Samsung galaxy tab 4 10.1 sm-t530nu notes

#Get and compile Heimdell with line change
#BridgeManager.cpp contains:
#success = ReceivePacket(receiveFilePartPacket, receiveEmptyTransferFlags);
#but it makes wrong timeout and lost flags.
#I use this one:
#success = ReceivePacket(receiveFilePartPacket, kDefaultTimeoutReceive, #receiveEmptyTransferFlags);
#see notes: http://pastebin.com/eB8Dhgke


#Get recovery img from here:
#http://forum.xda-developers.com/tab-4/orig-development/clockworkmod-6-0-5-0-galaxy-tab-4-10-1-t2830683
#http://forum.xda-developers.com/attachment.php?attachmentid=2873786&d=1406554277

#reboot into bootloader and flash recovery
#!!!!!!upon reboot hold down Vol Down + Menu + Power
sudo adb reboot bootloader
sudo heimdall flash --RECOVERY recovery.img
sudo adb reboot recovery
#once in recovery adb shell
sudo adb shell

###############note#############
#           USE PARTED TO LEARN WHICH PARTITION IS WHAT
#parted /dev/block/mmcblk0
#(parted) print
###############note#############
#mount system, cache and data because clockworkmod can’t
#mount sdcard - you might need to rm /sdcard folder
#rm -fr /sdcard && mkdir /sdcard
mount /dev/block/mmcblk1p1 /sdcard
mount /dev/block/mmcblk0p23 /system
mount /dev/block/mmcblk0p24 /cache
mount /dev/block/mmcblk0p26 /data









###############keeping CWM############
#backup parition
#rm -fr /sdcard && mkdir /sdcard
mount /dev/block/mmcblk1p1 /sdcard
mkdir /sdcard/tab4
dd if=/dev/block/mmcblk0p15 of=/sdcard/tab4/stock-recovery.img
dd if=/sdcard/recovery.img of=/dev/block/mmcblk0p15
#to make it last through reboots
mount /dev/block/mmcblk0p23 /system
mv /system/recovery-from-boot.p /system/recovery-from-boot.p

###################root device##################
#in clock work mod
mount /dev/block/mmcblk0p23 /system
cd /system/bin
cp sh su
#setuid to su will always run as root
chown root:root su
chmod 4755 su

################busybox############
#on desktop
wget http://benno.id.au/android/busybox
sudo adb push busybox /system/bin/
sudo adb shell


#link to busybox on device
cd /system/bin
for i in $(busybox --list);do echo "linking $i...";ln -s busybox $i;done

################editing startup scripts###################
#as root (in recovery maybe)
mount /dev/block/mmcblk0p23 /system
echo “/etc/myboot.sh” >> /system/etc/init.sec.boot.sh
/system/bin/busybox vi /system/etc/myboot.sh