Click the Search button and wait for the tool to generate the bootloader code. Save the bootloader code in a Notepad file and disconnect your phone from the PC. Extract the Huawei Unlock Bootloader.zip file and boot the phone into Fastboot mode. Double-click the Unlock-Bootloader.bat file and follow the prompts to enter the bootloader unlock code. Il root per Huawei Ascend G620s seguirà tre fasi, cioè: Sblocco Bootloader, Installazione di una Clockworkmod e installazione del file superuser da recovery per avere il root definitivo. Bootloader unlock code read by software is the fastest way to access bootloader on Huawei ASCEND G620S mobile phone to prepair the device for rooting and ROM change. Software also provider a range of service options for your Huawei ASCEND G620S such as IMEI / MEID repair, SN change, MAC and BT address repair, FRP bypass / unlocking, network

read the bootloader code using pack7 / flycaptain module or ask it from huawei; once you received the code start latest pack5 sw version; go imei unlock / diag tools tab; enter the received bootloader unlock code (16 digits) press the boot unlock button (while phone is connected on fast boot mode)

STEP 4: Unlock Bootloader via Fastboot Command. You will now get a confirmation message on your device. Use the Volume keys to select Unlock the Bootloader option, and the Power key to confirm your decision. Your device will now reboot to Fastboot Mode, but this time, the Device State will be Unlocked.
You don't need root to do the bootloader unlock as far as I know. It gets about one third of the way through step 1, and then skips onto Step 2/2, with the bar filled about two-thirds, and a yellow triangle with an exclamation mark. Underneath it says "Update failed". On 7/18/2013 at 7:25 AM, Salamin said:
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huawei ascend g620s unlock bootloader