Reading an NV item that is read AND write protected - GSM-Forum

ecs87 · 08-28-2014, 23:31

Hello again reverse engineering visitors :-)

I was wondering if anyone had any success reading "access denied" nv items on Samsung devices? In particular I'm working on the N900P and G900P. I'm trying to access nv item 10124. It appears to be read and write protected. Clearing the EFS does nothing to gain access to it, sending the SPC and 16 character password also doesn't clear the protection on it, you can't use QPST EFS explorer because the /nvm/num folder is locked (yes even after sending the 16 character password and SPC), and DFS and CDMA workshop aren't able to access the item either. I'm kinda stumped here. Any ideas/input is welcome!

For those wondering...nv item 10124 on Sprint Samsung devices house the international unlock switch ;-)

dest · 08-29-2014, 06:50

You can't read/write that NV. Only possible to see just how the phone unlocks itself(OTA) and try to work with that.

ecs87 · 08-29-2014, 15:07

As always dest, your input is appreciated :-)

08-28-2014, 23:31	#1 (permalink)
ecs87 Banned Join Date: Nov 2013 Location: Chicago, IL Posts: 995 Member: 2076039 Status: Offline Thanks Meter: 648	Reading an NV item that is read AND write protected Hello again reverse engineering visitors :-) I was wondering if anyone had any success reading "access denied" nv items on Samsung devices? In particular I'm working on the N900P and G900P. I'm trying to access nv item 10124. It appears to be read and write protected. Clearing the EFS does nothing to gain access to it, sending the SPC and 16 character password also doesn't clear the protection on it, you can't use QPST EFS explorer because the /nvm/num folder is locked (yes even after sending the 16 character password and SPC), and DFS and CDMA workshop aren't able to access the item either. I'm kinda stumped here. Any ideas/input is welcome! For those wondering...nv item 10124 on Sprint Samsung devices house the international unlock switch ;-)

08-29-2014, 06:50	#2 (permalink)
dest No Life Poster Join Date: Jun 2004 Location: USA Age: 39 Posts: 1,142 Member: 67927 Status: Offline Thanks Meter: 108	You can't read/write that NV. Only possible to see just how the phone unlocks itself(OTA) and try to work with that.

08-29-2014, 15:07	#3 (permalink)
ecs87 Banned Join Date: Nov 2013 Location: Chicago, IL Posts: 995 Member: 2076039 Status: Offline Thanks Meter: 648	As always dest, your input is appreciated :-)