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OMAP4430 No bootloader on emmc

bianco oreo
Prodigy 30 points

Hi, I have an android device that uses omap as processor and chipset, by mistake I deleted all the emmc and now it no longer has the bootloader. How do I flash the bootloader? Can the device bootloader be read from the SD card?

  • 0
    TI__Expert 6176 points

    0. What is the omap4 based platform used?is that using uboot or some other bootloader?

    1. omap4 is no longer supported so cannot help in detail on this one.

    2. if you are using omap4 soc on a non TI EVM ( may be some custom chipset) then you need to check with the manufacturer on providing the bootloader images and unbricking/recovery procedure.

    3. on development platforms boot order is generally SD first and then eMMC. So if you have the right bootloader images on SD card and connect to your EVM (as long as the boot order is kept the same way) you should be able to boot till boot prompt and then reflash rest of the android images.

  • 0 in reply to Praneeth Bajjuri
    Prodigy 30 points

    0) I's x-loader and u-boot (xloader it's MLO)

    1) Please help I need it, I have contacted various forums where we talk about android modding and I have not found answers

    2) The I don't know anything about the chipset but I know that as a soc it has omap and as a processor it has a cortex but the manufacturer is LG and the device is LG Optimus L9 and I have pictures of x-loader and uboot but there are no official recovery procedures. (if I connect with USB the device is recognized as OMAP4430)

    3) I have the bootloader images but I don't know how to do it but if there was a guide I can follow it because I know a little about IT

    Praneeth Bajjuri said:

    0. What is the omap4 based platform used?is that using uboot or some other bootloader?

    1. omap4 is no longer supported so cannot help in detail on this one.

    2. if you are using omap4 soc on a non TI EVM ( may be some custom chipset) then you need to check with the manufacturer on providing the bootloader images and unbricking/recovery procedure.

    3. on development platforms boot order is generally SD first and then eMMC. So if you have the right bootloader images on SD card and connect to your EVM (as long as the boot order is kept the same way) you should be able to boot till boot prompt and then reflash rest of the android images.

  • 0
    Prodigy 30 points

    P.S:The fundamental thing is to try to flash the bootloader or boot the bootloader via SD (something that somehow makes me start the bootloader) because this device has a Download Mode so that I can re flash all the images and start Android normally

  • 0 in reply to bianco oreo
    TI__Expert 6176 points

    Based on your reply, it looks like the device doesnt have a non standard bootloader.

    This still doesnt change the answer though, there is no way a soc manufacturer can help here. 

    For information purpose: the dev/product cycle is is.. 

    1. soc manufacture(ex: omap) provides a reference implementation ensure the device periperals and features are checked out with a available EVM(ex: omap4 panda board). The device state for standard public release is "unlocked"

    2. The vendor/oem (Ex: LG) can keep the same changes or strip out features or fixes or add more features and optimizations as needed for a specific product and release device. The device state for product launch is usually "locked"

    3. A locked device cannot be unlocked and flash with some other custom bootloader images, unless vendor specified sequence of "unbricking" / recovery is followed.

    --

    In summary, you have to get the help from vendor/LG for the right recovery sequence to rescue your platform.