yc_client/components/esp_ble_ota/examples/ble_ota/partitions.csv

# Name,   Type, SubType, Offset,  Size, Flags
# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap

nvs,      data, nvs,     ,        0x4000,
otadata,  data, ota,     ,        0x2000,
phy_init, data, phy,     ,        0x1000,
ota_0,    app,  ota_0,   ,        1500K,
ota_1,    app,  ota_1,   ,        1500K,