User's Manual
Table Of Contents
- IMPORTANT NOTICES
 - RELEASE NOTES
 - INTRODUCTION
 - USING MOBILE COMPUTER
 - LEARNING SOFTWARE ARCHITECTURE
 - SYSTEM MENU
 - PROGRAM MANAGER & KERNEL
 - SPECIFICATIONS
 - DOWNLOAD UTILITY
 - TROUBLESHOOTING
- CANNOT TURN ON WHEN PRESSING POWER KEY
 - CHARGING ERROR
 - BUZZER SEEMS NOT WORKING
 - LED INDICATOR SEEMS NOT WORKING
 - LCD TOUCH SCREEN SEEMS NOT WORKING
 - KEYPAD SEEMS NOT WORKING
 - VIBRATOR SEEMS NOT WORKING
 - MOBILE COMPUTER SEEMS NOT WORKING
 - CANNOT SCAN BARCODES
 - CANNOT DECODE DATA AFTER SCANNING
 - CANNOT TRANSMIT/RECEIVE DATA
 
 - KEY REFERENCE TABLES
 
94 
8700 Series Mobile Computer Reference Manual
4.2.2 KERNEL UPDATE 
Updates the  kernel and bootloader. Suc h up date may be necessary  to improve system 
performance, or for the mercy of  other cons iderations. Refer to  Appendix I 
Download 
Utility
. 
  To download a kernel (K8700.shx)  or bootloader (BL8700.shx) update, the procedure 
is the same as that for downloading a program. 
  Any attempt to download an older version of bootloader will be rejected. 
  The system will restart itself right after downloading. 
Warning:  Whether during the  downloading of ker nel update or  d uring the system 
re-start right a fter the kernel upda te, the mobile computer mustn’t be 
powered off as it could lead to the permanent crash of the kernel. 
Note:  When RS-232 is selected for the transmission interface, the mobile computer stays 
in download mode for about 30 seconds only. The preparation (such as connecting 
the RS-232 cable) and the kernel update  s hould be done before the download  
mode expires. 
Files downloadable through Kernel Menu | 2. Kernel Update are as listed below: 
.SHX Program 
Download one of the following firmware files: 
  Kernel update: 
K8700.shx Firmware File 
  Bootloader update: 
BL8700.shx 
SETTINGS 
Interface 










