First, connect the phone to Chimera in Modem/ADB/Download mode and click on “Change to EUB mode”. The procedure will switch the phone to Download mode first then change it to EUB mode. Also, make sure your phone can be flashed in Download mode, if your phone cannot be flashed in Download mode this procedure won't work.
If the current firmware version of your phone is compatible it will boot into EUB mode instantly. If it is not compatible yet, you must run a Firmware Update procedure and flash it with a stock firmware that has the same or higher-bit version. The firmware can be the same as on your phone. After this, you have to wait 30 minutes and retry the procedure. You won’t have to do this for the same model and firmware version again.
Now, in EUB mode every procedure will be shown, and you can start repairing your device.
To be able to boot in normal mode you need to run a “Boot Repair” procedure using the Automatic firmware detection tab by pressing the start button.
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