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HUAWEI ME909u-521 LTE LGA Module
Application Guide
Overview
Issue 01 (2013-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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2. If the module returns failure information, go to step 5.
3. If the module returns success information, the module is functioning normally.
4. If the host times out (the host waits for a response for over 30 seconds) three
times when waiting for the response from the module, go to step 5. Otherwise go
to step 1.
5. The host deems that the current module does not exist or is unavailable. Close
the port, stop sending all AT commands, exit the procedure to determine
whether the module is normal, and re-search for modules.