If you notice any software malfunctions with your YXTel C6 (New Edition) android device, you're most likely required to download and flash stock ROM firmware on your C6 (New Edition) to permanently correct the software errors you noticed on your YXTel C6 (New Edition). And when you load stock firmware on your YXTel C6 (New Edition) using any Qualcomm flash tool, your YXTel C6 (New Edition) 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.
YXTel C6 (New Edition) Stock ROM Firmware Download Link(s)
1. YXTel C6 (New Edition)_6260_SF_GD25LQ128
How to Flash Stock Firmware On YXTel C6 (New Edition)
1. Download your YXTel C6 (New Edition) stock ROM firmware from the link above.
2. Extract the YXTel C6 (New Edition) 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 YXTel C6 (New Edition).
Note
1. Each of the tools listed above contained step by step guides with illustrated pictures on how to flash stock firmware on your YXTel C6 (New Edition).
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 YXTel C6 (New Edition), if need be.