<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div>Hey,</div><div><br></div><div>I am using MC7354 modem with auto technology preference mode and it can work via libqmi on LTE network at the beginning, after run long time, it drop to 3G network and not back to LTE. if I reconnect the modem, it will work on LTE mode</div><div><br></div><div>For to trace the issue why it can't back to LTE mode, I print all cells informations per 5 seconds to check RSSI,RSRP,RSRQ etc. Before modem don't get connected, I can see all key value for LTE,WCDMA,GSM, but after it connect LTE, I only can see the key value for LTE, and when it drop to 3G, I only can see the key value for WCDMA and can't see the key value for LTE or other RAT(radio access technology), so I want to know is there method via libqmi to check the key value for all RAT regardless of the modem connect or disconnect?</div><div><br></div><div>Based on my understand, modem should <span style="line-height: 1.7;">take charge of </span><span style="line-height: 1.7;">cell reselection and RAT </span><span style="line-height: 23.7999992370605px;">reselection, so I think the modem should back to LTE automatically. AM I right?</span></div><div><span style="line-height: 23.7999992370605px;"><br></span></div><div><span style="line-height: 23.7999992370605px;">About this issue, Could you can give me some suggestions?</span></div><div><span style="line-height: 23.7999992370605px;"><br></span></div><div><span style="line-height: 23.7999992370605px;">Thanks in advance.</span></div><br><br><br><br><div>--<br><div>
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<div align="left"><strong><font color="#0000ff"><em>Best Regards,</em></font></strong></div>
<div><strong><font color="#0000ff"><em>Dai,Lijin</em></font></strong></div></div></div></div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>