Nokia RM-57 Service Manual

Contents

Nokia RM-57 Service Manual Manual pdf 154 page image

vii To write the file to phone, click “Start”.Next actionAfter a successful rewrite, the phone must be retuned completely by using Phoenix tuning functions.Note: CARRY OUT ALL TUNINGS (BASEBAND, RF, UI)!Display module troubleshootingGeneral instructions for display troubleshootingThe first step is to verify with a working display that the fault is not on the display module itself. The displaymodule cannot be repaired.The second step is to check that the cellular engine is working normally. This can be done by connecting thephone to a docking station and starting Phoenix service software. With the help of Phoenix read the phoneinformation to check that also application engine is functioning normally (you should be able to read the APE ID).After these checks proceed to the display troubleshooting flowcharts. Use the Display Test tool in Phoenix tofind the detailed fault mode.Operating modes of the displayDisplay is in a normal mode when the phone is in active use.Display is in a partial idle mode when the phone is in the screen saver mode.The operating modes of the display can be controlled with the help of Phoenix.Table 10 Display module troubleshooting casesDisplay blank There is no image on the display. Display looks thesame when the phone is on as it does when thephone is off. The backlight can be on in some cases.Image on the display not correct Image on the display can be corrupted or part of theimage can be missing. If part of image is missingchange the display module. If the image is otherwisecorrupted, follow the appropriate troubleshootingdiagram.RM-57/58Nokia Customer Care BB Troubleshooting and Manual Tuning GuidePage 6–34 Company Confidential Issue 1Copyright ©2005 Nokia. All Rights Reserved.