Here is a Celkon Q4G Tab 7 Stock ROM Firmware which can be used to load and flash stock firmware on any Celkon Q4G Tab 7 of this exact variant. Any MTK Flash tools can download and flash this Celkon Q4G Tab 7 flash file on your Q4G Tab 7 so long as that MTK Flash Tool supports MTK Scatter File.
Since most major software malfunctions on any MTK Android devices can only be corrected by flashing, this Q4G Tab 7 flash file, if properly used, can unbrick (debrick) your Q4G Tab 7 and also corrects any software issues your Celkon Q4G Tab 7 may currently have. Also, keep in mind that when you load stock firmware on your Celkon Q4G Tab 7 using any MTK flash tool, your Celkon Q4G Tab 7 will be reset to factory defaults settings and by that, definately, your UserData will be lost including contacts, messages and others.
Note: If your Q4G Tab 7 is already bricked and you want to unbrick it, you will need to pay closer attention to the tutorials contained below here.
Celkon Q4G Tab 7 Stock ROM Firmware Download Link(s)
1. Celkon Q4G Tab 7_0502L422A_U76T_QM715W18F35T40E8L8E_G130_IND
How to Flash Stock Firmware On Celkon Q4G Tab 7
1. Download your Celkon Q4G Tab 7 stock ROM firmware from the link above.
2. Extract the Celkon Q4G Tab 7 Firmware you downloaded from the link above onto a folder on your PC.
3. Download and install MTK android device drivers on your PC. You may skip this step if you have installed MTK drivers on your PC already otherwise, download MTK drivers here
4. Now, choose either of the tools listed below here to load the stock firmware on your Celkon Q4G Tab 7.
2. NCK Box
3. Miracle Box
See video tutorial here: How to Flash MTK Android Devices Video Tutorial
Note
1. Each of the tools listed above contained step by step guides with illustrated pictures on how to flash stock firmware on your Celkon Q4G Tab 7.
2. If your device is bricked already, I recommend that you use NCK Box or SP Flash. Both are the safest toolS for flashing MTK Android devices.
3. If you require any further assistance, simply drop your comment detailing the issue(s) and I shall help you revive your Celkon Q4G Tab 7, if need be.