12-05-2019, 01:52 PM
So, now have un-bricked my PinebookPro and write this from my new Debian versin from the emmc.
My situation was this:
- emmc was turned off on the board (see wiki)
- SD card did boot
So now to get the emmc back again.
Prep:
- Set a shortcut in your desktop environment to easily start a terminal. (see below)
- Get a tiny pin to switch the emmc back on, ideally isolated.
- Put your boot SD card in
1. Unscrew the 10 screws at the back. You need a tiny screw driver for that, don't force it. then gently remove the bottom part of the PBP cover.
2. There are some medium loose bits inside, so don't turn it back. (see wiki for the screw fixture for example, also the loudspeaker can move when open)
3. The Wiki mentions not to open the display, however to turn it you have to open the display a bit. I did not open it fully, more like a 70 degrees angle. Be careful.
4. now the first tricky bit. You have to turn on the PBP. As the PBP is upside down check where the powerbutton is. Then bring your pin into position on the emmc switch.
5. Turn the PBP on. Wait two seconds (you practice with the stopwatch in your smartphone a bit to get that right).
6. The PBP schould now boot without problems from the SD card. But has the kernel found the emmc ?
7. As you have to operate the PBP upside down you use your shortcut to open a teminal. Then use command `lsblk` to see which drives are found. There should be two main devices called mmcblkX (X can vary). your emmc is the one without the root mount. In my case this worked in the first try, however if the timing in step 5 is not quite right you might have to repeat this. From there.
8. With the emmc active I have now closed my laptop and screwed the bottom back on.
9. Open the PBP normally (not upside down)
10 Download a PBP image. I have used the standard Debian release. links in the wiki
11. unpack the downloaded image file and dd it to the emmc (instructions in the wiki)
12. reboot. done
It probably sounds more complicated than it is. Use common sense and don't apply pressure on the PBP.
My situation was this:
- emmc was turned off on the board (see wiki)
- SD card did boot
So now to get the emmc back again.
Prep:
- Set a shortcut in your desktop environment to easily start a terminal. (see below)
- Get a tiny pin to switch the emmc back on, ideally isolated.
- Put your boot SD card in
1. Unscrew the 10 screws at the back. You need a tiny screw driver for that, don't force it. then gently remove the bottom part of the PBP cover.
2. There are some medium loose bits inside, so don't turn it back. (see wiki for the screw fixture for example, also the loudspeaker can move when open)
3. The Wiki mentions not to open the display, however to turn it you have to open the display a bit. I did not open it fully, more like a 70 degrees angle. Be careful.
4. now the first tricky bit. You have to turn on the PBP. As the PBP is upside down check where the powerbutton is. Then bring your pin into position on the emmc switch.
5. Turn the PBP on. Wait two seconds (you practice with the stopwatch in your smartphone a bit to get that right).
6. The PBP schould now boot without problems from the SD card. But has the kernel found the emmc ?
7. As you have to operate the PBP upside down you use your shortcut to open a teminal. Then use command `lsblk` to see which drives are found. There should be two main devices called mmcblkX (X can vary). your emmc is the one without the root mount. In my case this worked in the first try, however if the timing in step 5 is not quite right you might have to repeat this. From there.
8. With the emmc active I have now closed my laptop and screwed the bottom back on.
9. Open the PBP normally (not upside down)
10 Download a PBP image. I have used the standard Debian release. links in the wiki
11. unpack the downloaded image file and dd it to the emmc (instructions in the wiki)
12. reboot. done
It probably sounds more complicated than it is. Use common sense and don't apply pressure on the PBP.