Database Users

[Q] Trying to restore to stock - hangs on N logo

I am trying to restore my nook color to stock and am running into an issue with it hanging at the N logo on reboot.
I've gone through several different recovery docs which basically point down the same path of
boot from a CWM recovery SD
Format /system and /data
apply the stock ROM
I've also formatted /boot and applied several different stock boot partition images (including the repartition-boot-with-stock fix). I'm _pretty_ sure the boot partition is OK because I get past the "Touch the Future of Reading", the inital N logo, and gets to the N logo with the "Contains Reader Mobile technology by Adobe Systems".
Unfortunately it simply hangs there forever (I've left it overnight).
I have also tried the
I'm sure it's something simple I've missed here, but at this point I'm stumped.
Any thoughts on what I can do to recover my nook would be greatly appreciated.
Thanks!

I was having the same problem. The "8 failed boots" method here got me back to stock. I'm feeling MUCH better now!!
http://nookdevs.com/NookColor/RestoreToStock

Thanks so much for the suggestion, unfortunately my Nook is now hung @ the "Touch the future of Reading" screen. Time to try and re-flash the 1.0.1 recovery images.

As an update I was able to get back to working stock 1.0.1. From a recovery SD I formatted /boot, /system, and /data. Then applied the "repartition-boot-with-stock.zip" and then "nook-complete-restore-1.0.1.zip". reboot and I'm all good.
Thanks!

[Q]New kernel refuses to boot, how to get a rescue?

OK, this mat have been asked many time, but none of the thread I found applies to my case.
My device is Nexus 7 16Gb Wifi, the internal ROM is stock 4.1.2 (I cannot use 4.2.2 because of a backward compatibility issue for an app I have to use)
The recovery is the latest TWRP 20030227 version, with MultiROM bootloader 4.18. An armhf raring build of Ubuntu is also installed in the internal sdcard and all have worked fine until I tried to flash a alternative kernel.
The new kernel I flashed is the M-kernel mr1.1. I flashed it by booting into recovery and chose to install the M-kernels zip file from there. After I have got a kernel flash successful message I chose to reboot system. Then the weird thing began: at first the device seems to be booting because I saw the usual Google logo and then it turned into the boot animation with a colorful cross in the middle of the screen. But then on nothing seems to follow. The boot animation persists forever. I hve also noticed that during the initial boot it somehow skipped the step of choosing ROMs as usual (because I have Ubunto installed), so I also lost the choice of booting into Ubuntu.
I have to press the power button for more than 10 seconds to power off the device. Then I tried to boot into fastboot mode and recovery mode, both works file, so it still looks not bad. I have kept a copy of my working patched kernel which is kernel_kexec_41-2.zip. Booting into recovery and using the command
adb push kernel_kexec_41-2.zip /sdcard/
I managed to copy this zip into the device. Then, once again, I tried to flash this old kernel by installing it in the recovery. The installation exited with a success. However, when I tried to reboot the device, it is still stuck on the boot animation screen. No choose ROM screen either. So, I am totally lost. Can anybody give some hint on where I was doing wrong and how can I get my device working again without totally reflashing a stock rom and loosing all data I have installed previously? Many thanks.

Any helps please.

Let me update the situation. Tried to wipe cache/Dalvik and reflash the kernels (both the original and the newly downloaded omega3 kernel, both changed nothing -- always stuck in the boot animation. Tried MultiROM->Advanced->Inject curr.boot.sector, the screen allowing to choose rom reappeared and from there Ubuntu boots correctly. However, If the internal ROM is chosen in that screen, the device reboots and stuck in the boot animation screen again.

How about if you make a backup?
Then - no matter what follows - no matter what experiments you do - you can always restore just the /data partition. Or any of the other partitions.
Frankly, you should have done it already, but nothing is stopping you from doing it now.
Backups give you power - and freedom - to experiment with very few risks.
good luck.

Thanks! I didn't realize that I can still make a backup even the system is already broken. Did the backup for the data partition and reflashed the stock rom, it now boots ok. Even though I still lost the desktop configuration and the Ubuntu installation.

instanton said:
Thanks! I didn't realize that I can still make a backup even the system is already broken. Did the backup for the data partition and reflashed the stock rom, it now boots ok. Even though I still lost the desktop configuration and the Ubuntu installation.
Click to expand...
Click to collapse
Had it happened that you still had a bootloop after dirty-flashing /system and/or boot (without doing the custom recovery "factory reset" wipe of /data exclusive of /data/media), a backup can still save your bacon: it can be restored and then manually:
- all system app related /data/data/ and /data/app-lib/ folders removed
- all system app updated .apks in /data/app/ deleted
- wipe dalvik-cache
This leaves all market apps and their data intact while starting from scratch from with the base ROM's system apps. Probably doing that reduces the chances of boot loops.
UID mismatch troubles can still occur if you are coming from a "debloated" ROM and dirty-flashing something like a stock ROM (where there are more system apps than in the prior ROM which generated the /data partition); but I think that TWRP's "fix permissions" should take care of that.
But anyway - backups give you flexibility.

[Q] unable to mount /system or /cache ||| no OS installed ||| sideload wont work

hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)

IchStelleDummeFragen said:
hey guys, im back with stupid questions...
I wanted to upgrade my Nexus 7 32gb UMTS to 4.3 and used the Nexus 7 Toolkit (by Mark Skippen).
I was on a custom Rom and wanted to get back to Stock, so i could just use the update process by Google.
Downloading and Installing the ROM (including wipe of user data) by the Toolkit seemed to work and didnt show any error messages.
As is tried to boot my device into Android I got stuck in the bootloader.
When I tried to start it, a small white message "Booting failed" appeared in the top left corner. Nothing else happend.
I did everything again, no changes.
Next step was to google for a few mins, then I tried to install a custom recovery via Toolkit (which worked) and install a zip-file Rom via sideload.
Connection was there, the files got pushed onto the device but then "An Error Occured" popped up and everything stopped.
Installing a zip via usb-otg seemed promising, but this got me errors like "unable to mount /system" and "unable to mount /cache"...
when I tried to reboot from TWRP or ClockwordMod Recovery (tried the earlier described things with both recovieres) I got a message saying
"there is no OS installed, are you sure you want to reboot?"
Please help me, I really dont know how to fix this and I will need my Nexus 7 in 2 days (thats why I tried to reinstall and polish everything )
thanks for your help, I really appreciate it
Edit: tl;dr
Stuck in fastboot, no OS is installed. sideload / installing ROM via ADB / installing ROM via usb-otg doenst work, most certainly because /system and /cache cant be mounted
so AFAIK the real problem is that I cant mount those partitions, otherwise I could install a ROM and get out of fastboot/recovery easily. (just mounting them in custom recoveries didnt work btw)
Click to expand...
Click to collapse
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
As long as you have access too fast boot everything can be fixed at least w.r.t software.

Red Devil said:
Well . what you can try for now is download the latest factory images and flash them manually via fastboot .. See how that turns out. You can install any ROM via fastboot .. No issues what so ever.
In the factory images there will be a bootloader IMG.. Flash that first and then flash the remaining images ( I suggest manually or via the .bat or .sh files ) and then see if you can boot up android. Mostly should be possible.
Click to expand...
Click to collapse
It worked!!! Thank you so much.
Still wondering why it didnt flash the factory image as a whole while flashing every part step by step worked perfectly fine...
Red Devil said:
And did you try rebooting inspire of the message " no is installed " appearing on the screen ? Maybe it will boot a ROM ? I remember facing this message after just flashing a rom sometimes. So don't worry.
Click to expand...
Click to collapse
Yes, tried booting, but the device just restarted and returned to fastboot mode.
many thanks again

help plz
this is where I am at as well how do you get out of this. kinda a noob at this so a step by step would be great thanks

[Q] Can't flash recovery zip

Hi,
I'm at my wits end. I had SlimRom installed for a week and all was fine, but I was curious about what new ROMs were out there so I backed up my phone using ROM Manager and did all the usual stuff to get a new ROM. I installed Gummy, but didn't like it; I installed one other ROM that I can't remember its name, but also didn't like that. I realized my comfy home of SlimRom was where I wanted to be, so I tried to flash the backup.zip that I had created but it kept saying installation aborted (Status 0).
After hours of countless attempts and just weird behaviour (sometimes boot loops, sometimes not booting into recovery, etc.) I finally got my phone back to stock.
I downloaded the latest SlimRom file 3 times to make sure it wasn't a corrupt zip (twice from my PC and once from my phone directly). Both the zip directly from Slim as well as the backup.zip that I made with ROM Manager give me the same installation aborted. The other error it gives is "E: Error in /data/media/0/slim....zip". I'm wondering if somehow my partition is screwed up. I tried using Odin's repartition, which just erased my recovery partition, but I got that back thankfully! When I wipe data/factory reset it says wipe complete (and the ROM does reset to factory) but it also says "E:unknown volume '/sdcard/.android_secure' "...I'm wondering if that relates to why the backup.zip file won't read properly. Maybe the partition got screwed up somehow?
I can flash a SU zip so it's not a flashing problem, per se. And thankfully Odin always works!
I think I may need the stock PIT file for the Telus S4 l337m

UPDATE:
I think I found the proper pit (SGS-I337_16GB) but my phone says "secure check fail: pit".

S8 File transfer issue

Hi guys, this might be a more general question, but I just installed TWRP on my S8 G950F and that seems to work OK. I went to install TeamExy rom, flashed BL and CP, AROMA installer seemed ok but phone would never finish booting. I went to reflash the rom and try to install from internal storage rather than SD, but noticed the file transfer stops in Windows before the progress bar reaches the end. I've tried 2 different PCs with exactly the same result. Doing file ZIP signature check results in a fail. I have wiped the phone, it was erroring about preload which i rebuilt the partition and it doesn't error anymore, but still the same problem. Anyone else had this and knows how to fix it??
thanks!