User Guide

Phone cannot be powered on (II)

Context

If this kind of failure is presenting itself immediately after FLALI, it is most likely caused by ASIC's missing

contact with PWB.

If the MCU doesn’t service the watchdog register within the Liteplus, the operations watchdog will run out

after approximately 32 seconds. Unfortunately, the service routine can not be measured.

Troubleshooting flow

Figure 14 Troubleshooting when phone does not stay on or phone is jammed

RM-512; RM-513; RM-514; RM-515; RM-543

Baseband Troubleshooting Instructions

Issue 2 COMPANY CONFIDENTIAL Page 3 –7