Title: SD Card Initialization Timeout Issue: Lenovo thinkplus platinum Pro 64GB V30 A3 U3

Description:

I'm experiencing an initialization timeout issue with a Lenovo thinkplus platinum Pro 64GB V30 A3 U3 SD card on MicroPython version 1.21.0 on my device. When I attempt to initialize the SD card, I encounter the following error message:

SD card initialization timeout error: Error: Timeout occurred during SD card initialization.

Steps to reproduce:

1. Insert the Lenovo thinkplus platinum Pro 64GB V30 A3 U3 SD card into the device's SD card slot.
2. Execute the SD card initialization code in the MicroPython environment.

import os, sdcard, machine


def sdtest():
    spi = machine.SPI(1, baudrate=1000000, sck=machine.Pin(10), mosi=machine.Pin(11), miso=machine.Pin(12))
    spi.init()  # Ensure right baudrate
    sd = sdcard.SDCard(spi, machine.Pin(13, machine.Pin.OUT))  # Compatible with PCB
    vfs = os.VfsFat(sd)
    os.mount(vfs, "/fc")
    print("Filesystem check")
    print(os.listdir("/fc"))

    line = "abcdefghijklmnopqrstuvwxyz\n"
    lines = line * 200  # 5400 chars
    short = "1234567890\n"

    fn = "/fc/rats.txt"
    print()
    print("Multiple block read/write")
    with open(fn, "w") as f:
        n = f.write(lines)
        print(n, "bytes written")
        n = f.write(short)
        print(n, "bytes written")
        n = f.write(lines)
        print(n, "bytes written")

    with open(fn, "r") as f:
        result1 = f.read()
        print(len(result1), "bytes read")

    fn = "/fc/rats1.txt"
    print()
    print("Single block read/write")
    with open(fn, "w") as f:
        n = f.write(short)  # one block
        print(n, "bytes written")

    with open(fn, "r") as f:
        result2 = f.read()
        print(len(result2), "bytes read")

    os.umount("/fc")

    print()
    print("Verifying data read back")
    success = True
    if result1 == "".join((lines, short, lines)):
        print("Large file Pass")
    else:
        print("Large file Fail")
        success = False
    if result2 == short:
        print("Small file Pass")
    else:
        print("Small file Fail")
        success = False
    print()
    print("Tests", "passed" if success else "failed")


sdtest()
The SD card initialization timeout error occurs after executing the above code.
Expected behavior:

I expect the SD card to initialize successfully, allowing me to access files on the SD card.

Attempts made:

I’ve checked the physical connection and confirmed that the SD card is inserted correctly.
I attempted to upgrade MicroPython to the latest version, but the issue still persists.
The memory card is formatted with the FAT32 file system.
I have searched through MicroPython documentation and forums but have not found a similar issue.
Environment:

Device model: Lenovo thinkplus platinum Pro
SD card model: 64GB V30 A3 U3
MicroPython version: 1.21.0
Operating system: (if relevant)
Expected resolution time:

If possible, please address this issue as soon as possible as the SD card is crucial for my project.

Thank you for your kind assistance!