SM-N920A write cert error 8 - GSM-Forum

rithya · 06-19-2016, 04:13

my galaxy note5 sm-n920a imei = null, unknow baseband. i try to write cert file many time and also downgrade samsungtool pro to 4.1 but still fail... any one can help me?

Operation: Write CERT
Selected model: SM-N920A
Software version: 25.7

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-N920A
Android version: 5.1.1
Product code:
Phone version:
PDA version: N920AUCU1AOGG
CSC version: N920AATT1AOGG
CSC country code: USA
CSC sales code: ATT
HW version:
Phone S/N: RF1D45EJGGR
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (8)

Done with Samsung Tool PRO v.25.7

mickeypopoy · 06-19-2016, 05:02

first flash the phone to stock rom if baseband unknown !

if baseband is back after you flash try to write efs then write cert thats all

i hope you fix that

CHANDARAKK · 06-19-2016, 05:14

Quote:

Originally Posted by rithya

my galaxy note5 sm-n920a imei = null, unknow baseband. i try to write cert file many time and also downgrade samsungtool pro to 4.1 but still fail... any one can help me?

Operation: Write CERT
Selected model: SM-N920A
Software version: 25.7

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-N920A
Android version: 5.1.1
Product code:
Phone version:
PDA version: N920AUCU1AOGG
CSC version: N920AATT1AOGG
CSC country code: USA
CSC sales code: ATT
HW version:
Phone S/N: RF1D45EJGGR
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (8)

Done with Samsung Tool PRO v.25.7

try reset efs first bro

rithya · 06-20-2016, 04:23

Quote:

Originally Posted by mickeypopoy

first flash the phone to stock rom if baseband unknown !

if baseband is back after you flash try to write efs then write cert thats all

i hope you fix that

yes i already flash stock rom but baseband still unknown

rithya · 06-20-2016, 04:43

Quote:

Originally Posted by CHANDARAKK

try reset efs first bro

Operation: Reset EFS
Selected model: SM-N920A
Software version: 25.7

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-N920A
Android version: 5.1.1
Product code:
Phone version:
PDA version: N920AUCU1AOGG
CSC version: N920AATT1AOGG
CSC country code: USA
CSC sales code: ATT
HW version:
Phone S/N: RF1D45EJGGR
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Backuping EFS... error (1)
Reseting EFS... error

Done with Samsung Tool PRO v.25.7

i can't reset efs bro...!!!

ghacks · 06-20-2016, 05:00

bro downgrade samsung tools with a lower version i think new version cannot bro

ghacks · 06-20-2016, 05:02

bro downgrade samsung tools with a lower version i think new version cannot bro

rithya · 06-22-2016, 06:42

Quote:

Originally Posted by ghacks

bro downgrade samsung tools with a lower version i think new version cannot bro

yes bro.. i downgrade already but still error

**blang** · 06-22-2016, 09:22

root phone, try flash old modem and the repeat.

kbdaking1 · 09-06-2017, 20:38

Quote:

Originally Posted by rithya

my galaxy note5 sm-n920a imei = null, unknow baseband. i try to write cert file many time and also downgrade samsungtool pro to 4.1 but still fail... any one can help me?

Operation: Write CERT
Selected model: SM-N920A
Software version: 25.7

Waiting ADB device... OK
Reading phone info...
Model: SAMSUNG-SM-N920A
Android version: 5.1.1
Product code:
Phone version:
PDA version: N920AUCU1AOGG
CSC version: N920AATT1AOGG
CSC country code: USA
CSC sales code: ATT
HW version:
Phone S/N: RF1D45EJGGR
Modem board:
RF cal date:
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (8)

Done with Samsung Tool PRO v.25.7

Did you ever fix this?

06-19-2016, 04:13	#1 (permalink)
rithya Junior Member Join Date: Jun 2008 Posts: 5 Member: 784216 Status: Offline Sonork: rithya Thanks Meter: 0	SM-N920A write cert error 8 my galaxy note5 sm-n920a imei = null, unknow baseband. i try to write cert file many time and also downgrade samsungtool pro to 4.1 but still fail... any one can help me? Operation: Write CERT Selected model: SM-N920A Software version: 25.7 Waiting ADB device... OK Reading phone info... Model: SAMSUNG-SM-N920A Android version: 5.1.1 Product code: Phone version: PDA version: N920AUCU1AOGG CSC version: N920AATT1AOGG CSC country code: USA CSC sales code: ATT HW version: Phone S/N: RF1D45EJGGR Modem board: RF cal date: IMEI: Checking Super user right... true Initializating zTool... OK Running zTool, please wait... Start... OK Init... OK Generate and check client proof... OK Verify proof by client... OK Reading data... error (8) Done with Samsung Tool PRO v.25.7

06-20-2016, 05:02	#7 (permalink)
ghacks No Life Poster Join Date: Dec 2009 Location: *** Taste Good Age: 39 Posts: 4,066 Member: 1196914 Status: Offline** Sonork: 100.1667938 Thanks Meter: 1,645	try it bro downgrade samsung tools with a lower version i think new version cannot bro

06-19-2016, 05:02	#2 (permalink)
mickeypopoy Insane Poster Join Date: Dec 2008 Posts: 72 Member: 921124 Status: Offline Thanks Meter: 8	first flash the phone to stock rom if baseband unknown ! if baseband is back after you flash try to write efs then write cert thats all i hope you fix that

06-20-2016, 05:00	#6 (permalink)
ghacks No Life Poster Join Date: Dec 2009 Location: *** Taste Good Age: 39 Posts: 4,066 Member: 1196914 Status: Offline** Sonork: 100.1667938 Thanks Meter: 1,645	bro downgrade samsung tools with a lower version i think new version cannot bro

06-22-2016, 09:22	#9 (permalink)
blang Product Manager Join Date: Oct 2000 Location: future Posts: 22,431 Member: 2368 Status: Offline Sonork: 100.111111 Thanks Meter: 186,558	root phone, try flash old modem and the repeat.