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SD Recovery

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@aBER0724 aBER0724 released this 08 Jun 14:26
· 13 commits to master since this release
sd-recovery
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SD 卡恢复固件

本恢复固件用于修复 v0.3.3 固件无法通过 OTA 或 SD 卡更新 的问题。

如果您的设备满足以下条件，请使用此恢复固件：

  • 当前运行 v0.3.3
  • 设备 不支持通过 USB 刷写固件
  • 需要升级到更新版本，或切换到其他固件

在 v0.3.3 中，OTA 更新不可用和 SD 卡更新 不能升级到更新版本或切换到其他固件。
因此，不能直接从 v0.3.3 通过普通方式升级。

文件准备

请将以下两个文件放到 SD 卡根目录：

SD卡根目录/
├── firmware.bin         # SD 卡恢复固件，文件名必须固定
└── firmware-target.bin  # 您要安装的目标固件

重要要求

  • 恢复固件必须命名为：firmware.bin

  • 目标固件文件名必须：

    • 以 firmware- 或 firmware_ 开头
    • 以 .bin 结尾

  • SD 卡中只保留这两个固件文件，避免误刷

目标固件文件名示例：

firmware-target.bin
firmware-v1.3.0.bin
firmware_1.3.0.bin

恢复流程

  1. 将本 release 提供的 firmware.bin 放到 SD 卡根目录。
  2. 将您要安装的目标固件重命名正确格式, 例如 firmware-target.bin。
  3. 将 firmware-target.bin 也放到 SD 卡根目录。
  4. 在当前 v0.3.3 固件中，选择使用 SD 卡刷入 firmware.bin。
  5. 刷写成功后，重启设备。
  6. 恢复固件启动后，会自动查找 SD 卡中的目标固件，并完成刷写。

刷写完成后，设备将启动到目标固件。

已测试版本

本方法已验证可用于：

CrossPoint CJK v0.3.3 → CrossPoint v1.3.0

警告

刷写过程中请确保设备电量充足，并且不要关闭设备电源。

本恢复流程会尽量避免在新固件成功写入前覆盖当前可启动固件，任何固件更新都不是绝对无风险操作。请确认文件正确后再开始刷写。

SD Card Recovery Firmware

This recovery firmware is used to fix the issue where firmware v0.3.3 cannot be updated via OTA or SD card.

Use this recovery firmware if your device meets the following conditions:

  • Currently running v0.3.3
  • Does not support firmware flashing via USB
  • Needs to be upgraded to a newer version, or switched to another firmware

In v0.3.3, OTA updates are unavailable, and SD card updates cannot upgrade to a newer version or switch to another firmware.
Therefore, it is not possible to upgrade directly from v0.3.3 using the normal update methods.

File Preparation

Place the following two files in the root directory of the SD card:

SD card root directory/
├── firmware.bin         # SD card recovery firmware, filename must be fixed
└── firmware-target.bin  # Target firmware you want to install

Important Requirements

  • The recovery firmware must be named: firmware.bin

  • The target firmware filename must:

    • Start with firmware- or firmware_
    • End with .bin

  • Keep only these two firmware files on the SD card to avoid flashing the wrong file.

Examples of valid target firmware filenames:

firmware-target.bin
firmware-v1.3.0.bin
firmware_1.3.0.bin

Recovery Procedure

  1. Place the firmware.bin provided in this release in the root directory of the SD card.
  2. Rename the target firmware you want to install using the correct format, for example: firmware-target.bin.
  3. Place firmware-target.bin in the root directory of the SD card as well.
  4. In the current v0.3.3 firmware, choose to flash firmware.bin from the SD card.
  5. After flashing succeeds, restart the device.
  6. Once the recovery firmware starts, it will automatically search for the target firmware on the SD card and complete the flashing process.

After flashing is complete, the device will boot into the target firmware.

Tested Version

This method has been verified for:

CrossPoint CJK v0.3.3 → CrossPoint v1.3.0

Warning

Make sure the device has sufficient battery power during flashing, and do not power off the device.

This recovery process attempts to avoid overwriting the currently bootable firmware before the new firmware has been written successfully. However, no firmware update is completely risk-free. Please confirm that the files are correct before starting the flashing process.

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