Gps Phoenix Interface; Sim Card; How Sim Card Works - Nokia 6235 Baseband Description And Troubleshooting

Nokia Customer Care

GPS Phoenix Interface

Run the GPS Quick Test in Phoenix to check the GPS BB.

SIM Card

How SIM Card Works

Nokia 6235/6235i/6236i supports two types of SIM cards that work at 1.8V and 3.0V.
When you power up your phone with a SIM card, D2800 sends a 1.8V signal to the SIM
card and waits for the SIM card's response and identification. After a wait period, if there
is no answer from the SIM card, the phone will send another signal at 1.8V. In this case
Issue 1 04/2005
Figure 31: Phoenix GPS Testing option
©2005 Nokia Corporation
6235/6235i/6236i (RM-60)
Baseband Description and Troubleshooting
CW test fails unless CW tone is injected
in GPS RF connector
Company Confidential Page 31