No current when pressing power on key
Charging troubleshooting
Troubleshooting flow
When inserting the USB adaptor into the phone, the phone will detect a valid voltage if charger output
voltage is 4V – 6.5V. Charging is enabled by SW when charger voltage is between 4V-6.5V. But if something
is wrong with the voltage detect/measurement circuit, then the phone cannot correctly identify the
charger.
RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
Page 3 – 12 NOKIA INTERNAL USE ONLY Issue 1
Copyright © 2013 Nokia. All rights reserved.
To Next Page
Loading...
