To connect SM-J500F phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging"...
UNLOCK INSTRUCTIONS:
1. Power on the phone.
2. Type ##3424#
3. Select 'Qualcomm USB Settings' and choose 'MTP-ADB'.
4. Connect phone to PC with USB cable, install drivers if needed.
5. Choose diagnostic port in port settings.
6. Press 'Unlock Domestic' button.
DONE..:-bd:-bd
DOWNLOAD FIRMWARE SA SUPPORT NI OCTOPUS
http://support.octoplusbox.com:82/support/LG/
PAKATAPOS MA DOWNLOAD ANG FIRMWARE
DOWNLOAD MODE ANG CP PRESS VOL UP
THEN SALPAK USB..
OPEN OCTOPUS..LOAD FIRMWARE AND TICK WRITE FIRMWARE
FINISH PRODUCT..(l:0(l:0
DONE..:-bd:-bd:-bd:-bd:-bd
PROCEDURE..
1. run CM2
2. normal micro USB cable
3. boot key ( option key ) left side sa itaas ng call button
4. select SPD 6531 CPU boot sa settings tab
5. Service tab
6. User data/forensic tab
Read User Code / di na ako nag read flash safe nmn kay CM2
Done...
UNLOCK INSTRUCTIONS:
1. Power on the phone.
2. Connect the phone to PC with USB cable.
3. Check Samsung modem in device manager, install drivers if needed.
4. Press 'Unlock' button for direct unlock or 'Read codes' to read security codes.
AFTER MA READ CODES LAGAY MU NA YUNG...
SM_J120a 6.0.1 unlock error..DONE via downgrade modem
try q readcodes sa z3x ska sa octupos pero error
need to downgrade daw ang modem..
kaya ito ang ginawa ko mga idol..
download nyu eto..
https://www.4shared.com/rar/ORjB7zqsei/CP_J120AUCU2APJ2_CL7662162_QB1.html
flash to odin:D...
UNLOCK INSTRUCTIONS:
Micro-USB cable:
1. Phone must be powered on.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Type *#9090# and choose USB (or 'DM/DUN over HSIC').
4. Reboot phone.
5. Connect USB cable, install drivers if needed.
6. Select Samsung diagnostic port in port...
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