Vbat negative and config not restored

[helgein]

Firmware: 0.3.1-20191021

Config is not stored, battery icon is empty, vbat returns -1.
Battery works fine and powers the device for multiple minutes without usb cable plugged in.
After power cycling, all display related configuration of traces, format, channels are lost
and a "weird default" shows all 4 traces.

Flashed the "Eraser":

C:\Dell>"C:\Program Files (x86)\STMicroelectronics\Software\DfuSe v3.0.6\Bin\DfuSeCommand.exe" -c -d --fn FILLFF.dfu
...

Flashed the image:

C:\Dell>"C:\Program Files (x86)\STMicroelectronics\Software\DfuSe v3.0.6\Bin\DfuSeCommand.exe" -c -d --fn ch.dfu
1 Device(s) found :
Device [1]: STM Device in DFU Mode, having [2] alternate targets
Target 00: Upgrading - Download Phase (100)...Duration: 00:00:10
Upgrade successful !

• Power-cycled the device. Empty battery-icon shown.
• in the terminal, executed

ch> clearconfig 1234
Config and all cal data cleared.
ch> saveconfig
Config saved.
ch> vbat
-1 mV

• Calibrated it, stored to "0".
• Configured to just show traces 0 and 2 as smith for ch0 and ch1.
• saved the config from the touchscreen as well as from the terminal via "saveconfig" command.
• vbat negative:

ch> vbat
-1 mV

tried terminal command "clearconfig" but it did not change a thing.

[edy555]

• Did you install D2? It is needed to show the battery indicator.
• Try to cycle power after clearconfig, do not do saveconfig.

[qrp73]

it seems that it's better to make reset after clearconfig, because some peoples trying to do saveconfig just after clearconfig, which leads to write wrong config back. I already seen such reports

[edy555]

added guide text after doing clearconfig at e6035a5

[ZeroChaos-]

I have done a clearconfig and power cycle but vbat shows -1 and I have no battery icon at all. I am using c40d78d (today).

I bought a nanovna off amazon from some no name seller, so I can't really say much about the board other than the battery indicator used to work.

[RolandWa]

Hi Zero, You have to check if you have soldered diode to the power supply sampling point, see the web page below : https://www.google.com/amp/s/dw1zws.com/enabling-battery-status-indicator-on-nanovna/amp/ Roland pon., 9 mar 2020, 18:13 użytkownik Zero_Chaos <notifications@github.com> napisał:

…

I have done a clearconfig and power cycle but vbat shows -1 and I have no battery icon at all. I am using c40d78d <c40d78d> (today). I bought a nanovna off amazon from some no name seller, so I can't really say much about the board other than the battery indicator used to work. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#91?email_source=notifications&email_token=AGWQJMQSM5R7WC6IQZOS4R3RGUWVVA5CNFSM4JGBNQQKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEOIFGMA#issuecomment-596661040>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGWQJMSVMPFTN3GVMEFS24LRGUWVVANCNFSM4JGBNQQA> .

[ZeroChaos-]

thanks for the pictures, that is my problem.