Exactly why everyone should have their own full backup made with SP Flash Tool. You can't use that from another phone, even if it's from the same manufacturer and model. You must note that some files like NVRAM are unit specific, they contain IMEI, SN and GSM calibration data. This SP Flash Tool is must have the backup option as this is the only way for You to make a complete backup of all partitions and block devices in your phone. If you are using format tools, don't ever format the preloader area. So, whatever you are doing, keep in mind that you must always have preloader.bin in your phone. If you don't have preloader.bin in your phone memory, you may have a hard brick that is unable to revive unless use jtag or board remains dead.
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