[Upgrading, Modifying and Unlocking] sd_shadow:
Flashing Commands

Caution: The flash commands can vary from one Software Channel to another, and the number sparsechunk(s) can change with the android versions.

Notice: Suggested change in flash commands -07 March 2021

The correct flashing commands can be found in the .xml file in the unzipped firmware folder.

You should always use the flashfile.xml or service.xml to get the flash commands.

Several ways to do that.

Online FlashFile Converter

Write a Batch File

XML to Bat Converter Tool for Windows

More on the .xml files here.

Newer devices are now using super.img instead of a/b system.img - 09 Jan 2021

fastboot getvar max-sparse-size
fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash vbmeta vbmeta.img
fastboot flash radio radio.img
fastboot flash bluetooth BTFM.bin
fastboot flash dsp dspso.bin
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash dtbo dtbo.img
fastboot flash recovery recovery.img
fastboot flash super super.img_sparsechunk.0
fastboot flash super super.img_sparsechunk.1
fastboot flash super super.img_sparsechunk.2
fastboot flash super super.img_sparsechunk.3
fastboot flash super super.img_sparsechunk.4
fastboot flash super super.img_sparsechunk.5
fastboot flash super super.img_sparsechunk.6
fastboot flash super super.img_sparsechunk.7
fastboot erase carrier
fastboot erase ddr
fastboot oem fb_mode_clear
fastboot reboot

For older devices that only have one System partition flash commands will look like

fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot erase customize
fastboot erase clogo
fastboot oem fb_mode_clear
fastboot reboot

For Newer devices with a/b system partitions

fastboot getvar max-sparse-size
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash modem NON-HLOS.bin
fastboot flash fsg fsg.mbn
fastboot erase modemst1
fastboot erase modemst2
fastboot flash bluetooth BTFM.bin
fastboot flash dsp dspso.bin
fastboot flash boot boot.img
fastboot flash dtbo dtbo.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system
system.img_sparsechunk.4
fastboot flash system_b system_b.img_sparsechunk.0
fastboot flash system_b system_b.img_sparsechunk.1
fastboot flash vendor vendor.img_sparsechunk.0
fastboot flash vendor vendor.img_sparsechunk.1
fastboot flash oem oem.img
fastboot flash oem_b oem_other.img
fastboot erase carrier
fastboot erase ddr
fastboot flash logo logo.bin
fastboot reboot