Help with Crystalview EP-4, won't boot.

Discussion in 'Telechips TCC8902 Tablets' started by IamTed, May 15, 2011.

  1. IamTed

    IamTed Member

    May 15, 2011
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    Oshawa, Ontario
    Tablet / Device:
    Crystalview EP-4
    Hi everyone,
    A couple of months ago, I bought a Crystalview EP-4 tablet, to get me thru until I could afford an iPad. ;-)
    I rooted it to try and back it up, but forgot to try and get a copy of the ROM. Everything was working until a few days ago, it wouldn't boot up. If you turn it on, you get the Crystalview splash screen, then a Welcome splash screen and then it will get to the Android splash screen. At that point, I get an error that a process has stopped working. Regardless if I choose to wait or terminate the process, it will return to the Android screen. I have tried every button combo I can think of, but it won't get past the Android screen.
    Does anyone know if this unit is marketed under a different unit that I maybe able to get a ROM to flash to it? I have been serching the net and I haven't found something that is the same and I don't want to brick it! :eek:)

    Here are the spec's:

    • CrystalView E-Pad Touch 4GB 7-inch Touchscreen Android 2.1 Internet Tablet

    • General Features:
    • Black face, silver back panel
    • 7-inch TFT touch panel (resistive screen, not capasitive.)
    • 800 x 480 resolution
    • Google Android OS 2.1 pre-installed
    • Telechips TCC8902 720 MHz processor
    • 256 MB DDR2 RAM
    • 4 GB internal memory
    • microSD/SDHC card slot (128 MB to 32 GB)
    • USB 2.0 interface
    • Integrated IEEE 802.11b/g Wireless LAN
    • Built-in speaker and microphone
    • G-sensor function provides orientation sensing
    • Supports txt and pdf eBooks
    • Supports various audio/video formats
    • Supports various photo formats
    • Built-in rechargable lithium battery
    • Supports add-ons from Android Apps Store

    • Battery Specifications:
    • Lithium rechargable
    • 3400 mAh capacity
    • DC 5V @ 2A current
    • Physical Features:
    • Menu, Home, Back buttons on face
    • Volume + on side
    • Volume - on side
    • Microphone on front
    • Power/Sleep on side
    • DC 9V input on bottom
    • USB port on bottom
    • USB host port on bottom
    • Mini HDMI output
    • Card slot on bottom
      [*]3.5 mm headphone jack
    Here is a picture:
    $EP-4-4858-unit.jpg $EP-4-4858-soft.jpg
    $EP-4-4858-box.jpg $EP-4-4858-gal.jpg
  2. Mollo

    Mollo Member

    May 25, 2011
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    Ottawa ON Canada
    Tablet / Device:
    Galaxy Tab (Sprint)
    Hi Ted,
    I also have the same model. Have you successfully connected with ADB or have Terminal Emulation running? If so, we can try flashing some of my backup mtds.

    I'm still a noob with android, so I'm not sure which partition is giving you problems, but I'm guessing something went awry in the system partition (mtd2).

    as far as a ROM is concerned, I don't think anyone has created one targeted for our tablet, but so far it looks like its a generic Telechips build, so possibly another ROM would be compatible, but I didn't want to risk it until I'm sure I could recover back to my initial state. If you have some ideas with that, please share ;)
  3. cataclysm

    cataclysm Member

    Dec 31, 2011
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    I am able to ADB into it, but I do not have a any backup or rom to flash it with :-(
    It will not boot, but I can get into the bootloader mode and ADB to it.
    Any help would be greatly appreciated. Thanks

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