This is a step by step guide on how to generate Checksum.ini for a Mediatek (MTK) based stock rom / firmware. Checksum.ini is contained in some firmware and serves to verify the integrity (hasn't been tampered with) of the firmware.

Why would I need a checksum.ini file?

Depending on how you got the rom you intend to flash and the tool you intend to use, the ROM may not contain a checksum file and some tools such as SP multidownload tool require one in order to begin flashing.

Requirements

• CheckSum_Gen.zip 
• Windows PC

How to Generate checksum.ini for an MTK ROM / firmware

Follow the steps below to generate checksum.ini for an MTK scatter file rom

1. Extract the content of CheckSum_Gen.zip into the folder containing the scatter file rom 
   
    
   
   
2. Launch CheckSum_Gen.exe and wait while the tool generates the checksum file
   
    
   
   
3. Once successful, you'll get the success message "Check Sum Write to ini File Finished"
   
    
   
   
4. Press any key to exit the tool and the checksum.ini will be placed in the same folder

Important Notice

• It might take a while to complete depending on the file size of certain files such as cache, userdata and system.img so be patient
• For tools like SP flash tool, you can simply remove the checksum file if you run into checksum errors