Omega2+ not broadcasting APN after upgrading custom kernel - how to reset
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I ran
make menuconfigto add huawei_cdc_ncm to the kernel and recompile the kernel. After that, I copied the image to the Omega2+ and ran
sysupgrade lede-ramips-mt7688-omega2p-squashfs-sysupgrade.binThe system reboots, but is not broadcasting the apn anymore.
I tried to reset by pushing the RESET button on the power dock for around 10 seconds. The led keeps flashing forever.
How can I reset the system back?
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@aobs
If you can't connect to the Omega via wifi, probably Firmware Flashing from USB Storage via serial is your only remaining option.
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@cas Thanks. I only have a power dock so I cannot access the UART0 TX/RX pins. I ordered an expansion dock just now so that I can have access to the USB to serial connection. I tried using the UART1 TX/RX pins connected to the FT231X, but cannot get a serial device on my MAC. Looks like there is nothing I can do in the meantime.
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@aobs might be worth trying RX0-pin13/TX0-pin12 while you wait.
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@aobs
It is WiFi SSID, not APN.
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@ccs-hello The SSID is actually the name of the access point.
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@Douglas-Kryder The power dock does not expose the RX0 and TX0 unfortunately.
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@aobs oh, ok. it did occur to me that you might follow the various guides for applying power to the omega without a dock and then just attach necessary wires to the TX0/RX0 pins. but, maybe not.
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@Douglas-Kryder Did not try connecting without the dock before. Took your suggestion. Tried connecting the RX0/TX0 pins using pin header connectors. Still cannot get a serial connection. Probably, I will wait for the expansion dock and try it again.
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@aobs just checking here but did you use a 3.3v usb to serial connection [cp210x] like one of these?
https://goo.gl/DnVmSX
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@aobs i think the FTDI [FT231X] is not compatible with the onion usb to uart SiLABS CP210x . might want to research that a bit.
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@Douglas-Kryder Yes, I have doubts too. I am buying this https://www.aliexpress.com/item/CJMCU-CP2102-MICRO-USB-to-UART-TTL-Module-6Pin-Serial-Converter-UART-STC-Replace-FT232-NEW/32499746290.html?spm=a2g0s.13010108.99999999.12.hvofLV.
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@aobs The FTDI FT231X adapter is working well with Omega2(+).
Connect one to your PC USB host port, run a terminal program (115200 8N1, no flow control) and perform a loopback test.If the test is OK then connect RX to TX0, TX to RX0 and GND to GND (only! - neither 3.3V nor 5V), push an hold down the RESET BUTTON, switch Omega's power on, release the RESET BUTTON and you should see the U-Boot menu ...
... if you did not overwrite the bootloader previously.
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@György-Farkas Thanks! I finally got it working with the FT231X. For some reason, I need to reboot my MAC every time I make a connection to the Omega 2.
