Just got BST, failed to unlock SM-G900R4 [ANSWERED] - GSM-Forum

mcxar · 01-09-2015, 22:26

Hi, i just got the dongle and cables, BST has failed to network unlock Samsung SM-G900R4 from us cellular, the latest update specified it should be able unlock it? what im doing wrong? here is the dialog i get:

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
-----------------------------------------------------
Download: Press Vol Dn + Home + Power

UART Cable Resistor: 523 K
ReadCodes/Unlock/Repair:
1. Type *#0808# and set USB to AP.
2. Set "USB Settings" to "DM+MODEM+ADB".
3. Click "OK".
Cables: MicroUSB
Interface: Auto, Change UART when request

Read Info/Flashing/UserLock/Backup:
Cables: MicroUSB
Interface: Auto

Device Authentication ...
Unlocking device ... ok
All lock written to '00000000'
Reboot device to NORMAL mode ...
Re-scan device before any operation please
Time used : 26.7 s

Scanning devices ... 0 found

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
Device Authentication ...
Master Lock: Encrypted
Network Lock: Encrypted
Sub Lock: Encrypted
SP Lock: Encrypted
CP Lock: Encrypted
SIM Lock: Encrypted

Any help please?

mmrozibul · 01-10-2015, 04:42

First read instruction properly , then try

Root> Read EFS, NVM> Write Default EFS> Write Super IMEI > write backup nvm and Repair 3g if needed

Post result.

mcxar · 01-10-2015, 05:45

Where do i get the default efs file?

mcxar · 01-10-2015, 06:17

Ok i did this up to this part Root> Read EFS, NVM> Write Default EFS after writing default efs the UART cable no longer detects the phone. what now?

mcxar · 01-10-2015, 06:36

Seems the phone needed a couple resets for it to pick it up again on the UART, i wrote the new imei i think, i will now write the backup nvm and the 3g option is off for this phone

mcxar · 01-10-2015, 07:01

After doing all those steps, is still locked, with the bonus that now i have lost my imei and has been replaced by the super imei number, is still 14 digits.

mmrozibul · 01-10-2015, 07:24

Look here for UART Problem

http://forum.gsmhosting.com/vbb/f891...ering-1830484/

mmrozibul · 01-10-2015, 07:30

After Write Default EFS> Write Super IMEI > Check network if not ok then write nvm (Not efs)

mcxar · 01-10-2015, 17:02

UART worked again after i reset the phone a couple times, so that one was solved, after writing super imei the network was still locked, i restored the nvm backup now.

tonsdean · 01-26-2015, 04:26

HI,
UART didnot work for me. I already added resistor/use usb a-b cable/set uart in the phone via 0808/7284... has detected prolific driver/ blue light appeared/ but phone not detected/ only har soft beep sound from the phone... thank you

**EmeGSM-Wei** · 01-26-2015, 12:45

Quote:

Originally Posted by mcxar

Hi, i just got the dongle and cables, BST has failed to network unlock Samsung SM-G900R4 from us cellular, the latest update specified it should be able unlock it? what im doing wrong? here is the dialog i get:

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
-----------------------------------------------------
Download: Press Vol Dn + Home + Power

UART Cable Resistor: 523 K
ReadCodes/Unlock/Repair:
1. Type *#0808# and set USB to AP.
2. Set "USB Settings" to "DM+MODEM+ADB".
3. Click "OK".
Cables: MicroUSB
Interface: Auto, Change UART when request

Read Info/Flashing/UserLock/Backup:
Cables: MicroUSB
Interface: Auto

Device Authentication ...
Unlocking device ... ok
All lock written to '00000000'
Reboot device to NORMAL mode ...
Re-scan device before any operation please
Time used : 26.7 s

Scanning devices ... 0 found

Scanning devices ... 1 found
dev[1]
Manufactory: SAMSUNG
Model: SM-G900R4
Hardware: QCOM
Mode: normal
Device Authentication ...
Master Lock: Encrypted
Network Lock: Encrypted
Sub Lock: Encrypted
SP Lock: Encrypted
CP Lock: Encrypted
SIM Lock: Encrypted

Any help please?

Hi,

After Network unlocked done, any problem facing now??? uart connect working as your logs.

How to unlock SM-G900R4:

1. backup efs & nvm;
2. write default efs
3. write superIMEI
4. put sim card check network, do "repair network" if no have network

Best Regards
GsmBest Team

tonsdean · 02-09-2015, 05:09

Hi there, any procedure for "repair network"? the button for "repair network" is disabled. thank you

jlscastillo · 02-16-2015, 18:33

Did you unlock the phone? i make the uart work, but
"repair network" option is disabled in my software and my phone still lock

Bscaine · 06-17-2015, 14:03

Thats not a gsm phone, BST it's taking you for a fool saying it's unlockable when it's not.

01-09-2015, 22:26	#1 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	Just got BST, failed to unlock SM-G900R4 [ANSWERED] Hi, i just got the dongle and cables, BST has failed to network unlock Samsung SM-G900R4 from us cellular, the latest update specified it should be able unlock it? what im doing wrong? here is the dialog i get: Scanning devices ... 1 found dev[1] Manufactory: SAMSUNG Model: SM-G900R4 Hardware: QCOM Mode: normal ----------------------------------------------------- Download: Press Vol Dn + Home + Power UART Cable Resistor: 523 K ReadCodes/Unlock/Repair: 1. Type *#0808# and set USB to AP. 2. Set "USB Settings" to "DM+MODEM+ADB". 3. Click "OK". Cables: MicroUSB Interface: Auto, Change UART when request Read Info/Flashing/UserLock/Backup: Cables: MicroUSB Interface: Auto Device Authentication ... Unlocking device ... ok All lock written to '00000000' Reboot device to NORMAL mode ... Re-scan device before any operation please Time used : 26.7 s Scanning devices ... 0 found Scanning devices ... 1 found dev[1] Manufactory: SAMSUNG Model: SM-G900R4 Hardware: QCOM Mode: normal Device Authentication ... Master Lock: Encrypted Network Lock: Encrypted Sub Lock: Encrypted SP Lock: Encrypted CP Lock: Encrypted SIM Lock: Encrypted Any help please?

01-10-2015, 07:01	#6 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	After doing all those steps, is still locked, with the bonus that now i have lost my imei and has been replaced by the super imei number, is still 14 digits. Last edited by mcxar; 01-10-2015 at 07:07.

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01-10-2015, 04:42	#2 (permalink)
mmrozibul No Life Poster Join Date: Mar 2008 Location: Inside Technology Posts: 1,007 Member: 725443 Status: Offline Sonork: 100.1601305 Thanks Meter: 330	First read instruction properly , then try Root> Read EFS, NVM> Write Default EFS> Write Super IMEI > write backup nvm and Repair 3g if needed Post result.

01-10-2015, 05:45	#3 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	Where do i get the default efs file?

01-10-2015, 06:17	#4 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	Ok i did this up to this part Root> Read EFS, NVM> Write Default EFS after writing default efs the UART cable no longer detects the phone. what now?

01-10-2015, 06:36	#5 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	Seems the phone needed a couple resets for it to pick it up again on the UART, i wrote the new imei i think, i will now write the backup nvm and the 3g option is off for this phone

01-10-2015, 07:24	#7 (permalink)
mmrozibul No Life Poster Join Date: Mar 2008 Location: Inside Technology Posts: 1,007 Member: 725443 Status: Offline Sonork: 100.1601305 Thanks Meter: 330	Look here for UART Problem http://forum.gsmhosting.com/vbb/f891...ering-1830484/

01-10-2015, 07:30	#8 (permalink)
mmrozibul No Life Poster Join Date: Mar 2008 Location: Inside Technology Posts: 1,007 Member: 725443 Status: Offline Sonork: 100.1601305 Thanks Meter: 330	After Write Default EFS> Write Super IMEI > Check network if not ok then write nvm (Not efs)

01-10-2015, 17:02	#9 (permalink)
mcxar Junior Member Join Date: Jan 2015 Posts: 6 Member: 2325632 Status: Offline Thanks Meter: 0	UART worked again after i reset the phone a couple times, so that one was solved, after writing super imei the network was still locked, i restored the nvm backup now.

01-26-2015, 04:26	#10 (permalink)
tonsdean Junior Member Join Date: Jan 2015 Posts: 7 Member: 2335023 Status: Offline Thanks Meter: 1	HI, UART didnot work for me. I already added resistor/use usb a-b cable/set uart in the phone via 0808/7284... has detected prolific driver/ blue light appeared/ but phone not detected/ only har soft beep sound from the phone... thank you

02-09-2015, 05:09	#12 (permalink)
tonsdean Junior Member Join Date: Jan 2015 Posts: 7 Member: 2335023 Status: Offline Thanks Meter: 1	Hi there, any procedure for "repair network"? the button for "repair network" is disabled. thank you

02-16-2015, 18:33	#13 (permalink)
jlscastillo Junior Member Join Date: Feb 2015 Posts: 4 Member: 2346705 Status: Offline Thanks Meter: 0	Did you unlock the phone? i make the uart work, but "repair network" option is disabled in my software and my phone still lock

06-17-2015, 14:03	#14 (permalink)
Bscaine No Life Poster Join Date: Jan 2011 Location: Cuba Posts: 1,956 Member: 1484663 Status: Offline Thanks Meter: 344	Thats not a gsm phone, BST it's taking you for a fool saying it's unlockable when it's not.