Hi guys,

First of all, I'm new here but i've been using the community's ressources for quite a lot of time. Thanks guys, you're doing great.

I'm having a major issue with my iPhone 3GS (os 4.0.1, jailbreakme). Two days ago, I decided to reboot it. I'm now stuck in the boot sequence: the Apple logo shows up for a minute or two. Then, a spinning wheel appears, stays for about 2 other minutes and then the iphone shuts down a reinitiate a booting sequence. And that over and over again.

What I've tried so far:

- home button + power button for ten seconds
- restore the 4.0.2 firmware with iTunes (both in recovery mode and DFU mode and with two different computers)
- using iRecovery; here's the output:

=======================================
::
:: iBoot for n88ap, Copyright 2009, Apple Inc.
::
:: BUILD_TAG: iBoot-636.66.33
::
:: BUILD_STYLE: RELEASE
::
:: USB_SERIAL_NUMBER: CPID:8920 CPRV:14 CPFM:03 SCEP:03 BDID:00 ECID:00000086721DA30E IBFL:01 SRNM:[88924LBT3NP]
::
=======================================

[FTL:MSG] Apple NAND Driver (AND) RO
[NAND] Found Chip ID 0x3294D79876 on FMI0:CE0
[NAND] Found Chip ID 0x3294D79876 on FMI0:CE1
[NAND] Found Chip ID 0x3294D79876 on FMI:CE8
[NAND] Found Chip ID 0x3294D79876 on FMI1:CE9
[FTL:MSG] FIL_Init [OK]
[FTL:MSG] BUF_Init [OK]
[FTL:MSG] FPart Init [OK]
read new style signature 0x43313133 (line:375)
[FTL:MSG] VSVFL Register [OK]
[FTL:MSG] VFL Init [OK]
[FTL:MSG] VFL_Open [OK]
[FTL:MSG] YAFTL Register [OK]
yaFTL::YAFTL_Open(l:2630): CXT is not valid . Performing full NAND R/O restore ...
[FTL:MSG] FTL_Open [OK]
Boot Failure Count: 6 Panic Fail ount: 0
Entering recovery mode, starting command prompt
(Recovery) iPhone$

CXT is not valid? I have no idea what this means but it doesn't sound good.
Plugging some iRecovery instructions doesn't work:

Entering recovery mode, starting command prompt
(Recovery) iPhone$ clearenv 1
(Recovery) iPhone$ printenv
(Recovery) iPhone$ seten auto-boot true
(Recovery) iPhone$ saveenv
(Recovery) iPhone$ fsboot
(Recovery) iPhone$

No output...

I'm left clueless. I have read dozens of forum threads and I've not been able to figure it out. Needless to say that my phone is out of warranty.


What's next:

I'm planning to perform these operations:

- try to downgrade to 3.1.3 (I saved my shsh at the time)
- find a way to erase the nand (but i don't know how)

Do you guys have any guess about what to do?

Thanks,

Jacques-Henri.

Originally Posted by Jacques-Henri

Hi guys,

First of all, I'm new here but i've been using the community's ressources for quite a lot of time. Thanks guys, you're doing great.

I'm having a major issue with my iPhone 3GS (os 4.0.1, jailbreakme). Two days ago, I decided to reboot it. I'm now stuck in the boot sequence: the Apple logo shows up for a minute or two. Then, a spinning wheel appears, stays for about 2 other minutes and then the iphone shuts down a reinitiate a booting sequence. And that over and over again.

What I've tried so far:

- home button + power button for ten seconds
- restore the 4.0.2 firmware with iTunes (both in recovery mode and DFU mode and with two different computers)
- using iRecovery; here's the output:




CXT is not valid? I have no idea what this means but it doesn't sound good.
Plugging some iRecovery instructions doesn't work:



No output...

I'm left clueless. I have read dozens of forum threads and I've not been able to figure it out. Needless to say that my phone is out of warranty.


What's next:

I'm planning to perform these operations:

- try to downgrade to 3.1.3 (I saved my shsh at the time)
- find a way to erase the nand (but i don't know how)

Do you guys have any guess about what to do?

Try this: iPhone – Rock App Causing Devistation | Router Jockey

Your problem is (likely) due to a bug in rock.app (cydia alternative)