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View Full Version : AT&T CU720 Unlock Problem

chocobozero
05-14-2008, 06:10
Try to unlock AT&T CU720 with QFG LG Module 1.0.0.3049
Select Full Unlock, after that, still shows invalid SmartChip.
Any help?

Here's the log:

Searching phone ...
MODEL : CU720
COMPILED DATE : Mar 26 2008 12:40:00
RELEASE DATE : Oct 3 2007 23:00:00
FIRMWARE INFO : CU720-MSM4090201C-V10l-MAR-26-2008-ATT-US
IMEI : 01148700045352-8
BLUETOOTH ADDR : 00 1F 6B C6 48 32
MEMORY ID : 0098:00CA
MEMORY NAME : toshiba_tya000bc00dogg
MEMORY SIZE : 217MB
PERFORMING OPERATION ...
READING NV ...
READY...
SW VERSION: [OK] CU720FL-01-V10l-310-410-MAR-26-2008+0
IMEI: [OK] 01148700045352800
BLUETOOTH ADDR: [OK] 3248C66B1F00
FORMAT: [OK] IDDE ERROR
CU720 NV FILE VERSION 2 WITH 859 RECORDS.
WRITING NV ...
RESETTING ...
Time needed - 00:00:28


Thanks!!!!
.:hack3r2k:.
05-14-2008, 11:29
Unlock wasnt succesfull " FORMAT: [OK] IDDE ERROR" . Flash phone with TU720 fw and retry.

Br;)
chocobozero
05-15-2008, 04:45
Unlock wasnt succesfull " FORMAT: [OK] IDDE ERROR" . Flash phone with TU720 fw and retry.

Br;)

Flash with TU720, screen will shake and go blank. Still cannot unlock.
chocobozero
05-16-2008, 08:16
Got another AT&T CU720 black version.
Same error, please help.

Searching phone ...
MODEL : CU720
COMPILED DATE : Mar 26 2008 12:40:00
RELEASE DATE : Oct 3 2007 23:00:00
FIRMWARE INFO : CU720-MSM4090201C-V10l-MAR-26-2008-ATT-US
IMEI : 01148700045316-3
BLUETOOTH ADDR : 00 1F 6B C6 46 61
MEMORY ID : 0098:00CA
MEMORY NAME : toshiba_tya000bc00dogg
MEMORY SIZE : 217MB
PERFORMING OPERATION ...
READING NV ...
READY...
SW VERSION: [OK] CU720FL-01-V10l-310-410-MAR-26-2008+0
IMEI: [OK] 01148700045316300
BLUETOOTH ADDR: [OK] 6146C66B1F00
FORMAT: [OK] IDDE ERROR
CU720 NV FILE VERSION 2 WITH 859 RECORDS.
WRITING NV ...
Time needed - 00:00:26
alswedi
07-12-2008, 06:29
yes , i have same problem
maybe becouse new firmware version CU720-MSM4090201C-V10l-MAR-26-2008-ATT-US
i try downgrade but mobile auto restart whendowngrade
only run good after flash new version but stay locked
unlock & flash
07-20-2008, 14:07
first try to be flash with downgrade version
then try to unlock again.
its tested by me
Mehrzad maleki
07-20-2008, 16:10
please any solution??????????????????????////////////

Yes mate
It is easy and tested by me.
Downgrade it With Active Format methode that cause it will not
stricken restart problem after downgrade. and then you can unlock it truly..
raid
07-21-2008, 09:48
no solution yet for this version, try to reflash it with the latest version, it is already in the support area and that will solve the display problem but the phone will stay locked. after that you may order the code through any server.

WBR
shakeelajmal
07-21-2008, 12:53
agree with you raid.... i tried many times but the phone still locked..

Br
unlock & flash
07-21-2008, 19:29
tornado or universal sim is best for cu720