[Android Q&A, Help & Troubleshooting] supa9274:
I have been trying to downgrade my android 2.3.4 Mytouch 4g

using the following guide:\

http://xdaforums.com/showthread.php?t=1178912

but i get an message sayin misc version permission denied.

Here is my command prompt:

C:\android-sdk\platform-tools>adb shell cat /dev/msm_rotator

/dev/msm_rotator: invalid length

C:\android-sdk\platform-tools>adb push fre3vo /data/local/tmp

push: fre3vo/__MACOSX/._fre3vo -> /data/local/tmp/__MACOSX/._fre3vo

push: fre3vo/fre3vo -> /data/local/tmp/fre3vo

2 files pushed. 0 files skipped.

305 KB/s (10025 bytes in 0.032s)

C:\android-sdk\platform-tools>adb shell

$ chmod 777 /data/local/tmp/fre3vo

chmod 777 /data/local/tmp/fre3vo

$ /data/local/tmp/fre3vo -debug -start FAA90000 -end FFFFFFFF

/data/local/tmp/fre3vo -debug -start FAA90000 -end FFFFFFFF

fre3vo by #teamwin

Please wait...

Attempting to modify ro.secure property...

fb_fix_screeninfo:

id: msmfb

smem_start: 802160640

smem_len: 3145728

type: 0

type_aux: 0

visual: 2

xpanstep: 0

ypanstep: 1

line_length: 1920

mmio_start: 0

accel: 0

fb_var_screeninfo:

xres: 480

yres: 800

xres_virtual: 480

yres_virtual: 1600

xoffset: 0

yoffset: 800

bits_per_pixel: 32

activate: 16

height: 80

width: 48

rotate: 0

grayscale: 0

nonstd: 0

accel_flags: 0

pixclock: 0

left_margin: 0

right_margin: 0

upper_margin: 0

lower_margin: 0

hsync_len: 0

vsync_len: 0

sync: 0

vmode: 0

Buffer offset: 00000000

Buffer size: 8192

Scanning region faa90000...

Scanning region fab80000...

Scanning region fac70000...

Scanning region fad60000...

Scanning region fae50000...

Scanning region faf40000...

Scanning region fb030000...

Scanning region fb120000...

Scanning region fb210000...

Scanning region fb300000...

Scanning region fb3f0000...

Scanning region fb4e0000...

Scanning region fb5d0000...

Scanning region fb6c0000...

Scanning region fb7b0000...

Scanning region fb8a0000...

Scanning region fb990000...

Scanning region fba80000...

Scanning region fbb70000...

Potential exploit area found at address fbb80e00:200.

Exploiting device...

C:\android-sdk\platform-tools>adb shell

# exit

exit

C:\android-sdk\platform-tools>adb push misc_version /data/local/tmp/misc_version

push: misc_version/misc_version_01/misc_version.c -> /data/local/tmp/misc_versio

n/misc_version_01/misc_version.c

push: misc_version/misc_version_01/misc_version -> /data/local/tmp/misc_version/

misc_version_01/misc_version

push: misc_version/misc_version_01/gopt.h -> /data/local/tmp/misc_version/misc_v

ersion_01/gopt.h

push: misc_version/misc_version_01/gopt.c -> /data/local/tmp/misc_version/misc_v

ersion_01/gopt.c

push: misc_version/misc_version.c -> /data/local/tmp/misc_version/misc_version.c

push: misc_version/misc_version -> /data/local/tmp/misc_version/misc_version

push: misc_version/gopt.h -> /data/local/tmp/misc_version/gopt.h

push: misc_version/gopt.c -> /data/local/tmp/misc_version/gopt.c

8 files pushed. 0 files skipped.

420 KB/s (62798 bytes in 0.146s)

C:\android-sdk\platform-tools>adb push flashgc /data/local/tmp/flashgc

push: flashgc/flashgc -> /data/local/tmp/flashgc/flashgc

1 file pushed. 0 files skipped.

1965 KB/s (712688 bytes in 0.354s)

C:\android-sdk\platform-tools>adb shell chmod 777 /data/local/tmp/*

C:\android-sdk\platform-tools>adb shell

# cd /data/local/tmp

cd /data/local/tmp

# ./misc_version -s 1.00.000.0

./misc_version -s 1.00.000.0

./misc_version: permission denied

#

please help i have followed all the steps but i get the same message, i even tried resetting the phone and trying again.