ameriDroid MicroSD/eMMC adapter for Odroid

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ameriDroid MicroSD/eMMC adapter for Odroid

Post by Nitpicking »

So I bought the adapter along with an eMMC module. it's so cheap, it seemed like a no-brainer.

Except it seemingly can't actually be used.

The thing is, it's the size of a MicroSD card:
Image

If I attach the eMMC module so that it overlaps the board, it triples the thickness and the adapter board can't be inserted in a microSD slot. If I attach it so that it extends out past the adapter:
a)It's wobbly and unstable, and
b)I get an error when inserting the clumsy stack, on two different PCs running different operating systems.

So ...not useful.

I even tried another eMMC module. No dice.

So, experts, please weigh in: is my adapter defective? Is it just a bad design?

Thanks.

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by rooted »

With it doubling the thickness is incorrect and may have damaged it, I'm not certain as I've never done that personally.

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by L67GS »

I have one and it's my only eMMC programmer. Of course the eMMC snaps on with the body of the eMMC hanging out. Every eMMC module I have snaps firmly onto it, and every eMMC module I own is genuine HK.
Mine doesn't work in certain USB to MicroSD adapters, in fact mine is best when used in my Dell laptop built-in SD card slot with a micro adapter, which is usually a bad combination. I've never wasted my time trying it in windows but it works well with Etcher under Linux mint so should be fine with Etcher under less useful operating systems.

If it's really wobbly I'd look at it under a mag for damage, and make sure you're snapping it on all the way as it does take a little force.

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by istanbulls »

You should not install the module overlapped with the card, it should be like the picture I shared.
I have two card readers, one is s-link which I bought 20 years ago, usb3 Kingston G4 which I bought a couple of years ago. I can't use the Kingston one, it doesn't see emmc, the s-link one is usb1.1 but it works fine.
When I insert it into the SD card socket on the n2, it doesn't see emmc either. so i usually use DD method from terminal. It used to work with the N2's SD card socket, but over time something broke. I have 7-8 emmc modules, they are all the same.
Attachments
emmc mod.jpeg
emmc mod.jpeg (218.86 KiB) Viewed 105 times

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by mad_ady »

If the adapter doesn't work for you (when plugged in as illustrated), you can flash your emmc by inserting it directly in the N2.
There are two methods:
1. Boot with petitboot. Select the Etcher image. Flash it with Etcher on the N2
2. Attach a microusb cable between the N2 and a PC. Boot with petitboot. Select exit. In the shell that appears type ums /dev/mmcblk0. The emmc module is now visible as a disk to your PC and you can flash with etcher.
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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by Nitpicking »

Thanks for the images. I was sure it had to be "hanging off the end" configuration, but then it didn't work ....
mad_ady wrote:
Sun Jun 19, 2022 8:10 pm
If the adapter doesn't work for you (when plugged in as illustrated), you can flash your emmc by inserting it directly in the N2.
There are two methods:
1. Boot with petitboot. Select the Etcher image. Flash it with Etcher on the N2
2. Attach a microusb cable between the N2 and a PC. Boot with petitboot. Select exit. In the shell that appears type ums /dev/mmcblk0. The emmc module is now visible as a disk to your PC and you can flash with etcher.
I tried #2. No dice. I'll try it again with a different cable.

In #1, I presume you mean to boot off a microSD card, then flash the eMMC using Etcher in, say, Ubuntu? Or does petitboot have the ability to run Etcher in its own mini-OS?

Thanks.

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by mad_ady »

No, for #1 you need to boot into petitboot, select Exit. In the shell type

Code: Select all

udhcpd
netboot-default
exit
You should get a selection of oses in the menu.
Also, show us a picture (front/back) of your emmc.

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by Nitpicking »

@mad_ady, I assume that first command was "udhcpc"? This petitboot environment does not have "udhcpd".

udhcpc does not connect to anything. Note that I do not have wired networking in my apartment, only 802.11. I suppose I could run a cable to my PC, if there's no way to have petitboot detect wifi. I have the USB wifi+Bluetooth adapter from Ameridroid, but I would be unsurprised if petitboot lacks a client for it.

Images of my eMMC:

Image
Image

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Re: ameriDroid MicroSD/eMMC adapter for Odroid

Post by mad_ady »

Yes, I meant udhcpc, sorry. And it only works on wired internet, because there's no room left in petitboot to support wifi.

And the emmc looks good. It should work in the adapter.

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