HOW TO WORK WITH SEMC PDA PHONES

[the_laser]

q:
my semc 8x55-based smartphone can't be detected by PC or detecting as "QHUSB_DLOAD".
my semc 7227-based smartphone can't be detected by PC.
my semc 8250-based smartphone can't be detected by PC.

a:
at least semc boot damaged

step I.

for 8x55-based phones select USB as interface, then

1. pda tab, select corresponding phone model
2. options tab, check : signed mode, alternative security bypass
3. pda tab, press "recovery"

for 7227,8250-based phones select COM as interface, then

1. pda tab, select corresponding phone model
2. options tab, check : signed mode, alternative security bypass, use testpoint ("GND" type)
3. pda tab, press "recovery"

important notice:
for msm7227 phones, insert battery in phone after you attached testpoint.
for x10 phone connect RED dot to GND permanently during entire testpoint procedure

if you get next output

MINOR ERROR [ MISC_CLASS: MISC_ERROR, TA_invalid,_format_may_be_required ]
MINOR ERROR [ MISC_CLASS: MISC_ERROR, TA_invalid,_format_may_be_required ]

and do not have trim area backup, thats bad, but you still can fix phone : check next post

step II.

1. pda tab, select corresponding model
2. options tab, check : signed mode
3. pda tab, add needed firmware files ( DO NOT UNPACK ) ( BOTH APP and FSP) to fw area
4. press "flash"

q:
during second stage of testpoint unlock procedure i made testpoint wrong/disconnect phone/etc - my phone dead, but i have security units backup.


a:
that can be fixed easy enough.

step I.

for 8x55-based phones select USB as interface, then

1. pda tab, select corresponding phone model
2. options tab, check : signed mode, alternative security bypass
3. pda tab, press "recovery"

for 7227,8250-based phones select COM as interface, then

1. pda tab, select corresponding phone model
2. options tab, check : signed mode, alternative security bypass, use testpoint ("GND" type)
3. pda tab, press "recovery"

if you will get output like

MINOR ERROR [ MISC_CLASS: MISC_ERROR, TA_invalid,_format_may_be_required ]
MINOR ERROR [ MISC_CLASS: MISC_ERROR, TA_invalid,_format_may_be_required ]

then and only then perform next step, otherwise skip to step IV

step II.

1. pda tab, select corresponding model
2. options tab, check : signed mode, alternative security bypass, format gdfs during write

for 7227,8250-based phones select COM as interface and
2. options tab, check : signed mode, alternative security bypass, use testpoint ("GND" type), format gdfs during write

3. pda tab, select trim area package files for your phone model ( DO NOT UNPACK, DO NOT UNZIP, DO NOT TOUCH IT IN ANY WAY ) in misc. edit
4. press "write gdfs"

step III.

1. pda tab, select corresponding model
2. options tab, check : signed mode, alternative security bypass

for 7227,8250-based phones select COM as interface and
2. options tab, check : signed mode, alternative security bypass, use testpoint ("GND" type), format gdfs during write

3. pda tab, select YOUR BACKUP SCRIPT
4. press "write script"

step IV.

1. pda tab, select corresponding model
2. options tab, check : signed mode
3. pda tab, add needed firmware files ( DO NOT UNPACK ) ( BOTH APP and FSP) to fw area
4. press "flash"