[MeMO Pad 7 Q&A, Help & Troubleshooting] scorpio16v:
Output after trying the T4 trigger on ME572c Android 5.0.1 firmware.

***********************************************************************
FASTBOOT TETHERED RECOVERY LAUNCHER 05-16-2015-PTR
***********************************************************************

=======================================================================

DEVICE STATUS: FASTBOOT-ONLINE

DEVICE INFORMATION: 69A05AF1 fastboot

=======================================================================

copy needed files to our device
target reported max download size of 536870912 bytes
sending '/tmp/recovery.zip' (3477 KB)...
OKAY [ 2.095s]
writing '/tmp/recovery.zip'...
FAILED (remote: flash_cmds error!
)
finished. total time: 4.688s
target reported max download size of 536870912 bytes
sending '/tmp/recovery.launcher' (400 KB)...
OKAY [ 1.963s]
writing '/tmp/recovery.launcher'...
FAILED (remote: flash_cmds error!
)
finished. total time: 4.541s
we need to stop logcat before replacing it
...
(bootloader) Start partitioning

OKAY [ 2.594s]
finished. total time: 2.594s
target reported max download size of 536870912 bytes
sending '/system/bin/logcat' (178 KB)...
OKAY [ 1.953s]
writing '/system/bin/logcat'...
FAILED (remote: flash_cmds error!
)
finished. total time: 4.547s

issue fastboot oem "stop_partitioning" command to start cwm recovery:
...
(bootloader) Stop partitioning

OKAY [ 2.578s]
finished. total time: 2.578s

Don't know if helpfull (fstab)

/dev/block/by-name/system	/system	ext4	ro,noatime	wait
/dev/block/by-name/cache	/cache	ext4	nosuid,nodev,noatime,barrier=1,data=ordered	wait,check

/dev/block/by-name/data	/data	ext4	nosuid,nodev,noatime,discard,barrier=1,data=ordered,noauto_da_alloc	wait,check,encryptable=/factory/userdata_footer

/dev/block/by-name/firmware	/firmware	ext4	ro,nosuid,nodev,noatime,barrier=1,data=ordered,context=u:object_r:firmware_file:s0	wait

/dev/block/by-name/ADF	/ADF	ext4	nosuid,nodev,noatime,barrier=1,data=ordered	wait

/dev/block/by-name/config	/config	ext4	nosuid,nodev,noatime,barrier=1,data=ordered	wait

/dev/block/by-name/factory	/factory	ext4	nosuid,nodev,noatime,barrier=1,data=ordered	wait

*/block/mmcblk1	auto	vfat	None	wait,voldmanaged=MicroSD:auto,noemulatedsd

*/block/sd	auto	vfat	None	wait,voldmanaged=USBdisk1:auto

/dev/block/zram0	none	swap	defaults

partition_table=gpt
create -z /dev/block/mmcblk0
create /dev/block/mmcblk0
boot -p /dev/block/mmcblk0
reload /dev/block/mmcblk0
add -b 40 -s 32768 -t data -u 80868086-8086-8086-8086-000000000100 -l boot -T 3 -P 15 /dev/block/mmcblk0
add -b 32808 -s 32768 -t data -u 80868086-8086-8086-8086-000000000101 -l recovery -T 3 -P 14 /dev/block/mmcblk0
add -b 65576 -s 32768 -t data -u 80868086-8086-8086-8086-000000000102 -l fastboot -T 3 -P 13 /dev/block/mmcblk0
add -b 98344 -s 344064 -t data -u 80868086-8086-8086-8086-000000000000 -l reserved -T 0 -P 0 /dev/block/mmcblk0
add -b 442408 -s 8192 -t data -u 80868086-8086-8086-8086-000000000103 -l splashscreen -T 3 -P 12 /dev/block/mmcblk0
add -b 450600 -s 32768 -t data -u 80868086-8086-8086-8086-000000000104 -l boot-one-shot -T 3 -P 11 /dev/block/mmcblk0
add -b 483368 -s 32768 -t data -u 80868086-8086-8086-8086-000000000105 -l ramdump -T 3 -P 11 /dev/block/mmcblk0
add -b 516136 -s 4096 -t data -u 80868086-8086-8086-8086-000000000106 -l silentlake -T 3 -P 10 /dev/block/mmcblk0
add -b 520232 -s 2048 -t data -u 80868086-8086-8086-8086-000000000107 -l userkeystore -T 3 -P 10 /dev/block/mmcblk0
add -b 522280 -s 2048 -t data -u 80868086-8086-8086-8086-000000000108 -l persistent -T 3 -P 10 /dev/block/mmcblk0
add -b 524328 -s 65536 -t data -u 80868086-8086-8086-8086-000000000001 -l panic -T 0 -P 0 /dev/block/mmcblk0
add -b 589864 -s 16384 -t data -u 80868086-8086-8086-8086-000000000002 -l factory -T 0 -P 0 /dev/block/mmcblk0
add -b 606248 -s 8192 -t data -u 80868086-8086-8086-8086-000000000003 -l misc -T 0 -P 0 /dev/block/mmcblk0
add -b 614440 -s 65536 -t data -u 80868086-8086-8086-8086-000000000004 -l config -T 0 -P 0 /dev/block/mmcblk0
add -b 679976 -s 65536 -t data -u 80868086-8086-8086-8086-000000000005 -l ADF -T 0 -P 0 /dev/block/mmcblk0
add -b 745512 -s 65536 -t data -u 80868086-8086-8086-8086-000000000006 -l firmware -T 0 -P 0 /dev/block/mmcblk0
add -b 811048 -s 1843200 -t data -u 80868086-8086-8086-8086-000000000007 -l cache -T 0 -P 0 /dev/block/mmcblk0
add -b 2654248 -s 819200 -t data -u 80868086-8086-8086-8086-000000000008 -l APD -T 0 -P 0 /dev/block/mmcblk0
add -b 3473448 -s 3989504 -t data -u 80868086-8086-8086-8086-000000000009 -l system -T 0 -P 0 /dev/block/mmcblk0
add -b 7462952 -s $calc($lba_end-16384) -t data -u 80868086-8086-8086-8086-00000000000a -l data -T 0 -P 0 /dev/block/mmcblk0
reload /dev/block/mmcblk0