OTA 升级的 UPG 文档如下:
device_variant QC3003
# Set the upgrade version and previous version(s)
# that are compatible to upgrade from. The minor
# version can be '*' to act as a wildcard.
upgrade_version 2.1
compatible_upgrade 1.*
compatible_upgrade 2.*
# Set the ps config version and previous version(s)
# that are compatible to upgrade from (hex values)
ps_config_version 2
ps_prev_config_version 0
ps_prev_config_version 1
# Filesystem containing audio prompts
1 3 audio_prompts.xuv
# Filesystem containing application and related data
2 0 qcc3003.xuv