LIST OF eMMC reader (converter) VERIFIED MicroSD adapter.

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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby Priidu » Mon Jul 03, 2017 12:40 am

So here's a couple of µSD card readers that I've tried:

Working
Sabrent CR-UMSS - this one worked fine, however it broke unexpectedly after 2 or 3 uses. The stick looks cool, but the build quality (and price) aren't that great. Avoid.
Ωmega Card Reader - a generic no-name brand reader; works perfectly with the Hardkernel µSD adapter. Very cheap, but does the trick.


Not working
Sony Ericsson CCR-80 - Came with a Sony Xperia phone I own, so naturally I tried it. Works with plain old µSD cards, but doesn't recognize the Hardkernel adapter. Avoid.

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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby kodikwiz » Tue Jul 04, 2017 2:19 am

I am using it and it works perfectly for me.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby Yuu » Wed Aug 23, 2017 2:46 am

Hello,

I have a no-name card reader and it is working quite fine, I have just flashed one disk image with it:
Code: Select all
[ 5953.174357] usb 2-1: new high-speed USB device number 3 using ehci-pci
[ 5953.861539] usb 2-1: New USB device found, idVendor=0bda, idProduct=0151
[ 5953.861544] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5953.861547] usb 2-1: Product: USB2.0-CRW
[ 5953.861550] usb 2-1: Manufacturer: Generic
[ 5953.861553] usb 2-1: SerialNumber: 20060413092100000
[ 5953.863098] usb-storage 2-1:1.0: USB Mass Storage device detected


Some pictures :
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby odroid » Mon Mar 19, 2018 7:48 pm

We've developed a fast and reliable USB 3.0 eMMC Writer with the following specification.
- USB 3.0 Interface
- Native eMMC 8bit wide data interface, instead of slow SD 4bit width
- Works in HS200 mode
- Flashing speed is 3-4 times faster than a normal USB 3.0 card reader i.e. Transcend TS-RDF5K.
- Windows / Mac / Linux Compatible
- Works with ODROID Orange, Red and Blue eMMC modules (It is not compatible with the Black eMMC Modules)
- Use with Etcher or Win32DiskImager software on your PC
- It can't access the eMMC hidden boot blocks, unfortunately.
- Rated Power : 5V/500mA (including eMMC module)
- Dimensions : 60x26x4.5 mm
Image
Image

If you need further information about USB3.0 eMMC Module Writer, visit this link.
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G152105300286
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby mad_ady » Mon Mar 19, 2018 8:09 pm

With the right case it would make an awesome usb3 stick :)
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby chh » Sat Jul 07, 2018 10:43 pm

Can this one be bought anywhere in Europe?

odroid wrote:We've developed a fast and reliable USB 3.0 eMMC Writer with the following specification.
- USB 3.0 Interface
- Native eMMC 8bit wide data interface, instead of slow SD 4bit width
- Works in HS200 mode
- Flashing speed is 3-4 times faster than a normal USB 3.0 card reader i.e. Transcend TS-RDF5K.
- Windows / Mac / Linux Compatible
- Works with ODROID Orange, Red and Blue eMMC modules (It is not compatible with the Black eMMC Modules)
- Use with Etcher or Win32DiskImager software on your PC
- It can't access the eMMC hidden boot blocks, unfortunately.
- Rated Power : 5V/500mA (including eMMC module)
- Dimensions : 60x26x4.5 mm
Image
Image

If you need further information about USB3.0 eMMC Module Writer, visit this link.
http://www.hardkernel.com/main/products/prdt_info.php?g_code=G152105300286
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby mad_ady » Sat Jul 07, 2018 10:58 pm

Sure. Here for example: http://www.eu.diigiit.com/hardkernel-us ... le-adapter
Check out the distributor list.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby chh » Sat Jul 07, 2018 11:50 pm

Oh cool. Thanks.
I did check the list, but left out France as their shops often are not available in english.
Great that one is.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby callmesteve » Wed Aug 08, 2018 5:18 am

I am not certain what the point of the Odroid branded reader is if it can't read the boot blocks. Do any of the others work (for example, the Transcend ones shown at the top) for reading/writing the boot blocks?

For that matter, how would I actually write those (if the reader allows it) when flashing the card? Wouldn't the image just put the boot section in the normal memory, not the hidden portions? (A rather large concern for me: and, for readers like the official Odroid one or others that don't show the hidden areas, what does flashing an image do if it CAN'T find the hidden partitions?)

There's got to be a way that doesn't involve an SD card and an Android image, right? That option still seems sketchy.
If I can't open it, I don't own it.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby odroid » Wed Aug 08, 2018 9:05 am

AFAIK, there is no card reader/writer can access the hidden boot block from a host PC via USB mass storage interface.

Once you boot from SD card, you can access the eMMC hidden block via /dev/mmcblk0boot node.
Refer this wiki page.
https://wiki.odroid.com/odroid-xu4/software/building_u-boot_mainline#update_the_u-boot_binary_in_emmc_module_on_linux_command_line
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby callmesteve » Wed Aug 08, 2018 11:37 am

So there's some magic thing that the board can do with the eMMC that no card reader can?
But at least the board can... somehow.

Quick question: The fastboot options: Are those run from the Odroid, or do I somehow connect it to another computer and run it from there?
If I can't open it, I don't own it.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby odroid » Wed Aug 08, 2018 12:05 pm

The fastboot protocol needs the micro-USB device port while XU4 has no such interface. XU3 has a micro-USB port works in device mode for fastboot interface, not a host mode.
But you still need a bootable device(SD or eMMC) even on the XU3 to start the fastboot communication.

There is no magic. XU4 Exynos SoC must load the boot binary from the hidden boot block in eMMC if you don't use an SD card.
We can't change the SoC internal ROM code.

Anyway, it is too much off-topic. Open a new thread if you need further discussion.
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby yuvadm » Mon Aug 13, 2018 10:47 pm

odroid wrote:We've developed a fast and reliable USB 3.0 eMMC Writer with the following specification....


I just received this order and I see that this adapter doesn't support "black eMMC" modules.
This is pretty disappointing.
Why doesn't it work?
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby callmesteve » Tue Aug 14, 2018 1:29 am

That is a good question. For that matter, why is the Orange the only one still produced? Isn't 5.0 a step back from 5.1?
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby odroid » Tue Aug 14, 2018 8:30 am

Orange eMMC module has the eMMC 5.1 chipset.
The eMMC Writer board was designed with our eMMC PCB rev 0.4(Orange) while the black eMMC PCB revision was 0.3.
https://wiki.odroid.com/accessory/emmc/reference_chart
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Re: LIST OF eMMC reader (converter) VERIFIED MicroSD adapter

Unread postby Omniwing » Fri Oct 12, 2018 4:17 am

So, I just bought an XU4 and a 16gb eMMC from hardkernel, and also the eMMC to microsd adapter. I went to Best buy and got a microsd to us adapter, but it can't see the eMMC chip at all. I don't think it's compatible. However, from what I read above, can't I just buy an SD card, boot from that, then use the odroid itself to flash the eMMC to what I want? That's the only way to change the hidden sectors anyway right? Do you have to change the hidden sectors to for example put Lakka on it? If I did buy a microsd to usb adapter that did actually work, it still couldn't change the hidden boot sector of the eMMC right? So what's the point? Wouldn't that do nothing at all then? I don't understand. Do you have to change the hidden sectors to change the OS on the eMMC or not?
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