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It sounds like your phone is in a boot loop and you're unable to get it to boot into recovery mode. This can be a frustrating problem, but there are a few things you can try to fix it.
***Method 1: Force reboot***
The first thing you can try is to force reboot your phone. This will usually clear any temporary glitches that may be causing the boot loop. To force reboot your phone, follow these steps:
# Press and hold the power button for about 10 seconds.
# Your phone will power off and then power back on.
Once your phone has rebooted, try to boot into recovery mode. If you can boot into recovery mode, you can then try to flash the ROM again.
***Method 2: Flash the ROM using a different tool***
If you can't boot into recovery mode, you can try flashing the ROM using a different tool. There are a number of different tools available, so you'll need to find one that is compatible with your phone. Once you have found a tool, follow the instructions to flash the ROM.
***Method 3: Take your phone to a repair shop***
If you've tried the above methods and you're still having problems, you may need to take your phone to a repair shop. A repair shop will be able to diagnose the problem and fix it for you.
I hope this helps!