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Thread: HOW TO WORK WITH A2-BASED PHONES

  1. #1
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    Default HOW TO WORK WITH A2-BASED PHONES

    basics:

    - a2 phones can only be served in signed mode.
    - same firmware can be flashed on allowed CID range, you can see CID range in fw name
    - firmware for specific phone domain (color) can only be applied to phone with same domain


  2. #2
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    FLASHING OF A2 PHONES

    common for all CID:
    1. go to semc a2 tab, select proper model
    2. add to firmware area correct MAIN, FS IMAGE parts of firmware. order not important.
    3. select in misc. field needed CUSTPACK (.zip archive with customization files)
    4. if you do not have CUSTPACK, you MUST check on settings "customize phone after flash"
    5. set "signed mode" on settings tab.
    6. set other settings according your needs.
    7. back to semc a2 tab, press flash.


    CID 26,54,60,185,186

    skip step 3,4.


  3. #3
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    UNLOCKING OF A2 PHONES

    CID 49,51,52,53

    standalone usercode reset
    1. select proper model
    2. on settings, check "signed mode"
    3. back to semc a2 tab, press unlock


    CID 49,51,52,53

    standalone full reset-based unlock

    1. select proper model
    2. select needed domain (leave "current" for no change)
    3. on settings, check "signed mode","use alternative security bypass"
    4. back to semc a2 tab, press unlock

    that method can fix damaged SCRC and fixing SEMCBOOT automatically.
    that is preferred method for such phones.

    server-based full signature unlock

    1. select proper model
    2. on settings, check "signed mode","do full unlock instead usercode reset",fill login details
    3. back to semc a2 tab, press unlock

    that method can not fix SCRC.

    CID 80,81

    server-based full signature unlock

    1. select proper model
    2. on settings, check "signed mode","do full unlock instead usercode reset",fill login details
    3. back to semc a2 tab, press unlock

    that method can not fix SCRC.

    if s1 signature server offline, you can not use quick (without modem drivers) unlock.
    instead, you should :

    1.
    select proper model
    2.
    on settings, check
    "signed mode",
    "do full unlock instead usercode reset",
    "disable flash mode activation for semc a2 phones",
    fill login details
    3.
    back to semc a2 tab, press unlock
    4.
    when prompted, install phone modem drivers
    (they can be found in drivers\Modem_Drivers or will be automatically installed if you install semc pc suite)
    5.
    when you will get message "unlock done" - do not remove cable or battery,
    wait until phone automatically power on, otherwise you will get 5 locks and need to repeat procedure.

    you can not unlock last SEMC A2 phone ( j108 ) with CSCA method, use special bypass mode.
    you MUST flash r7cXXX firmware version to be able unlock w20 phone with CSCA method.


    CID 26,54,60,185,186

    standalone full unlock

    1. select proper model
    2. on settings, check "signed mode"
    3. back to semc a2 tab, press unlock

    that method can fix SCRC.
    that is preferred method to unlock such phones.


  4. #4
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    POSSIBLE PROBLEMS AND METHODS OF REPAIR

    CID 49,51,52,53

    damaged trim area (ta_open errors)

    1. select proper model or model,based on same chipset
    2.
    skip that step, if phone already r&d (brown).
    convert phone to r&d (brown) domain, for that unlock phone in alternative security bypass mode with brown domain set.
    3.
    if your phone based on db3150 chipset - add to firmware area Shinobu_TA.ssw ( for k850 - sofia_ta.ssw )
    if your phone based on db3200 chipset - add to firmware area elle_ta.ssw
    if your phone based on db3210 chipset - add to firmware area Shiho_TA.ssw
    if your phone based on db3350 chipset - add to firmware area aino_ta.ssw
    (exception should be done for latest db3350 phones: w20,j10,j20 - aino_ta.ssw will not work for them)
    4. set ecc mode: none (0)
    5. on settings, check only signed mode
    6. press flash
    7. get gdfs package from proper model working phone, add it to misc. field
    8. press write gdfs
    9. unlock phone using alternative security bypass mode
    10. reflash phone fully.

    alternative way, need to use at least setool2 1.08

    1. select proper model or model,based on same chipset
    2.
    skip that step, if phone already r&d (brown).
    convert phone to r&d (brown) domain, for that unlock phone in alternative security bypass mode with brown domain set.
    3. select in misc. edit proper gdfs package, DO NOT unzip gdfs package, just select it as is.
    4. on settings, check only signed mode
    5. press write gdfs
    6. unlock phone using alternative security bypass mode
    7. reflash phone fully.

    phone does not startup or stuck on "please wait"

    unlock phone using alternative security bypass

    CID 54

    phone stuck on lg logo.
    first reflash phone fully with latest firmware version.
    if that not help, then

    1. select proper model, on settings check only "signed mode"
    2.
    if your phone db3150,add to firmware area kf75x_syspart_fix.ssw
    if your phone db3200, add to firmware area gt505_syspart_fix.ssw
    3. press flash
    4. press unlock
    5. press "clear names"
    6. reflash phone fully with required firmware

    if phone still hangs on lg logo, redo operation with different step 2:
    2.
    if your phone db3150,add to firmware area kf75x_syspart_fix.ssw,kf75x_drm_fix.ssw ( or corresponding model files )
    if your phone db3200, add to firmware area gt505_syspart_fix.ssw,gt505_drm_fix.ssw ( or corresponding model files )

    6. if needed, write gdfs package from proper model working phone, unlock phone after

    CID 60,185,186

    1. unlock phone
    2. reflash phone
    3. if needed, write gdfs package from proper model working phone, unlock phone after


  5. #5
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    special post regarding lg gt40x phones, can be used as reference for other lg db3200-based cid54 phones.

    user MUST use setool2 version at least 1.083.

    i will use "BIN_GT400AT-00-V10e-EUR-XX-JUN-07-2010+0" as example, cause i like it

    if phone in "dead state":

    1. best scenario, should work always

    PHP Code:
    select gt400optionssigned modeadd to firmware area in order:
    GT40x_cxc000000_APPLICATION_PHONE_SB_IAR-ARM-NAND.ssw
    GT400_CXC_FS_CABS_LP_NAND_commercial_EUR_OPEN
    .ssw
    GT40x_CXC_LGPXO_SYS_CABS_LP_NAND_commercial
    .ssw
    gt400_syspart_fix
    .ssw
    gt505_drm_fix
    .ssw

    add to misc edit 
    gt400_update_gdfs_20100324
    .gdf.gdfs

    press flash
    press unlock

    power on phone 
    and enjoy power of setool2 ;) 

    if phone in "working state":

    1. best scenario
    PHP Code:
    select gt400optionssigned mode
    press unlock

    power on phone 
    and enjoy power of setool2  ;) 

    it is absolutely necessary to use fix files from setool2 version at least 1.083

    if you will check "use high speed usb flashing" - you will save at least 3 minutes, so worth to check.
    when "switching..." message will appear, windows will find and install usbflash drivers.
    if switching process fails, just repeat procedure.


  6. #6
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    HOW TO CONNECT SAMSUNG M5650, SGH-A697, SGH-A797

    1. power off phone

    2.
    Connect the cable to M5650 while you press Volume Down + Camera key and connect to PC via USB cable
    Connect the cable to SGH-A697 while you press 1 + 0 and connect to PC via USB cable
    Connect the cable to SGH-A797 while you press 1 + message key and connect to PC via USB cable


  7. #7
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    q:
    how to unlock j108 phone without s1 signature server to be online ?

    a:
    you need to have setool2 v1.1285 or higher.
    you need to have test sim card ( with mnc/mcc 00101 ) in phone.
    you need to have memory card in phone.
    you need to have valid username/password with at least 3 credits.
    phone should be in working state.

    procedure is complicated and definitely NOT for beginners.


    1.
    flash any R7EA011 firmware into phone.
    fully power on phone, wait until phone setup will be completed.
    this is absolute requirement.

    important !
    do identify before unlock steps or make trim area backup.
    that will greatly help you if anything will go wrong.


    2.
    run setool2, check that valid username/password entered, then go to "j108 bypass" tab.
    press "upload executor package"

    insert test sim card, memory card, connect powered off phone while holding "C" button
    after initial procedure, disconnect phone , power on it, wait until setup complete and power off phone again.

    3.
    press "upload executor extractor"

    insert test sim card, memory card, connect powered off phone while holding "C" button
    after initial procedure, disconnect phone , power on it, wait until setup complete

    set usb connection in phone options to "file transfer" ,connect phone to cable and copy from memory card "other\executor.b" to setool2\backup\%imei% .
    setool2 will open that folder for you in minimized state, check taskbar.

    ( if your system recognize phone as MTP device, you can copy file without setting USB connection to "file transfer" )

    power off phone.

    4.
    press "unlock phone"

    insert test sim card ( can use accepted operator sim card ), memory card, connect powered off phone while holding "C" button
    after initial procedure, disconnect phone , power on it,

    set usb connection in phone options to "other OS"
    install phone MODEM drivers, if required ( dist\drivers\Modem_Drivers )
    wait, until setool2 finish procedure.

    after setool2 finish procedure, do not disconnect phone from cable, do not remove phone battery, until phone powers on by itself.
    otherwise you need to restore secunits backup and repeat step 3 from beginning.


    this is not patch unlock, phone unlock is permanent

    important !
    delete executor from games !
    cause once user will run executor, phone will enter "5-locks" state ...
    the only way to fix it - restore secunits backup and run unlock procedure again, from step 3 , no more credits required



    It is not 100% confirmed, but it looks like, that if next steps meets

    1. j108 phone was unlocked by unique setool2 bypass method
    2. user run executor and phone became 5-locks
    3. you do not have security units backup for phone

    you CAN just perform standard CSCA unlock and phone will be successfully unlocked.
    of course, you DO NOT need any additional credits.


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