[HOW-TO] Install CWM [VERIFIED][Update 1/22/2012]
- Thread starter Goncezilla
- Start date
Didnt work
The SDcard method didn't work for me with my Nook Tablet 7" BNTV450 and I unfortunately cannot access adb as my device is in an orange state bootloop
I'm working on this thread to show others how I've gotten CWM running off of my NT.
This will be broken out into 2 sections: SDCard Execution and Internal Installation. I've verified that backup and restore works using both of these methods.
First I would like to thank Bauwks and Nemith who have developed the u-boot crack and recovery.img used in this process. Here are some of the threads that I used for this process:
http://xdaforums.com/showthread.php?t=1440645 - Nemith's CWM recovery.img
http://xdaforums.com/showthread.php?t=1440438 - Next steps and Bauwk's internal image build process
METHOD 1 - SDCARD :
1. Setup SDCard
Using a new SDCard (not one you have info stored on) make a new MSDOS partition table and add a 50 MB FAT32 partition as the first primary partition. Then make sure you enable to boot and lda flags.
Any SDCARD larger than 50 MB should work but I used an extra 2GB laying around. You can add other partitions to the card if you want, but it is not necessary to allocate the entire card. Any added partitions would need to be manually mounted on your Nook anyway.
I used GParted on my Ubuntu machine to do this but any formating tool should work.
2. Copy Files onto SDCard
You can grab the files I used here:
http://www.mediafire.com/?dr6bqau194389te
Just UnZip the files directly to the root of the boot partition you created above (make sure flashing_boot.img, u-boot.bin, and boot.img are on the root not the folder SDCARD)
3. Insert SDCARD into NT
Now, with your NT powered off, eject the SDCARD you just created from your computer and insert it into the tablet. Then just turn it on and VOLA! You should now be in CWM!
You can then insert another (larger, preferably 16 GB +) SDCard and do a full backup.
METHOD 2 - Internal Installation:
ADB REQUIRED!!!!!
Make Sure you have Method 1 working before trying this! It is a good idea to have already backed up your device before proceeding.
Update 1/19/2012: I've modified the internal recovery.img to automatically execute the code in Step 4 which seems to have finally fixed the boot-loop. Now you can use CWM internally without having to be around your computer! Please see Pg 7 for details on how I fixed this issue.
Update 1/22/2012: I'm removing the warnings since this method seem to be verified by a lot of different sources. It looks like Indirect beat me too an APK so please see his thread if you want an easier way to install this:
http://xdaforums.com/showthread.php?t=1458630
1. Get Recovery Image
You can use the image I built from Buawks/Nemith source.
http://www.mediafire.com/download.php?yodxftopf5qckgo
The original image I created (with boot-loop) can be found here but is considered obsolete. I'm leaving it here while the new image is tested:
http://www.mediafire.com/?k5azwo6modab9j9
2. Copy Recovery Image to SDCard
You can either push using
Code:adb push /path/to/irrecovery2.img /mnt/sdcard/irrecovery.img
or just Copy/Paste from a computer.
I recommend using the SDCard but really you can push this file anywhere you can access it from the Nook.
3. Upload Recovery Image to Recovery Partition
Just follow these adb commands exactly!
Code:adb shell su dd if=/mnt/sdcard/irrecovery.img of=/dev/block/mmcblk0p3
Done! You will get into a boot-loop if/when you go into CWM.
You should now be able to fully backup and restore! To get into CWM either adbCode:suor power on the device while holding down N+Power (you may need to unplug usb and/or let go of the power button after boot if device keeps turning off).Code:reboot recovery
NOTE: If you are getting a "Error mounting /sdcard" when using backup/restore you just need to remove and reinsert your sdcard.
4. Reboot out of CWM - Optional
If you still end up in a boot-loop just run these commands from adb to reset some security checks and get out of the CWM boot-loop. Check out this thread for an explanation of how this works:
http://xdaforums.com/showthread.php?t=1444630
Follow these simple steps to reboot:
1. Go to "mounts and storage" in CWM menu
2. Select "mount /bootdata"
3. Execute the following code (thanks Bauwks!):
Code:dd if=/dev/zero of=/bootdata/BootCnt bs=1 count=4 dd if=/dev/zero of=/bootdata/BCB bs=1 count=1088 reboot
You can also just go to "reboot system now" if the last line of code does not work.
Welcome back! Now get to work on some roms!
The SDcard method didn't work for me with my Nook Tablet 7" BNTV450 and I unfortunately cannot access adb as my device is in an orange state bootloop
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NOTHING in this forum is likely to do anything to your tablet but brick it. Totally different animal. This area is for the first Nook Tablet, BNTV250.
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35I'm working on this thread to show others how I've gotten CWM running off of my NT.
This will be broken out into 2 sections: SDCard Execution and Internal Installation. I've verified that backup and restore works using both of these methods.
First I would like to thank Bauwks and Nemith who have developed the u-boot crack and recovery.img used in this process. Here are some of the threads that I used for this process:
http://xdaforums.com/showthread.php?t=1440645 - Nemith's CWM recovery.img
http://xdaforums.com/showthread.php?t=1440438 - Next steps and Bauwk's internal image build process
METHOD 1 - SDCARD :
1. Setup SDCard
Using a new SDCard (not one you have info stored on) make a new MSDOS partition table and add a 50 MB FAT32 partition as the first primary partition. Then make sure you enable to boot and lda flags.
Any SDCARD larger than 50 MB should work but I used an extra 2GB laying around. You can add other partitions to the card if you want, but it is not necessary to allocate the entire card. Any added partitions would need to be manually mounted on your Nook anyway.
I used GParted on my Ubuntu machine to do this but any formating tool should work.
2. Copy Files onto SDCard
You can grab the files I used here:
http://www.mediafire.com/?dr6bqau194389te
Just UnZip the files directly to the root of the boot partition you created above (make sure flashing_boot.img, u-boot.bin, and boot.img are on the root not the folder SDCARD)
3. Insert SDCARD into NT
Now, with your NT powered off, eject the SDCARD you just created from your computer and insert it into the tablet. Then just turn it on and VOLA! You should now be in CWM!
You can then insert another (larger, preferably 16 GB +) SDCard and do a full backup.
METHOD 2 - Internal Installation:
ADB REQUIRED!!!!!
Make Sure you have Method 1 working before trying this! It is a good idea to have already backed up your device before proceeding.
Update 1/19/2012: I've modified the internal recovery.img to automatically execute the code in Step 4 which seems to have finally fixed the boot-loop. Now you can use CWM internally without having to be around your computer! Please see Pg 7 for details on how I fixed this issue.
Update 1/22/2012: I'm removing the warnings since this method seem to be verified by a lot of different sources. It looks like Indirect beat me too an APK so please see his thread if you want an easier way to install this:
http://xdaforums.com/showthread.php?t=1458630
1. Get Recovery Image
You can use the image I built from Buawks/Nemith source.
http://www.mediafire.com/download.php?yodxftopf5qckgo
The original image I created (with boot-loop) can be found here but is considered obsolete. I'm leaving it here while the new image is tested:
http://www.mediafire.com/?k5azwo6modab9j9
2. Copy Recovery Image to SDCard
You can either push using
Code:adb push /path/to/irrecovery2.img /mnt/sdcard/irrecovery.img
or just Copy/Paste from a computer.
I recommend using the SDCard but really you can push this file anywhere you can access it from the Nook.
3. Upload Recovery Image to Recovery Partition
Just follow these adb commands exactly!
Code:adb shell su dd if=/mnt/sdcard/irrecovery.img of=/dev/block/mmcblk0p3
Done! You will get into a boot-loop if/when you go into CWM.
You should now be able to fully backup and restore! To get into CWM either adbCode:suor power on the device while holding down N+Power (you may need to unplug usb and/or let go of the power button after boot if device keeps turning off).Code:reboot recovery
NOTE: If you are getting a "Error mounting /sdcard" when using backup/restore you just need to remove and reinsert your sdcard.
4. Reboot out of CWM - Optional
If you still end up in a boot-loop just run these commands from adb to reset some security checks and get out of the CWM boot-loop. Check out this thread for an explanation of how this works:
http://xdaforums.com/showthread.php?t=1444630
Follow these simple steps to reboot:
1. Go to "mounts and storage" in CWM menu
2. Select "mount /bootdata"
3. Execute the following code (thanks Bauwks!):
Code:dd if=/dev/zero of=/bootdata/BootCnt bs=1 count=4 dd if=/dev/zero of=/bootdata/BCB bs=1 count=1088 reboot
You can also just go to "reboot system now" if the last line of code does not work.
Welcome back! Now get to work on some roms!11Not every user here is at the same level of knowledge. XDA developers is all about sharing and learning, not bashing newbies If you cant respond in a friendly manner, then dont!
Please try to help fellow users, not give them a bashing!
We should all be working together here people!
I have deleted some posts to keep this thread clean!
@OP if you want me to delete more, let me Know
Peace!11
After installing EASEUS Partition Master, and inserting SD card into PC
1. Right Click existing partition on SD card and select "delete partition"
2. Right Click on * (unallocated) and select "Create Partition"
3.create partition as follows:
Create as : primary
File System: FAT32
Unallocated Space before: 0
Partition Size: 50 MB
Click OK
4. Right Click on new partition (should be Approx 54 MB) and select "set active"
5. Click apply in main menu
6. a dialog box will open stating "3 changes are pending, Apply changes now?" Select yes
7. In a few minutes a dialog will open stating 3 changes were completed successfully. Select OK.
8. Close EASUS Partition Master
9. Extract the contents of the NT-CWM_SD to the root of your 50MB partition.
10. verify 4 files are in the root of your card (boot, flashing boot MLO, and u-boot). If they are in folder, you must move them from the folder to the root of your SD Card, you can then delete the empty folder.
11. Using windows explorer, right click on your SD-Card and select "eject"
12. remove the SD card from your PC
13. power off your nook and insert the CWM SD card in the slot.
14. Power on your nook, and it will bot into CWM v 5.5.0.4
15. you can now remove the CWM sd card and install a new one for back-ups.11Internal Boot-Loop Fixed!
So I finally got around that pesky boot-loop by modifying the recovery.img. You will have to reflash my new image from the front page to get this to work, but I have tested this a good bit and haven't seen a boot loop yet.
For those who are intersted, I got around the boot loop by modifying the init.rc for the image. I simply added the following to it:
Code:on init .... mkdir /bootdata mount vfat /dev/block/platform/mmci-omap-hs.1/by-name/bootdata /bootdata .... on boot .... service resetboot /sbin/sh /sbin/ntloop.sh user root oneshot
The ntloop.sh is a simple script I wrote that utilizes Buawks method of zeroing out the BootCnt and BCB files.
This method should work for anyone out there developing internal ROMs for the nook!
The init.rc and ntloop.sh files can be downloaded here:
http://www.mediafire.com/?95plglf6p91nl2b - init.rc
http://www.mediafire.com/?9y6w8q57so3orij - ntloop.sh
I will build an APK to install this (and maybe to create the SDcard too) this weekend. Would work on it now but I'm away from my primary dev computer.
