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Zero/install/eMMC erase

< Zero‎ | install
Revision as of 03:23, 17 December 2021 by RadxaYuntian (Talk | contribs)

    Radxa Zero >  Installation >  Erase eMMC

How to erase eMMC

This guide describes how to erase bootloader on Radxa Zero's eMMC. This can be used to ensure Radxa Zero will boot from microSD card, or clear seriously corrupted eMMC (for example, getting ** Invalid partition 1 ** error in U-Boot message) that you cannot enable USB mass storage mode with rz-udick-loader.bin.

Requirement

  • Radxa Zero
  • A PC/laptop running Windows, Linux, or macOS
  • USB A to C cable or C to C cable, depending on your host

Windows

First, follow maskrom guide to setup and load factory-loader.img:

Rz-usb-helper-fastboot.png

You can then click Erase button to erase the eMMC.

Rz-usb-helper-erase.png

Linux & macOS

First, follow maskrom guide to setup and load rz-fastboot-loader.bin.

You are now booted into fastboot mode. Check it by running lsusb:

   Bus 001 Device 051: ID 18d1:0d02 Google Inc. Celkon A88

Now execute the following commands to wipe bootloader from eMMC:

macOS:

fastboot erase 0
fastboot reboot

Linux:

sudo fastboot erase 0
sudo fastboot reboot