I've been experimenting with the working PocketBeagle and possibly modified the uEnv.txt file using the Cloud9 IDE terminal. Then I tried to reboot the board with the shutdown –r now command. The board didn't reload successfully, and after rebooting manually only the power LED was on.
Thinking that I could have corrupted the image, I then erased the SD-card with the diskpart and flashed the SD-card with Etcher once again. The image used is Debian 9.3 2018-01-28 4GB SD IoT. Again only the power LED is on, no other signs of life. The board is also not present in the Device Manager anymore if the SD-card is on the board. If the board is connected to the PC without the SD-card, it's still recognized in the Device Manager.
The SD card is fine, because it's recognized as a Linux filesystem partition, and later I've also flashed the image to a new clean SD-card.
If this is of any help, the uEnv.txt after reflashing contains the following lines (apart from the commented ones):
uname_r=4.9.78-ti-r94
enable_uboot_overlays=1
enable_uboot_cape_universal=1
cmdline=coherent_pool=1M net.ifnames=0 quiet
On Mon, 26 Feb 2018 07:18:07 -0800 (PST), Loader
<bsuir.514302@gmail.com> declaimed the
following:
I've been experimenting with the working PocketBeagle and possibly modified the uEnv.txt file using the Cloud9 IDE terminal. Then I tried to reboot the board with the shutdown –r now command. The board didn't reload successfully, and after rebooting manually only the power LED was on.
<SNIP>
How can the board be revived? Thanks
You've essentially posted this four times in a three day period. You
were given a response to your first post. If that response was not helpful
you'll need to provide better details of your problem and what you've
tried.
Posting the same request multiple times provides us with nothing new to
work on.
(I don't have a PocketB) You mention Device Manager -- I presume
Windows -- but don't state just what appears in which condition... My BBB,
connected through the USB, appears in Device Manager as:
Disk Drives:
Linux File-Stor Gadget USB Device
Network Adapters
Linux USB Ethernet/RNDIS Gadget
Portable Devices
BEAGLEBONE
Ports (COM and LPT)
Gadget Serial (COM7)
USB Serial Device (COM8)
Universal Serial Bus Controllers
{I've got too many entries to keep track of, but the number of entries
went up by two when booting from SD Card -- believe these are the ones}
USB Composite Device
USB Mass Storage Device
So that makes for SEVEN entries in Device Manager related to a BBB
connected via USB port. I'd expect a PocketBeagle to have at least most of
those also.