HL7588 Android 7.1.1 HAL integration

IoT Modules Legacy HL Series
1

Hi all,

After integrating the latest Sierra HAL into my Android build, still can’t seem to make it work.

I followed the integration guide so I hope someone on this forum can help.

The setup:

  • NXP i.MX6 processor (kernel 4.1.15)
  • Android 7.1.1
  • Sierra HAL V7.1.4
  • HL7588 modem

Observations:

  • Kernel driver seems to be fine (wwan0-3 are up)
  • Android always shows the “No SIM” icon although a SIM is inserted
  • No communication can be made

Here are some logs in case it helps:
pastebin.com/rHqs3UJL

Questions:

  • The driver used for the HL7588 seems to be cdc_ncm so it seemed right to choose sys.ril.type=HL, can you confirm this is correct?
  • The logcat always shows “getIccId: No UICC”, is it normal?
  • How can we make the SIM card properly recognized?
  • The firmware part is confusing, should a specific firmware be flashed on HL7588? Seems that only .exe files are provided…
  • Can this modem work on other carriers than VRZ and ATT? For instance, would this work in Europe with Orange carrier?

Thanks in advance,
Gary

2

Hi,

The SIM card issue was due to a modification from NXP in frameworks/opt/telephony.

This is now sorted out, however the other questions remain.

Thanks,
Gary

3

Did you ever get this figured out?
I am also starting to integrate the HL7588 into Android’s RIL.
Did you just follow the guide and slowly work through all the details?
Any help or advice would be appreciated.