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mattlgroff

Atrix HD Partition Research

Aug 5th, 2012
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  1. Last Updated: 08/04/2012
  2.  
  3. PartitionBlock PartitionName
  4.  
  5. mccblk0p1 modem
  6. #modem - signed
  7. #Contain's the "equivalent" of the radio.img on OMAP4 devices.
  8. #^^^^ Reference: http://forum.xda-developers.com/showpost.php?p=27329503&postcount=6
  9. #I was able to "fastboot flash modem modem.bin" from my DD'd partition.
  10.  
  11. mmcblk0p2 sbl1
  12. #sbl1 - signed
  13. #I was able to "fastboot flash sbl1 sbl1.bin" from my DD'd partition.
  14.  
  15. mmcblk0p3 sbl2
  16. #sbl2 - signed
  17. #I was able to "fastboot flash sbl2 sbl2.bin" from my DD'd partition.
  18.  
  19. mmcblk0p4 sbl3
  20. #sbl3 - signed
  21. #I was able to "fastboot flash sbl3 sbl3.bin" from my DD'd partition.
  22.  
  23. mmcblk0p5 aboot
  24. #aboot - signed
  25. #According to Galaxy S III US partition research, this is the bootloader.
  26. #I was able to "fastboot flash aboot aboot.bin" from my DD'd partition.
  27.  
  28. mmcblk0p6 rpm
  29.  
  30. mmcblk0p7 tz
  31.  
  32. mmcblk0p8 utags
  33.  
  34. mmcblk0p9 padA
  35.  
  36. mmcblk0p10 sbl2Backup
  37.  
  38. mmcblk0p11 sbl3Backup
  39.  
  40. mmcblk0p12 abootBackup
  41.  
  42. mmcblk0p13 rpmBackup
  43.  
  44. mmcblk0p14 tzBackup
  45.  
  46. mmcblk0p15 utagsBackup
  47.  
  48. mmcblk0p16 padB
  49.  
  50. mmcblk0p17 modemst1
  51.  
  52. mmcblk0p18 modemst2
  53.  
  54. mmcblk0p19 mbl
  55. #mbl - ???
  56. #Extracted mbl from DD does not flash on my device. That's all I know so far.
  57.  
  58. mmcblk0p20 hob
  59.  
  60. mmcblk0p21 dhob
  61.  
  62. mmcblk0p22 persist
  63.  
  64. mmcblk0p23 ssd
  65.  
  66. mmcblk0p24 fsg
  67.  
  68. mmcblk0p25 sp
  69.  
  70. mmcblk0p26 misc
  71.  
  72. mmcblk0p27 pds
  73.  
  74. mmcblk0p28 cid
  75. #cid - signed. ***Unique to each and every device. Like a snowflake.***
  76. #Contains vital information on the device's IMEI and possibly bootloader the unlocking code. When replaced with a non-signed cid, or an erased one through DD command device becomes in a soft-bricked state.
  77. #It does not enter normally like on OMAP4 devices, when on BP Tools. Instead, some partial adb commands will come on sporadically and the device can be found in RSD Lite as well as Radio Comm.
  78. #Recovery and fastboot mode will still work fine is the cid is replaced with a non-signed or wiped, but device will not likely boot again.
  79. #Do NOT replace it with a non-signed or erase the cid partition.
  80. #
  81. #Extra comment: When on stock, non-wiped or modified cid, "fastboot oem unlock" is enabled. When otherwise, it is disabled.
  82.  
  83. mmcblk0p29 logo
  84. #logo - not-signed
  85. #Contain's the boot logo splashscreen. (What comes before the boot animation).
  86. #Can easily be replaced with "fastboot flash logo logo.bin"
  87.  
  88. mmcblk0p30 devtree
  89. #device_tree aka devtree - signed
  90.  
  91. mmcblk0p31 boot
  92. #boot - signed.
  93. #Contain's the device's kernel.
  94. #You can flash boot.img from any of the soft-ware updates in the same secure-version.
  95. #Not yet seen if the signature check is on boot, AND on flashing. Confirmed on flashing.
  96.  
  97. mmcblk0p32 recovery
  98. #recovery - signed
  99. #Contain's the device's recovery.
  100. #Not yet seen if the signature check is on boot, AND on flashing. Confirmed on flashing.
  101.  
  102. mmcblk0p33 kpan
  103. #kpan -
  104. #No information yet.
  105.  
  106. mmcblk0p34 tombstones
  107. #tombstones -
  108. #No information yet.
  109.  
  110. mmcblk0p35 cache
  111. #cache - extracted partition.
  112. #Do not flash a cache.img on a locked device.
  113.  
  114. mmcblk0p36 system
  115. #system - extracted partition.
  116. #Contain's the device's system.
  117. #Do not flash a system.img on a locked device.
  118.  
  119. mmcblk0p37 cdrom
  120. #cdrom - extracted partition.
  121. #Do not flash a cdrom on a locked device.
  122.  
  123. mmcblk0p38 userdata
  124. #userdata - extracted partition.
  125. #Do not flash a cache.img on a locked device.
  126.  
  127.  
  128. We can fill in some more information by looking at the research on the US Variants of the Samsung Galaxy S III. Their partition layout is very similar.
  129. Link to some places to start: http://forum.xda-developers.com/showpost.php?p=28731332&postcount=11
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