S long as I kno,w if Android Xiaomisas stuck in Fastboot,t there are 2 possibilities. The first possibility of the Down volume button is being pressed continuously by itself, or the Android system has an error, so it needs to be re-flashed.
Thanks, only here: the first step I tried was to re-flash the Android. The Redmi 3S is stuck on the Fastboot logo, and here are the steps: Open the back cover and PCB cover of the Redmi 3S machine
- Lepas LCD connector and Baterai
- Find the location of the EDL test point on the Qualcomm Redmi 3S
- Connect the Redmi 3S to a computer with Qualcomm
- Run MiFlash Tool
- Click Refresh application and load the firmware for the Redmi 3S. Make sure the Redmi 3S Device has been detected and that Mi Flash Tool is connected to the correct COM port.
- Select Clean All and click Flash Options
- Wait for flashing
- Done
Pay attention to the photo below as a clue to the location of the Qualcomm Redmi 3S EDL Test Point.
In the Tutorial Guide How to Easily Flashthee Redmi 3S that has stuck constraints in the Fastboot Logo that you can try to practice. Good luck and good luck!