RM500Q for Android 10 cannot get sim slot

[Isaac.Wang-Q]

The main issue is ：

Please try to change the at+cfun=0/1 to fix it, if it still does not work, please try to fix it refer to the following link.

EC25. CME ERROR: 13 interpretation

Hello dear Quectel, Our Android devices use EC25 module and sometimes we are facing with CME ERROR: 13 (Sim failure) problem. This is the RILD logs: AT> ATI AT< Quectel AT< EC25 AT< Revision: EC25ECGAR06A04M1G AT< OK AT> AT+CSUB;+CVERSION AT< SubEdition: V02 AT< VERSION: EC25ECGAR06A04M1G AT< Dec 17 2018 20:28:26 AT< Authors: QCT AT< OK AT> ATE0Q0V1 AT< OK AT> ATS0=0 AT< OK AT> AT+QURCCFG="URCPORT","usbat" AT< OK AT> AT&D2 AT< OK AT> AT+CMEE=1 AT< OK AT> AT+CREG=2 AT< OK AT> AT+CGREG=2 AT< OK …