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About dazmatic

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  1. dazmatic

    Bootloader unlocking

    I've tried many combinations to enter bios without any luck. Not sure what else to do.
  2. dazmatic

    Bootloader unlocking

    Yeah, got windows 10 to boot as far as the 64/32 bit selection screen, selecting 64bit begins the driver loads but then fails to blue screen with something about acpi bios. acpi bios error
  3. dazmatic

    Bootloader unlocking

    So I can boot into ubuntu grub and try to boot windows loader from there using "chainloader (hd0,msdos1)/efi/boot/bootia32.efi" but it just comes up with an error message and then loads into the bootloader EFI menu so it looks like it can't detect the windows efi to boot from it but it can find the linux one fine?
  4. dazmatic

    Bootloader unlocking

    Yeah no luck with uefi but ubuntu livecd on usb works fine. really want to get android image working but ubuntu or even windows would be great
  5. dazmatic

    Bootloader unlocking

    So I've now got the modified flash on here. I'm in unknown territory now, how do I get into uefi?
  6. dazmatic

    Bootloader unlocking

    Thats probably why, not erasing before writing. ill try again.
  7. dazmatic

    Bootloader unlocking

    My ch341 arrived and ive read the chip and saved the original. Dont seem to be able to write your .bin though though. Have erased but cant write?
  8. dazmatic

    Bootloader unlocking

    I've just ordered a CH341. Should be here in a few days. I don't have the 1.8V adapter but I've got a 1.8V power supply and logic converter. which appears to work fine so I'll know more when it arrives.7 Also ordered some 1.8V adapters, I run a business on ebay UK (user booskibits) and the 1.8V adapters are too expensive so I've bought small quantity (10) of adapters and sop8 sockets and also bought 10x spi flash chips as spares to test. I can't find wson flash but got sop8 which should fit on board the same.
  9. dazmatic

    Bootloader unlocking

    Thanks so much for your helpful insight. I'm not having much luck reading off the flash chip with my FT2232 adapter. I've tested software in windows and ubuntu but the flash doesn't respond so I may have to get a programmer like yours, the CH341 and 1.8V adapter. At least then it's purpose built for doing this job! All I want to do is to be able to unlock the bootloader and flash a fresh android image to the emmc
  10. dazmatic

    Bootloader unlocking

    Have you got the original flash dump from before you edited it? I'm in the process of setting up an ft2232 to 1.8v spi adapter to read off a couple of dead boards. I know 1 flash chip works as it'll boot into android so I hope to get a working image off that and I've got 1 flash chip I think is dead which I'm going to try and read first. I have no problems soldering and my soldering skills are pretty good. I've got some bga stencils on order as I'd like to see if I can read off the emmc chip and get the partition details, looks like the Samsung emmc flash that Tesco used in the Hudl 2 is known to be problematic as I believe certain Sony phones have the same boot loop/crappy emmc issue. Would be great to get a working android image zip to flash to an emmc to try on the boards.
  11. dazmatic

    Hudl 2 stock firmware needed for 3E recovery

    any chance you can re-upload? I know it's 3 years later but what the hell!
  12. dazmatic

    Dead hudl 2 tries to boot but fails

    So, seeing as I'm not likely going to get a response here which is disappointing, I figure I might as well respond to myself and use this as a log of my ventures. To date, what I've done is replaced the nand flash on the board with the nand flash from the definitely faulty unit and suddenly I can now charge with light and charge screen, I can get into recovery and boot as far as the hudl* screen before it reboots so at least it's doing something more than it was before. It looks like its running up to the update below as I've tried reflashing the update over ADB to no avail. hudl2_ota_rel.android-build.20150803.092218_to_rel.android-build.20150917.142239.zip So presently, it's stuck in a bootloop with no indication of what's going wrong and my searches have come up trumps only suggesting a reset which I've done several times now.
  13. Hi all, I've been lurking here for a little while in efforts to try and fix my fathers failed Hudl 2. His tablet doesn't charge, no red light, no current draw from USB and I've confirmed that the charge port is fine and that battery power is reaching the board. The board was corroded and it looks like a series of power supply chips, most notably the DA6021 has failed. I've gotten hold of another dead Hudl 2 but this one shows more life. No red light but it does draw power from the USB port and it has charged the battery so I know at least the battery charging circuits are fine. Equally, I do know that the device tries to boot as the PMIC fires up and presents 3.3V and 1.8V for other circuits on the board but it only appears for about 5-10 seconds and then turns off again. Is there any kind of serial terminal on the board with access to see what the board is trying to do during this startup sequence?

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