Upgrade Firmware

Tutorial Flashing Asus 4S T00Q Via CMD

Tutorial Flashing Asus Zenfone 4S T00Q Via Adb cmd windows. because rooting error, the internal memory is full, to result in a boot loop. worse can be up Hard brick total dead . but as long as they can enter into Droidboot by pressing (Power + Volume up) can still be done flashing the firmware upgrade. As for how to flashing zenfone 4s via ADB can follow the instructions below

• Tool Before Flash:

1. Download ADB fastboot here 
2. Download Intel USB Driver here 
3. Download System.img.gz here  (832 MB)
4. Download Boot.img : here

Tutorial Flash Asus 4S T00Q:

1. Download and Install Intel USB Driver
2. Download and Ekstrack ADB fastboot
3. System.img.gz (don't extrack) with Boot.img to folder ADB
4. Turn Off Zenfone 4S ( 4S )  go to Droidboot with (Power Volume + up)
5. Connecting zenfone 4s On your Computer
6. In Folder ADB, select" Open Commond Windows Here "
7. On CMD write :

typing on CMD

fastboot erase cache

(enter)

fastboot erase userdata

(enter)

fastboot erase system

(enter)

fastboot reboot-bootloader

(enter) wait Droid boot vision show up again,  next

fastboot flash system system.img.gz

(enter)
wait a moment

fastboot flash boot boot.img
(enter)
after Complete,

Fastboot reboot-bootloader

(enter)

last:

fastboot reboot

(Enter) flashing Finish

• Zenfone 4s will restart with new firmware. Good Lucky