You can quickly flash stock ROM or custom ROM Or root your Andriod phone using smartphone flash tools (sp Flash Tool) on windows computer.
Your Android Smartphone must be at least 40-50 percent of Battery to perform the Flashing Process.
Flash Stock ROM/ Root Andriod Phone
Step by step guide:-
Step 1: Download and install the Correct Android USB Driver on your PC. Skip this if USB drivers are installed already.
Step 2: Turn Off your Android Smartphone and take out the Battery (if it is removable).
Step 3: Download the Stock ROM or Custom ROM that you want to Flash on your Android Smartphone and extract it on your computer harddisk.
If you are rooting then download and extract TWRP.zip, Ensure you downloaded the right TWRP for your device to avoid any problem
Step 3: Download the Stock ROM / Custom ROM from the website which you have decided to Flash on Android Smartphone & extract it on the computer.
if rooting, download and extract the TWRP.zip, and Ensure that you have download the right TWRP file which meant for your device to any problem.
Step 4: Download and Extract the Smartphone Flash Tool on Your Computer harddisk. After Extracting you will see some files
Step 5: Now Open Flash_tool.exe which you will find in your extracted files
Step 6: when Smart Phone Flash Tool is opened, click on the Download Tab.
Step 7: On the Download Tab, click on the scatter-loading button.
Step 8: Now, Search for the Scatter File (you will find this file in the Stock ROM folder of your hard disk).
If rooting, you will find the file in TWRP folder.
Step 9: Now, Press on the Download Button to start the Flashing Process.
Step 10: Connect your Smartphone to the Computer by USB Cable (with no battery- if it is removable). After connecting the mobile to the computer Press Volume Down or Volume Up key, this will help your computer to easily detect your smartphone.
Step 11: Once Flashing is completed, a Green circle will show.
Step 12: End the Smart Phone Flash Tool on your computer and disconnect your Android mobile from the computer.
Note: flashing stock or custom ROM on any Andriod phone ends in step 13.
If you want to root your Andriod phone, ensure you continue by moving over to step 13.
Step 13: Download the Magisk.zip OR the SuperSU.zip, After which move the mentioned into the memory card of your phone.
Turn off your phone, and press volume key + button and power button at the same time to boot into TWRP recovery mode, then locate the Magisk.zip or SuperSU.zip then tap Flash. Wait for a lil seconds or minutes as the situation is, and you will see a message on your screen saying it was successful.
Congratulations, Now your Android mobile phone is fully running on your desired ROM OR you’ve successfully rooted your phone.