Here’s a professional write-up for troubleshooting and resolving using Miracle Box :
Connect the device while holding the "Boot Key" (typically Volume Down or Home). 4. Address Crack/Software Bugs bootloader error id 1 miracle box solution
The "Bootloader Error ID: 1" in Miracle Box is a common communication failure encountered by mobile technicians, primarily during flashing, formatting, or unlocking operations on devices with Spreadtrum (SPD) MediaTek (MTK) primarily during flashing
Select the "Bootloader Repair" option and click on "Start." bootloader error id 1 miracle box solution
For further assistance, you can find detailed discussions on Hovatek or video guides on YouTube that specifically address SPD CPU bootload errors.