QMI Not working

[britus]

PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" VERSION_CODENAME=stretch ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"

WaveShare 4G-Hat : Manufacture ID...: SIMCOM INCORPORATED : Model identifier.: SIMCOM_SIM7600G-H : Firmware revision: LE20B02SIM7600M22 : Firmware modem...: B02V03 / MDM9x07_LE20_LWG_22_V1.02_191213

Sep 28 11:30:48 tinkerboard carmonitor[1597]: DHCPCLT: State Selecting Sep 28 11:30:50 tinkerboard kernel: [ 223.179869] ------------[ cut here ]------------ Sep 28 11:30:50 tinkerboard kernel: [ 223.179903] WARNING: CPU: 0 PID: 1650 at net/sched/sch_generic.c:306 dev_watchdog+0x1b0/0x238() Sep 28 11:30:50 tinkerboard kernel: [ 223.179916] NETDEV WATCHDOG: wwan0 (qmi_wwan): transmit queue 0 timed out Sep 28 11:30:50 tinkerboard kernel: [ 223.179926] Modules linked in: 8723bs Sep 28 11:30:50 tinkerboard kernel: [ 223.179952] CPU: 0 PID: 1650 Comm: iomon Not tainted 4.4.132+ #15 Sep 28 11:30:50 tinkerboard kernel: [ 223.179962] Hardware name: Rockchip (Device Tree) Sep 28 11:30:50 tinkerboard kernel: [ 223.179995] [] (unwind_backtrace) from [] (show_stack+0x20/0x24) Sep 28 11:30:50 tinkerboard kernel: [ 223.180018] [] (show_stack) from [] (dump_stack+0x80/0xa0) Sep 28 11:30:50 tinkerboard kernel: [ 223.180040] [] (dump_stack) from [] (warn_slowpath_common+0x98/0xc4) Sep 28 11:30:50 tinkerboard kernel: [ 223.180059] [] (warn_slowpath_common) from [] (warn_slowpath_fmt+0x40/0x48) Sep 28 11:30:50 tinkerboard kernel: [ 223.180080] [] (warn_slowpath_fmt) from [] (dev_watchdog+0x1b0/0x238) Sep 28 11:30:50 tinkerboard kernel: [ 223.180105] [] (dev_watchdog) from [] (call_timer_fn+0xb8/0x228) Sep 28 11:30:50 tinkerboard kernel: [ 223.180126] [] (call_timer_fn) from [] (run_timer_softirq+0x278/0x2f0) Sep 28 11:30:50 tinkerboard kernel: [ 223.180146] [] (run_timer_softirq) from [] (do_softirq+0x168/0x3c8) Sep 28 11:30:50 tinkerboard kernel: [ 223.180166] [] (__do_softirq) from [] (irq_exit+0x94/0xf8) Sep 28 11:30:50 tinkerboard kernel: [ 223.180188] [] (irq_exit) from [] (handle_domain_irq+0xb4/0xf0) Sep 28 11:30:50 tinkerboard kernel: [ 223.180208] [] (handle_domain_irq) from [] (gic_handle_irq+0x60/0xa4) Sep 28 11:30:50 tinkerboard kernel: [ 223.180226] [] (gic_handle_irq) from [] (irq_svc+0x54/0x90) Sep 28 11:30:50 tinkerboard kernel: [ 223.180237] Exception stack(0xeab2dcd0 to 0xeab2dd18) Sep 28 11:30:50 tinkerboard kernel: [ 223.180252] dcc0: eab2dd3c 00000001 ffd7ec00 c14fd324 Sep 28 11:30:50 tinkerboard kernel: [ 223.180270] dce0: eab2dd3c 0000059f ede02000 edda0000 ede022e0 edda0210 00000001 eab2dd34 Sep 28 11:30:50 tinkerboard kernel: [ 223.180285] dd00: eab2dd38 eab2dd20 c05f55d0 c05f5574 a0030013 ffffffff Sep 28 11:30:50 tinkerboard kernel: [ 223.180307] [] (irq_svc) from [] (read_current_timer+0x24/0x48) Sep 28 11:30:50 tinkerboard kernel: [ 223.180328] [] (read_current_timer) from [] (__timer_delay+0x38/0x5c) Sep 28 11:30:50 tinkerboard kernel: [ 223.180348] [] (timer_delay) from [] (timer_const_udelay+0x2c/0x34) Sep 28 11:30:50 tinkerboard kernel: [ 223.180368] [] (timer_const_udelay) from [] (timer_udelay+0x20/0x28) Sep 28 11:30:50 tinkerboard kernel: [ 223.180392] [] (__timer_udelay) from [] (spi_transfer_one_message+0x344/0x49c) Sep 28 11:30:50 tinkerboard kernel: [ 223.180415] [] (spi_transfer_one_message) from [] (spi_pump_messages+0x6b4/0x6f4) Sep 28 11:30:50 tinkerboard kernel: [ 223.180436] [] (spi_pump_messages) from [] (spi_sync+0x220/0x28c) Sep 28 11:30:50 tinkerboard kernel: [ 223.180457] [] (__spi_sync) from [] (spi_sync+0x1c/0x20) Sep 28 11:30:50 tinkerboard kernel: [ 223.180477] [] (spi_sync) from [] (spidev_sync+0x7c/0x90) Sep 28 11:30:50 tinkerboard kernel: [ 223.180497] [] (spidev_sync) from [] (spidev_ioctl+0x738/0x82c) Sep 28 11:30:50 tinkerboard kernel: [ 223.180520] [] (spidev_ioctl) from [] (do_vfs_ioctl+0x56c/0x690) Sep 28 11:30:50 tinkerboard kernel: [ 223.180540] [] (do_vfs_ioctl) from [] (SyS_ioctl+0x5c/0x84) Sep 28 11:30:50 tinkerboard kernel: [ 223.180559] [] (SyS_ioctl) from [] (ret_fast_syscall+0x0/0x48) Sep 28 11:30:50 tinkerboard kernel: [ 223.180573] ---[ end trace e86b9d1108909110 ]--- Sep 28 11:30:50 tinkerboard carmonitor[1597]: DHCPCLT: State Init