Database Users

sdcard help please.

Help please.
My sdcard is not showing up in in root file explorer or file manager.
It shows up in storage/system and when connected go a pc.
I've tried to re-mount and it didn't work.
Running CM7
Thanks

Have you tried re-formatting it in the phone, you did not buy a fake from ebay did you?

try run a full format in windows. To test whether it was corrupted or fake go to sosfakeflash.wordpress.com/2008/09/02/h2testw-14-gold-standard-in-detecting-usb-counterfeit-drives/[/url]

Check CM7 FAQs .
jje

Its not a fake. I bought it at best buy and it still works fine in a pc, but the won't show files on it in phone.
Not sure. I checked the cm7 thread but couldn't find anything on it.
I'm at a lose. Tried reformating too. Nothing works yet.
Sent from my GT-I9100 using XDA Premium App

You have not mentioned what brand and size your microsd card is, maybe it`s one that is incompatible, do you have another phone to try it in?
EDIT : do a full format in you pc, not a quick one, with the app in the link below.
https://www.sdcard.org/consumers/formatter_3/
send2toonie said:
Its not a fake. I bought it at best buy and it still works fine in a pc, but the won't show files on it in phone.
Not sure. I checked the cm7 thread but couldn't find anything on it.
I'm at a lose. Tried reformating too. Nothing works yet.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse

send2toonie said:
I checked the cm7 thread but couldn't find anything on it.
Click to expand...
Click to collapse
I believe the post above was a cryptic way of suggesting you check /mnt/emmc which is where your SD card is mounted in CM7.

oinkylicious said:
I believe the post above was a cryptic way of suggesting you check /mnt/emmc which is where your SD card is mounted in CM7.
Click to expand...
Click to collapse
OMG. Thank you. That was it.
I'm an idiot. Too much HP Touchpad made me lost my mind.

oinkylicious said:
I believe the post above was a cryptic way of suggesting you check /mnt/emmc which is where your SD card is mounted in CM7.
Click to expand...
Click to collapse
Nope just recall that the same question has been asked before in regards to this rom .With a slight memory recall that it was the rom .
jje

[Q] cannot dual boot nook color 1.3.0

I am not a developer nor do i understand how you guys do this. That being said i can follow directions and usually reach an acceptable result, however i have 2 Nook colors and can only get one to dual boot. The first one is a Blue Dot box and is running 1.2.0 and i fillowed the "dual boot guide" and it worked just fine. the second has no dot on the box and is running 1.3.0 and i have tried every guide on here that i could understand and still have had no luck at all. You put the sd card in and it wont start up. it will start up with an sd card that does not have an image written on it. can anyone please help me out.

_DaWiNdLe_ said:
I am not a developer nor do i understand how you guys do this. That being said i can follow directions and usually reach an acceptable result, however i have 2 Nook colors and can only get one to dual boot. The first one is a Blue Dot box and is running 1.2.0 and i fillowed the "dual boot guide" and it worked just fine. the second has no dot on the box and is running 1.3.0 and i have tried every guide on here that i could understand and still have had no luck at all. You put the sd card in and it wont start up. it will start up with an sd card that does not have an image written on it. can anyone please help me out.
Click to expand...
Click to collapse
It should not make a difference whether the nook is a blue dot version or not a blue dot version. Before ruling out a bad SD card slot, make another bootable SD card using a different SD card and try it.

hwong96 said:
It should not make a difference whether the nook is a blue dot version or not a blue dot version. Before ruling out a bad SD card slot, make another bootable SD card using a different SD card and try it.[/QUOTE
I have tried four different cards, i even tried the one that worked in the other NC. However it will boot up with a sd card in it, once i write the image on it it will no longer boot up.
Click to expand...
Click to collapse

_DaWiNdLe_ said:
hwong96 said:
It should not make a difference whether the nook is a blue dot version or not a blue dot version. Before ruling out a bad SD card slot, make another bootable SD card using a different SD card and try it.[/QUOTE
I have tried four different cards, i even tried the one that worked in the other NC. However it will boot up with a sd card in it, once i write the image on it it will no longer boot up.
Click to expand...
Click to collapse
The nook color is hardwired to boot from SD card first. You should get it repaired by BN if still under one year warranty. Can it still read files stored on the SD card?
Click to expand...
Click to collapse

I would make sure the one with no dot is in fact a Nook Color and not a Nook HD

hwong96 said:
_DaWiNdLe_ said:
The nook color is hardwired to boot from SD card first. You should get it repaired by BN if still under one year warranty. Can it still read files stored on the SD card?
Click to expand...
Click to collapse
Yes it still reads anything on the card and will boot up as long as there is not an image written on it and if you write an image on it and start the NC up and then put in the sd card it will reed it, it just wont boot up with it in.
Click to expand...
Click to collapse

_DaWiNdLe_ said:
hwong96 said:
Yes it still reads anything on the card and will boot up as long as there is not an image written on it and if you write an image on it and start the NC up and then put in the sd card it will reed it, it just wont boot up with it in.
Click to expand...
Click to collapse
Check the model number of this nook. The nook color model number is BNVR200. Is this what you have?
Click to expand...
Click to collapse

hwong96 said:
_DaWiNdLe_ said:
Check the model number of this nook. The nook color model number is BNFVR200. Is this what you have?
Click to expand...
Click to collapse
no it is a BNRV200
Click to expand...
Click to collapse

_DaWiNdLe_ said:
hwong96 said:
no it is a BNRV200
Click to expand...
Click to collapse
That is a nook color. I removed the f in my reply. My bad.
Click to expand...
Click to collapse

hwong96 said:
_DaWiNdLe_ said:
That is a nook color. I removed the f in my reply. My bad.
Click to expand...
Click to collapse
so then you think the reader is bad and i should send it to B&N and have them fix it???
Click to expand...
Click to collapse

_DaWiNdLe_ said:
hwong96 said:
so then you think the reader is bad and i should send it to B&N and have them fix it???
Click to expand...
Click to collapse
BN should fix it if under warranty, but they can refuse to fix it if the system works as they intended with stock firmware and sd card slot that reads/writes files stored on it. Maybe they can exchange for another unit if under warranty. Good luck.
Click to expand...
Click to collapse

hwong96 said:
so then you think the reader is bad and i should send it to B&N and have them fix it???
Click to expand...
Click to collapse
B&N will not repair or replace it if it is reading SD's... the most likely culprit is a faulty write of the SD if you are trying a SD boot... You might also verify the type and class of SD.
You could also upgrade the stock ROM to 1.4.3 via flashable zip or sideloading via B&N website and try again.

DizzyDen said:
B&N will not repair or replace it if it is reading SD's... the most likely culprit is a faulty write of the SD if you are trying a SD boot... You might also verify the type and class of SD.
You could also upgrade the stock ROM to 1.4.3 via flashable zip or sideloading via B&N website and try again.
Click to expand...
Click to collapse
Actually, it is not a bad sd write, becouse the same exact card works in the other NC. And B&N did replace it, sent one out today, no questions asked. And the card was an 8gb class4.

_DaWiNdLe_ said:
Actually, it is not a bad sd write, becouse the same exact card works in the other NC. And B&N did replace it, sent one out today, no questions asked. And the card was an 8gb class4.
Click to expand...
Click to collapse
Now that is what I call great customer service :good::good:

hwong96 said:
Now that is what I call great customer service :good::good:
Click to expand...
Click to collapse
Yeah no kidding. They sent it out express, and sent return shipping packaging and labels with postage paid. I was pretty impressed. Thanks B&N.

SD cards do damage over time with usage so be sure to check its not an overly used SD card. It can get to the point in which it won't write
Sent from my NookColor using Tapatalk HD

CM10 Internal EMMC

Is it possible to install CM10 on the internal EMMX of Nook HD. I know that it is possible to bypass the Nook HD bootloader to prevent it from checking if all the files match. I want to know how to do that with bootloader.
Thanks
Avi

epicavi said:
Is it possible to install CM10 on the internal EMMX of Nook HD. I know that it is possible to bypass the Nook HD bootloader to prevent it from checking if all the files match. I want to know how to do that with bootloader.
Thanks
Avi
Click to expand...
Click to collapse
Not so far. Maybe someday.
Sent from my Nook HD+ using XDA Premium

leapinlar said:
Not so far. Maybe someday.
Sent from my Nook HD+ using XDA Premium
Click to expand...
Click to collapse
Yes but is it even possible like i just saw a post of that. Now i want to start like hacking my Nook cause my exams are finished

Of course anything is possible, figure out a way to unlock the bootloader?

epicavi said:
Yes but is it even possible like i just saw a post of that. Now i want to start like hacking my Nook cause my exams are finished
Click to expand...
Click to collapse
It is possible. Hack away. Just don't bug the rest of us always asking for how to do it when most of us don't have a clue. Very few do. It takes some very talented people to figure it out. Do you understand how to read, modify and write code? That is what it is going to take.
Sent from my Nook HD+ using XDA Premium

What is a locked bootloader?
leapinlar said:
It is possible. Hack away. Just don't bug the rest of us always asking for how to do it when most of us don't have a clue. Very few do. It takes some very talented people to figure it out. Do you understand how to read, modify and write code? That is what it is going to take.
Click to expand...
Click to collapse
I do understand how to code. But I don't understand how these systems are set up.
Can anybody explain exactly what "locking" the bootloader means? Is the boot code in the Nook's OMAP ROM designed to check for a cryptographic signature in images it loads from EMMC storage? Even though it doesn't make any such check for images loaded from the SD card? (The OMAP Wiki doesn't seem to mention anything about checking signatures.)
I tried overwriting the first 8 MB of /dev/block/mmcblk0 on my HD with the partition table and VFAT boot partition from a CWM Recovery SD card. It would not boot, even though the the HD boots perfectly well off the card.

CM10 on the internal EMMX
epicavi said:
Is it possible to install CM10 on the internal EMMX of Nook HD. I know that it is possible to bypass the Nook HD bootloader to prevent it from checking if all the files match. I want to know how to do that with bootloader.
Thanks
Avi
Click to expand...
Click to collapse
This would be awesome please keep us updated on any progress.:good:

I think you could install CM10 to internal memory on the HD now, can't you? Just not on the HD+ yet?
http://forum.xda-developers.com/showthread.php?t=2097731
is the thread I thought detailed the process?

leapinlar said:
It is possible. Hack away. Just don't bug the rest of us always asking for how to do it when most of us don't have a clue. Very few do. It takes some very talented people to figure it out. Do you understand how to read, modify and write code? That is what it is going to take.
Sent from my Nook HD+ using XDA Premium
Click to expand...
Click to collapse
sox again lol but for CM10 how to install GApps. I did the boot from the "cm10-sdcard-imager.img". Do I now install CWM on it with "sdcard-cwm-hummingbirdv4.zip" file and install the GApps.
Thank You
-Avi

roustabout said:
I think you could install CM10 to internal memory on the HD now, can't you? Just not on the HD+ yet?
http://forum.xda-developers.com/showthread.php?t=2097731
is the thread I thought detailed the process?
Click to expand...
Click to collapse
I think this one is that the CM10 DATA is stored on the internal memory and the rome stored on the sdcard

Delta^1_1 said:
I do understand how to code. But I don't understand how these systems are set up.
Can anybody explain exactly what "locking" the bootloader means? Is the boot code in the Nook's OMAP ROM designed to check for a cryptographic signature in images it loads from EMMC storage? Even though it doesn't make any such check for images loaded from the SD card? (The OMAP Wiki doesn't seem to mention anything about checking signatures.)
I tried overwriting the first 8 MB of /dev/block/mmcblk0 on my HD with the partition table and VFAT boot partition from a CWM Recovery SD card. It would not boot, even though the the HD boots perfectly well off the card.
Click to expand...
Click to collapse
You are right about the bootloader checking crypto codes on emmc. And it does on SD too. Verygreen has just found a loophole to defeat the check. That is your challenge, find a loophole to defeat the lock on emmc. Study verygreen's code and you may get a clue.
Sent from my Nook HD running CM10.1 on Hybrid SD

OK but can I open the actual device and replace sdcard?
Sent from my Barnes & Noble Nook HD using xda app-developers app

epicavi said:
OK but can I open the actual device and replace sdcard?
Sent from my Barnes & Noble Nook HD using xda app-developers app
Click to expand...
Click to collapse
No it is embedded. Emmc = embedded multimedia card.
Sent from my Nook HD running CM10.1 on SD

I ve just installed CM10 to my Nook HD, but it seems can not to attach the internal memory as SD card. Anyone can help me pls.

quan0509 said:
I ve just installed CM10 to my Nook HD, but it seems can not to attach the internal memory as SD card. Anyone can help me pls.
Click to expand...
Click to collapse
I assume you mean use emmc (internal memory media storage) as "sdcard". Usually with CM10 you can add a simple file to swap emmc and the real sdcard. But because of the way emmc is mounted on this device, that does not work. Why do you want it? There is a work around if you really need it.
Sent from my Nook HD+ running CM10 on SD

Yes, emmc is the thing i mentioned. I dont see it on my nooo then cant use it as storage.
Could u mind to show me the way to work around?
Sent from my Barnes & Noble Nook HD using Tapatalk 2

quan0509 said:
Yes, emmc is the thing i mentioned. I dont see it on my nooo then cant use it as storage.
Could u mind to show me the way to work around?
Sent from my Barnes & Noble Nook HD using Tapatalk 2
Click to expand...
Click to collapse
If you just want to use it as media storage, it is available as "emmc" in your file manager. You can copy files there. And you can sometimes set your applications to use "emmc" instead of "sdcard". Is that what you want to know?
Sent from my Nook HD+ running CM10 on SD

leapinlar said:
If you just want to use it as media storage, it is available as "emmc" in your file manager. You can copy files there. And you can sometimes set your applications to use "emmc" instead of "sdcard". Is that what you want to know?
Sent from my Nook HD+ running CM10 on SD
Click to expand...
Click to collapse
Right bro. But the point is nothing named emmc on my nook. Is there any my mistake here? I mounted it already, but nothing is showed.
Sent from my Barnes & Noble Nook HD using Tapatalk 2

quan0509 said:
Right bro. But the point is nothing named emmc on my nook. Is there any my mistake here? I mounted it already, but nothing is showed.
Sent from my Barnes & Noble Nook HD using Tapatalk 2
Click to expand...
Click to collapse
What file manager are you using? The one that comes with CM10? If so go to settings in the lower right and click on it. Then general, then access mode and select root. Then you can go to sdcard0, which is internal storage. That file manager is very bad. I recommend you get root browser lite in play store.
Sent from my Nook HD running CM10.1 on SD

leapinlar said:
What file manager are you using? The one that comes with CM10? If so go to settings in the lower right and click on it. Then general, then access mode and select root. Then you can go to sdcard0, which is internal storage. That file manager is very bad. I recommend you get root browser lite in play store.
Sent from my Nook HD running CM10.1 on SD
Click to expand...
Click to collapse
I think you thought RootExplorer.

[Q] Unable to boot my Nook Color 1.4.3 using MicroSD.

Greetings! I have a Nook Color v1.4.3 and I have tried to boot it on Sandisk class4 16GB MicroSD. I tried a bunch of different bootable images as well as writing the image with Winimage and Win32diskimager. I spent most of the day yesterday trying to get it to boot and it continues to boot up on the internal image rather than the MicroSD. Are there versions of the Nook Color that has the MicroSD card slot boot feature disabled? Any help would be greatly appreciated. Thank you!

Need more information
What are the specific steps you went through to write the images? Which images are you using? It's a Color and not a Tablet (dark grey vs light grey bezel common mix-up)?
rviviano said:
Greetings! I have a Nook Color v1.4.3 and I have tried to boot it on Sandisk class4 16GB MicroSD. I tried a bunch of different bootable images as well as writing the image with Winimage and Win32diskimager. I spent most of the day yesterday trying to get it to boot and it continues to boot up on the internal image rather than the MicroSD. Are there versions of the Nook Color that has the MicroSD card slot boot feature disabled? Any help would be greatly appreciated. Thank you!
Click to expand...
Click to collapse

The bezel is dark grey. I have tried writing several boot images to my SDCard using WinImage and Win32diskimager. The images I have tried are CWM-6.0.1.2-bootable_SD, TWRP-2.1.8-bootable-SD-encore, generic-sdcard-v1.3-CM7-9-10-larger-Rev5, generic-sdcard-v1.3-CM7-9-10-10.1-larger-Rev6 and generic-sdcard-v1.3-CM7-9-10-10.1-10.2-larger-Rev7. The model number is BNTV250.

Having tried to make those SDs boot you have obviously been to my Tips thread. Did you try some of the techniques in my section A9 there? Like using an external card reader, etc? And the colors of the bezel are black for Nook Color and silver for Nook Tablet. None of those images will boot on a Nook Tablet.
And there a no versions of the Nook Color where SD booting has been disabled.
Sent from my BN NookHD+ using xda premium

You just added the model number. That is a Nook Tablet.
Sent from my Galaxy Tab 2 using XDA Premium

leapinlar said:
You just added the model number. That is a Nook Tablet.
Sent from my Galaxy Tab 2 using XDA Premium
Click to expand...
Click to collapse
https://www.google.com/search?redir...384315075903&action=devloc#hl=en-US&q=bntv250
Yep. Definitely a Nook Tablet. Get to that section of the forum and I bet you have all kinds of success.
Sent from my GT-P5210 using XDA Premium HD app

Thank you all so very much for your help. I did have much success once I was pointed in the right direction. It turned out I did in fact have the tablet and not the color and was able to install the lastest CM.

HELP - Recovery of Nook Color.

I've decided to recover my modded Nook back to stock, but I haven't been keeping updated on the latest CWMs. I can't find which CWM and which Image files to use to recover my Nook Color back into Stock.

Anyone know where I can find another mirror for this site
Legacyschool.us.to
It leads me to an deadline....Please Help

Jones 13 said:
I've decided to recover my modded Nook back to stock, but I haven't been keeping updated on the latest CWMs. I can't find which CWM and which Image files to use to recover my Nook Color back into Stock.
Click to expand...
Click to collapse
Go to my nook color tips thread linked in my signature. I have both the required CWM and instructions (item A15) there.
Sent from my BN NookHD+ using XDA Premium HD app

believe I have deleted partitions on nook color
First, thank you so much for all the work you and other do.. Here is my problem. My nook color will not boot (black screen) . I believe I have inadvertently mounted and deleted my emmc partitions using an sd partitioning tool. I have a bootable cwm card I use to at least boot the nook (color). I have tried to use cwm to format emmc, and then used all of your repair tools to attempt to recreate and repair my partitions, but to no avail. Reading your posts, I have come to the conclusion that I have somehow deleted/corrupted the all important third partition, because I attempt to repair partition 2, and your tool simply throws error and aborts. Everything I have tried so far has only been done through cwm off sd card, I have not tried to push anything through adb, as I don't have it at this time, but I wanted to know if this would be your suggestion before I went further. As many have said before, (but you have proven wrong) I have actually bricked this nook at this point. Other possibly pertinent info: cwm version 3.0.2.8 off sd card. When trying to format emmc using cwm, process reports done but then freezes required hard restart. I have tried many different things from you wonderful devs, but without getting my part 3 back, I am at a loss!! thanks so much for what you do, and your time!

masterartman said:
First, thank you so much for all the work you and other do.. Here is my problem. My nook color will not boot (black screen) . I believe I have inadvertently mounted and deleted my emmc partitions using an sd partitioning tool. I have a bootable cwm card I use to at least boot the nook (color). I have tried to use cwm to format emmc, and then used all of your repair tools to attempt to recreate and repair my partitions, but to no avail. Reading your posts, I have come to the conclusion that I have somehow deleted/corrupted the all important third partition, because I attempt to repair partition 2, and your tool simply throws error and aborts. Everything I have tried so far has only been done through cwm off sd card, I have not tried to push anything through adb, as I don't have it at this time, but I wanted to know if this would be your suggestion before I went further. As many have said before, (but you have proven wrong) I have actually bricked this nook at this point. Other possibly pertinent info: cwm version 3.0.2.8 off sd card. When trying to format emmc using cwm, process reports done but then freezes required hard restart. I have tried many different things from you wonderful devs, but without getting my part 3 back, I am at a loss!! thanks so much for what you do, and your time!
Click to expand...
Click to collapse
What does it do after the 145678 repair and you try to boot without the SD inserted?
Sent from my BN NookHD+ using XDA Premium HD app

leapinlar said:
What does it do after the 145678 repair and you try to boot without the SD inserted?
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
once again, black screen, no response from any boot method. Not even a soft glow from screen.

masterartman said:
once again, black screen, no response from any boot method. Not even a soft glow from screen.
Click to expand...
Click to collapse
If it won't turn on after flashing that zip that means you must have destroyed your partition table with that software. That is fixable, but not easily and not with any tools I have made. You must learn how to operate fdisk and repair it manually. You can make a bootable TWRP SD which has a terminal emulator program that lets you run fdisk to see what you have there. Then possibly you could reconstruct the partition table. But you have to know what you are doing.
Sent from my BN NookHD+ using XDA Premium HD app

leapinlar said:
If it won't turn on after flashing that zip that means you must have destroyed your partition table with that software. That is fixable, but not easily and not with any tools I have made. You must learn how to operate fdisk and repair it manually. You can make a bootable TWRP SD which has a terminal emulator program that lets you run fdisk to see what you have there. Then possibly you could reconstruct the partition table. But you have to know what you are doing.
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
Thank you so much for your response, sorry my response was so slow, I have a child now in the hospital. I have downloaded your twrp 2.1.8 bootable from a different thread. Is this the tool I will need? Would I simply copy your exe to my cwm disk and run it from there? I am relatively computer literate and somewhat comfortable using partition tools, but of course I will need specific instructions, your recommendations on partition size, etc. Once again, THANK YOU for your time, even bothering to assist me with this is GREATLY appreciated!

masterartman said:
Thank you so much for your response, sorry my response was so slow, I have a child now in the hospital. I have downloaded your twrp 2.1.8 bootable from a different thread. Is this the tool I will need? Would I simply copy your exe to my cwm disk and run it from there? I am relatively computer literate and somewhat comfortable using partition tools, but of course I will need specific instructions, your recommendations on partition size, etc. Once again, THANK YOU for your time, even bothering to assist me with this is GREATLY appreciated!
Click to expand...
Click to collapse
If you search the NC forums the partition sizes are listed. I am not sure where it is. And I think that version of TWRP has a terminal, but you may need a newer one.
Sent from my BN NookHD+ using XDA Premium HD app

leapinlar said:
If you search the NC forums the partition sizes are listed. I am not sure where it is. And I think that version of TWRP has a terminal, but you may need a newer one.
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
I am so sorry for the delay in a response, I have had a lot on my plate lately, and not been able to devote much time to my little nook. Her is where I stand : booting from twrp (with terminal as you say) fdisk 1.3.1 installed on sdcard and opening in terminal. I type fdisk, and it will pull up the usage table. Here is where I run into trouble......... I type # fdisk -l to try and view existing tables, it only shows my sd card... I have tried every combination of command symbols I can think of. (#, ~, $, ~$, etc...) I thought I had a decent grasp of fdisk, but apparently not. Brother, if you can get me through this, you have a donation coming your way!! Not sure how to proceed, or if I even have necessary software versions. Thanks!!

masterartman said:
I am so sorry for the delay in a response, I have had a lot on my plate lately, and not been able to devote much time to my little nook. Her is where I stand : booting from twrp (with terminal as you say) fdisk 1.3.1 installed on sdcard and opening in terminal. I type fdisk, and it will pull up the usage table. Here is where I run into trouble......... I type # fdisk -l to try and view existing tables, it only shows my sd card... I have tried every combination of command symbols I can think of. (#, ~, $, ~$, etc...) I thought I had a decent grasp of fdisk, but apparently not. Brother, if you can get me through this, you have a donation coming your way!! Not sure how to proceed, or if I even have necessary software versions. Thanks!!
Click to expand...
Click to collapse
Look through this thread:
http://forum.xda-developers.com/showthread.php?t=2334883