when during the flashing, it shut done, I didn't realise the power cable had come out and not enough battery power (big noob mistake). I now have a hard bricked tablet which won't go past the test when using the RKandroid tool for the RK281x chips. I contacted Archos but they said I had to send it back to be replaced. Not going to happen since i ONLY PAID £45 FOR IT and they wanted to charge me well over that to replace an out of warranty device. Other than picking an open window for it, does anyone know of any way to fix it. It seems that the boot/recovery part of the nand is corrupt so when I try to place it into recovery by putting the power switch to lock position and then resetting it I get a black screen, it DOES install on my PC's, tried win7 x64 and a laptop which has win 98 x32. The only drivers it accepts are the rockchip rk281x drivers though.

[Q] New Nexus 7, unlocked but not yet rooted, stuck with red triangle.

Good evening,
I have been trying to follow the tutorial here
[REDACTED - I'm too new to post links. It's a how-to on Linux Journal on dual booting Android and Ubuntu Touch by Bill Chiders.]
to take my Nexus 7 (2013) from it's just unboxed state to dual booting Android and Ubuntu Touch. I succeeded in unlocking the tablet. I am using Ubuntu 13.10 on my laptop and installed the whole Android SDK and everything (even though I already had Eclipse installed for learning Java). I've reached two sticking points.
First, the part where I'm told to copy the three files (the MultiROM zip, the kernel zip, and recovery image) to the root directory of the tablet: it's not clear how to do that. The files wouldn't copy except to the internal storage folder. Or is that the root directory?
Second, I am unable to boot to recovery. The
Code:
adb reboot recovery
command only brings up the android on his back with the red triangle containing an exclamation mark. That screen lasts a minute or so and then the device reboots normally on its own. I have tried several power and volume button combinations to get a different result at this point, but to no avail.
If anyone can advise me, I would be quite thankful. I did a search of the fora before this post, which gave me a few things to try, but no luck.
I'm keen to get this thing in order before my case comes in the mail! :laugh:
If it helps:
The Nexus 7 is the 16g wifi 2013 model.
I also have access to an OS X Mavericks machine and an OS X 10.6 Tiger machine. I also have a Windows XP Virtual Machine set up on my Ubuntu laptop, which I tried for a while to use the wug's nexus tool kit in, but I gave up on that when the VM wouldn't see the tablet. I mean, that is so not what virtualization is for; I should be able to do it in Linux. Lastly, if all else fails, I do have a Windows 7 machine at work.
Honestly, though, I'm hoping to do this via the terminal and learn things along the way.

[GUIDE][Cube i6 Air (3G or Wifi)] How to update your EFI BIOS to latest version

Welcome to my tutorial !
You can find others tutorials related to the Cube i6 :
Install windows 10
Install Android 4.4.4 (Stock & RemixOS)
I received the magnificent AllDoCube i6 Air 3G last week, and i've been struggling since to get updates,
firmware flashing and all of that working, I searched the whole web and the drivers/Firmwares are nowhere to find,
but on some chinese proxy-needed sites sometimes, or baidu which is a pain in the a** to download from.
So I decided to share the ways to update this tablet at all costs (heh, no worries, -NORMALLY- it wont brick)
Disclamer: This process might contain ROM hacking, this is for advanced users.
THIS TUTORIAL HAS BEEN TESTED ON i632GB1537XXXXXXX MODEL, AND WORKS ON IT,
WHEREAS IT HAS BEEN REPORTED THAT i632GB1522XXXXXXX MODEL BRICKED UPON DOING IT,
SO PLASE DO IT CAREFULLY, IF THE INSTALL VERSION IS 202 YOU SHOULD THINK ABOUT IT BEFORE TRIYING AS IT COULD BRICK!
Software included may be subject to copyright.
Flash your device at your own risk. Developer is not responsible for what you do on your device.
What you need:
Cube i6 Air (3G or Wifi)
Flash Drive (256Mo +)
OTG cable
USB Hub (3 Ports recommended)
EFI BIOS Firmware
DOWNLOAD THE FIRMWARE BEFORE STARTING SO EVERYTHING IS AVAILABLE WHEN YOU DO IT
https://drive.google.com/folderview?id=0B8YPw4HjmqNCZktOZy1OTEN2ZVE&usp=sharing
Get on the drive, go to your device folder, select the wanted version inside BIOS folder
What to do :
1.) Start by plugging the usb drive into your computer, and format it to FAT32 using any formatting tool
2.) Now you need to uncompress the downloaded firmware :
you will find a "Firmware_X.X.X" folder inside, take all of its content, and extract it to your freshly formatted drive.
here's what looks like the root of your usb:
3.) Your USB Drive is ready, now just plug the OTG cable to your tablet, plug your HUB onto that OTG
and fill it with your keyboard and the USB Drive just created.
4.) Press power button until you see the screen backlight, when you see it repeatidely smash "Esc" key on the connected keyboard.
You will see the bios 6 square configuration screen.
Hit "Boot Manager" and select your USB in the list.
5.) The tablet should now boot from your USB, booting to a UEFI Shell. Depending on your device, it might be either 64 or IA32.
Now you just let startup.nsh script do the firmware flashing init, it should drive you to a flashing BIOS screen.
6.) Follow instructions on screen and let the tool flash your BIOS automatically.
Once done, the tablet will shut down.
Congrats! You successfully updated your BIOS !
It is my first tutorial, i will post some photos of steps in the future so come back, the guide will be better soon !
Regards,
Max.
Hi,
I have bought the Cube i6 Air 3G a week ago and i'm still waiting for it to arrive.
Have you update the win 8.1 to win 10?
Does everything works correctly?
Regards
re
Hi, I successfully updated the BIOS as of now,
I changed the bootloader animation to nexus one on Cube ROM.
I also manager to boot on Android x86 but it had too many drivers issues.
Still, 4.4.4 stock cube is working and i reflashed to a new partition scheme of 9Go
and i'm currently testing some win10 pen drives for install, will keep you updated.
Édit: oh you were asking about thé tablet? Weil jack has default, charging takes hours, glass is plastic, firmware is pain but hell this is a goodamn good tablet for its price !
regards,
Max
stalker2106 said:
i'm currently testing some win10 pen drives for install, will keep you updated.
Click to expand...
Click to collapse
I achieved installing Win10 x32 Pro on Cube i6 Through hacking WinPE installation environnement, but now i'm struggling finding the drivers. touchscreen, battery and vital things like hd graphics are not working as of now. Will post a tutorial on how to install Win10 in given time when i'll get out of this mess!
My tablet has arrived yesterday.
From what the little i've used it, it has good performance especially in android.
A lot faster compared to my last android tablet (Cube U39GT).
Something i didn't like was the size of the icons and text in android, my next step is to root and change the dpi.
Regarding windows 10, i found in a chinese tablets blog with win 8 and 10 drivers.
I haven't tested it, but as soon as i find it again, i will let you know where to download them from.
You haven't tried the normal win 10 upgrade? From the microsoft icon?
gtbr said:
My tablet has arrived yesterday.
From what the little i've used it, it has good performance especially in android.
A lot faster compared to my last android tablet (Cube U39GT).
Something i didn't like was the size of the icons and text in android, my next step is to root and change the dpi.
Regarding windows 10, i found in a chinese tablets blog with win 8 and 10 drivers.
I haven't tested it, but as soon as i find it again, i will let you know where to download them from.
You haven't tried the normal win 10 upgrade? From the microsoft icon?
Click to expand...
Click to collapse
I did not try anything as i like "stock" versions of my windows, but tonight i got it working all the way !
My cube i6 is running perfectly windows 10 and oh my god what a paradise it is ! The tablet experience got way better onto that version.
Can you try to update from the icon you are talking about ? i'd be curious if it works. anyway, i'm currently writing+uploading for the win10
tutorial for this tablet, so you'll be able to flash it late tonight, or tomorrow.
EDIT: The dpi is correct in android, only the status bar icons and some other are not in correct dpi but that is KitKat issue I guess. still interested in resolving that though. I'm currently hacking android lollipop ROM also, i'll keep you tuned on that. For rooting, i used KingRoot, it worked, but after a reboot, it tells me "root" is wrecked, so i guess there is some investigation to do there, but I was mainly focused on getting windows 10 ENGLISH STOCK version running to share it with you guys.
EDIT2: Still uploading, but tutorial is here: http://forum.xda-developers.com/android/help/guide-how-to-install-windows-10-t3252042 and it should work on any Z37xx powered device. Enjoy !
Hello,
I'm using this tablet from 2 days now. great !
But, i got wifi problem after sleep : wifi chip cut and never found network anymore.
has to reboot, and all goes right.
same in win and android.
Did you hear about this ? many poeple complain about this.
Any trick or advice ? Is this bios correct this ? Is your bios work on i6 3g dual-boot ? (there is 2 bios for dual boot ?...)
Thanks !
Hi,
I've also have the same problem with the wifi.
I usualy disconnect the wifi and reconnect it, but sometimes it doesnt work and have to reboot the tablet.
I've not noticed it in windows but maybe it's because i'm using the tablet a lot more in android.
I've tryed to update to win 10 using the microsoft icon, but i got an error and was unable to complete the upgrade.
gtbr said:
Hi,
I've also have the same problem with the wifi.
I usualy disconnect the wifi and reconnect it, but sometimes it doesnt work and have to reboot the tablet.
I've not noticed it in windows but maybe it's because i'm using the tablet a lot more in android.
I've tryed to update to win 10 using the microsoft icon, but i got an error and was unable to complete the upgrade.
Click to expand...
Click to collapse
Hello, i have such a tablet for now about 6 Months and it is awesome so far (i often use win8.1).
My Tablet has also DUAL Boot with Android 4 and win 8.1 Bing.
I tried to upgrade to win10 but i also got a message that the partition can not be resized by windows. So i cant upgrade to win 10 with the normal tool from microsoft.
Is there any Solution yet to get this to work?
Anyway, i tried to boot from usb (win8.1 / ubuntu / gparted) but it is not working at all. When i try to boot true windows Advanced Boot Options, the BIOS says that there is no USB device.
When i use the EFI Shell to mount the USB Stick i can see that the BIOS has recognized the USB Stick.
I think that is all very strange, but i will try to update the BIOS soon. The serialnumber is not the same as from @stalker2106 but i will try it.
I hope there is a way to get win 10 working, but Ubuntu would be even better for performance.
Greetings from Germany.
tysonpower said:
Hello, i have such a tablet for now about 6 Months and it is awesome so far (i often use win8.1).
My Tablet has also DUAL Boot with Android 4 and win 8.1 Bing.
I tried to upgrade to win10 but i also got a message that the partition can not be resized by windows. So i cant upgrade to win 10 with the normal tool from microsoft.
Is there any Solution yet to get this to work?
Anyway, i tried to boot from usb (win8.1 / ubuntu / gparted) but it is not working at all. When i try to boot true windows Advanced Boot Options, the BIOS says that there is no USB device.
When i use the EFI Shell to mount the USB Stick i can see that the BIOS has recognized the USB Stick.
I think that is all very strange, but i will try to update the BIOS soon. The serialnumber is not the same as from @stalker2106 but i will try it.
I hope there is a way to get win 10 working, but Ubuntu would be even better for performance.
Greetings from Germany.
Click to expand...
Click to collapse
Check windows 10 Post, there is no need to update BIOS to fix this error, your USB has to be in GPT partition style, check answer on the other thread
But usually the bios update should work, as it did on my tablet. But why bother taking risk if you can get it working without it
Hi,
I have sucessfully updated to win10
I have bios 203 in my cube and serial i632gb1510xxxxxxxxxxx, does anybody have tried to update to 206 on such setup ?
What are the chances that I will brick my device ?
I have downloaded latest Cube i6 roms from cube site (may 2015) . There are two bios-es which have to be installed in chronological order.
Shall I do it first, and then try to update to 206 ?
Edit: I was not patient and tried it on my own.I have successfully updated bios and tablet has started to both android and windows
I will perform some functional tests afterwards.
Actual steps :
I have first downgraded bios to 201(provided here )
Flashed bios1 from link provided
Flashed bios2 from link provided
Flashed bios 206 from guide in first post
Edit2:
I have tested basic functionalities like : Gyro-sensors, WIFI, GPS, 3G network and yet everything works like charm.
Maybe a placebo, however I have the feel that android runs like two times faster
I do suggest to update the windows, however I take no responsibility if you will brick your device. Even if the setup is like mine, neither if it differs
Regards
Why do you first downgrade to 201?
What do you mean with bios1 and bios2?
Many thanks and question
Hello Stalker,
I am new here and i want to
thank you for the instructions!
I bought a cube i6 from china.
It is the 'i6 air remix',
So it should have only Android on it.
When it arrived. it didn't function.
The only think that happens is booting to theEFI-shell.
I could switch between Android and Windows in the boot settings.
But Android did not boot.
I have updated the bios with your instructions
now firmware 2.0.6 is installed.
But still i can not boot Android.
I found a few flash tools and android for the cube i6 .
But i don’t know what is the right version flash tool I have to use.
Maybe you have advise or the right android and flash tool in your google drive download area?
Kind regards and many thanks in advance.
jan-netherlands said:
Hello Stalker,
I am new here and i want to
thank you for the instructions!
I bought a cube i6 from china.
It is the 'i6 air remix',
So it should have only Android on it.
When it arrived. it didn't function.
The only think that happens is booting to theEFI-shell.
I could switch between Android and Windows in the boot settings.
But Android did not boot.
I have updated the bios with your instructions
now firmware 2.0.6 is installed.
But still i can not boot Android.
I found a few flash tools and android for the cube i6 .
But i don’t know what is the right version flash tool I have to use.
Maybe you have advise or the right android and flash tool in your google drive download area?
Kind regards and many thanks in advance.
Click to expand...
Click to collapse
The truth is, the 206 BIOS provided is hacked off i6 remix repository from cube, so i guess there is no big deal flashing it on your device as it works on regular i6.
Moreover, you can use any version of the flash tool as long as you flash a correct rom for your device, which i would suggest to download from official cube repository or geekbuying or so.
Android Geecbuying
Hello Stalker,
Ok. Thank you!
I will try Geecbuying.
Hopefully the windows drivers will function.
There isn't a way to flash from USB I suppose?
Greetings
Hi, well, actually, you should flash over USB with à windows computer. MFT by Intel is recommended. I shall make some tutorial about Android installation and partition resizing.
flash and resize partitions
That is super. When you want to do so.
I was indeed wondering or there would be one android partition on the tablet or two partitions (one for android, one for windows).
I also questioned myself how to see that there are partitions.
In earlier times when I was working with a pc, i use F-disk or partition-magic for this kind of work.
But on the tablet I do not have a clue...
So if you could make me wiser on this, I would be very thankful.
Maybe you could boot on some gparted liveusb? Or inside efi shell some commands could help
bluefish007 said:
Why do you first downgrade to 201?
What do you mean with bios1 and bios2?
Click to expand...
Click to collapse
no particular reason, I just wanted to know, which version of bios is in the latest firmware provided by geekbuying
Additional condition in my decision mechanism was that my serial did not match mentioned ones in w10 thread from stalker, so somehow I have used sleepy sloopy logic and tried to minimalize the risk (I know it have no rational reason and logic behind it at all)
Therefore, I tried the ones from geekbuying repository, to be sure to have latest provided from "official source".
greetings
thermoska said:
no particular reason, I just wanted to know, which version of bios is in the latest firmware provided by geekbuying
Additional condition in my decision mechanism was that my serial did not match mentioned ones in w10 thread from stalker, so somehow I have used sleepy sloopy logic and tried to minimalize the risk (I know it have no rational reason and logic behind it at all)
Therefore, I tried the ones from geekbuying repository, to be sure to have latest provided from "official source".
greetings
Click to expand...
Click to collapse
Ok thanks for the answer! So i can upgrade from 203 at 206 at one part or what do you think?

How to unbrick Nextbook 8 NX785QC8G

so I was installing shaunMTs rom from freaktab on my daughters tablet and when I did the flash instead of rebooting back into recovery to flash rom it just turned off I was tolod by shaunMT that using rk tools I might bring it back problem is I cant get any drivers that will work with the tablet in current state the pc recognices it as an android but that's it I tried using rkandroid 1.37,Rockchip_Batch_Tool_v1.6 , RK3xxx_firmware_tools_5.99.07.00, hell not even the SP_Flash_Tool_v5.1420 from the nextbook page recognizes it or theres no way to know I think so what can I do or what should I do laptop is running windows 10 by the way idk if it matters thanks for any help its greatly appreciated as I keep getting asked by my daughter every day if the tablet its fixed thanks again

Brick'ed E5 FHD

Hello all!
Today i was updating my room and... (fml) pc rebooted or crashed. Anyhow I'm stuck with a pretty brick. Phone is BQ Aquaris E5 FHD (although I',m open to try any other program/driver/rom that can revive it)
I tried flashing it again but it doesn't do anything. Phone get recognized by windows though (as I connect, it install the Mediatek driver) but the Smart Phone Flash Tool cant start any process. Any ideas that can bring the phone back? I have limited knowledge on phones but not on computers, if there's any linux distribution, SDK android, anything... make me know and I'lll try.
I've tried pressing buttons in all forms/variations. I think i need a program that can hard flash the phone.
Thanks in advance!
Riskke
opens the phone disconnects the battery, reconnects it, flashes the firmware, and then installs the rom.

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