eMMC recovery tool for ODROID-U2/U3

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Re: eMMC recovery tool for ODROID-U2/U3

Post by meveric »

is it a BLACK eMMC, or a blue or red eMMC module?

Black eMMC modules only work on C1/C2 devices.
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Re: eMMC recovery tool for ODROID-U2/U3

Post by odchab »

red emmc module

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Re: eMMC recovery tool for ODROID-U2/U3

Post by meveric »

odchab wrote:when i stop autoboot on recovery image - insert the emmc and run copy_uboot_sd2emmc
This is actually somewhat confusing, normally there's nothing you start manually.
You boot form SD card with the recoveryimage, plug in the eMMC module and connect the mico USB cable.
No starting of a program is required here. So I wonder what you actually did here.
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Re: eMMC recovery tool for ODROID-U2/U3

Post by odchab »

ok first sorry for my bad english


i´ve tried the recovery procedure as described so many many times - no luck - after booting from sd card (attached terminal via ttl interface) no error message nothing, the blue led still blinking all time - it seemed that the procedure is not started by usb cable

- so i just tried, the manual method, as described here http://odroid.com/dokuwiki/doku.php?id= ... ecovery_u3

with the first try i´ve got the error message

now i´ve tried it again - and it works :D

i don´t know why the normal procedure start ist not invoked by attaching the usb cable

thank you for your help

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Re: eMMC recovery tool for ODROID-U2/U3

Post by meveric »

odchab wrote:i´ve tried the recovery procedure as described so many many times - no luck - after booting from sd card (attached terminal via ttl interface) no error message nothing, the blue led still blinking all time - it seemed that the procedure is not started by usb cable
Well blinking sounds fine, that is what it's suppose to do.
Then you connect the eMMC and do the micro USB and wait until it stops blinking.
But it only works if you connect a micro USB cable to the OTG port and plug the other end in another USB port (for example your PC or another system).
After that it should stop blinking after a short while.

But anyway, I'm glad it worked in the end for you :)
Donate to support my work on the ODROID GameStation Turbo Image for U2/U3 XU3/XU4 X2 X C1 as well as many other releases.
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Re: eMMC recovery tool for ODROID-U2/U3

Post by wojtekrt »

exynos4412_emmc_recovery_from_sd_20140629.zip - not there anymore! please reupload

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Re: eMMC recovery tool for ODROID-U2/U3

Post by odroid »

The link is updated.
It is working now.

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Re: eMMC recovery tool for ODROID-U2/U3

Post by wojtekrt »

Yup, it works alright. Thanks.

You might wanna do the same at the wiki thread http://odroid.com/dokuwiki/doku.php?id= ... ecovery_u3.

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Re: eMMC recovery tool for ODROID-U2/U3

Post by wojtekrt »

Actually I was to hasty to say that anything works, except the link itself.

There are major discrepancies between what happens in procedure and in reality.

1. Prepare a microSD card and flash the attached image. | no problems there, win32diskimager works fine and verifies
2. Boot with the microSD without eMMC | so I just plug in the power and power is on, alive blinks blue and fan goes steadily
Booting is my humble opinion is process of loading oper. sys. so... what about the next point?

3. Turn on U2/U3 and wait for a few seconds and blue LED will blink. | yeah, well you cannot turn odroid on after booting it.. it's the other way around. you can try pressing the power on button though but it doesn't do anything really.
4. Plug your eMMC module into U2/U3 | no changes there.
5. Plug micro-USB cable into U2/U3 and connect other side to your PC USB host or ODROID's USB host port. (This is a trigger to start the recovery) | "alive" diode goes steady blue for 1,5 seconds then fades and stays off. fan goes off, power diode stays red indicating that no one has pulled the plug out.
6. After recovery process (only a few seconds), the blue LED will turn off automatically. | Hope is for suckers
7. Finish. Install OS on your eMMC with as usual. | Finish -> go to the nearest bar and drink yourself to death because after restarting the usual appears: EXT4-fs (mmcblk0p2) bad geometry.

UART procedure is even worse. No response from putty, black screen and wishful thinking instead.

I'm gonna hold on to this thread and update in a while. Maybe I'm missing something obvious to the procedure's author, maybe linked file "emmc_recovery_pegasus_20140629.img" is faulty or my hardware is worthless. IDK.

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Re: eMMC recovery tool for ODROID-U2/U3

Post by odroid »

Is the Blue LED solid on when you connect the power with only eMMC?

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Re: eMMC recovery tool for ODROID-U2/U3

Post by wojtekrt »

The "Alive" blue led blinks.

Problem was solved eventually. Just the right amount of rage and foul language can make miracles happen. I figured if it works for apes then maybe humans could profit too! My own caveman method:
Call the board some nasty adjectives about its mothers' occupation, its grandmothers' occupation etc, toss in some other groin-centered epithets, yell even from time to time, and voila! It went PING! Just around the nastiest story under Gods creation aka "ground-hog-day-rectal-adventure vol 2" I had quit the recovery. New system's on, QED.

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Re: eMMC recovery tool for ODROID-U2/U3

Post by Tony32 »

Anyone know if the eMMC to USB adapter from pine64 work with the eMMCs that the odroid uses?
EDIT: Oh, it does! Just got my XU4 so I tested the adapter with the odroid eMMC and good news, I could flash recalbox flawlessly! No need for crazy usb->sdcard->emmc adapters anymore! :D

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Re: eMMC recovery tool for ODROID-U2/U3

Post by rooted »

Tony32 wrote:Anyone know if the eMMC to USB adapter from pine64 work with the eMMCs that the odroid uses?
EDIT: Oh, it does! Just got my XU4 so I tested the adapter with the odroid eMMC and good news, I could flash recalbox flawlessly! No need for crazy usb->sdcard->emmc adapters anymore! :D
You do know Hardkernel makes a device as well? And it is USB 3.0

https://odroidinc.com/products/usb3-0-t ... ule-reader

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Re: eMMC recovery tool for ODROID-U2/U3

Post by pjnoxon »

The procedure not working for me. I load from link onto SD card, put into U3+,
power on and blue light blinks steady, very carefully attach red 32Gb eMMC,
connect micro USB cable, blue light continues to blink steady forever.

I didn't understand why there was warning about the USB:
Before trying this utility, double check your USB memory reader first.
since in this procedure the USB memory reader is not used? The one I have
I got from Hardkernal. Here is picture:
Image

I was directed to this procedure by robroy from this thread:

viewtopic.php?f=77&p=294029#p294029

The other procedure he suggested was download the Android image for my U3+
32Gb eMMC and boot from that, but I couldn't find that image online. I didn't
understand how if my eMMC will not boot in the first place, putting Android
on it would allow it to boot. See the (very long) terminal monitor in that thread.

I will try the abusive booting procedure from wojtekrt

5 minutes later - well that made it work, plus I connected u-USB to my laptop
instead of connecting to the U3+ itself.

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Re: eMMC recovery tool for ODROID-U2/U3

Post by odroid »

There are seven steps in the first post.
Which step didn't work?

An Android OS image for the U2/3 series is available in this link.
https://odroid.in/?directory=.%2Fmirror ... DROID-U%2F

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Re: eMMC recovery tool for ODROID-U2/U3

Post by pjnoxon »

I did get the procedure to go down to #7 eventually.

I thought the procedure said to plug the micro USB cable into the Odriod U3+ and
the 'big end' of the USB cable to another USB port on the U3+. Once I plugged it
into my laptop instead, the blue light blinked as described. After that I flashed a
OS from that thread viewtopic.php?f=77&p=294029#p294029 referred to above.

If you could take a peek at that thread it has the terminal monitor output in it.
When I boot up the eMMC with the new OS it didn't work, so I tried the boot
recover from this thread but still same problem. I was thinking (maybe that's
the problem, got to stop doing that) there was something about the different
eMMC versions within the OS because I know they are sold pre-loaded but then
I was told this is not the case.

So I was able to get the Smooth Groove working on a SD card.

I'm excited to use Ubuntu Studio on my two U3+ now!

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