openwrt serial console mini computers images

If you are convinced that you want to use the HooToo firmware I recommend spending another $20 and buying a second unit rather than hassle going back and forth. Reloading the original HooToo firmware is not difficult for a well versed embedded hardware/software hacker but it's 'plug and play' and there aren't any specific instructions. You can use these files to revert back to factory if you wish. The files are named using the partition labels from the flash chip and will be under the 'HT_FLASH' directory on the stick. It copys the entire TM02 MTD device as one file to your flash stick as well as each separate partition as individual files. Then it writes a complete backup of the factory flash MTD device to your USB flash stick. The first thing the loader does is shutdown various services that might interfere with the flashing process and perhaps free up some RAM. Again, the pads are on the edge of the board and marked.

The TM04 requires that you carefully remove the daughter board and then the three screws holding the base board in place. The pads or on the bottom of the board near the edge (see photos). Remove the bottom cover on the TM02 and carefully remove the board. Both devices can be gently pried apart with a very thin screwdriver. The connections are well marked and it's not difficult at all. If you plan on doing a lot of experimenting I recommending this as it's an invaluable tool for configuration, debug, and recover - as long as you can solder the connections without ruining the board. Also, having a serial console connection is very useful as a debug and recovery tool.

If you have at least average soldering skills you can solder a 3v USBSerial cable to the board, setup a tftp server and replace it using tftp, then reboot and use that to burn the OpenWRT sysupgrade image to the correct MTD partition using tftp.

Openwrt serial console mini computers images