FAQ from MOBILE-FILES.COM

[GSM™]

q: i tried to unlock lg kf75x/kt52x with IMEI "01xxx..." and got weird error,
phone goes dead. what to do ?

a:
you need setool2 version >=v0.915020 for that.

just unlock phone again - it will be fixed and properly handled.
but - you must manually enter generated unlock code.
unlock code can be entered by typing 2945#*750#
in some cases, it will not work until you flash generic (open) firmware from support area.

edit:
from setool2 version >=v0.915025 direct unlock of such units reintroduced, you do not need enter codes manually.


q: i tried to unlock lg gt500,gt505. unlock process appeared to be okay, but phone dead after that ?
what to do ?

a:
reflash phone with any situable firmware from support.


q: there is too many bypass options. i'm stuck.

a:

here is short cheatlist of different phones and scenarios.

db2000 cid 16,29,36,37,49

normal bypass settings state - all unchecked, there is no any special bypass options for that phones.
if "use signed mode" checked - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
to unlock network locks/repair seczone no settings should be checked.
if phone has cid 37,49 and EROM is damaged - you need use hardware things to repair.
to unlock network locks using server "use signed mode" should be checked.
usercode can be seen in identify output.

db2001 cid 53

such asic can only be encountered in pda phones.
"use signed mode" should be checked
to unlock network locks "perform full unlock instead of usercode reset" should be checked
usercode can be seen in identify output
setool2 can not repair seczone in such phones at all.

db2010 cid 16,29,36,49

normal bypass settings state - all unchecked, there is no any special bypass options for that phones.
if "use signed mode" checked - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
to unlock network locks/repair seczone no settings should be checked.
if phone has cid 49 and EROM is damaged - you need use hardware things to repair.
to unlock network locks using server "use signed mode" should be checked.
usercode can be seen in identify output.

db2010 cid 50,51,52,53

"use signed mode" should be checked for RETAIL phones - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
setool2 can not repair seczone for that type of phones without hardware things.
to unlock network locks using server "use signed mode" AND "perform full unlock instead of usercode reset" should be checked
usercode can be seen in identify output.

there is two type of alternative bypass (bypass enables patch unlock, full fs operations, crossCID flash)

1. using server: should check "use signed mode", "enable alternative security bypass" (will work for cid50,51 only)
2. using local bypass: should check "use signed mode", "enable alternative security bypass", "enable preloader security bypass"

db2020 cid 49,51,52,53

"use signed mode" should be checked for RETAIL phones - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
setool2 can not repair seczone for that type of phones without hardware things.
to unlock network locks using server "use signed mode" AND "perform full unlock instead of usercode reset" should be checked
to reset usercode lock you must check "use signed mode" only.

there is two type of alternative bypass (bypass enables patch unlock, full fs operations, crossCID flash)

1. using server: should check "use signed mode", "enable alternative security bypass" (will work for cid49,51 only)
2. using local bypass: should check "use signed mode", "enable alternative security bypass", "enable preloader security bypass"

db2020 cid 80,81

not officially released by semc, but kukuruzer tool,using unique hardware device, can be used to create such phones.
such phones can not be serviced with anything, until CID will be lowered again via kukuruzer tool.

pnx5230 cid 49,51,52,53

"use signed mode" should be checked for RETAIL phones - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
setool2 can not repair seczone for that type of phones at all.
to unlock network locks using server "use signed mode" AND "perform full unlock instead of usercode reset" should be checked
to reset usercode lock you must check "use signed mode" only.

there is two type of alternative bypass (bypass enables patch unlock, full fs operations, crossCID flash)

1. using server: should check "use signed mode", "enable alternative security bypass" (will work for cid49,51 only)
2. using local bypass: should check "use signed mode", "enable alternative security bypass", "enable preloader security bypass"

db3150,db3200,db3210,db3350 cid 49,51,52,53

"use signed mode" should be checked for RETAIL phones - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
to unlock network locks using server "use signed mode" AND "perform full unlock instead of usercode reset" should be checked
to reset usercode lock you must check "use signed mode" only.

there is one type of alternative bypass (bypass enables full unlock, full fs operations):

using local bypass: should check "use signed mode", "enable alternative security bypass"

db3200,db3210,db3350 cid 80,81

"use signed mode" should be checked for RETAIL phones - you can only flash signed (flash file CID/DOMAIN=phone CID/DOMAIN)
to unlock network locks using server "use signed mode" AND "perform full unlock instead of usercode reset" should be checked
to reset usercode lock you must check "use signed mode" only.

there is no alternative bypass.

semc ODM phones

"enable preloader security bypass" has no effect and must be disabled.

if "use signed mode" checked - you can use usb interface for some models, can use only signed flashes, can reset usercode and total time.
if "do full unlock instead user code reset" checked WITH "use signed mode" - you can do network unlock, server account required.
if "enable alternative security bypass" checked WITH "use signed mode" - you can do network unlock by patch, server account required.
if "use signed mode" NOT checked - you can make network unlock by patch using security hole, but that security hole is closed in all latest locosto chipset revisions.


lg3g,sharp cid 17,24,41,42,54 phones

"use signed mode", "enable alternative security bypass", "enable preloader security bypass" has no effect and must be disabled.

lg,sagem A2-based cid 54,60,185,186

"use signed mode" should be enabled (it has no effect for most functions,though)