Hi @vBit,
Happy to see that we aren’t the only one to get that result.
What kind of mSD card is it? Because depending on four aspects I think which are manufacturer, transfer speed, card class and memory size, the mangOh Red will react differently.
I have tried with SanDisk Ultra Plus microSDHC UHS-I 16 Go class A1 with speed up to 98 MB/s and I’ve got the same error like you. I managed to change the format of mSD in ext4 (add support for the mangOH too), exFAT and FAT32 and till the same. With or without IoT. See also Using MicroSD MangOH Red and https://mangoh.discourse.group/t/micro-sd-support-on-mangoh/91/11
I post that.
root@mangoh9:~# dmesg |grep mmc
[ 1.148887] sdhci_msm 7864900.sdhci: No vmmc regulator found
[ 1.148904] sdhci_msm 7864900.sdhci: No vqmmc regulator found
[ 1.149297] mmc0: SDHCI controller on 7864900.sdhci [7864900.sdhci] using 32-bit ADMA in legacy mode
[ 1.630132] mmc0: mmc_sd_init_card() failure (err = -110)
[ 1.634557] mmc0: error -110 whilst initialising SD card
root@mangoh9:~# dmesg |grep sdhci
[ 1.103241] sdhci: Secure Digital Host Controller Interface driver
[ 1.103253] sdhci: Copyright(c) Pierre Ossman
[ 1.103267] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.113726] sdhci_msm 7864900.sdhci: sdhci_msm_probe: ICE device is not enabled
[ 1.113750] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/soc/sdhci@07864900[0]'
[ 1.114120] sdhci_msm 7864900.sdhci: sdhci_msm_pm_qos_parse_irq: error -22 reading irq cpu
[ 1.134004] sdhci_msm 7864900.sdhci: sdhci_msm_pm_qos_parse: PM QoS voting for IRQ will be disabled
[ 1.134023] sdhci_msm 7864900.sdhci: sdhci_msm_pm_qos_parse: PM QoS voting for cpu group will be disabled
[ 1.148887] sdhci_msm 7864900.sdhci: No vmmc regulator found
[ 1.148904] sdhci_msm 7864900.sdhci: No vqmmc regulator found
[ 1.149297] mmc0: SDHCI controller on 7864900.sdhci [7864900.sdhci] using 32-bit ADMA in legacy mode
I suspect mangOhRed may accept only mSD cards with 8 Go capacity and not so high speed, is that right @asyal? Or is it just software?
But it’s still incomprehensible that mSD provided in the kit doesn’t work.
Thanks for any help!