"Still not working" isn't a particularly useful problem description. Describe what steps you took and where you got stuck. In the interest of being constructive, here is a high-level set of steps you can reference:
1. Write mmcboot.installer.img to an SD card, plug it into PP and boot it up. It will show you a graphical installer, follow the prompts to install Tow-Boot.
2. Write a mobian installer image to an SD card. It is possible to flash directly with jump drive et.al. but for now use the installer images until you get at least something working. Boot up the PP with the SD inserted; you will probably need to hold the volume down key (if not try up) while booting to tell Tow-Boot to actually use the SD card. You'll be greeted with the installer, again follow the prompts.
Note:
* If you're unsure whether Tow-Boot has installed correctly, you can tell by the fact that the LED blinks in a different way at bootup vs. using stock/distro-provided U-Boot.
* If you're installing mobian to the eMMC make sure to take the SD card out once the installer finishes (and you've powered off the device).
* In general be mindful of what's on any SD card you insert into the PP, since if there's a valid U-Boot image on there it will override the Tow-Boot that you installed onto mmcboot. e.g. Jumpdrive will override anything you have in eMMC.
1. Write mmcboot.installer.img to an SD card, plug it into PP and boot it up. It will show you a graphical installer, follow the prompts to install Tow-Boot.
2. Write a mobian installer image to an SD card. It is possible to flash directly with jump drive et.al. but for now use the installer images until you get at least something working. Boot up the PP with the SD inserted; you will probably need to hold the volume down key (if not try up) while booting to tell Tow-Boot to actually use the SD card. You'll be greeted with the installer, again follow the prompts.
Note:
* If you're unsure whether Tow-Boot has installed correctly, you can tell by the fact that the LED blinks in a different way at bootup vs. using stock/distro-provided U-Boot.
* If you're installing mobian to the eMMC make sure to take the SD card out once the installer finishes (and you've powered off the device).
* In general be mindful of what's on any SD card you insert into the PP, since if there's a valid U-Boot image on there it will override the Tow-Boot that you installed onto mmcboot. e.g. Jumpdrive will override anything you have in eMMC.
