nPM2100-EK no longer usable with nRF Connect

[bios-bob]

my nPM2100-EK can no longer connect to the PowerUP app....  all was working fine for the first few days, but no nothing....  the problem is the same on my PC and Mac....

when i launch PowerUP, it does detect the board:

but when i attempt to connect, the error messages roll continuously:

the board IS powered; the green LED is flashing about 2Hz....

i've currently select VEXT as my power source; but i get the same failure if i select VBAT and plugin a battery board....

from what i recall, this happened the VERY FIRST time i fired up the EK; but after some reboots, everything seemed to settle down -- until now....

is there a firmware image i could load onto the controller????

i'll verify again, but i believe all the jumpers are in their default configuration....

[Menon]

Hello,

the green LED is flashing about 2Hz....

From the logs, it seems that the nPM2100 is not powered. The green LED flashing at about 2 Hz also indicates an unpowered PMIC ,if the PMIC were powered, the LED would be pulsing instead.

Could you also try clicking Unpause under this condition? Please use the Record Event option and send us the log.

Kind Regards,

Abhijith

[bios-bob]

Fullscreen 2025-09-18T14_08_26.972Z-log.txt Download

2025-09-18T14:08:27.064Z INFO Initialising the bundled nrfutil device
2025-09-18T14:08:27.068Z DEBUG Application data folder: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm
2025-09-18T14:08:27.154Z DEBUG App pc-nrfconnect-npm v2.2.2 (official)
2025-09-18T14:08:27.154Z DEBUG App path: /Users/bob/.nrfconnect-apps/node_modules/pc-nrfconnect-npm
2025-09-18T14:08:27.154Z DEBUG nRFConnect 5.2.0, required by the app is (>=5.2.0)
2025-09-18T14:08:27.154Z DEBUG nRFConnect path: /Applications/nRF Connect for Desktop.app/Contents/Resources/app.asar
2025-09-18T14:08:27.154Z DEBUG HomeDir: /Users/bob
2025-09-18T14:08:27.154Z DEBUG TmpDir: /var/folders/v_/6zsfpfcn7198d9t4rq9_y0_r0000gn/T/
2025-09-18T14:08:28.489Z INFO Using the bundled core version for nrfutil device: 8.1.1
2025-09-18T14:08:28.524Z INFO Getting serial port options from the persistent store for E7D489D74AF1E07D.pc-nrfconnect-npm
2025-09-18T14:08:28.524Z INFO Device connected with the serial number E7D489D74AF1E07D
2025-09-18T14:08:28.524Z INFO Device Connected SN:E7D489D74AF1E07D
2025-09-18T14:08:28.594Z INFO Using nrfutil-device version: 2.10.2
2025-09-18T14:08:28.595Z INFO Using nrf-device-lib version: 0.17.71
2025-09-18T14:08:28.595Z INFO Using nrf-probe version: 0.38.0
2025-09-18T14:08:28.595Z INFO Using JLink version: JLink_V8.18
2025-09-18T14:08:35.667Z INFO Selecting device with the serial number E7D489D74AF1E07D
2025-09-18T14:08:35.797Z INFO Selected device with the serial number E7D489D74AF1E07D
2025-09-18T14:08:35.797Z INFO Selected device with s/n E7D489D74AF1E07D
2025-09-18T14:08:35.839Z INFO Opened port with options: {"path":"/dev/tty.usbmodem101","baudRate":115200}
2025-09-18T14:08:35.977Z INFO Closed port: /dev/tty.usbmodem101
2025-09-18T14:08:35.977Z INFO Connected to the device with the serial number E7D489D74AF1E07D and family: Unknown 
2025-09-18T14:08:35.977Z INFO Device setup ready for device with s/n E7D489D74AF1E07D
2025-09-18T14:08:36.014Z INFO Opened port with options: {"path":"/dev/tty.usbmodem101","baudRate":115200}
2025-09-18T14:08:36.262Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.275Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.281Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.285Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.293Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.301Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.311Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.319Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.328Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.337Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.345Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.355Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.365Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.373Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.383Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.391Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.400Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.409Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.417Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.427Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.439Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:36.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:36.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:37.254Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:37.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:37.751Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:37.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:38.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:38.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:38.754Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:38.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:39.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:39.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:39.754Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:39.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:40.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:40.261Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:40.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:40.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:41.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:41.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:41.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:41.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:42.250Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:42.259Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:42.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:42.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:43.253Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:43.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:43.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:43.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:44.253Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:44.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:44.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:44.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:45.251Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:45.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:45.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:45.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:46.253Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:46.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:46.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:46.762Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:47.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:47.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:47.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:47.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:48.254Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:48.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:48.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:48.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:49.251Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:49.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:49.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:49.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:50.253Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:50.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:50.752Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:50.763Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:51.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:51.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:51.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:51.762Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:52.254Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:52.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:52.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:52.762Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:53.253Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:53.263Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:53.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:53.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:55.440Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:55.444Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:55.448Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:55.453Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:55.457Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:55.459Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:55.750Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:55.762Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:56.251Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:56.264Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:56.753Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:56.764Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:57.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:57.261Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:57.751Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:57.761Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:58.252Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:58.262Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:58.751Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:58.762Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:08:59.247Z WARN module_pmic: No response from PMIC.
2025-09-18T14:08:59.256Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:09:00.297Z WARN module_pmic: No response from PMIC.
2025-09-18T14:09:00.302Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:09:00.311Z WARN module_pmic: No response from PMIC.
2025-09-18T14:09:00.315Z ERROR module_pmic_adc: Error: ADC reading failed (-5)
2025-09-18T14:09:00.366Z ERROR npm2100 boost voutsel set Software => Error: Device not ready
2025-09-18T14:09:00.385Z ERROR npm2100 boost mode set AUTO => Error: Device not ready
2025-09-18T14:09:00.403Z ERROR npm2100 boost pinsel set OFF => Error: Device not ready
2025-09-18T14:09:00.421Z ERROR npm2100 boost pinmode set HP => Error: Device not ready
2025-09-18T14:09:00.438Z ERROR npm2100 boost ocp set ON => Error: Device not ready
2025-09-18T14:09:00.455Z ERROR npm2100 ldosw enable set OFF => Error: Device not ready
2025-09-18T14:09:00.476Z ERROR npm2100 ldosw modectrl set auto => Error: Device not ready
2025-09-18T14:09:00.496Z ERROR npm2100 ldosw pinsel set GPIO0LO => Error: Device not ready
2025-09-18T14:09:00.517Z ERROR npm2100 ldosw softstart LDO set 75mA => Error: Device not ready
2025-09-18T14:09:00.541Z ERROR npm2100 ldosw softstart LOADSW set 75mA => Error: Device not ready
2025-09-18T14:09:00.561Z ERROR npm2100 ldosw pinmode set HP/OFF => Error: Device not ready
2025-09-18T14:09:00.578Z ERROR npm2100 ldosw ocp set ON => Error: Device not ready
2025-09-18T14:18:04.276Z ERROR Unable to open the log file: Error: Error invoking remote method 'open:file': Error: Could not find file at path: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm/logs/2025-09-18T14_08_26.972Z-log.txt
2025-09-18T14:18:06.107Z ERROR Unable to open the log file: Error: Error invoking remote method 'open:file': Error: Could not find file at path: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm/logs/2025-09-18T14_08_26.972Z-log.txt
2025-09-18T14:18:07.222Z ERROR Unable to open the log file: Error: Error invoking remote method 'open:file': Error: Could not find file at path: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm/logs/2025-09-18T14_08_26.972Z-log.txt
2025-09-18T14:18:35.495Z ERROR Unable to open the log file: Error: Error invoking remote method 'open:file': Error: Could not find file at path: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm/logs/2025-09-18T14_08_26.972Z-log.txt
2025-09-18T14:18:36.289Z ERROR Unable to open the log file: Error: Error invoking remote method 'open:file': Error: Could not find file at path: /Users/bob/Library/Application Support/nrfconnect/pc-nrfconnect-npm/logs/2025-09-18T14_08_26.972Z-log.txt

here's the log....  but if you're already telling me that a flashing LED means the board isn't powered, i don't know what you expect to find here....

to confirm, VOUT is *not* measuring at 1.8V or 3.0V....

[Menon]

Hello,

Could you upload a picture of your evaluation board so we can confirm that all the jumpers are in the correct position?

If the jumper configuration looks fine, the issue might be that either the board or the PMIC is damaged and no longer operational. If you are not seeing 1.8V or 3V at VOUT, it could mean that VBAT is missing, the nPM2100 is damaged, or VOUT is shorted to GND on the board.

Kind Regards,

Abhijith