Hello Team!
Using QRBX210-RBX with SC206E firmware BP10.005. AT+CPIN? returns ‘SIM not inserted’.
qcrild is running. Which UIM slot is active on the carrier board and does it require any
hardware configuration (jumper/strap)? I already tried with both slots on the evaluation board.
Hi again for clairification:
I’m using a QRBX210-RBX module with SC206E firmware (baseband: BP10.005 /
SC206EEMNAR60A05), running Linux (Yocto build, kernel msm-5.4).
The modem is running and responsive, but the SIM card is never detected on either slot.
The SIM is physically inserted in the slot on the carrier board.
Diagnostics performed:
-
qlril-api-test → QLRIL_GetIccCardStatus returns card_state: 0 (absent) on both slot 1
and slot 2 -
AT commands via qlril-api-test:
AT+CPIN? → +CME ERROR: SIM not inserted
AT+CCID → ERROR
AT+CIMI → (empty)
AT+QCFG=“simconfig” → +QCFG: “simconfig”,2,2
AT+QCFG=“hotswap” → +QCFG: “HOTSWAP”,0,0
AT+QCFG=“simInsertLevel” → +QCFG: “simInsertLevel”,1,1 -
Changed simInsertLevel to 0,0 and rebooted modem with AT+CFUN=1,1 → still SIM not
inserted -
Changed back to 1,1 and rebooted → still SIM not inserted
-
Tried switching slots via QLRIL_SetSimCardSlotId(1) and QLRIL_SetSimCardSlotId(2) →
card_state: 0 on both -
Kernel shows no UIM/SIM related entries:
dmesg | grep -i “uim|sim” → (nothing)
find /proc/device-tree -iname “uim” → (nothing)
lsmod | grep uim → (nothing) -
qcrild service is running normally
-
SIM card is confirmed working (tested in a phone)
Questions:
- On the QRBX210-RBX carrier board, is the SIM card slot physically wired to the SC206E
UIM pins (GPIO 72-75 for UIM2 or GPIO 76-79 for UIM1)? - Does the carrier board require any jumper, strap, or hardware configuration to enable
the SIM slot? - Which UIM interface (UIM1 or UIM2) should be used on this board?
- Is there a hardware design guide or schematic available for the QRBX210-RBX carrier
board?
Thank you.