question

mike-bateman avatar image
mike-bateman asked

Rescue Cerbo GX from white screen - Installed SerialBattery while on SW2.77

Hello. Earlier this week I attempted to Install SerialBattery on my CerboGX. I failed to read step 1 of the directions which advised to update firmware to 2.9. Now I have the white screen. I tried the forced reset with the SD card, and now I have lost my superuser status and cannot SSH into the device to update the firmware. I have connected to the CerboGX with the Serial-USB adapter, but I cannot figure out how to talk to the device to force it to update.


Sorry for my lack of experience. I appreciate the help.

Attached is what populates on startup in the terminal window using screen on my computer. This part near the bottom seemed suspicious to me:


Checking available software versions...
Active rootfs: 1
Active version: 20220419072633 v2.77
Filesystem errors detected on backup rootfs
/etc/rc5.d/S99custom-rc-late.sh: line 5: /data/rc.local: No such file or directory


MB CERBO GX.txt

cerbo gxmodifications
mb-cerbo-gx.txt (25.3 KiB)
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1 Answer
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bonzai answered ·

Hello, the superuser must be reactivated in the remote console and the password reassigned, then you will have full access again. As far as I know, this has to be done with every update.

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mike-bateman avatar image mike-bateman commented ·
Thanks for the reply. With the white screen, it seems like a fools errand to try to set up superuser status.


Was hoping somebody had some insight on Serial Uart communication with the device.

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