Solved: Why there is no link for 438 update on official site for max pro m1, while For max pro m2 there is link on official site - 330021
flashing asus zenfone 4 max pro ( ASUS X00ID - ZC554KL) is very simple- install usb driver- extract firmware - enter phone to fastboot mode- run : flasha
Step 3: Long press with" Power " key and " Volume up " key together for at least 5 seconds to enter Recovery Mode. Step 4: Please use"Volume Down/Up" key to select menu on the screen. Choose"Recovery mode", and then press "Power" key to enter the selection. Step 5: Wait a few seconds and you will see this on the screen. Download and extract the Asus Zenfone 4 Max ZC520KL stock firmware package on the computer. After extracting the package, you will be able to get the Firmware File, Flash Tool, Driver, and How-to Flash Guide. Install the provided USB Driver on the computer (if the USB Driver is already installed, then SKIP this step).
Steps of Update: 1. Check software version of your device**. 2. Download device software and Update SOP (From "Manual" Item) 3. Only apply to same SKU update, Example: WW->WW, CN->CN, TW->TW. 4. Software update cannot transfer the software SKU and downgrade the software version.
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firmware asus zenfone 4 max