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Old 03-12-2017, 08:34   #271 (permalink)
rajanumamani
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Join Date: Feb 2007
Posts: 113
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G550fy cert write error z3x version 27.8

BACKUP INSTRUCTIONS:
Phone must be rooted!
If the software can't root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options',
go to 'Settings'-'Developer options' and enable 'USB debugging'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press 'Read EFS' button to read backup or 'Write EFS' to restore.
6. Press 'Write CERT' to restore certificates.
7. Press 'Write NV DATA' if you need to restore NV backup.

Read certificate operation:
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 'Read CERT' button to read certificates.

Operation: Write CERT
Selected model: SM-G550FY
Software version: 27.8

Waiting ADB device... Ok
Reading phone info...
Model: SM-G550FY
Android version: 5.1.1
Product code: SM-G550FZDDINS
Phone version: G550FYDDU1APC3
PDA version: G550FYDDU1APC4
CSC version: G550FYODD1APC3
CSC country code: India
CSC sales code: INS
HW version: MP 0.100
Phone SN: *********
Chip name: EXYNOS3475
Modem board: SHANNON308
RF cal date: 20160427
IMEI:
Checking Super user right... true
Reading NV data... Ok
Checking NV data... Ok
Initialization zTool... Ok
Running zTool, please wait...
Start... Ok
Initialization... Ok
Generate and check client proof... Ok
Verify proof by client... Ok
Reading data from phone... Ok
Modem board: SHANNON308
HWID: BD 01 ** ** ** ** ** ** ** ** ** ** ** ** ** **
Calculating... Ok
Initialization AT RIL...
AT RIL stopped, restarting... error (0)

Done with Samsung Tool PRO v.27.8
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