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Old 01-27-2015, 09:36   #1 (permalink)
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lenovo s650 invalid imei (cdc serial usb driver problem) [SOLVED]


hi

im trying to repair imei for this lenovo s650 with 4.4.2 android version in meta mode but im stuck in this cdc serial usb driver.

i have tried all mtk cdc driver and ZTE_LENOVO_MTK_CDC_VCOM_drivers from support but no luck


need urgent help from nck team.

Quote:
Action : IMEI REPAIR.
Selected Lenovo:Lenovo S650
IMEI for write : 350090941228550
Scanning for presents meta ports...
Meta ports not detected, starting brom stage.
Phone must be off with battery inside.
Please insert USB cable now...
Detected(0) : PreLoader USB VCOM (Android) (COM4)
Starting META mode, wait...
If drivers missing, please install CDC drivers.
Restarted to meta ok, waiting for meta port....
in adb mode with proper usb driver

Quote:
Action : IMEI REPAIR.
Selected Lenovo:Lenovo S650
IMEI for write : 350090941228550
Repair IMEI Start.
Phone lcd must be on and unlocked.
If ask for SU acces, accept it.
Device not found.
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Old 01-27-2015, 10:00   #2 (permalink)
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You can also try with MTK_Android_CDC_Drivers_new.rar

First reboot in Meta Mode then try.

If not work, you can install driver for Meta Port from Device Manager once phone in Rebooted in Meta Mode.

Br,
NCK Team
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Old 01-27-2015, 10:31   #3 (permalink)
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Quote:
You can also try with MTK_Android_CDC_Drivers_new.rar

First reboot in Meta Mode then try.

If not work, you can install driver for Meta Port from Device Manager once phone in Rebooted in Meta Mode.

Br,
NCK Team
same result..............
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Old 01-27-2015, 10:44   #4 (permalink)
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What do you mean by same result?

How we can see what is happening at your side by saying "same result"?

You must check your self in Device Manager. If driver is not installed then it must be listed there with Yellow Exclamation mark.

If you still can solve this issue, contact me on Yahoo Messenger.

Br,
NCK Team
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Old 01-27-2015, 11:52   #5 (permalink)
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hi ralel.
Check your pc, exe really not have connection problems.

Code:
same result..............
Untill you not solve driver problem, will be same result.
Here not exist magic, drivers not installed or incorectly installed, exe will not see phone.
Also windows have control panel where show vid and pid for "problematic" device.
Try to open control panel and check driver inf file and your vid_pid entry.
Evantually add manual coresponding vid and pid in inf file.
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Old 01-28-2015, 00:55   #6 (permalink)
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problem solved.

flash and downgrade to version 4.2.2 with nckbox android mtk module then repair imei via adb mode, no need to root.

thanks NCKCDMA & orbita
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Old 01-28-2015, 01:19   #7 (permalink)
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flashing with 4.2.2

Quote:
Send preloader...
Download firmware to flash now...
MBR checksum is executing ...
EBR1 checksum is executing ...
UBOOT checksum is executing ...
BOOTIMG checksum is executing ...
RECOVERY checksum is executing ...
SEC_RO checksum is executing ...
LOGO checksum is executing ...
EBR2 checksum is executing ...
ANDROID checksum is executing ...
CACHE checksum is executing ...
USRDATA checksum is executing ...
Wait untill phone will start charging.
All done.
writting imei 1

Quote:
Action : IMEI REPAIR.
Selected Lenovo:Lenovo S650
IMEI for write : 863981027038097
Repair IMEI Start.
Phone lcd must be on and unlocked.
If ask for SU acces, accept it.
Device have root
---NVRAM IMEI----

PHONE IMEI 1 :

PHONE IMEI 2 :

---------

WRITING IMEI[1] :863981027038097

---------

Writed OK.


writting imei

Quote:
Action : IMEI REPAIR.
Selected Lenovo:Lenovo S650
IMEI for write : 863981027038097
Repair IMEI Start.
Phone lcd must be on and unlocked.
If ask for SU acces, accept it.
Device have root
---NVRAM IMEI----

PHONE IMEI 1 : 863981027038097

PHONE IMEI 2 :

---------

WRITING IMEI[2] :863981027038097

---------

Writed OK.
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Old 01-29-2015, 21:17   #8 (permalink)
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Donate money to this user
http://forum.gsmhosting.com/vbb/f805...eport-1906557/
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Old 02-16-2015, 15:18   #9 (permalink)
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Quote:
Try to open control panel and check driver inf file and your vid_pid entry.
Evantually add manual coresponding vid and pid in inf file.
100% work solution. THANKS

USB\VID_17EF&PID_7438&REV_0255&MI_02
USB\VID_17EF&PID_7438&MI_02

Lenovo Yoga cdc
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