If you notice any software malfunctions with your Huawei Ascend G620s L01 android device, you're most likely required to download and flash stock ROM firmware on your Ascend G620s L01 to permanently correct the software errors you noticed on your Huawei Ascend G620s L01. And when you load stock firmware on your Huawei Ascend G620s L01 using any Qualcomm flash tool, your Huawei Ascend G620s L01 will be reset to factory defaults settings and by that, definately, your UserData will be lost including contacts, messages and others.
If your device has been bricked and want to unbrick it, you will need to pay closer attention to the tutorials contained below here.
Huawei Ascend G620s L01 Stock ROM Firmware Download Link(s)
1. Huawei Ascend G620s L01_V100R001C00B246
How to Flash Stock Firmware On Huawei Ascend G620s L01
1. Download your Huawei Ascend G620s L01 stock ROM firmware from the link above.
2. Extract the Huawei Ascend G620s L01 Firmware you downloaded from the link above onto a folder on your PC.
3. Download and install Qualcomm android device drivers on your PC. You may skip this step if you have installed Qualcomm drivers on your PC already otherwise, download Qualcomm drivers here
4. Now, choose either of the tools listed below here to load the stock firmware on your Huawei Ascend G620s L01.
Note
1. Each of the tools listed above contained step by step guides with illustrated pictures on how to flash stock firmware on your Huawei Ascend G620s L01.
2. If your device is bricked already, I recommend that you use Tool Studio eMMC Download Tool or QPST QFIL.
3. If you require any further assistance, simply drop your comment detailing the issue(s) and I shall help you revive your Huawei Ascend G620s L01, if need be.