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====Upgrade Jetson Board using Host PC====
 
====Upgrade Jetson Board using Host PC====
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This section provides the second method of upgrading the system.
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This method has the same goal as the method in the previous section, and one of the two can be chosen.
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Specifically, for TX2 systems, only the methods in this section can be taken to upgrade.
    
=====Burn the standard Image=====
 
=====Burn the standard Image=====
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<code>export TOP_DIR=<absolute path to top dir accroding to your jetpack version and board name;for example /home/xumm/nvidia/nvidia_sdk/JetPack_4.5_Linux_JETSON_XAVIER_NX_DEVKIT/></code>
 
<code>export TOP_DIR=<absolute path to top dir accroding to your jetpack version and board name;for example /home/xumm/nvidia/nvidia_sdk/JetPack_4.5_Linux_JETSON_XAVIER_NX_DEVKIT/></code>
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export L4T_DIR=$TOP_DIR/Linux_for_Tegra
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<code>export L4T_DIR=$TOP_DIR/Linux_for_Tegra</code>
    
*Build default image, flashing to Jetson Board, prepare L4T environment
 
*Build default image, flashing to Jetson Board, prepare L4T environment
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- Nano
 
- Nano
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<code><s>sudo ./flash.sh jetson-qspi-sd mmcblk0p1</s></code>
      
<code>sudo ./flash.sh jetson-nano-devkit mmcblk0p1</code>
 
<code>sudo ./flash.sh jetson-nano-devkit mmcblk0p1</code>

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