Specifications

TC65 Release Notes

Strictly Confidential / Released

TC65_rn_v01.041 Page 7 of 8 17.10.2005

• If the USB interface is used to update the TC65 firmware, problems may be encountered

due to the latencies of USB device detection, for example if the USB host is slow

(Clock<1GHz) or the operating system supports only old USB drivers (Windows 2000). In

extreme cases the firmware download may be aborted. As a workaround, you can try to

restart the update procedure any time. The best approach, however, is using an

appropriate USB host, e.g. a PC running Windows XP and fast enough. For further

information on how to update the firmware see the AT^SFDL command in [1] and the

chapter “Generic Firmware Update” in [6].

• While reading data from the InputStream of a Stream/SocketConnection, the Java

function available() could return 2048 bytes instead of the current available bytes. In this

case, the data are available, but the number cannot be resolved and may be any number

between 2 and 2048.

• Note for customers migrating from TC45 to TC65:

If you uninstall the TC45 software after the installation of TC65 you need to run the TC65

SDK and MES setup in maintenance mode to restore several files required for TC65. To

do so, open the Windows Control Panel, double-click Add or Remove Programs, select

“TC65 Software Development Kit”, press the Change/Remove button and select Repair.

In the same manner, reinstall the "Siemens Module Exchange Suite (MES)".

As an alternative, to avoid this step, remove the TC45 package, before installing TC65

SDK and MES.

5 Recommendations for GPRS

AT^SGCONF: The factory default of the PDU length parameters is 500 octets. In some

networks, however, it may be advisable to select the maximum value 1520 in order to

increase the performance. The setting is stored non-volatile.

6 Handling of TC65 Modules Prepared for Customer IMEI

This section applies only to TC65 modules delivered with the IMEI and software version

number (SVN) left blank. This is a product line which allows application manufacturers to

store their own IMEIs and software version numbers.

Mobile equipment is not admitted to the GSM network unless the IMEI is assigned and

stored inside the device. Therefore all TC65 modules with blank IMEIs are preconfigured

only for use in Airplane mode, meaning that the TC65 enters the Airplane mode when

switched on. The mode is indicated by the URC “SYSSTART AIRPLANE MODE”.

In Airplane mode, all AT commands requiring a radio connection are deactivated, including

the option to enable/disable the Airplane mode with AT^SCFG. Only network-independent

features are usable and available to run basic tests in the factory. The AT commands

required for writing the IMEI and the SVN are also permitted. After successfully writing the

IMEI and the SVN the TC65 module needs to be restarted. The module will then enter the

Normal mode, indicated by the URC “SYSSTART”.