yashsingh1/xdaforums huggingface dataset:
[Nook HD, HD+ Q&A, Help & Troubleshooting] jonlimle:
I am now having the same problem, I had CM 10.2 nightly running perfectly for about a week and I somehow came up with the amazing idea just to test out an "unofficial" 10.2 build, which ran perfectly until rebooting, and it now shows NOTHING, not even the Nook logo, booting from SD works just fine, however once into recovery it refuses to mount anything, unable to even manually mount via ADB, I have tried everything stated in this thread, however I am still unable to mount any partitions internal, nor external. I have tried with both CWM and TWRP, multiple boot images, and CWM versions all of which were to no avail, I was just curious if anyone has any other possible ideas of what to do in order to get the SD to mount once in recovery, I flashed CWM initially when I first installed CM, so the 8 failed boot method isn't exactly possible, I may not understand correctly on how the booting of the ramdisk.cwm works exactly, but would it be possible in any way to have a dump of the original recovery in the form of a ramdisk bootable from the SD, which would still be able to trigger the 8 failed boot method? That's pretty much the only thing I could come up with as a possibility at this point in time. Any help or information on this would be greatly appreciated,
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
Which rom were you using ?

There is no solution yet . verygreen has made a rom booting off sdcard . you may ask him for help.

---------- Post added at 10:16 PM ---------- Previous post was at 09:57 PM ----------

Did you successfully enter the system after you rebooted it from sdcard. Mine just cannot enter the system again after i rebooted it . I have formatted the sdcard and installed the rom many times and it's always stuck in the cm log with a circle in the upper right . It only successfully entered the system the first i had installed it. My brother bought me a sandisk card but haven't received it yet. I don't know if i can boot off the new card normally. The first time it took about ten minutes or more to enter the system? Now it won't enter the system even i wait for 30 minutes. How much time did it take to enter the system when you first booted it and rebooted:confused:

---------- Post added at 10:34 PM ---------- Previous post was at 10:16 PM ----------

Did you successfully enter the system after you rebooted it from sdcard. Mine just cannot enter the system again after i rebooted it . I have formatted the sdcard and installed the rom many times and it's always stuck in the cm log with a circle in the upper right . It only successfully entered the system the first i had installed it. My brother bought me a sandisk card but haven't received it yet. I don't know if i can boot off the new card normally. The first time it took about ten minutes or more to enter the system? Now it won't enter the system even i wait for 30 minutes. How much time did it take to enter the system when you first booted it and rebooted

---------- Post added at 11:22 PM ---------- Previous post was at 10:34 PM ----------

I have successfully adb push a rom to emmc today , do you think this will help for unbricking. Details have been sent to you by pm.
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
can you boot your nook without sd card
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
No, i can not . it is a totally dead one(cannot turn on with sdcard) according to verygreen and can not get fixed yet. so i have to choose to boot off sdcard in order to use it. what about yours , from your posts i think maybe we are in the same boat here.
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
yea same here but if your emmc is dead how did u push the file
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
i downloaded sdk tools, and put it in the c disk then adb push the zip to sdcard . today i even pushed a rom to emmc. But i don't know if it is a fake emmc, so i am now talking with verygreen with this.
[Nook HD, HD+ Q&A, Help & Troubleshooting] jonlimle:
"cm-10.2-20130822-UNOFFICIAL-ovation-sdcard"
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
i think its a fake u can check ur dmesg btw can u boot into recovery from the sdcard install that verygreen provided
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
From the dmesg, the emmc is still dead. Does it mean it's a fake emmc? do u mean that the img verygreen made has a fake emmc to resemble the real emmc , so it can boot off sdcard?

verygreen have not answered me yet.

I think you can check it for me . if you choose mounts and storage , then format /data and /data/media(sdcard)(sometimes u may need to reboot to bootload). After that if you choose install from internal storage it will shows no files, then you can adb push rom.zip/emmc/ . it will work, and can even install a rom. is it fake or not ?so far , have ur nook worked well booting from sdcard ? Please tell me your time for booting and rebooting here. an approximate time will be ok. when u see a p720 video booting off sdcard, is it smooth?i can not boot into recovery from the sdcard install that verygreen provided, when i choose to reboot to recovery , it just reboot to bootloader.
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
I think you should report the bug to verygreen.
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
okay so I timed the time it takes to boot from the nook logo about 49 sec for me....can you boot into recovery with power+home buttons?...yes the video works fine
[Nook HD, HD+ Q&A, Help & Troubleshooting] verygreen:
Just follow leapinlar's advice - a few pages back, flash the stock zip and you should be fine.
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
No, it won't. It takes only 49s ? i just cannot believe it. the first time u booted it took how much time? Do you think my problem is linked to sdcard brand or the process i installed it?

i boot from the cwm ,connect it to the pc , push the rom , install it from the menu, then i choose three ways to reboot , 1 reboot system 2 reboot recovery 3 the power

is there someting wrong in my steps? if not , i think it must be the sdcard's problem here .

what do you think of the emmc? is it fake according to you ? if it is real , i think verygreen can unbrick the device.

---------- Post added at 12:11 PM ---------- Previous post was at 11:32 AM ----------

it's a fake one according to verygreen. bad luck. i thought it would work at first .

---------- Post added at 12:19 PM ---------- Previous post was at 12:11 PM ----------

BTW , will the other sdcard roms suit the bricked ones ? Or we can only install the special noemmc rom
[Nook HD, HD+ Q&A, Help & Troubleshooting] verygreen:
Only noeemc roms would work with truly bricked units, as other (normal) roms still reference some portions on emmc.
[Nook HD, HD+ Q&A, Help & Troubleshooting] nookhdplus:
Thanks. A little strange here. When i installed the noemmc rom from the fake emmc and rebooted it , the tablet would not turn on(sometimes it will). I read the sdcard via computer, the space left was more than 90% (installing from sdcard is about 60%). Then it was not installed in sdcard. Where did the files go ? Maybe this means something here. The emmc may be real. But i am just a noob here , you may try it and find the answer.
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
I want to make a request can u please release rom for us bricked guys as well whenever there is any stable release
[Nook HD, HD+ Q&A, Help & Troubleshooting] jbbandos:
I had entered the sdcard recovery a few times, but before I sent mine for repairs this morning I tried again and it would only shut itself down when a sdcard was inserted.
[Nook HD, HD+ Q&A, Help & Troubleshooting] seattlecard:
I am having some CWM issues I need assistance with.

I created a new SD card using these instructions:

I can boot to the SD card, however I cannot do much of anything with it. Executing any of the menu items results in the cache error you see below:

I am able to ADB Push the cm ovation zip to SD card, but am unable to install it via the CWM menu system, nor using 'adb install' command.

Any clues? Thanks for the help, I'm really glad there might be a chance to revive my lagfix borked HD+ ... even if it means no emmc and SD card only.
[Nook HD, HD+ Q&A, Help & Troubleshooting] verygreen:
an what's the error you get when installing failes? the /cache warnings are just that warnings that should be ignored as per my post.
[Nook HD, HD+ Q&A, Help & Troubleshooting] seattlecard:
I can successfully push the cm-10.1-20130819-UNOFFICIAL-ovation-noemmc.zip file to the sdcard via ADB. After doing that, I go to 'install zip' from the menu, and upon execution it just repeats the same cache error messages at the bottom of the screen. I can validate that the CM file was successfully copied as I can do an adb shell ls on the sdcard directory and see it there. Thx for the assist
[Nook HD, HD+ Q&A, Help & Troubleshooting] verygreen:
if install worked then just reboot again and it'll boot into the install. ignore the cache errors.
[Nook HD, HD+ Q&A, Help & Troubleshooting] seattlecard:
Ah - ok, now my issue is that when I attempt to install the zip, it is saying e:Can't mount /sdcard/
[Nook HD, HD+ Q&A, Help & Troubleshooting] Sherip:
Are you sure you're using the SD card with the right image? I haven't done a noemmc install but I would not expect the cwm header to say its an emmc based install as it does in you screen shot.

Sent from my BN NookHD+
[Nook HD, HD+ Q&A, Help & Troubleshooting] leapinlar:
You cannot just copy the cm zip to the CWM SD while still in the PC? And even if it gives you those errors, it does not complete the menu request?

Do not use ADB install. That is only for installing apks, not ROMs.

Sent from my Nook HD+ running CM10.1 on emmc.
[Nook HD, HD+ Q&A, Help & Troubleshooting] churks:
Nook only boots to CMW-Recovery

Hi there,

i was running the latest nightlies of CM10.2, but today i wanted to try the RC2 of CM10.1.3.

I did a Factory Reset, Dalvik Cache wipe, and Cache partition wipe, and wiped the /system partition.

Than I installed the CM 10.1.3 RC2 Image.

After reboot, it only boots back to CWM Recovery. I also tried an old Nightly image, but i have still the same problem.

So obviosly, my boot partition is not working right. Maybe I accidently wiped the /bootdata partition and not the system partition.

So, now I don't know what to do. Should I try to install the Stock Recovery? Do I Have to flash the Stock Rom before installing the Stock Recovery or can the Stock Recovery start Cyanogenmod?

Or are there other possibilities to restore the usual boot partition?

-------EDIT----------

Problem SOLVED, I installed the Full revert to HD/HDplus 2.0.0 Stock Rom with Root, from leapinlar.
[Nook HD, HD+ Q&A, Help & Troubleshooting] IGZO:
Hi

I followed your guide, but after I burned the special cmw to sdcard, booted to cmw and connect to pc, I can't get adb to recognize my Nook hd+, it didnt show anything when I typed "adb devices". And I already installed the usb driver correctly

Any sollution for this problem would be appreciated

Thanks
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
in the device manager update the driver and select 'let me pick from a list of devices'.In the list there will be an android adb device or nook hd select that and ur done
[Nook HD, HD+ Q&A, Help & Troubleshooting] aegrotatio:
One problem I've had with all the various recovery tools is that they don't recreate the partition table, or they don't set the mount points on the parent volume, and all of them when formatting the volumes use the mount point and not the actual Unix block device when doing the mkfs!! This is Unix 101.

I was able to at least get my bricked Nook HD to boot from an external card by manually formatting each partition with mkfs.vfat and mkfs.ext2. Then, when rebooting, the mount point /bootdata was not present on the root volume. Creating that let the cookbook recovery utilities almost work. Now I have a stock Nook Recovery but since I don't have a stock Nook Recover Image in whatever volume it's looking for, it won't recover. Next I will find where to put that recovery image and then try it once more.

But I'm distraught that all the boot-from-sdcard distributions completely fail to boot when emmc is slightly messed up. I want a completely emmc-free sdcard distribution anymore that isn't used by nobody.

But thanks for the advice. I am always open to new ideas.
[Nook HD, HD+ Q&A, Help & Troubleshooting] leapinlar:
If what you meant is an SD install for bricked emmcs, verygreen made one. It is not a separate thread so I think it is buried in his SD thread somewhere. Search. EDIT: Look here.

And if you want to know where that recovery zip is, it is p7. Look in my HD/HD+ Tips thread linked in my signature for the partition layout. Item 16.

Sent from my Nook HD+ running CM10.1 on emmc.
[Nook HD, HD+ Q&A, Help & Troubleshooting] aegrotatio:
I have the information I need and the obscure hints didn't help. I figured it out myself. The non-emmc booters never worked. I had to use the bootloader already present on the system to reformat the partitions.

Honestly--when reformatting partitions, use the device path, not the mount point. That is one of the major reasons for my problems using all the "download this and boot from it and it will work" advice that never worked.
[Nook HD, HD+ Q&A, Help & Troubleshooting] leapinlar:
Obscure hints? You are on your own buddy.

Edit: I did the search for you and provide a link and you insult me.

Sent from my Nook HD+ running CM10.1 on emmc.
[Nook HD, HD+ Q&A, Help & Troubleshooting] talha970:
[MENTION=3654172]verygreen[/MENTION] can you plz plz plz release a noemmc cm 10.2 version
[Nook HD, HD+ Q&A, Help & Troubleshooting] smurfster:
Could you explain how u fixed your issue. I Think it will help me
[Nook HD, HD+ Q&A, Help & Troubleshooting] aegrotatio:
I'd like to explain it, but it didn't really solve anything. The Nook HD is still bricked.
[Nook HD, HD+ Q&A, Help & Troubleshooting] smungai:
Hello there.

I stumbled across this when trying to boot my bricked nook HD hummingbird straight from SD card. I believe the Nook's partitions are messed up hence my booting from SD. As it turns out, we do need /emmc and as it's messed up, I would always boot into recovery. Is there a noemmc version of CM10 or 10.1? I'd be extremely happy if there is.

Many thanks.
[Nook HD, HD+ Q&A, Help & Troubleshooting] zamplifier:
com.android.phone has stopped

I keep getting this message on startup and whenever i press ok to dismiss it it just comes back, im on the nook hd 7 inch and this is happening with every rom i try. also when i try to flash and run the plain stock nook rom from this thread http://xdaforums.com/showpost.php?p=35811322&postcount=1 it just stays loads untill 99% and never finishes, am i briked? what should i do?
[Nook HD, HD+ Q&A, Help & Troubleshooting] leapinlar:
You keep getting what message?
[Nook HD, HD+ Q&A, Help & Troubleshooting] zamplifier:
I was getting the message in the title of my reply, com.android.phone has stopped working. Here is my full story. I was running CM10.2.1 , the one on this page http://download.cyanogenmod.com/?device=hummingbird

I tried updating to the CM 11 snapshot on that same page and used your own CWM from here: http://xdaforums.com/showpost.php?p=35811322&postcount=1

The installation said it failed so i went out of recovery and tried to boot up. Thats when the thing would not boot and just alternated between the nook on black background page and the cyanoboot page. I tried re-installing and when i ran that the nook simply stayed in the cyanogenmod booting circle thing forever. Next i tried to flash your stock 2.1.1 plain rom from the link above. It worked so i tried installing CM 10.2.1 again. that's when i started getting the meassage. Now i just recently did the failed reboot 8 times to restet, wich worked and i have a working stock rom, but i once again tried installing CM 10.2.1 but it stayed in the booting circle page forever. Don't ask me why i did all those things, because i had this problem along time ago and randomly installing roms eventually worked for me, so I decided to be stupid and just not ask for help but try this on my own. I regret my decisions.
[Nook HD, HD+ Q&A, Help & Troubleshooting] leapinlar:
The reason you had problems with the CM11 flash is you must use v6045 or newer of CWM to flash CM11. Mine is 6036 or 6027.

I don't know why you are having that issue now.
[Nook HD, HD+ Q&A, Help & Troubleshooting] zamplifier:
Ok, but where can i get a newer version of CWM?
[Nook HD, HD+ Q&A, Help & Troubleshooting] Korgy:
Go to this thread:

http://xdaforums.com/showthread.php?t=2600572
[Nook HD, HD+ Q&A, Help & Troubleshooting] babydouggie:
Help With Bricked? Nook HD+

I am seeking some advice about, I suppose is a "Bricked" B&N Nook HD+. I have had it for a couple of years and have installed "cyanoboot universal bootloader" on it. I have "install from unknown sources" on it also.Other than that , it is pretty much stock. Everything had been working more-or-less ok. Not too long after I purchased it I ran across the "lag-fix" app and the app to test for the bad emmc chip (the one that bricks your device if you try to use lag-fix). The test app informed me I had the "good" chip and I used the lag-fix at least a couple of times without any ill effects. Lately , I had noticed some "lag" in response on my device, so I thought it would not hurt to run the lag-fix app. BIG MISTAKE !!! After running it, my device would not boot normally. If I insert my external SDcard that I have my backups on in it, it does boot but it boots off the SDcard into CWM-based recovery. Whenever I try to do anything, I get a bunch of errors such as : cant mount /cache/recovery/command, etc. I am assuming there is no way to get the internal emmc working again but I found some postings on this forum about booting and running the Nook totally from the external SDcard. I amy trying this but with no success. According to verygreen's posts on August 20, 2013, there is: quoting the post ...

"Anyway, cm-10.1 install that will work on a device with emmc "dead":

First you need to get a special cwm image: sdcard-cwm-early-noemmc-2.img.gz

gunzip the image and burn it to the target sdcard

then get the special cm image:

cm-10.1-20130819-UNOFFICIAL-ovation-noemmc.zip

adb push it to /sdcard/ and then install.

Also push and install whatever else you need."

I tried the fist part ...installing sdcard-cwm-early-noemmc-2.img.gz to the SDcard and when it booted up, it offered the same or similar menu as the CWM-based recovery on my original backup SDcard with the same or similar errors. As far as using adb to push the other image ... cm-10.1-20130819-UNOFFICIAL-ovation-noemmc.zip, I could not get adb to work or even recognise the Nook (my computer sees the Nook as BN Nook HD+ when the SDcard is in and as Blaze_Tablet when I can get it to boot without the SDcard ...then it gets stuck on Nook logo).

I tried unzipping the "cm-10.1-20130819-UNOFFICIAL-ovation-noemmc.zip" and burning it to the SDcard with my PC, but again, when it boots up, I am presented with the CWM-based recovery screen again.

Am I doing something wrong here? Should I not be able to get the Nook to run off the external SDcard? I would greatly appreciate some help here, if someone has any to offer? If I am wasting my time trying to get this to work, please tell me! A step-by-step method to do this would be great. I am fairly proficient wth a PC, but android is new to me. Thanks very much!
[Nook HD, HD+ Q&A, Help & Troubleshooting] BDestroyer8418:
I'm having a issue with my HD+ now. Not sure if it's BRICKED or not. It was sitting for awhile where the battery was completely drained. The Nook would not power on at all had it charging for days not even the backlights on the screen. So grabbed a SD card and put leapinlar CWM 6028 stock and tried all the stock images as well. The HD+ will boot into CWM 6028 with the SD Card only. But when I try to install anything or wipe the disk I get the following below.

I get these 2 issues depending on if I hit the power button or the Nook button when install from zip

E: Can't mount /sdcard

E: Can't mount /cache/recovery/command

E: Can't mount /cache/recovery/log

E: Can't open /cache/recovery/log

E: Can't mount /cache/recovery/last_log

E: Can't open /cache/recovery/last_log

How to fix this. I don't even know how it got to this by the battery just draining. I don't remember what image was flashed either not sure if that was needed. Trying to fix this before my trip this week otherwise might have to go spend money on a new tablet rather not.

* I also tried hooking the USB cable to my PC but the drivers are not installing and I can't find them. I see the BN Nook HD+ in the device manager.

Forgot I had a Square Trade warranty for this good for another year. Looks like they would replace this with the Acer Iconia A1-840. Not sure how good that is might have to look into that if I can't fix this or get a cash out on the claim.
[Nook HD, HD+ Q&A, Help & Troubleshooting] PaulInAtlGA:
CM11 install with dead EMMC

My situation is very similar that that described by BDestroyer8418, above. What I need is a "... for Dummy's" step-by-step guide to install CM11 on my external mSD card, in that my EMMC is fried / unavailable. All instructions I've seen so far are for installing it on the EMMC or using a working EMMC to install it on the external SD. Thanks in advance for any help!
[Nook HD, HD+ Q&A, Help & Troubleshooting] shamo75:
I managed to get my Nook HD+ which seems to have dead emmc, running according to http://xdaforums.com/showpost.php?p=44797803&postcount=73

I am not sure however which gapps to use.. are any v10.1 ok or should there be a special noemmc version of them.. anybody knows?

ps: I tried but could not get it working with CM11 (according to https://iamafanof.wordpress.com/201...-4-4-4-for-bricked-no-emmc-nook-hd-04nov2014/ )
[Nook HD, HD+ Q&A, Help & Troubleshooting] aaenaee:
Hi shamo75

Sounds great that you managed to get you Nook running! . My congratulations!

Could you please elaborate for non-devs how specifically you performed the part of the instruction with the following words "adb push it to /sdcard/" from the post of the forum you referenced . A step-by-step guide ("for dummies") would be very much appreciated.:)
[Nook HD, HD+ Q&A, Help & Troubleshooting] PaulInAtlGA:
I was able to follow the directions that he said did no work for him, and they worked fine for me: I now have CM11 running on my Nook HD+ that has a failed EMMC.

Paul
[Nook HD, HD+ Q&A, Help & Troubleshooting] shamo75:
Hi aaenaee,

About the adb usage you can read in this post http://xdaforums.com/showpost.php?p=44806489&postcount=77

However I didn't do that step with adb (and the prepartions for it), as I got a Linux machine at hand and instead after writing the image to the SDcard , I just mounted created partitions on the SDcard and copied the cm-10.1-20130819-UNOFFICIAL-ovation-noemmc.zip to the /sdcard partition.

You might do similar on Windows using some add-on for reading&writing to Ext partitons, but I haven't tried that, so no experience there.

Does this help you?

---------- Post added at 01:30 AM ---------- Previous post was at 01:20 AM ----------

That's great Paul as I am not too happy with CM10.1 performance .. it's working but I believe Wifi is always on and draining battery (I use automeateit app to turn it off/on ) and also browsers are sometimes crashing . Also I am not sure which gapps to apply which limits access to some apps as they are not on Amazon store or were bought in google play store.

I will give CM11 another try with different sdcard .. thank you for the good news

I got stuck at the point when I should mount /boot .. logs say it can’t mount /boot and /system . It does mount /data though.
[Nook HD, HD+ Q&A, Help & Troubleshooting] PaulInAtlGA:
I don't see that step in the directions, other than you select the "Boot" checkbox at one point. Are you sure you are following the steps at iamafanof . wordpress . com/2014/11/04/cm11-0-kitkat-android-4-4-4-for-bricked-no-emmc-nook-hd-04nov2014/ ??