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| Hi .. 
 Yesterday i have received the orangepi zero 2 board. I have tried with 3 different microsdcards .. and the results are the same.
 Only in android image and using PhoenixCard app i can see the boot process from the serial port.
 I am using a 5V 2A power supply.
 Microsd cards .. 2GB, 4GB, and 64 gb transcend and Sandisk.
 
 Here you have the boot output when using android image :
 U-Boot 2018.05 (Oct 22 2020 - 17:24:26 +0800) Allwinner Technology
 
 [00.507]CPU:   Allwinner Family
 [00.510]Model: sun50iw9
 I2C:   ready
 [00.514]DRAM:  1 GiB
 [00.517]Relocation Offset is: 35ec5000
 [00.555]secure enable bit: 0
 [00.559]pmu_axp152_probe pmic_bus_read fail
 [00.563]PMU: AXP806
 [00.564]PMU: pmu_axp806 found
 [00.569]dcdce_vol = 3300, onoff=1
 [00.572]aldo1_vol = 3300, onoff=1
 [00.575]bldo1_vol = 1800, onoff=1
 [00.578]CPU=1008 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=100Mhz  MBus=400Mhz
 [00.585]init_clocks:finish
 [00.588]drv_disp_init
 [00.611]HDMI 2.0 driver init start!
 [00.619]__clk_enable: clk is null.
 [00.622]hdmi cec clk enable failed!
 [00.628]drv_disp_init finish
 [00.631]gic: sec monitor mode
 [00.634]boot_gui_init:start
 [00.639][HDMI2.0]CEA VIC=16: [00.641]1920x1080p[00.643]@60 Hz [00.644]16:9, [00.645]8-bpp [00.647]YCbCr-444
 [00.648]BT709
 [00.650]eotf:SDR_LUMINANCE_RANGE
 [00.765]switch device: sel=0, type=4, mode=10, format=1, bits=0, eotf=4, cs=257
 [00.772]boot_gui_init:finish
 [00.775]flash init start
 [00.777]workmode = 17,storage type = 1
 try card 2
 set card number 2
 get card number 2
 [00.785]mmc driver ver uboot2018:2019-12-13 9:48:00
 [00.789]get mem for descripter OK !
 [00.794]Set eMMC Power Mode to 1.8V!
 [00.798]card2 io is 1.8V.
 [00.804]get card2 disable pin fail
 [00.807]get sdc_ex_dly_used 2, use auto tuning sdly
 [00.811]get sdc_ex_dly_used 2, use auto tuning sdly
 [00.816]current is product mode, it will tune sdly later
 [00.821]get sdc2 sdc_boot0_sup_1v8 fail.
 [00.825]get card-pwr-gpios faild
 [00.828]get card2_boot_para:time_pwroff_ms:use default time_pwroff:200
 [00.834]Is not Boot mode!
 [00.837]io is 1.8V
 [00.838]init mmc 2 clock and io
 [00.841]devnum 2, prv 7ffac860, bdesc 7c28eb6c
 [00.845]SUNXI SD/MMC: 2
 [00.848]==================== work mode: 17 0, sample_mode:2
 [00.853]=============== start mmc_init_product...
 [00.857]=============== start mmc_init_product...
 [00.868]************Try SD card 2************
 [00.873]rto or no error or software timeout,no need retry
 [00.879]rto or no error or software timeout,no need retry
 [00.884]rto or no error or software timeout,no need retry
 [00.889]************Try MMC card 2************
 [00.897]rto or no error or software timeout,no need retry
 [00.902]Card did not respond to voltage select!
 [00.906]************SD/MMC 2 init error!************
 [00.911]mmc init product failed
 MMC init failed
 try emmc fail
 nand common1 version: v1.02 2020-06-08 10:36
 [00.921]NB1 : enter phy init
 [00.923][NI]enter rawnand hardward init..
 [00.933][ND]Reset NDFC start 0  0
 [00.936][ND]Reset NDFC end 0    0
 [00.939][NE]rawnand not support chip 0: 00 00 00 00 00 00 00 00
 [00.945][NE]rawnand not support chip 1: 00 00 00 00 00 00 00 00
 [00.950][NE]rawnand not support chip 2: 00 00 00 00 00 00 00 00
 [00.956][NE]rawnand not support chip 3: 00 00 00 00 00 00 00 00
 [00.962][NE]no rawnand found!
 [00.964][NE]rawnand_channel_init channel@0 chips init fail
 [00.969][NI]rawnand hardward init fail
 [00.973][NI]---rawnand_dump_clock start---
 [00.977][NI]SUNXI_CCM_BASE: 0x03001000
 [00.980][NI]nand0 clk: 8300010e
 [00.983][NI]nand1 clk: 8300010e
 [00.986][NI]nand bus gating reset: 10001
 [00.990][NI]mbus cfg: c1000002
 [00.992][NI]mbus master clk gating: 25
 [00.996][NI]pll_peri0 ctrl: b8003100
 [00.999][NI]pll_peri1 ctrl: 88003100
 [01.002][NI]---rawnand_dump_clock end---
 [01.006][NI]---rawnand_dump_gpio_nand start---
 [01.010][NI]SUNXI_PIO_BASE: 0x0300b000
 [01.014][NI]pc cfg0: 22222222
 [01.016][NI]pc cfg1: 22222222
 [01.019][NI]pc cfg2 2
 [01.021][NI]pc data: 0
 [01.023][NI]pc drv0_lvl: 55555555
 [01.026][NI]pc drv1_lvl: 1
 [01.029][NI]pc pull_0: 40000440
 [01.031][NI]pc pull_1: 1
 [01.034][NI]voltage mode select: 0
 [01.037][NI]---rawnand_dump_gpio_nand end---
 [01.041][NE]nand_physic_init error -1
 [01.044]NB1 : nand phy init fail
 [01.047]Failed to probe nand flash
 try nand fail
 initcall sequence 7ff5bee0 failed at call 4a00e1fd (err=-1)
 ### ERROR ### Please RESET the board ###
 
 
 
 Thanks for all ..
 
 Waiting for recommendations ...
 
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