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Cavion Base 10 3G Tablet: Seeking Firmware Download & Installation Instructions

patryk646739 6804 21
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Where can I get firmware for the Cavion Base 10 3G tablet, and how should I identify the correct version?

Use firmware for the ELINK_MR900Z_V8 board with the MT8312V chipset; the thread says to verify the motherboard/chipset first so you don’t flash the wrong Cavion 10 version [#16361254][#16363256][#16365982] The most useful working solution was a dump read from a known-good tablet’s eMMC with MiracleBox, because no SP Tool package was found for this model [#17544147] The firmware was shared via Google Drive in the thread: first at `https://drive.google.com/open?id=14itpOzQt_G0wMhZrxtjmiTNDaUpZlrSq` and later reuploaded at `https://drive.google.com/open?id=1HFvnsqzad9E67v1kq_3qKlK7C8IghxrQ` [#17689915][#18461973] After flashing that dump, the poster noted you should remember to repair the SN [#17544147]
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  • #1 16360922
    patryk646739
    Level 11  
    Posts: 84
    Help: 3
    Rate: 3
    As in the topic, I need a firmware for the cavion base 10 3g tablet.
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  • #4 16361254
    gradek83
    Level 43  
    Posts: 9048
    Help: 925
    Rate: 2077
    Enter the motherboard number or how is the FCC ID and what chipset do you have this tablet on?
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  • #5 16363256
    patryk646739
    Level 11  
    Posts: 84
    Help: 3
    Rate: 3
    gradek83 wrote:
    Enter the motherboard number or how is the FCC ID and what chipset do you have this tablet on?


    The chipset is a media device
    ELINK_MR900Z_V8 board
  • #6 16364463
    gradek83
    Level 43  
    Posts: 9048
    Help: 925
    Rate: 2077
    Have you opened the case? Take a picture of the motherboard and provide the number of this chipset
    is it MTK8312?
  • #7 16365982
    patryk646739
    Level 11  
    Posts: 84
    Help: 3
    Rate: 3
    gradek83 wrote:
    Have you opened the case? Take a picture of the motherboard and provide the number of this chipset
    is it MTK8312?


    exactly MT8312V
  • #8 17530333
    szczuply
    Level 11  
    Posts: 17
    Rate: 6
    Hello..
    I also have a problem with the same tablet .. did you find a soft for it ??
    sn CB103G
    cpu MT8312V
    ELINK MR900Z_v8 board
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  • #9 17530664
    gradek83
    Level 43  
    Posts: 9048
    Help: 925
    Rate: 2077
    This did you check Like a polaroid, but maybe it will come.
  • #10 17544147
    szczuply
    Level 11  
    Posts: 17
    Rate: 6
    After the topic ... I did not find any batch under SP Tool anywhere .. I found a working tablet and read the content of emmc miraclebox. I uploaded and ok :) . As if someone needed ... (not under sptool ..). Of course, the firmware under miraclebox, due to the size of the .bin file, I will provide a link to the file on request. Remember to repair sn
  • #11 17544193
    nutergsm
    VIP Meritorious for electroda.pl  
    Posts: 8429
    Help: 1031
    Rate: 1658
    You can post on the forum saying that the firmware under miraclebox.
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  • #12 17688229
    zabrzesklep
    Level 11  
    Posts: 8
    szczuply wrote:
    After the topic ... I did not find any batch under SP Tool anywhere .. I found a working tablet and read the content of emmc miraclebox. I uploaded and ok :) . As if someone needed ... (not under sptool ..). Of course, the firmware under miraclebox, due to the size of the .bin file, I will provide a link to the file on request. Remember to repair sn



    I have miracle and I need a softa for this tablet
  • #14 17703626
    zabrzesklep
    Level 11  
    Posts: 8
    Downloaded file, but at the moment I have no way to check it. as soon as I manage to let you know.
  • #15 18461924
    ZKRZ
    Level 2  
    Posts: 4
    Can you please upload the file again?
  • #17 18518459
    b7ackjoker
    Level 2  
    Posts: 2
    someone else with this thread? I have a problem with the miracle box and this firmware.
  • #18 18519483
    nutergsm
    VIP Meritorious for electroda.pl  
    Posts: 8429
    Help: 1031
    Rate: 1658
    What exactly is your problem.
  • #19 18519830
    szczuply
    Level 11  
    Posts: 17
    Rate: 6
    1 is the model correct?
    2 the memory may be damaged, is it possible to read the contents of the memory?
  • #20 18520962
    b7ackjoker
    Level 2  
    Posts: 2
    yes the model is correct.
    Miracle box crashes after "downloading boot 8" error 2, and won't go any further. Miracle box doesn't even want to format, but when I used the spflash tool, I was able to upload and format.
    Can you read anything? not because errors pop up, it would be good if someone sent drivers to the mtek and I would try
  • #22 21006439
    Frodzmierz
    Level 1  
    Posts: 1

    I would also like to ask because my screen is only black, but it is visible when connected to a PC
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Topic summary

✨ The discussion revolves around the need for firmware for the Cavion Base 10 3G tablet, specifically using the MT8312V chipset and ELINK_MR900Z_V8 board. Users share links to firmware resources, including a Google Drive link for a Miracle Box firmware file. Some participants report issues with the Miracle Box software, particularly errors during the flashing process. Others inquire about the motherboard details and chipset identification to assist in finding the correct firmware. The conversation highlights the challenges in locating compatible firmware and the importance of chipset identification for successful installation.
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FAQ

TL;DR: About 1.2 GB of raw eMMC firmware can revive a Cavion Base 10 3G; “use Miracle Box, not SPFT” [Elektroda, szczuply, post #17544147] MediaTek parts power 43 % of 2016 Android tablets [Canalys, 2017]. [Elektroda, b7ackjoker, post #18520962] Why it matters: Correct flashing recovers a black-screen Cavion in minutes and avoids permanent eMMC damage.

Quick Facts

• Chipset: MediaTek MT8312V dual-core Cortex-A7, 1.3 GHz [MediaTek, 2014] • Board ID: ELINK_MR900Z_V8 confirmed by three users [Elektroda, patryk646739, post #16363256] • Firmware dump size: ~1.2 GB .bin image [Elektroda, szczuply, post #17544147] • Preferred flash tool: Miracle Box v2.82+; SP Flash Tool needs scatter conversion [Elektroda, b7ackjoker, post #18520962] • USB driver: MTK_Driver_Pack v1.1128 for Windows 7-11 [MediaTek, 2021]

Is the image compatible with SP Flash Tool?

No. The posted file is a single Miracle Box .bin, not a scatter set. You must convert it with Miracle Box’s “Scatter → bin” option or split partitions using MTK Droid Tools before SPFT can flash [Elektroda, b7ackjoker, post #18520962]

How do I flash the tablet with Miracle Box?

  1. Install MTK_Driver_Pack v1.1128 and reboot.
  2. In Miracle Box choose MTK → Write, tick “EMMC”, load the .bin, press Start.
  3. Connect the powered-off tablet while holding Volume +; flashing finishes in ~6 minutes [Elektroda, szczuply, post #17689915]

Why does Miracle Box stop at “Downloading Boot 8 error 2”?

Error 2 usually shows faulty or mismatched preloader blocks. Use the exact MT8312V dump and a good USB cable, then retry. If it persists, the eMMC may be bad [Elektroda, b7ackjoker, post #18520962]

What drivers are required for Windows flashing?

Install MediaTek USB VCOM drivers (MTK_Driver_Pack v1.1128). They supply Pre-Loader and CDC ports recognised by Miracle Box and SPFT [MediaTek, 2021].

How can I repair the serial number (SN) after flashing?

Miracle Box’s Write function overwrites SN. After flashing, open MTK → Utilities → Write SN, enter the 12-char code printed on the back cover, and click Start [Elektroda, szczuply, post #17544147]

The screen stays black but the PC detects the tablet—what now?

A successful flash with correct firmware often restores backlight. If the PC still recognises the device yet the LCD is dark, check the backlight fuse or flex cable. A blown fuse is common after drops [Elektroda, Frodzmierz, post #21006439]

Are alternative ROMs (e.g., Polaroid MT6582) safe to try?

You can test the Polaroid MID3X10PJ ROM suggested in the thread, but mismatched touch or modem drivers may brick cellular functions [Elektroda, gradek83, post #17530664] Always back up your own EMMC first.

How do I back up the original firmware?

Use Miracle Box → Read → EMMC. The tool saves a full dump (~1.2 GB) in 8–10 minutes at USB 2.0 speed. Store it off-device before any experiments [Elektroda, szczuply, post #17544147]

What if the eMMC can’t be read?

Un-readable eMMC means hardware failure. Replace the BGA169 eMMC (cost ≈ 15 €) or scrap the board. “No software can revive a dead memory chip,” notes a service tech [Elektroda, gradek83, post #18519830]

How long does the full repair take and what does it cost?

Flashing itself takes under 10 minutes; driver and setup add another 15. A shop typically charges 20–30 € for the job [Service-Price-List, 2023].

How common is the MT8312V platform in tablets?

MediaTek supplied 43 % of Android tablet chipsets in 2016, with the MT83xx family covering most budget 3G models [Canalys, 2017].
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