Yesterday I received my RAK10701 Field Tester. After charging the battery for a while I turned on the device and the display is greeting me with its splash screen but additionally an error message “TP INIT FAILED”. Than it shuts itself down. I was able to flash a newer firmware via the Linux Snap version of your toolbox, but the outcome ist the same. So my question is what I could try to get it up and running?
Can you confirm if you upload a custom firmware and not the RAK4630 firmware? The guide explicitly shows how to upload the RAK10701 custom firmware. It should be this firmware.
I will check with the possible causes of TP INIT fail since it is a generic error and not related to GPS, LoRa, etc. Btw, after the update of firmware you can still open the device but on boot-up it still shows TP INIT FAILED right?
TP INIT failure points to a problem with the touch screen. Maybe you can check the flex cables from the display to the WisBlock module inside. It might be there is a connection problem.
Be careful when opening the device, everything is very tight inside.
Then check the cable connection I marked here:
@beegee Thanks for the detailed information. I disassembled the tester and checked all U.FL and flat flex cables twice. All seem to be connected probably and with no damage. I also removed all modules from their sockets an re assembled everything back together. Sadly the same error on the display.
@carlrowan@beegee I have again checked all connections an reassembled the whole tester. Interestingly when I disconnect the touch screen connector an power on the device I get a “GPS INIT FAIL”. Any more ideas what I could try?