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[Onda v975m] rooting and custom rom guide

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Hi all, as a new android user I don't know much to do and everything looks complicated for me to do, so if anyone can please come up and put here some nice step by step guide how to do every thing, also with links it will be awesome and not only for me...

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There is a guide on the second page of this forum. There are also guides in the Read Me files of the custom roms and custom root zips. Besides, the best thing to do before you do ANYTHING is to read every page of the root and rom threads so you see what problems people have had and how it was fixed. I've read 450 page threads before rooting or romming my phones. This is probably the easiest device I've rommed and rooted.

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    • By Lukypie
      Since I didn't found any decent guide in english to properly factory reset the device I decided to make one, after a few tests I'm here to explain how to REALLY factory reset this tablet.

      Preface: I don't take responsibility for any bricked tablet, problems for following my guide
      Check your V. version of your tablet! Mine is V.3
      Requirements: You will need an OTG hub, keyboard, and a flash storage drive.

      WARNING: I wouldn't suggest you to mess with the partitions by deleting or resizing it with a thirdy party software, since I don't know if the stock firmware script doesn't like that, let me know if this method fixed your partitions to full factory state if you previously changed it! I'm curious.

      There also two separate partitions hidden from windows I found in Linux, I think they are releated to the DualOS function, just don't touch them! Don't touch/delete anything BIOS releated since you may probably brick the tablet
      Download links:
      Official ONDA ROM list: 
      http://www.onda.cn/Tablet_Supports.aspx?id=341 (The latest one are on the bottom of the page) To download faster without problems from baidu I suggest you using a good download manager, or a link exporter
      Re-Uploaded files made by me (Tested, mantained by me) : 
      W10 Processor, Chipset, Wifi/BT drivers: http://j.gs/710187/z8300-drivers-x64zip 
      Those drivers are needed if you are installing windows 10 manually, however, I won't explain how to do that since you will void your warranty and it isn't the purpose of theguide. W10 Touch drivers: http://j.gs/710187/touch-driver-v80-plus W10 July update (outdated):
      Part 1: http://j.gs/710187/w10p1jul
      Part 2: http://j.gs/710187/w10p2jul W10 Anniversary update:
      Part 1:http://j.gs/710187/win10anuppt1
      Part 2:http://j.gs/710187/winwin10anuppt2 Android: http://j.gs/710187/android-latest
      Re-Uploaded files made by others: https://cloud.mail.ru/public/MzuV/BwQAH5T7C (A bit outdated, not tested)
      Introduction: To factory reset the tablet you MUST flash Android before everything! That's because the android install will overwrite the current Windows partition. 
      Make sure your tablet is fully charged

      WARNING: Since this is a Dual OS tablet (Different from Dual Boot, check google) it has two BIOSes mode, because we're going to flash Android, we need to change the BIOS mode to Android, by simply booting it from the DualOS Menu, or by clicking the button from windows. More detailed steps to change from the bios down there.

      Android flashing: 
      USB preparation: We need to create an USB disk or a tf card with the android files you downloaded on it, and booting them from the tablet
      Download the Android zip you want to install Unzip it Plug an USB drive, you can also use a tf card with enough space Open your windows command prompt as adminstrator Type 'diskpart' Locate your USB drive by typing 'list disk' 'sel disk x' where x is the number of your drive 'clean' 'create partition primary' 'format fs=fat32 quick' Now close the prompt, and go renaiming the drive from windows explorer to "android" Now copy EVERYTHING to the disk
      Once you're done, you're ready to install android. Make sure you were on Android before shutting down, plug the otg hub to your tablet, plug your keyboard and the usb drive (or the tf card)  Power on the tablet, and press 'ESC' on your keyboard, you should have booted on the bios Go on "Boot Manager" Select your flash drive and click enter Wait, the script will restore everything, the tablet will reboot automatically
      If somewhere you got stuck at "flashing", try pressing enter from the keyboard. 
      If you got errors, you probably have problems with the storage. Now you're done! 

      Windows flashing:

      USB preparation: You will need an huge USB drive, minimum 16GB and you can't use a tf card there since windows doesn't detect them unless you have an USB adatper! We must firstly flash the win10PE_xxx_x64.iso to the usb.
      Once you downloaded the files and unzipped them, install ultraiso from the official site (or try the pirate way) but we must use the ultraiso executable included into the firmware Try to copy the executable on the UltraISO folder on C:\Program files, the program will be in chinese, don't worry about that Open the win10PE iso with Ultraiso Plug your usb drive and go there Be ready to flash the usb drive with those options Open the Windows disk management tool (You can by right clicking the windows bottom left logo and click 'Disk Management') If everything went smoothly you should be in this situation, you've created the EFI partition of the installer. Now, you just need to format the other partition (not the first one) with the label 'WINPE' and using an NTFS file system Like before, copy everything on that partition
      We're done with the usb. 

      Now like we did before, boot the disk you've just created. The installer will do everything automatically.
      Remember to change the bios into windows mode before doing that or you will get BSOD
      The installer should take place for 25-30 minutes depending on your drive.

      Now you're done. Your tablet is full factory resetted. If you are stuck on the ONDA logo, try to power down the tablet by pressing the power button for 8 seconds and booting windows from the bios

      You may need to install additional drivers by using the external keyboard and mouse
      I tried the older WIndows version and I didn't installed anything since everything was working correctly, I don't know if I did something wrong but trying the latest Windows firmware(Anniversary update), I had to install the touch drivers manually


      Changing the BIOS into Windows mode:
      If you are unable to access the Windows mode, here is another way to enable it through the BIOS.
      Press ESC when you power on the tablet Go to 'Setup Utility' Go to 'Boot configuration' GMIN: Android / Windows 8.X: Windows If you're going to install Windows, choose windows 8.X, press esc save, and reboot!
      If somewhere on the process you got stuck, press the power button for 8 seconds and re-try.

      This guide is a work in progress, help me to improve the guide!
    • By RobV
      I do not have a Dual OS device.
      The attachment was provided for the v919 3G Air Dual OS device.
      Scanning all device guides during English translation  ...
      This seems to be the most comprehensive guide.
      Google English translated Dual OS Android System installation guide
      Dual OS Android System Installation Guide.pdf
      20150825 6 pdf package -  various firmware tutorials Dual OS device FAQ etc.

      If efforts were helpful, say thanks by clicking on the UP Arrow near the bottom right side of this post
    • By RobV
      English Wintel Driver Installation Guide 10282014.docx
      Google English Translated Install Guide
      Win 8.1 Onda Driver Package
      Download Link:
      All available download files are located in the Downloads directory.
      “ Downloads “ button at the top of this page
      Available files are grouped by Device named category
      All files are listed in reverse chronological order ( newest upload file is listed first )
      Most device categories each have multiple pages of listed file names.
      File located in the Intel Download Directory
      Guide is same for all Onda “ Wintel “ devices
      Wintel device driver packages for specific devices are located in the respective device,
      ROM sub-forums. Driver packages include necessary drivers for the specific device.
      Please read and follow instruction for installing all drivers.
      WiFi & Bluetooth require manual installation. 
    • By RobV
      English Translated Win 8.1with Bing System Installation Guide ( 07 July 2014 )
    • By RobV
      Onda v975m ROM / ROOT simple upgrade guide
      Onda Official ROM - Onda install instructions
           * Custom ROM installation = follow instruction provided by Developer
      Battery 60% +
      NO external ( cable ) connection when attempting ROM upgrade / root
      ** Battery 80+ % - v3 device ( if using OTG method ) see below

      Download ( current / selected ) Onda Original ROM.zip file
      Un-compress file ( creates a folder that will contain needed files )
      Copy included files ( 5 files, generally ) to FAT32 formatted micro SD card

      All files ( NOT .txt file ) placed directly on micro SD card ( DO NOT place in a folder on mSD card )
      Ex: 1.09v1 ( 5 files )
      update.zip ( do not un-compress zip file )

      ** Note some ROM update versions contain 4 files, ex: 1.05v1

      MicroSD card need to be FAT 32 format. ( standard for new package card )
      I use a different ( 4 GB or 8 GB or 16 GB maximum size cards ) for Upgrading or Rooting.
      If re-using card, safer to format or delete old files prior to attempting upgrade / root process.

      Files can be copied using computer / device ( file manager ) to card
      You will need an internal card slot or external card device attached to computer.
      Card size adapters can be used if necessary, without problems

      Files can be copied to mSD ( Ext. ) card via connecting computer / v975m with supplied USB cable
      Select - share / transfer file connection type in the v975m ( bottom choice of 3 ) pop up.

      When copying on mSD card or USB stick using M.S. computer = safely remove media the Windows way
      Always use MS Safe To Remove / v975m “ Unmount “ features to protect mSD card data / USB device and data also future successful accessibility.
      With v975m power OFF
      Place card into v975m
      Hold Volume+ (up) rocker switch - located on tablet side - for 4-6 seconds
      Continue holding volume+ while you press and hold the Power button
      HOLD both … until you see the ( little ) green Android
      Release the power button first,
      Release the volume+ approx. 5 seconds later ( usually the little Android will single " flash / flicker " )
      momentary black screen ...
      The little Android will change position, size, color – ( earlier ROM = big white Android )
      note digital completion gauge under big Android
      ....... relax .... do not panic ............... honest ....... it will happen ...... ready ...... set ......
      System will re-boot upon completion ( 10 minutes total , or less )
      Initial ROM boot takes several minutes

      The device will boot with all Chinese characters
      Enter Settings – down left side, tap on “A” ( capital letter A ) Language settings
      Language settings - Right Side – Select first ( 1st ) item – scroll down list – select your language

      Similar instruction to ROOT v975m
      Download root file, un-compress, place files on mSD card
      Boot from mSD card following same button holds
      V975m will restart when completed.
      Edit: Completion time estimates
      Estimate 10 minutes ( less ) for brush   
      Estimate. less than 1 minute for Root alone 
      * NOTE continued root requires DISABLE Google play store auto-update feature, notifications is o.k.
      Onda official Root ( SU ) version does not perform root function if S.U. update is installed.
      ** 22 Apr 2014  v3 device 1.0.9v3 / 1.1.0v3 ROM and newer 
      RECOMMEND 80+ % battery when attempting mUSB / OTG connection following OTG update process.

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