I have an issue that seems to be similar to those suffered by a number of people. I'm just having difficulty understanding the cause of it, and the solution. I have a nook hd+ that no longer boots as a result of trying CM11 on an SD card.
I installed CM11 to an SD card (as I was nervous of altering my nook) using bokbokan's excellent instructions. Initially it seemed fine but this morning it was unexpectedly out of battery and will no longer boot.
The symptoms are similar to this: http://forum.xda-developers.com/showthread.php?t=2611769, this: http://forum.xda-developers.com/showthread.php?t=2736347 and this: http://forum.xda-developers.com/showthread.php?t=2649061&page=2 except that the posters there had previously replaced the stock software and overwritten the emmc.
When the SD is in, it locks up on the Cyanoboot screen, when the SD card is out I only get to the black screen with 'Nook' on it and no further. It looks like the SD install has messed something up on the internal emmc. Hard resets and multiple failed boots don't appear to help.
I can occasionally (but not always) get it to reboot to CWM recovery by reinserting the card and holding down N and lock, but I get a lot of errors such as "E:Can't open /cache/recovery/last_log", "W:failed to mount /dev/block/platform/omap/omap_hsmmc.1/by-name/cache on /cache failed:No such file or directory" and "I:Can't partition non-vfat: /emmc (ext4)". When I go to 'Mounts and Storage' in CWM, I cannot mount anything (e.g. "Error mounting /boot!").
I chose to go down the SD card install route (using ) in order to avoid touching the stock install on the emmc, but now the whole thing is dead.
Reading other threads, it sounds like either:
1. The emmc is bricked due to some firmware bug. The impression I get from reading around is that CM11 was supposed to incorporate a workaround for the issue. If the emmc is the problem, I have to return the Nook and hope to get a working one.
2. The emmc has (somehow) become corrupted, I have to put a different version of CWM on my SDcard (so it will install to the EMMC rather than the SDcard, and because CM11 uses a different version), using the instructions here: http://forum.xda-developers.com/showthread.php?p=35811322 and then reinstall a stock rom to my emmc. I then have to reregister the Nook (not sure if this is essential) before being able to use my CM11 SDcard install again.
If it is the first problem, I would like to know how I can check to see if the emmc is indeed broken.
If it is the second, I would be grateful for any help in understanding how and why the SD install has messed up the emmc, and whether the steps above are likely to bring it back to life.
It sounds like your emmc is indeed bricked. I would go for the warranty exchange now. Just because you installed CM11 to SD does not mean it does not use emmc partitions. It still accesses and uses many of them (cache, rom, bootdata, /data/media, etc.). So there is opportunity for a brick. I would exchange it now while the cyanoboot logo does not show when booting without the SD.
Sent from my BN NookHD+ using XDA Premium HD app
Mf123 said:
I would like to know how I can check to see if the emmc is indeed broken.
Click to expand...
Click to collapse
You may find links and info in this post helpful http://forum.xda-developers.com/showthread.php?p=44810400
Thanks to both for replying. I feared that was the case.
I'm a bit disappointed that the SD card install (generally the option for those who want to leave the nook untouched) can in fact ruin the machine.
I've contacted the Nook website and will see what happens.
Mf123 said:
Thanks to both for replying. I feared that was the case.
I'm a bit disappointed that the SD card install (generally the option for those who want to leave the nook untouched) can in fact ruin the machine.
I've contacted the Nook website and will see what happens.
Click to expand...
Click to collapse
Just take your device to a store. They will exchange on the spot once they verify your registration on their computer. Of course don't tell them you were running CM, even on SD.
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
Just take your device to a store. They will exchange on the spot once they verify your registration on their computer. Of course don't tell them you were running CM, even on SD.
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
Thanks, but there are no BN stores in the UK. They don't even sell the Nook directly from their uk website anymore. I have to post it to the Netherlands and see what happens.
So, after 2 months, and a lot of arguing with customer services, I have finally got a replacement Nook through the post.
I am still keen to try CM, but want to be really sure that my Nook doesn't get bricked again. Is there any way of checking whether an sd card install is likely to trigger an emmc failure on my new Nook?
Mf123 said:
So, after 2 months, and a lot of arguing with customer services, I have finally got a replacement Nook through the post.
I am still keen to try CM, but want to be really sure that my Nook doesn't get bricked again. Is there any way of checking whether an sd card install is likely to trigger an emmc failure on my new Nook?
Click to expand...
Click to collapse
The best way to avoid bricking by CM11 is to not try CM11. I run CM 10.1.3 and have heard of no one bricking when running that.
Sent from my BN NookHD+ using XDA Premium HD app
Related
As an original Nook Color owner from its first day availability, I am now ready to make the leap to the HD+. My primary reason for this is the 8.9 inch screen which emulates "trade paperback" size which has always been my reading goal along with enhanced video.
I have put my NC through numerous iterations over the last two years plus and finally did a full conversion to Android 4.1 a few months ago bidding a permanent farewell to any remaining vestige of the BN software. As the final remaining issue for me was "reading in store" which I no longer need, it was not a difficult decision.
In perusing this forum, I appear to have run afoul of trying to determine if there is a currently viable track for complete conversion of the HD+ eMMc as I simply do not need or want the BN interface. I know full well there are rooted, sdcard, and "hybrid" variations well explained in this forum but simply cannot find or continue to overlook any mention/instruction for full internal conversion as an option.
Am I simply overlooking that info or are we not yet there? If that goal has not yet been obtained, what would be my closest non sdcard option?
I have nothing but accolades and praise for those providing us with the fruits of their efforts. My multiple and varied experiences with my NC provided a truly fascinating experinece and learning curve starting with basic rooting up through several dual boot variations and now in eMMc Jelly Bean and all of its remarkably functional glory! It is clearly continuing with the HD and the "+" and I wish to express my deepest thanks for those continuing efforts in advance.
Any reasoned advice, suggestions, and/or direction would be appreciated.
As yet there is no full replacement of the emmc. The boot loader lock that even checks system makes it very hard.
Sent from Droid 4 Running Codename Android
Verygreenhas said he believes it is possible but not on his priority list, see his CM10 thread. We don't have many developers working it yet. And being CM working properly, kernels, etc are priorities now.
Sent from my BNTV600 using xda app-developers app
I too came from the Nook Color and have enjoyed the versatility of that device. Unfortunately B&N has locked down this device to make it more difficult to modify it. Your only two choices now is to modify stock with my CWM zips or opt for running CM10/CM10.1 from SD. You can get my CWM zips from my HD/HD+ CWM thread linked in my signature.
Sent from my HD+ running CM10 on SD with XDA Premium
Get the HD+ and put cm10 via sdcard on it. If you use the right sdcsard (class 4? someone will correct me if I'm wrong) and dont look back. I came from the nook color 10.1 emmc myself. I know how soul crushing it was on there. Lag, reboots, lag, poor display, lag. Did I mention lag? I'd like an emmc too, but seriously you won't notice any difference. Its an amazing tablet with cm10 on it.
Sent from my Barnes & Noble Nook HD+ using Tapatalk HD
I have also had the Nook Color and the Nook Tablet.. the Nook HD/HD+ are awesome. I have always choose to ditch the stock B&N expereince. Currently booting CM10.1 from mircoSD on my NookHD, thanks to some awesome work by others, and its honestly great! maybe a few tiny little lags every now and then, but nothing close to a deal breaker. And its still early... so it can only get better from here. Going HD or HD+, you won't be dissapointed.
Actually this is strange that we dont have still bootloader lock hack. All tech things that i seen on xda forum are ulocked. And now some BN can lock it
I want help but i dont have knowledge for this stage. And with other words i need it too (run custom rom from emmc)..
datas0ft said:
Actually this is strange that we dont have still bootloader lock hack. All tech things that i seen on xda forum are ulocked. And now some BN can lock it
I want help but i dont have knowledge for this stage. And with other words i need it too (run custom rom from emmc)..
Click to expand...
Click to collapse
Verygreen says he thinks it can eventually be done, but his priority is perfecting CM on SD. He says no real need to run it internally when running on SD works so well.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Thanks and Update
leapinlar said:
Verygreen says he thinks it can eventually be done, but his priority is perfecting CM on SD. He says no real need to run it internally when running on SD works so well.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Click to expand...
Click to collapse
Thanks to all for your comments, updates, and suggestions. I opted to take the "easy way out" this time around and d/l n2a's $19.99 version for the HD+ and installed it on a 32 GB card. Oddly enough, could not get it to run on a new Sandisk Class 10 but it ran on an older class 4 or 6 card that I had used for converted film storage with my NC. Any idea why that happened?
BTW, when formatting a card for the HD+ should we use FAT32 or NTSC?
It is great to have a full JB interface back!
Not at all enamored of the current BN interface which I hope now to leave alone and eventually replace when full eMMc access is achieved. If JB could be made "ready for prime time" on the NC, then I am sure that it is just a matter of time until one of you has a full blown "Eureka" moment and shows the way to a full and total conversion of the HD+.
Will keep you all up-to-date regarding my experiences with the N2A setup.
Rooted Galaxy Nexus Android 4.2.1
Nook Color Android 4.1.2
Nook HD+ N2A SD Card Android 4.1.2
harryzee said:
BTW, when formatting a card for the HD+ should we use FAT32 or NTSC?
Click to expand...
Click to collapse
You must to look to this thread. There you find all what you need and step by step.
leapinlar said:
Verygreen says he thinks it can eventually be done, but his priority is perfecting CM on SD. He says no real need to run it internally when running on SD works so well.
Click to expand...
Click to collapse
Actually i need run it internally because i have 12 Nook HD+ and clients who use these just may pull out SD (maybe steal SD too). All restrictions which one i made on ROm for user side is not working anymore.
Seems i need directly constact with Verygreen.
Thanks about sharing information.
datas0ft said:
You must to look to this thread. There you find all what you need and step by step.
Not sure what the above direction has to do with which format (FAT32/NTSC) is best for SDcard use in the HD+ for either simple storage or alternate OS.
Did I miss something or was I unclear?
Click to expand...
Click to collapse
This quote at this thread is about SD card formating:
For first time install only (you will need 4G or bigger sdcard, smaller ones are not supported and not tested):
gunzip cwm image and write it to your sdcard (entire sdcard not just one partition of it), use either dd on Linux/MacOS or Win32 Image Writer for those impaired by Windows.
Click to expand...
Click to collapse
And when you follow this guide step by step, you dont need worry about formating your SD to wrong format.
harryzee said:
Oddly enough, could not get it to run on a new Sandisk Class 10 but it ran on an older class 4 or 6 card that I had used for converted film storage with my NC. Any idea why that happened?
BTW, when formatting a card for the HD+ should we use FAT32 or NTSC?
Click to expand...
Click to collapse
Not all cards are created equal. The recommended card for running a ROM is SanDisk class 4. Others may or may not work well.
And it does not matter what format you had on the card originally before you burned the image to the card. It gets overwritten.
But for using an SD with stock, the card should be formatted Fat32 or ExFat. NTSC does not work.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Aha!
datas0ft said:
This quote at this thread is about SD card formating:
And when you follow this guide step by step, you dont need worry about formating your SD to wrong format.
Click to expand...
Click to collapse
Aha! Now I understand!!
leapinlar said:
Not all cards are created equal. The recommended card for running a ROM is SanDisk class 4. Others may or may not work well.
And it does not matter what format you had on the card originally before you burned the image to the card. It gets overwritten.
But for using an SD with stock, the card should be formatted Fat32 or ExFat. NTSC does not work.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Click to expand...
Click to collapse
Many thanks for that clear explanation.
BTW, the N2A card (so far) is working well.
Anyone else experiencing an issue with the micro sd slot after rooting? it wont read the cards, but it does notice when you remove an sd card. Is there a fix for that issue and has anyone else encountered it?
dcoke said:
Anyone else experiencing an issue with the micro sd slot after rooting? it wont read the cards, but it does notice when you remove an sd card. Is there a fix for that issue and has anyone else encountered it?
Click to expand...
Click to collapse
How do you know it is not reading the card? Have you looked at ext_sdcard to see of it is there?
And how did you root 2.0.4? Most folks get automatically updated to 2.0.5.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
leapinlar said:
How do you know it is not reading the card? Have you looked at ext_sdcard to see of it is there?
And how did you root 2.0.4? Most folks get automatically updated to 2.0.5.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Click to expand...
Click to collapse
feel free to steal this little tip from me:
When starting from scratch after purposefully activating the 8 Boot Fail Safe, when it gets to the part where it's looking for an update, while its looking hold down "Power" and select OK to turn the device off interrupting the update process. When you turn it back on, you'll have to start the whole thing over again, but when it gets to the Update step it bypasses it thus cancelling out the 2.0.5 mandatory update. Now that you have 2.0.4 you can run your all-in-one and update cancel program before it has a chance to try updating again.
-Another helpful hint after reverting to stock firmware, turn off your internet until you run all the rooting software.
No I didn't check to see if it showed up in a root explorer.I'll check that out.
.....
Just checked and no it doesn't come up. I even removed and reinserted the microSD in question and still nothing. The little SD logo pops up on the screen (the big blue vector image one) but it never gets read in the device in system or root explorer.
Is there a way to fix it on test disk for windows?
dcoke said:
feel free to steal this little tip from me:
When starting from scratch after purposefully activating the 8 Boot Fail Safe, when it gets to the part where it's looking for an update, while its looking hold down "Power" and select OK to turn the device off interrupting the update process. When you turn it back on, you'll have to start the whole thing over again, but when it gets to the Update step it bypasses it thus cancelling out the 2.0.5 mandatory update. Now that you have 2.0.4 you can run your all-in-one and update cancel program before it has a chance to try updating again.
-Another helpful hint after reverting to stock firmware, turn off your internet until you run all the rooting software.
No I didn't check to see if it showed up in a root explorer.I'll check that out.
.....
Just checked and no it doesn't come up. I even removed and reinserted the microSD in question and still nothing. The little SD logo pops up on the screen (the big blue vector image one) but it never gets read in the device in system or root explorer.
Is there a way to fix it on test disk for windows?
Click to expand...
Click to collapse
Your system after an 8 failed boot reset and before an update is 2.0.4? If it is, PM me as I would like to get a copy of your factory zip.
And you looked for ext_sdcard in /mnt?
Sent from my Galaxy Tab running Tapatalk
Mnt, but of Course
leapinlar said:
Your system after an 8 failed boot reset and before an update is 2.0.4? If it is, PM me as I would like to get a copy of your factory zip.
And you looked for ext_sdcard in /mnt?
Sent from my Galaxy Tab running Tapatalk
Click to expand...
Click to collapse
I found it in mnt, man they really do everything strange on Nooks, haven't had one since the original Color. I see the problem. It's lacking any sort of permissions (read, write or anything). How do I get those to stick? since I've noticed things in Root tend to not stay permanent. and as for the PM, I'll get right on that. Thanks for all of your help.
dcoke said:
I found it in mnt, man they really do everything strange on Nooks, haven't had one since the original Color. I see the problem. It's lacking any sort of permissions (read, write or anything). How do I get those to stick? since I've noticed things in Root tend to not stay permanent. and as for the PM, I'll get right on that. Thanks for all of your help.
Click to expand...
Click to collapse
SD cards do not let you make permission changes. I'm not sure why. Are you sure it does not have read write permissions? Can you create a file there?
Read my section on data structures in my HD/HD+ tips thread linked in my signature. It explains why the HD's are structured the way they are.
And thanks for working on the PM.
Fixed?
leapinlar said:
SD cards do not let you make permission changes. I'm not sure why. Are you sure it does not have read write permissions? Can you create a file there?
Read my section on data structures in my HD/HD+ tips thread linked in my signature. It explains why the HD's are structured the way they are.
And thanks for working on the PM.
Click to expand...
Click to collapse
I think I figured it out. It seems that the cwmearly builds damage the sd cards, but once reflashed with the ones on your post it gets read just fine. I wanted it fixed since I couldn't find my other SD cards and had to resort into turning a 32gb into a 4gb card to install some zips (lame) and I wanted to get it back to its 32gb glory. So by rewriting my card with your 4gb image and putting it in my nook it got read and then I just formatted it on the nook and it was back to normal, though I had another card with the cwmearly img on it and it was going back to its old ways and repeated the previous steps and it was fine. so CWMearly was the problem.
I don't know how to make a clean back up without my data on it so this one will have my personal info (no credit card info, obviously) but maybe with your skills you can scrub it out of it. I'm not that well versed in this kind of stuff. I have an above average knowledge of android, but not any real knowledge of developing or ADB.
dcoke said:
I think I figured it out. It seems that the cwmearly builds damage the sd cards, but once reflashed with the ones on your post it gets read just fine. I wanted it fixed since I couldn't find my other SD cards and had to resort into turning a 32gb into a 4gb card to install some zips (lame) and I wanted to get it back to its 32gb glory. So by rewriting my card with your 4gb image and putting it in my nook it got read and then I just formatted it on the nook and it was back to normal, though I had another card with the cwmearly img on it and it was going back to its old ways and repeated the previous steps and it was fine. so CWMearly was the problem.
I don't know how to make a clean back up without my data on it so this one will have my personal info (no credit card info, obviously) but maybe with your skills you can scrub it out of it. I'm not that well versed in this kind of stuff. I have an above average knowledge of android, but not any real knowledge of developing or ADB.
Click to expand...
Click to collapse
No I don't want your backup, I want your factory.zip from partition 7. It won't have any of your stuff on it, it is just what comes from the factory. If you don't know how to get that, I can give you instructions.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Are you sure it's 2.0.4? Any particular reason you don't want to update to 2.0.5?
leapinlar said:
No I don't want your backup, I want your factory.zip from partition 7. It won't have any of your stuff on it, it is just what comes from the factory. If you don't know how to get that, I can give you instructions.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Click to expand...
Click to collapse
Any progress on getting that factory.zip? BTW, you did not say which device you have.
Sent with XDA Premium from my Nook HD+ running CM10 on SD
Hi All,
I have a Nook HD, recently purchased and then updated to BN 2.0.6 firmware during the BN registration process. I used the sdcard-cwm-early5.img.gz as referenced in Verygreen's post here to create a bootable CWM SD. I then installed the CM 10.1 build posted in thread by Bokbokban here. Finally, I installed latest gapps from goo.im. All seems to be pretty good, excepting that sometimes, seemingly randomly, the device will reboot itself, at which time it bypasses the SD during boot and goes straight for the stock BN rom on the emmc.
Any ideas on how to proceed? I haven't seen a pattern in the reboots yet, so I am not sure what may or may not be causing them. While I'm not exactly a newb with all that is involved with rooting/flashing various android devices (I own 5 of them), I could use some guidance on how to troubleshoot or diagnose problems like this.
I am confused. You used an HD+ image from verygreen and an HD ROM from bokbokan. How did you make that work? They should not have worked.
But if you really only used HD files, the reboot problem is probably the brand and class of the SD you used. It needs to be SanDisk class 4. We have that problem a lot on the HD+. It is cause by a kernel panic when trying to write to SD.
The solution is to get a better SD or use bokbokan's new Hybrid SD setup that puts /data on internal memory so SD speed does not matter.
Sent from my Nook HD running CM10.1 on Hybrid SD
leapinlar said:
I am confused. You used an HD+ image from verygreen and an HD ROM from bokbokan. How did you make that work? They should not have worked.
But if you really only used HD files, the reboot problem is probably the brand and class of the SD you used. It needs to be SanDisk class 4. We have that problem a lot on the HD+. It is cause by a kernel panic when trying to write to SD.
The solution is to get a better SD or use bokbokan's new Hybrid SD setup that puts /data on internal memory so SD speed does not matter.
Sent from my Nook HD running CM10.1 on Hybrid SD
Click to expand...
Click to collapse
Thanks for your prompt reply. To be clearer, I did not use the HD+ image, but I did use the CWM image Verygreen posted, 'sdcard-cwm-early5.img.gz', as that version supported using CWM to read .zip's from /emmc (in other words, those that were downloaded via BN stock browser).
At the risk of sounding like I am second-guessing you, I think it's worth noting that I had no trouble with many things related to writing to the SD card: writing the CWM image, booting into CWM from the SD, writing the CM10.1 image onto the card, booting from the 10.1 rom, etc... So if it is, as you say, the card having write issues and causing a kernel panic, I'm wondering how I can prove that. I will check the kernel logs when I get home.
I'm using a Sandisk 'ultra' class 10 16gb... I get that 'class 10' generally means 'crappy for small random write requests', but I've had good luck with this particular card on other platforms that are sensitive to consistency of write speeds (G2, Nook Color). However, I'll try a class-4 Sandisk per your suggestion.
Follow-up question: I can't seem to find a solid guide that shows how to install to emmc... is that a new frontier for this device? Is it just that nobody has bothered, or is there a problem with original bootloader supporting that?
redfriar said:
Follow-up question: I can't seem to find a solid guide that shows how to install to emmc... is that a new frontier for this device? Is it just that nobody has bothered, or is there a problem with original bootloader supporting that?
Click to expand...
Click to collapse
The internal bootloader is locked down pretty good. Some day someone will be able to break it, but for now no one has.
Sent from my Nook HD+ running CM10 on Hybrid SD
Btw, I have had really bad results with my San disk CL 10. You may find other cars will work better.
Sent from my Barnes & Noble Nook HD+ using xda app-developers app
Hello,
First off, thanks to e.mote for the CyanogenMod 10.1 for Dummies guide and to the work put in by verygreen, leapinlar and bokbokan. The guide was simple and straightforward, I installed CM10.1 and CWM (seemingly) without a hitch.
However, when attempting to do a baseline backup, I'm running into some problems. I've searched the forum overall and gone through pages and pages in the Nook sections and not found any real solution. On my 8GB HD, when rebooting to recovery and attempting to backup to an SD card, I'm having the following issues:
When CWM loads, I get a "warning: no file_contexts" message. I've read mixed things about whether this is significant or not and what to do to correct it.
When I go to backup and restore>backup it seems to backup to the SD card without a hitch (although it has shown differing amounts of free space on the cards whenever I've attempted this). But when I insert the card into my computer to copy the backup, the only thing on the card is a folder called "LOST.DIR" and all the space but 3.1MB is free. I've done this 3-4 times so far, with two different microSD cards (one 4GB, one 32GB). I've both checked it and formatted the card (in FAT32) on a computer running Windows XP and one running OSX. Same results on both every time.
At some point when attempting to do the backup, the screen of the Nook begins to flash/flicker and doesn't stop until I restart it.
The first time I tried to do the backup, after I tried to restart, it didn't boot back up and the power button was unresponsive. Possibly this was due to overheating? I plugged it into the charger and it started up on its own after about 10 minutes.
Anyone else encounter this? Any solutions. Obviously I want to be able to back things up. I just rooted the device this evening, so I'd rather to not have to go through the install process all over again rather than have a proper backup.
Thanks!
You need to tell us which version of CWM you are running. And is installed to internal memory or SD?
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
You need to tell us which version of CWM you are running. And is installed to internal memory or SD?
Click to expand...
Click to collapse
Ah, of course! Sorry, that's what I get for doing this so late. Okay, so it's installed to the internal memory. The files I downloaded were this and this. When I reboot into recovery is says "EMMC CWM-based recovery v6.0.3.6".
Thanks
elcapitansmirk said:
Ah, of course! Sorry, that's what I get for doing this so late. Okay, so it's installed to the internal memory. The files I downloaded were this and this. When I reboot into recovery is says "EMMC CWM-based recovery v6.0.3.6".
Thanks
Click to expand...
Click to collapse
Ah, ok. That means you have the newest version which puts the backup on internal memory. If you look at the menu choices closely, you will see it says to internal sdcard and the other choice is to external sdcard. So you will not find the backup on your external card.
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
Ah, ok. That means you have the newest version which puts the backup on internal memory. If you look at the menu choices closely, you will see it says to internal sdcard and the other choice is to external sdcard. So you will not find the backup on your external card.
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
Thanks! That'll teach me to just blindly follow instructions rather than looking around and exploring on my own - I didn't even notice the "Backup to External SD" option. So, thanks for your patience, your work on this and your speedy replies. Seems like all is well now.
Hi all,
please help me on this, please.
I think my hd+ was messed up. I remember at first I had CWM boot environment. but when I was flashing NookHDplus-factory-2.20-plain-stock.zip, it crashed. I didn't realize the emmc structure might be lost, I restart and flashed the twrp_recovery_ovation_4.zip into the machine(I heard from somewhere else it might be helpful). but now it is even worse.
I have tried 3 bootable microSD card(1. pny 4G, class4, 2. kingston 8G, class4, 3. sandisk 4G, class2) 1. is imaged with emmc-cwm-early3.1.img; 2. is imaged with nookHDplus-bootable-cWM-6028-for-stock-4GB-rev4-(05.11.13).zip. and 3 is formatted with SDformat & actived and with files from NookHDplus-bootable-CWM-6028-for stock-BOOTFILES-r4-(05.15.13).rar.
1)so without microSD card in slot, the hd+ did as follows(the power supplier is plugged in for indication):
green light turn on 4 second-->nook icon(with adobe reader statement) 2 second-->white cyanoboot(and blue universal bootloader) icon 4 second
2) with class 4 microSD card.-->loop
green light turn on 4 second-->nook icon(with adobe reader statement) 2 second-->white cyanoboot(and blue universal bootloader) icon 15 second.-->loop
3 with class 2 card.
green light turn on 4 second-->nook icon(with adobe reader statement) 2 second-->white cyanoboot(and blue universal bootloader) icon 30 second-->loop.
So it looks hd+ saw the microSD card, but still cannot enter the correct procedure.
Does anyone has any idea what I can do now? I was so frustrated...
Thank you so much in advance!
It might be that your emmc is bricked. All of the cards require that at least some of emmc is working. Verygreen made a noemmc CWM and ROM somewhere that I don't have a link for. Try searching the forum. Others have reported success with that in booting to CWM and getting a ROM working on SD.
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
It might be that your emmc is bricked. All of the cards require that at least some of emmc is working. Verygreen made a noemmc CWM and ROM somewhere that I don't have a link for. Try searching the forum. Others have reported success with that in booting to CWM and getting a ROM working on SD.
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Thank you very much! I would like to try it in the weekend. But I noticed in the discussions, that the OS on sdcard will also use some part of emmc, so if the emmc has errors in those part, the OS will not operate successfully, right?
By the way, is there any possibilities that you professionals make a kind of 'tool' microSD, that can automatically format and rebuild the file structures on a messed emmc and then copy/restore the stock OS to it without any manual input. Or even better, since the space of SD card is usually big enough, people can copy different OS zips into it, so that the tool card can let people to choose which OS to be installed after it automatically format and rebuild the file system structure on emmc.
Thanks again.
peanuto said:
Thank you very much! I would like to try it in the weekend. But I noticed in the discussions, that the OS on sdcard will also use some part of emmc, so if the emmc has errors in those part, the OS will not operate successfully, right?
By the way, is there any possibilities that you professionals make a kind of 'tool' microSD, that can automatically format and rebuild the file structures on a messed emmc and then copy/restore the stock OS to it without any manual input. Or even better, since the space of SD card is usually big enough, people can copy different OS zips into it, so that the tool card can let people to choose which OS to be installed after it automatically format and rebuild the file system structure on emmc.
Thanks again.
Click to expand...
Click to collapse
Not me. It is too complex on the HD/HD+.
And you are right, the status of emmc can effect SD installs.
Sent from my BN NookHD+ using XDA Premium HD app