Even if you replace old cells with new ones, the battery will not function until the EEPROM is reset to "factory new" values. The Dangers of Using Cracked Software
Some BMS chips (like TI BQ20Zxx) enter “PF” mode due to cell imbalance. Rebuilding with balanced, new cells and using TI’s official software (for developers) can clear the flag – but this requires a genuine EV2300/EV2400 interface box (~$200). No crack is needed; the software is free, but the hardware is required. i--- Battery Eeprom Works Crack