[Alcatel OneTouch Pop C7 Questions & Answers] vleesevlons:
You are doing this at your own will.

You are responsible for any damages you cause to your device.

Always make backups before you do anything of this nature!

Steps to flash pro_info:

Download the latest version of SP Flash Tool.

Download the compressed pro_info file for your device.

Download and install a hex editor. (Optional)

Extract pro_info file from its compressed container into an empty folder.

Edit the pro_info file with the hex editor so the PID matches your phone's. (Optional)

Find a scatter file for your phone. (It's better if you use a scatter file you generated yourself.)

Open the scatter file with a text editor. (I'm using Notepad++)

Make sure that the pro_info section says "partition_name: PRO_INFO" and "file_name: pro_info" and "is_download: true" without the quotation marks.

Something like this:

- partition_index: SYS3
partition_name: PRO_INFO
file_name: pro_info
is_download: true
type: NONE
linear_start_addr: 0x1100000
physical_start_addr: 0x100000
partition_size: 0x300000
region: EMMC_USER
storage: HW_STORAGE_EMMC
boundary_check: true
is_reserved: false
operation_type: PROTECTED
reserve: 0x00

Place the scatter file in the same folder as your pro_info file.

Now extract SP Flash Tool if you haven't done that already.

Open it and locate the scatter file. Make sure everything is unchecked except for pro_info.

Press "Download Only". Turn your device off, remove and insert the battery then connect your device.

Wait for it to finish... Et voilà! You have flashed pro_info.

Errors:

In case you get "ERROR: S_NOT_ENOUGH_STORAGE_SPACE (1011)" take a look at this.

In case you get "PMT changed for the ROM; it must be downloaded", your device must be formatted:

Make a back up of your preloader. (Just in case; personally I used MTK Droid Tool, which was a tedious process.)

Make a full back up of your ROM with SP Flash Tool.

To do this you must perform the following:

Open up SP Flash Tool and go to the "Memory" tab.

Deselect everything except for "RAM test" and press "Start".

You will see a line with "EMMC_PART_USER Size =" followed by a hexadecimal number.

For example, "0x00000000ec000000". This number is the maximum storage space of your device. Copy it.

Now go to the "Readback" tab and press "Add".

Double click the new entry and just save it as "ROM_0".

A new window will open wherein you have to fill hexadecimal numbers.

Leave "Start Address" at zero, select everything in "Length" and paste the number you copied then hit OK.

Disconnect your device, remove and reinsert the battery, press Read Back then reconnect your device.

When it has finished you'll have a file that's called "ROM_0" with no file extension.

It's not flashable yet, to make it flashable you need the partition scheme!

Use MTK Droid Tool to convert the "ROM_0" file to be flashable by SP Flash Tool.

Turn your phone on and open MTK Droid Tool.

Go to the second tab called "root, backup, recovery" and press "To process file ROM_ from FlashTool"

Locate and select your "ROM_0" file. Don't let your device disconnect or it will interrupt the process.

In case it asks for CWM recovery or something, just press "No" and press "Cancel" on the new window that opens.

When it has finished you will have the flashable files in the MTK Droid Tool backup folder.

Open the folder in which you saved the flashable files and move pro_info to a safe location.

Copy your edited pro_info file into that folder.

In SP Flash Tool, go to the format tab, select Auto Format Flash and Format whole flash except Bootloader.

Press Start, turn your device off, remove and reinsert battery then reconnect your device.

After formatting your device, go to the download tab and locate the scatter file within the folder with the flashable files.

Now, disconnect your device, turn it off and remove battery then reconnect your device.

Wait till the flashing has ended... et voilà...

Now you have finally flashed pro_info!