No. Most MTK devices require the battery to be connected for power delivery during flashing.
Knowing your hardware ensures you use the correct version of the DA file for the chipset. Specification Chipset MediaTek MT6739 (Quad-Core 1.5GHz) OS Android 8.1 Oreo (Go Edition) RAM/Storage 2GB RAM / 16GB Storage Display 5.45" IPS (720 x 1440) Battery How to Use the DA File Lava Iris 88 Da File
A Download Agent (DA) file acts as a bridge between your PC and the phone's hardware. While standard MediaTek devices can often be flashed using a generic MTK_AllInOne_DA.bin , Secure Boot devices like the Lava Iris 88 require a custom DA file to: Specification Chipset MediaTek MT6739 (Quad-Core 1
Used to unlock devices stuck on the Google Account verification screen after a factory reset. Flashing Stock Firmware: Lava Iris 88 Da File