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Models MT5600ZDX & ZDXV
AT** or AT**0 Download speed is the last sensed speed (recom-
mended command).
AT**1 Download speed is 38.4k bps.
AT**2 Download speed is 57.6k bps.
The Download Initiated message appears upon issuing the AT**n
command.
5. Perform an ASCII upload of the FLM file (e.g., AMDE.S37) from the host
computer to the modem RAM using an industry standard communica-
tions software or an equivalent process (ensure that all ASCII
translation or pacing is turned off). To abort the load at this point, wait
for the FLM download process to time-out, send a bad S37 record, or
reset the modem. If the load process times-out, the modem must be
reset (ATZ) before the FLM can be loaded again.
6. After the FLM has been loaded, perform an ASCII upload of the new
modem firmware hex file (e.g., RC288ACi.S37) from the host comput-
er to the modem RAM using an industry standard communications
software or an equivalent process. There will be a 3-second pause
after the first record of the RC288AXX.S37 file is sent, which is the
FLASH erase cycle. There is no turning back at this point. If the
flash download fails (because of a bad .S37 record for example) or the
upload is aborted, as long as the modem is not turned off or reset, it
will remain in the flash load cycle and the upload can be re-attempted
at step 5.
A Wrong Device message is displayed if an incorrect FLM is used. In
this case, restart at step 5 and upload the correct FLM file.
A Wrong Hex file or flow control message is displayed if an
incompatible hex file format is used (non-Motorola S3 format) or if the
DTE ignores flow control (the flash download uses both Xon/Xoff and
RTS/CTS flow control). If the wrong format was used, reinitiate the
upoad at step 5 using a correct firmware hex file.
7. The Device successfully programmed message is displayed by the FLM
at the completion of a successful download and the modem will do a
cold start. Contact our tech support department if you need more
assistance.