SM-G920T1 DRK Repair Possible? - GSM-Forum

Geofferey · 03-05-2016, 12:12

Is it possible to repair DRK using GCPro Key on an SM-G920T1 (TMB MetroPCS variant) not SM-G920T. Imei was repaired and is not original. I bought phone from repair shop and can't flash stock ROM because it freezes on first Samsung splash. This is known issue with IMEI repair & unlocking via cert. I do not have original IMEI .cert because phone was bought from shop. Feeling ripped off... Is there a way I can get device repaired remotely or can I buy a GCPro Key and know that it will work for sure %100. I do not want to waste $.

Recovery Reads:
dm-verity verification failed...
Need to check DRK first...

IMEI reads different in ODIN and on back of phone than in strings.

I can bypass dm-verity/damaged DRK by removing cache partition from stock DOJ9, repackaging and flashing through Odin but WiFi settings etc don't stick after reboots because CSC doesn't get applied until you enter recovery. If I go into recovery it does some sanity checks, sets some flags, applies CSC and won'tboot again until an eng kernel is flashed due to damaged root key and dm-verity failure. You can actually see the whole verification process in first recovery and second recovery logs

Also on another note none of the dial codes said to be used for GCProKey are working... I really just wanna fix this and know it can be done somehow.

stanner_austin · 03-05-2016, 12:29

@Geofferey
Hello
Its simple
if you have already void your phone warranty use rooting again if already rooted skip it go to next step.
Connect usb make sure adb on select option ENABLE_UART press start.. this because dial code not working (*#0*#)
Now connect in uart select box port select option DRK Repair press start.

Now its repaired you can reflash full stock won't stuck on samsung logo.(unless you have fully damaged your efs).

Geofferey · 03-05-2016, 19:09

So the SM-G920T1 is officially supported? I see no mention of it here or on the GCProKey site anywhere. It is extremely important that the program be compatible with SM-G920T1 or it will be a huge waste of $. Customeres for these types of repair are few and far between in my area. Is there anyway DRK can be repaired remotely instead ? That would probably be more affordable. Also if I purchase do I need to buy both the box and key in order to repair DRKs? Please be very informative if you wish for me to purchase products. I'm desperate to repair DRK on SM-G920T1 I have had many sleepless nights. There is no definitive indication that SM-G920T1 is compatible only SM-G920T/F etc are listed, not my specific model. If the device is compatible you should probably list it so people like me aren't asking "stupid" questions.

Geofferey · 03-06-2016, 07:58

What all do I need? Do I purchase GCPROBOX with card and GCPROKEY with card or GCPROBOX w/o card and GCPROKEY with card? Also how do you get device into uart & what about engineering bootloader/kernel. Do I need engineer shoot. Is Uni-kernel considered to be eng kern? Please reply I want to buy.

03-05-2016, 12:12	#1 (permalink)
Geofferey Junior Member Join Date: Mar 2016 Location: United States Age: 33 Posts: 7 Member: 2541368 Status: Offline Thanks Meter: 2	SM-G920T1 DRK Repair Possible? Is it possible to repair DRK using GCPro Key on an SM-G920T1 (TMB MetroPCS variant) not SM-G920T. Imei was repaired and is not original. I bought phone from repair shop and can't flash stock ROM because it freezes on first Samsung splash. This is known issue with IMEI repair & unlocking via cert. I do not have original IMEI .cert because phone was bought from shop. Feeling ripped off... Is there a way I can get device repaired remotely or can I buy a GCPro Key and know that it will work for sure %100. I do not want to waste $. Recovery Reads: dm-verity verification failed... Need to check DRK first... IMEI reads different in ODIN and on back of phone than in strings. I can bypass dm-verity/damaged DRK by removing cache partition from stock DOJ9, repackaging and flashing through Odin but WiFi settings etc don't stick after reboots because CSC doesn't get applied until you enter recovery. If I go into recovery it does some sanity checks, sets some flags, applies CSC and won'tboot again until an eng kernel is flashed due to damaged root key and dm-verity failure. You can actually see the whole verification process in first recovery and second recovery logs Also on another note none of the dial codes said to be used for GCProKey are working... I really just wanna fix this and know it can be done somehow.

03-05-2016, 12:29	#2 (permalink)
stanner_austin No Life Poster Join Date: Jan 2004 Location: Unknown Age: 39 Posts: 9,227 Member: 49752 Status: Offline Sonork: QQ:1474246528 Thanks Meter: 6,085	@Geofferey Hello Its simple if you have already void your phone warranty use rooting again if already rooted skip it go to next step. Connect usb make sure adb on select option ENABLE_UART press start.. this because dial code not working (#0#) Now connect in uart select box port select option DRK Repair press start. Now its repaired you can reflash full stock won't stuck on samsung logo.(unless you have fully damaged your efs).

03-05-2016, 19:09	#3 (permalink)
Geofferey Junior Member Join Date: Mar 2016 Location: United States Age: 33 Posts: 7 Member: 2541368 Status: Offline Thanks Meter: 2	So the SM-G920T1 is officially supported? I see no mention of it here or on the GCProKey site anywhere. It is extremely important that the program be compatible with SM-G920T1 or it will be a huge waste of $. Customeres for these types of repair are few and far between in my area. Is there anyway DRK can be repaired remotely instead ? That would probably be more affordable. Also if I purchase do I need to buy both the box and key in order to repair DRKs? Please be very informative if you wish for me to purchase products. I'm desperate to repair DRK on SM-G920T1 I have had many sleepless nights. There is no definitive indication that SM-G920T1 is compatible only SM-G920T/F etc are listed, not my specific model. If the device is compatible you should probably list it so people like me aren't asking "stupid" questions.

03-06-2016, 07:58	#4 (permalink)
Geofferey Junior Member Join Date: Mar 2016 Location: United States Age: 33 Posts: 7 Member: 2541368 Status: Offline Thanks Meter: 2	What all do I need? Do I purchase GCPROBOX with card and GCPROKEY with card or GCPROBOX w/o card and GCPROKEY with card? Also how do you get device into uart & what about engineering bootloader/kernel. Do I need engineer shoot. Is Uni-kernel considered to be eng kern? Please reply I want to buy.