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<moneymaker>
Hello guys, does anybody knows, how to flash uboot through twrp or adb?
<beeble>
just asking the same question again and again without reading responses will not get you anywhere
<moneymaker>
ha! :D yeah but nobody responses, so i thought nobody read it
<moneymaker>
ah yeah, i see your answer
<moneymaker>
i have root shell with adb, but i dont know how to flash correctly, if i dump the uboot partition, nothing changes after DD - maybe i'm using DD wrong
<beeble>
additional info like what cpu and which bootloader you are using would help also (have to go now, so will probably not answer right away)
<moneymaker>
RK3288 - Bootloader 2.17.02 - which is faulty, i want to flash back to 2.30.10
<moneymaker>
because 2.17.02 has no usbplug integrated, i cant boot with rockusb
<phh>
moneymaker: well then go into maskrom?
<moneymaker>
i wont open up my tablet..bevause everything is glued...
<moneymaker>
and the risk of damaging the LCD is very high
<phh>
well then dd if=/dev/zero of=/dev/block/mmcblk0boot0
<moneymaker>
yeah, thats the pint i dont have the "mmclk0boot0"
<moneymaker>
point*
<moneymaker>
i have mmcblk0 to mmcblkop1 -> p15
<moneymaker>
mmcblk0p1*
<moneymaker>
and p1 claims to be parameter partition and p2 claims to be uboot partition
<phh>
mmm, you're booting from an sdcard?
<phh>
no mmcblk*boot0?
<moneymaker>
atm booting from sdcard, but didnt work either, only recovery....
<moneymaker>
no boot device, neither in sdmmc nor in emmc
<phh>
well then that's not really an emmc if it doesn't have a boot0 partition...
<moneymaker>
SD has mmcblk1 -> p1 and MMC has mmcblk0 -> p15
<phh>
can you paste your full dmesg? like on pastebin
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<moneymaker>
dwmmc_rockchip ff0f0000.rksdmmc:
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<phh>
hum, so that's an eMMC without a boot partition, which is confirmed by the fact that uboot partition starts at 4MB, instead of standard 2MB
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<phh>
well confirmed.. idk
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<moneymaker>
so no luck? in nothing?
<moneymaker>
what if i zero mmcblk0 ?
<moneymaker>
i know, that i flash the Ubootloader.bin at 0x0000000000
<moneymaker>
but cant get the tab in flashmode anymore, only TWRP /adb
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<moneymaker>
1 more idea: how can i make an RKImage Update package, which is detected in standard recovery to update with SDCardUpdate?
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<moneymaker>
anyone has more ideas?
<phh>
you really should get a maskrom...
<phh>
you'll brick your device at some point anyway
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<moneymaker>
but its relly bad to open device to shortcut it....can i just erase the mmcblk0 and get maskrom this way? like dd=if/dev/zero of=/dev/block/mmcblk0
<phh>
perhaps
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<rk3229FQ>
Boot linux distro from sdcard wit system on hd usb , its possible on rk 3229 tv boxes?
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<moneymaker>
Alright i got it back on live guys!
<moneymaker>
Booted SD Recovery, dd=if/dev/zero of=/dev/block/mmcblk0 via ADB -> restarted, still SD Boot possible, remove SD -> MASKROM Mode, flash u-boot that works -> LowerFormat, reflash system -> profit
<moneymaker>
i zeroed about 2GB of mmcblk0
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<phh>
yeah well 1MB should be enough
<moneymaker>
yes, i wanted to be sure :)
<moneymaker>
because i messed up so much with partition layout
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<beeble>
fiparrot: you are interested in a single board or are you looking for something in a project (depending on that my question will have to be different :))