iPhone 6 stuck at restore, no error message - Page 2 - GSM-Forum

kidgz · 11-14-2017, 19:34

Waiting for iphone.....? And no error at all on itunes

Cpu?

short_toground · 11-14-2017, 19:35

Couldn’t figure it out. Could be nand but don’t have programmer

short_toground · 11-20-2017, 16:12

Have an iPad 4 now doing same thing. Anyone ever fix this issue? This is what 3utools says but iTunes hangs at “waiting for iPad” forever and never throws a code

hardboy · 01-04-2018, 10:12

Quote:

Originally Posted by bios2000

- other PC
- new original USB cable
- external powered USB Hub
- changed lightning flex/port
- changed tristar
- changed tigris
- reballed NAND
- reballed baseband IC
- changed baseband PMIC
- changed PMIC

After all these changed still get the same error. Maybe some internal NAND problem (don't have a NAND programmer).

If you find a solution, I would be glad if you share it. Maybe for the next phone with the same problem...

Greetings

I had the same issue.
"fdrtrustdata" on 3uTools
But i do restore from iTunes in DFU mode and working fine.

eldavies · 05-08-2018, 22:29

Exact same issue here. Dies 20% in 3u sending FDRTrustData. Stuck in itunes forever.

Don't have a nand programmer but I know someone who does. gotta be a bad nand, I'd think.

IperDJ · 05-11-2018, 09:07

I had the same problem after changing the display and the home button. The phone worked perfectly for a week, after the phone got stuck in the boot loop. I tried to flash the firmware with 3uTools because I did not want to lose my data (basically my photos) because unfortunately I did not make a backup, but I stay still or at 20% or 38% where I read "writing filesystem". Has anyone managed to solve keeping the data?

rawmax · 05-11-2018, 09:28

posted to wrong post

jakenong · 07-09-2018, 18:27

Guys, i think if the phone still would jump to normal mode than its not U2.

kunal124 · 04-26-2019, 19:17

Quote:

Originally Posted by bios2000

Hi together!
I'm doing board repair as a hobby, just to see, what is fixable and what is not. Now I got an iPhone 6 that is not able to restore.

I tried the restore in iTunes and in 3utools. iTunes will stuck for ever (I let it sit for 2 hours without progress), 3utools will stop with a timeout at 20 percent ("Sending FDRTrustData"). The restore gets until the apple logo with progress bar and then nothing moves, no error message from iTunes. The device is still recognized by the computer. I tried on another PC, and other USB cables, new battery all the same.

At first I tried another connector - still the same. Then changed tristar - still the same. What I noticed yesterday was that in the moment where everything stops (when the apple logo with the progressbar appear) the PP5V0_USB drops from 5V to about 4.5V. At this time the phone draws about 0.5 amps over the USB. PP3V0_TRISTAR, PP1V8_SDRAM, PP_VCC_MAIN are all normal readings. No signs for liquid damage.

Any one an idea what it could be/what I could check next?

Thanks and greetings

hiii same problem occurred with my device to

i just removed a shorted capacitor near nand

and it worked.

hope it works for you

Thankyou

Dodgytech · 09-23-2019, 16:24

Hopefully it's okay to jump into this thread as it's the same topic as I was going to post. I have an iPhone 7 stuck in a recovery loop. Using 3u, it gets stuck at Sending FDRTrust Data. I've tried using recover mode as well as putting the phone in DFU mode. In iTunes, it gets stuck at verifying update/verifying restore.

Has anyone had any success in resolving this issue? Is there anything I can try? Not afraid to open the phone (already have replacement adhesive seals ready).

Where does 3u send this information (RootTicketNORData, FDRTrustData, etc.)?

lklock · 10-04-2019, 15:59

Hi all,

Have same problem here (stuck on sending FDRTrust data) while trying to restore an ipad Air 2 after unsucessful upgrade to iPadOS 13...went to the local Apple premium reseller, and they couldn't update it neither...

I tried with ITunes, 3utools and idevicerestore...does anyone have an idea how to fix this

?

short_toground · 10-04-2019, 16:13

I think it’s nand related

Dodgytech · 10-07-2019, 11:02

Quote:

Originally Posted by short_toground

I think it’s nand related

What does this mean exactly? Is it that the NAND is physically faulty and needs to be swapped out, or is it that the NAND needs to be reflashed (and thereby creating a new phone with a new IMEI)?

How do iDevices end up in this state in the first place?

simpleprince49 · 12-16-2019, 20:33

i have this problem on iphone 8 plus came with stock on logo..when i try to restore in 3utools its stock on sending fdrdata and yes in itunes its stocks forever without error..i change the nand just to test if that is the prob and yes it restores fine with the other nand from a donor iphone 8 plus board..but it did not activate because of serial issue..so yes i confirm this problem is related to nand..

11-14-2017, 19:34	#16 (permalink)
kidgz Freak Poster Join Date: Jul 2007 Location: Circuitcorner Posts: 463 Member: 551599 Status: Offline Thanks Meter: 139	Waiting for iphone.....? And no error at all on itunes Cpu?

11-14-2017, 19:35	#17 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	Couldn’t figure it out. Could be nand but don’t have programmer

11-20-2017, 16:12	#18 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	Have an iPad 4 now doing same thing. Anyone ever fix this issue? This is what 3utools says but iTunes hangs at “waiting for iPad” forever and never throws a code

05-08-2018, 22:29	#20 (permalink)
eldavies Junior Member Join Date: Oct 2015 Posts: 28 Member: 2474430 Status: Offline Thanks Meter: 3	Exact same issue here. Dies 20% in 3u sending FDRTrustData. Stuck in itunes forever. Don't have a nand programmer but I know someone who does. gotta be a bad nand, I'd think.

05-11-2018, 09:07	#21 (permalink)
IperDJ Junior Member Join Date: Nov 2008 Location: Italia Age: 45 Posts: 14 Member: 909257 Status: Offline Thanks Meter: 1	I had the same problem after changing the display and the home button. The phone worked perfectly for a week, after the phone got stuck in the boot loop. I tried to flash the firmware with 3uTools because I did not want to lose my data (basically my photos) because unfortunately I did not make a backup, but I stay still or at 20% or 38% where I read "writing filesystem". Has anyone managed to solve keeping the data?

05-11-2018, 09:28	#22 (permalink)
rawmax Insane Poster Join Date: Dec 2016 Posts: 72 Member: 2659227 Status: Offline Thanks Meter: 7	posted to wrong post

07-09-2018, 18:27	#23 (permalink)
jakenong Junior Member Join Date: Jan 2016 Posts: 4 Member: 2511720 Status: Offline Thanks Meter: 1	Guys, i think if the phone still would jump to normal mode than its not U2.

09-23-2019, 16:24	#25 (permalink)
Dodgytech Junior Member Join Date: Sep 2019 Location: 3rd rock from the Sun Posts: 2 Member: 2929049 Status: Offline Thanks Meter: 0	Hopefully it's okay to jump into this thread as it's the same topic as I was going to post. I have an iPhone 7 stuck in a recovery loop. Using 3u, it gets stuck at Sending FDRTrust Data. I've tried using recover mode as well as putting the phone in DFU mode. In iTunes, it gets stuck at verifying update/verifying restore. Has anyone had any success in resolving this issue? Is there anything I can try? Not afraid to open the phone (already have replacement adhesive seals ready). Where does 3u send this information (RootTicketNORData, FDRTrustData, etc.)?

10-04-2019, 15:59	#26 (permalink)
lklock Junior Member Join Date: May 2007 Location: Metz, France Posts: 3 Member: 518225 Status: Offline Thanks Meter: 0	Hi all, Have same problem here (stuck on sending FDRTrust data) while trying to restore an ipad Air 2 after unsucessful upgrade to iPadOS 13...went to the local Apple premium reseller, and they couldn't update it neither... I tried with ITunes, 3utools and idevicerestore...does anyone have an idea how to fix this ?

10-04-2019, 16:13	#27 (permalink)
short_toground No Life Poster Join Date: Jul 2016 Posts: 536 Member: 2598526 Status: Offline Thanks Meter: 52	I think it’s nand related

12-16-2019, 20:33	#29 (permalink)
simpleprince49 No Life Poster Join Date: Feb 2009 Location: inside apples a15 Posts: 886 Member: 975554 Status: Offline Sonork: KG state:prenormal Thanks Meter: 253	i have this problem on iphone 8 plus came with stock on logo..when i try to restore in 3utools its stock on sending fdrdata and yes in itunes its stocks forever without error..i change the nand just to test if that is the prob and yes it restores fine with the other nand from a donor iphone 8 plus board..but it did not activate because of serial issue..so yes i confirm this problem is related to nand..