It looks like you’re requesting a review of something called “Htrc T240 Duo Firmware Update BETTER” — possibly a modified or improved version of the original firmware for the HTRC T240 Duo charger.
Updating the firmware of your Htrc T240 Duo device is a relatively straightforward process. Here's a step-by-step guide: Htrc T240 Duo Firmware Update BETTER
If you want to attempt an update to fix bugs like incorrect cell count identification or storage voltage issues: Visit the Official Portal : Check the Shenzhen Haitan Technology Software Download page for any new releases. Use a Data USB Cable It looks like you’re requesting a review of
Select File: In the update tool, click "Select" and locate the downloaded .bin firmware file. Htrc T240 Duo Firmware Update BETTER