Affichage des articles dont le libellé est MT6592M. Afficher tous les articles
Affichage des articles dont le libellé est MT6592M. Afficher tous les articles

samedi 30 janvier 2016

Issue making preloader.bin backup/dump of MT6592M



Good PM.

i have an MT6592M device with Android 5.1 kernel 3.10.72. im having problems making a full backup or dump of my rom. i have created readback from sp flash tools but its not creating preloader.bin. i makes the other necessary files when processed in mtkdroidtools > "to process the file ROM_ from spflashtool" option but there is no preloader.bin. the files seems to work fine since i tried it couple of times reflashing to my device. i tried to root my phone, checked that its been properly rooted, installed busybox and use mtkdroidtool's backup function and it fails at making preloader_and_dsp and wont backup the partitions aside from /system and /nvram, error msg says : "ERROR : Zero file, no space left on device!" and looking for answers there seems to be no method that worked in my case.

so i use readback to manually dump the preloader.bin address and using hex editor to view, it doesn't seem right since the header is wrong and its starting with EMMC_BOOT. i don't think i can reflash this preloader.bin file in case i will have issue with my device, right?

so, i need help if there are other ways to backup mediatek roms, or dump only the preloader.bin and make it flashable with spflashtools or anyone who can clean-up the dump i made and make it right for flashing back.

thanks.

here's the partition info as reported by mtkdroidtools and attached is scatterfile:

Quote:









23/01/16 10:48:29 Part_Name Size StartAddr Type MapTo Region
23/01/16 10:48:29 preloader 0x0000000000040000 0x0000000000000000 2 /dev/misc-sd BOOT_1
23/01/16 10:48:29 mbr 0x0000000000080000 0x0000000000000000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 ebr1 0x0000000000080000 0x0000000000080000 2 /dev/block/mmcblk0p1 USER
23/01/16 10:48:29 pro_info 0x0000000000300000 0x0000000000100000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 nvram 0x0000000000500000 0x0000000000400000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 protect_f 0x0000000000a00000 0x0000000000900000 2 /dev/block/mmcblk0p2 USER
23/01/16 10:48:29 protect_s 0x0000000000a00000 0x0000000001300000 2 /dev/block/mmcblk0p3 USER
23/01/16 10:48:29 seccfg 0x0000000000040000 0x0000000001d00000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 uboot 0x0000000000060000 0x0000000001d40000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 bootimg 0x0000000000a00000 0x0000000001da0000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 recovery 0x0000000000a00000 0x00000000027a0000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 sec_ro 0x0000000000600000 0x00000000031a0000 2 /dev/block/mmcblk0p4 USER
23/01/16 10:48:29 misc 0x0000000000080000 0x00000000037a0000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 logo 0x0000000000800000 0x0000000003820000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 ebr2 0x0000000000080000 0x0000000004020000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 frp 0x0000000000100000 0x00000000040a0000 2 /dev/block/mmcblk0p5 USER
23/01/16 10:48:29 expdb 0x0000000000e60000 0x00000000041a0000 2 /dev/block/mmcblk0 USER
23/01/16 10:48:29 android 0x0000000060000000 0x0000000005000000 2 /dev/block/mmcblk0p6 USER
23/01/16 10:48:29 cache 0x000000001a800000 0x0000000065000000 2 /dev/block/mmcblk0p7 USER
23/01/16 10:48:29 usrdata 0x0000000151300000 0x000000007f800000 2 /dev/block/mmcblk0p8 USER
23/01/16 10:48:29 bmtpool 0x0000000001500000 0x00000000ffff00a8 2 /dev/block/mmcblk0 USER









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