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Go Back   GSM-Forum > Product Support Sections > Special Solutions / Services / WebShop > GPGIndustries Support section > Distributed Devices by GPG > GCPro Key

 
 
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Old 11-18-2017, 13:56   #1 (permalink)
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N910F GCPRO Get error in DRK repair, loock please


Hello, i've one N910F that after one Downgrade for write Cert and "Reset Msl", (all goes good), now get DRK Key error.

I've tryed with GCPro 58 by ADB and with UART cable, but not want repair this DRK Key.

Here Log with UART cable:
Quote:
Using Version...1.0.0.0051
Selected Port Com:111
Selected Model GT-I5500
Selected Task SAMSUNG DRK FIX

Started Samsung DRK Fix...

Phone Found Wait...
TEST MODE OK..
Details. SM-N910F,MP 0.900,N910FXXU1DPE1,N910FXXU1DPE1,N910FXXU1
Model := SM-N910F
UNIQID := CR200E20FCA9134
Phone IMEI := 355*********
Phone MEID := null/empty
Default MSL NO NEED RESET EFS...
ROOTKEY FAIL..fYxLDoAgEEOvxAhOdclHrvHufwsEVm5MmpemaRszsaGC OnH5TVV0I0OOdyT0YJVAnm1Pc/DKD9zRiRJWPhdh9xfa32jmRroG

!!! Fail !!!!
Total Time Take...00:02:34
Where's the problem?

Br
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Old 11-18-2017, 15:32   #2 (permalink)
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Hello
Bad efs partition or phone do not accept drk repair method gcpro use.
Only way to make sure is write other phone efs(not security) to such phone.
Do not restart it & make drk repair via uart.
After that format or reflash to check.
 
Old 11-18-2017, 15:57   #3 (permalink)
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Quote:
Originally Posted by stanner_austin View Post
@allumts
Hello
Bad efs partition or phone do not accept drk repair method gcpro use.
Only way to make sure is write other phone efs(not security) to such phone.
Do not restart it & make drk repair via uart.
After that format or reflash to check.
Yes, but if i write other phone EFS, i lost my full Writed cert for "Imei Repair", phone had this issue and i solved Downgrating and "RESET MSL".

With most recent fw version not allowed of "Reset Msl" and write Cert.

Anyway, phone is working good, call, go in 4G, wifi ok itc...., i see this "DRK Key" error only if enter manually in Recovery Mode, otherwise phone Not autoreboot, work good, Imei is repaired....

You think i can leave in this mode?
 
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Old 11-20-2017, 13:48   #4 (permalink)
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Quote:
Originally Posted by allumts View Post
Yes, but if i write other phone EFS, i lost my full Writed cert for "Imei Repair", phone had this issue and i solved Downgrating and "RESET MSL".

With most recent fw version not allowed of "Reset Msl" and write Cert.

Anyway, phone is working good, call, go in 4G, wifi ok itc...., i see this "DRK Key" error only if enter manually in Recovery Mode, otherwise phone Not autoreboot, work good, Imei is repaired....

You think i can leave in this mode?
Hello, I too have had the same problem on a galaxy s7 edge, having done the repair imei and phone line network and wifi internet network and work calls the network 3 g and 4 g works but putting the phone into recovery mode to do the restore d the factory through wipe data factory reset seemed the red lettering dm verify identification failed, I solved it doing the key root the phone drk using cf autoroot and I do see the attached

https://postimg.org/image/n6duri6w1/
https://postimg.org/image/jmrx1uwi9/
 
Old 11-20-2017, 14:27   #5 (permalink)
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S7 Edge sure you talk for Exinos Series and anyway this S7 series can solve very easy just flashing 4 part file fw take out from SmartSwithc TIP.

Have done a lot of these S7 Exinos just with above tip.

For Qualcomm series GCpro repair it w/o any issue.

Note 4, (N910F), is totally diffrent phone types, is one Qualcomm not easy of repair DRK Downgrated from last FW of Sept 2017....sure Samsung have put some type of New protection, becouse many others Downgrated from old Build like Oct 2016 i've repaired DRK very easy.
 
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Old 11-21-2017, 08:38   #6 (permalink)
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Hello
qcom do not have security on efs. its on modemstx you can read write efs.. but before restart just do DRK Repair with uart.
 
 

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