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[Q] Safe to restore nandroid backed up with fake flash?

I have a kind of complex, quick question. After I rooted stock but before I flashed CM7 on my G2x, I followed the guide on the CM wiki for flashing clockworkmod recovery through ROM Manager and ended up "fake flashing" my phone back to factory settings. However, I made a nandroid backup first and then followed the guide here on XDA for flashing NVFlash using the NVIDIA drivers, and successfully flashed CM7. My question is, I want to go back to stock to upgrade to the OTA with the new baseband and was wondering if it's safe to flash that backup i made with the clockworkmod recovery that fake flashed my phone or if I should just play it safe and download the stock 2.2 rom listed on the guide here?
http://forum.xda-developers.com/showthread.php?t=1088728
Thanks for your help.

I went ahead and flashed the backup in question and it seemed to work. I then reverted everything to stock (ROM, recovery, unroot), tried the LG updater which failed, bricked my phone (stuck on S/W Upgrade), followed the unbrick guide, and successfully got GB OTA running on my phone, so mods can close this thread.

[Q] Can't boot on custom roms

Hey,
I recently unlocked my phone using HTCDev.com and rooted it.
At first I couldn't get CWM Recovery on it using ROMManager (even though Rommanager said it was installed it loaded to the default recovery) but I got it on there using adb.
Now when I try to flash any Rom it'll just get stuck on the white screen with green HTC text.
When I restore to my backup of the default rom it'll just boot as normal.
I have HBoot 2.00.0002 (Sense 3.0 update) S-ON (unlocked).
I tried flashing it using Rommanager, CWMRecovery, manually wiping the Cache, Data and Dalvik using CWM, I tried flashing in CWM and I tried both MIUI and Cyanogenmod.
Anyone knows what I'm doing wrong?

RichieHeijmans said:
Hey,
I recently unlocked my phone using HTCDev.com and rooted it.
At first I couldn't get CWM Recovery on it using ROMManager (even though Rommanager said it was installed it loaded to the default recovery) but I got it on there using adb.
Now when I try to flash any Rom it'll just get stuck on the white screen with green HTC text.
When I restore to my backup of the default rom it'll just boot as normal.
I have HBoot 2.00.0002 (Sense 3.0 update) S-ON (unlocked).
I tried flashing it using Rommanager, CWMRecovery, manually wiping the Cache, Data and Dalvik using CWM, I tried flashing in CWM and I tried both MIUI and Cyanogenmod.
Anyone knows what I'm doing wrong?
Click to expand...
Click to collapse
Yes. Unlocking with htcdev leaves your device S-ON, and stops the rom installers from flashing boot.img. So you're left with custom rom, and stock 3.0 kernel. Might work with sense 3.0, but flash any 3.5 rom and you're stuck at boot.
You need to:
- open the custom rom and extract boot.img
- flash the custom rom by the usual way
- flash boot.img manually using fastboot (look for instructions here in xda)
- and....
- ...
- wait for it...
- ...
- search first before you start a new thread. This has been answered many times here in this sub-forum.
Cheers

Or at least look in the index (see the last link at end of my Sig) this is covered by one of the guides
Swyped from my Desire S using XDA Premium

Hi!
I just flashed CyanogenMod 7.1 ROM, and then flashed it's boot.img with "fastboot flash boot" and that worked well! But i did'n like that rom, so i restored Hyperion ROM in cwm recorvery and it did stuck on the htc -logo. I thought that may be the CyanogenMod boot images fault, and i flashed Hyperions boot image and then it booted normally!
So, until I get my phone S-Off(now unlocked via htcdev) do I need always flash a new boot image if I dont come from ROM wich have same kernel that the ROM what I'm flashing?
Sorry for my english!

TooByAas said:
Hi!
I just flashed CyanogenMod 7.1 ROM, and then flashed it's boot.img with "fastboot flash boot" and that worked well! But i did'n like that rom, so i restored Hyperion ROM in cwm recorvery and it did stuck on the htc -logo. I thought that may be the CyanogenMod boot images fault, and i flashed Hyperions boot image and then it booted normally!
So, until I get my phone S-Off(now unlocked via htcdev) do I need always flash a new boot image if I dont come from ROM wich have same kernel that the ROM what I'm flashing?
Sorry for my english!
Click to expand...
Click to collapse
You have summed it up well. The answer is Yes till you get s-off.
Sent from my HTC Desire S using XDA App

[Q] nandroid backup aint working

i took a nandroid backup of my stock rom ginger bread .. then i updated it to cm 10.1 now i wanna go back to my stock rom i see the file it loads aswell but when u reboot it just stucks on the black screen ..
i fully wiped evrything but still am having the same problem

Are you s-off or s-on unlocked? If you're not s-off, you have to yank the boot.img from the nandroid backup and fastboot flash it using your desktop.

Same thing happened to me returning to 9.1. I am s-on, unlocked. Fastbooting the boot.IMG fixed it.

[Q] Unable to restore TWRP backup

Hi all.
I unlocked my DS (4.0.4) using Desire S All-In-One kit 2.0, flashed TWRP, and rooted. Phone is S-ON
I took a backup with TWRP, and flashed a new ROM. After the flash, I also flashed the boot.img as I read in the XDA forums and elsewhere.
Everything went fine, I flashed anothe ROM, same procedure, no problem.
After playing with ROMs, I decided to restore the TWRP backup I took before starting.
It just boots into TWRP again. I tried flashing the stock boot.img (which I extracted from the official EU 4.0.4 RUU), but no luck. The phone stays at a black screen after the HTC logo.
I can flash any other ROM, flash the boot.img and I am good to go, I just cannot restore my backup.
Any solutions?

in order to restore backup, you have to flash your backup and the corresponding boot.img
Sent from my supercharged :tank:

hisname said:
in order to restore backup, you have to flash your backup and the corresponding boot.img
Sent from my supercharged :tank:
Click to expand...
Click to collapse
I did.
After the restore, I flashed the boot.img in the official RUU.
That's all I have anyway, as the one in the backup is in a different format (it has a different size anyway).
Is there another source I can get the ICS boot.img to flash?
I tried some other boot images and it didn't work.
As an experiment, I tried restoring another twrp backup from another rom I tried before, and it also didn't work, even after flashing its own boot.img it originally came with.
Today I tried a method of just booting into recovery (temporary recovery) which has (allegedly) the ability to restore the kernel, with no luck.
I can only restore with the same rom.

[Q] Noob error flashing. Need help recovering.

Hi,
Sorry - attack of the noobie. I've messed up putting a custom ROM on my ICS Desire S and need help recovering to a state where I can restart the process.
I'll detail the process but I've basically wiped the standard ROM but failed to get S-OFF for hboot2.02.0002 so the device freezes after the HTC splash-screen. I'd like to try to get it back to stock so I can try again. But no backup.
Details:
I tried to follow a set of instructions from the MIUI blog: http://en.miui.com/a-107.html
I downloaded the MIUI 3.12.27 ROM and copied to sdcard
Got the g12 flashing tools and android sdk (windows 7)
Went to recovery mode and discovered HBOOT version 2.02.0002
Went to revolutionary to get s-off but realised there was no tool for my version of hboot.
MISTAKE1: went to htcdev to use unlocking tool, assuming this was S-OFF too.
Followed htcunlock instructions to unlock bootloader and continue process.
Flashed clockworkmod recovery
Nandroid backup
Wipe-data/factory reset & wipe cache
Installed from sd card
Rebooted and screen went black (though backlit) after the HTC splash-screen.
had a dig about forums and tried different custom ROMS but with no improvement.
MISTAKE2: in order to make room for extra ROMS on the sd card, I deleted the Nandoid backup from the card - thinking I had copied it to the PC but hadn't.
Realised it was still S-ON, I found instructions to downgrade hboot (http://forum.xda-developers.com/showthread.php?t=1318919) but I need to get my devices back to running stock ICS first.
I've got the official HTC RUU for ICS - but the installation procedure assumes I have a working OS to run HTCsync against. I only have recovery.
So I'm after some help before making matters worse.
As I understand it, I need to relock the bootloader and get the official ICS RUU reinstalled (AND BACKED UP) but I'm not sure how to do that from the state the phone is in. Can I push the standard ROM back on there from recovery and get it working again?
Thanks

Your other option is to flash the boot.img from the rom you installed through fastboot. (and repeat any time you install a new Rom or updated rom version, while your phone is still s-on)

teadrinker said:
Your other option is to flash the boot.img from the rom you installed through fastboot. (and repeat any time you install a new Rom or updated rom version, while your phone is still s-on)
Click to expand...
Click to collapse
Wonderful - thanks - saved me hours.