Le potato's Emmc Issue

Start Boot
,
1

So my emmc had Ubuntu as an OS before and was working fine for months, and last week I decided to switch to Raspbian and tried to follow the same tutorial that I used before that involves interupting interrupting u-boot and running: ums 0 mmc 0. but when I tried to format the emmc on my pc, the emmc didn’t show the real storage which is 16gb instead it was 200 something mb so I went on youtube and followed this guy tutorial to make the emmc showcase the real storage : https://www.youtube.com/watch?v=bHqFaJfpviI
but after following that tutorial and formatting the emmc ones again on exfat or fat I don’t remember for sure the emmc disconnected from my pc so I removed power supply from the le potato to try that again but on the booting screen it’s showing me this :
switch to partitions #0, OK
**invalid partition 1 **
couldn’t find partition mmc 0:1
Card did not respond to voltage selectif : -110
no mmc device at slot 2
Device 0: unknow device

and I can’t even use my keyboard as it disconnects everytime I plug it to try and write something :pensive:
any solution would be greatly appreciated.

2

Is this forum dead? anyone?

3

If you plug in the keyboard and the device powers off, you need to provide auxiliary power to the board via MicroUSB.

4

ok thanks, but what about the Emmc problem! is there a solution for it?

5

Did you type in ums 0 mmc 0?

6

yes, I did! so when I typed it this is what I got: 27-EC30-CE-3497-4749-93-E6-187-EACC9-FEA4 hosted at ImgBB — ImgBB (ibb.co)

and then I tried a second time but I had a micro sd together with the emmc both plugged and typed it and this is what I got: 5-FBE9-D3-E-8-A5-E-4667-8-C1-B-790964-B0635-F hosted at ImgBB — ImgBB (ibb.co)

7

Check the eMMC pins for damage. Might have broken them.

8

No, they seem fine: 97155-ECC-BB4-C-4154-B13-D-D850-BEF696-C3 hosted at ImgBB — ImgBB

9

this problem appeared after I followed the guy’s tutorial to get my Emmc back to 16gb from 200mb as I mentioned on my post, so I think it has nothing to do with any damage.

10

If there does not seem to be any physical damage, eMMC will show up as /dev/mmcblk0 in Linux if you boot from the MicroSD card. You can use libretech-flash-tool to flash an image that way.