It may be a stupid question .. Do i have to check the 3 boxes
backup existing rom
wipe data and cache
wipe dalvik cache
every time i do a update ??
Thks
No you do not have to. I only check wipe dalvik which is also optional,but has resulted in better performance for most users here. If you check wipe data and cache then all of your apps will be deleted and you will have to reinstall.
I am also basing this on guessing that you are running CM7, please let me know if that isn't correct.
superDel said:
It may be a stupid question .. Do i have to check the 3 boxes
backup existing rom
wipe data and cache
wipe dalvik cache
every time i do a update ??
Thks
Click to expand...
Click to collapse
You don't "have to" do a backup but it is good to in case something is messed up. I think if you wipe data it wipes your existing apps so I don't do that. But yeah I would definitely wipe dalvik.
superDel said:
It may be a stupid question .. Do i have to check the 3 boxes
backup existing rom
wipe data and cache
wipe dalvik cache
every time i do a update ??
Thks
Click to expand...
Click to collapse
depends on what rom your are flashing. So with that, let me ask the question. What rom are you flashing? If you're using CM7, those roms can technically be flashed without wiping anything although you may want to wipe the dalvik cache just to play it safe. In doing so you won't need to re-install any apps or enter your account data over again. Some other roms automatically wipe for you. But like others have suggested, you should get into the practice of trying to wipe whenever you can, and use titanium to only restore your apps. Hope that helps.
This is completely irrelevant but I noticed that your signature says do not click thanks. I don't know if you have that there so people will click it, but I clicked it just to be an ass lol. Meant for above poster ^
Edit: Okay I get it now lol. I didn't really look at it, but I see it now so ignore that lol.
i know what im gonna post is not relevant to the actual topic, but since it says "update" as a title, ill post my little rant anyway..
for some odd reason my google search layout has been updated and i really dont like it..
it's on big fonts, compressed on the right side of the screen and there's a huge empty space on the left.. sooo ugly! ughh and really confusing to look at..
why is android's UI/design so mediocre? is google ever going to improve this area? even google gadgets is weak compared to yahoo widgets..
end of my rant thank you.. pfft
Can someone zip up a Prime SuperWipe? Im having some problems with roms not functioning the correct way after flash i still cant use home key or tap the time for the setting shortcut. I was flashing my phone just now and i saw it also formats the .android secure. and I realized that i dont remember seeing that get wiped with the current reset clears. anyone know how to do it manually?
Thanks in Advance
stealthee said:
Can someone zip up a Prime SuperWipe? Im having some problems with roms not functioning the correct way after flash i still cant use home key or tap the time for the setting shortcut. I was flashing my phone just now and i saw it also formats the .android secure. and I realized that i dont remember seeing that get wiped with the current reset clears. anyone know how to do it manually?
Thanks in Advance
Click to expand...
Click to collapse
+1 on this one
Not unlocked yet, but I certainly +1
Will need a SuperWipe.
I could never understand whole superwipe, thing. How is it different to wipe from recovery?
And chefs could always include a script to get wipe done automatically in the rom, if wipe is required.
Sent from my Transformer Prime TF201 using XDA Premium HD app
tinky1 said:
I could never understand whole superwipe, thing. How is it different to wipe from recovery?
And chefs could always include a script to get wipe done automatically in the rom, if wipe is required.
Sent from my Transformer Prime TF201 using XDA Premium HD app
Click to expand...
Click to collapse
Because then it's just 1 process to wipe everything.
And some things that may need clearing out aren't in cache/data?
And as to the cooking in auto-wipe, that would be OK if it was used only when needed, but most likely something like that would then be included regardless and then you'd wipe even if you didn't need to.
lol, have to say. I regularly check back on these forums and cannot believe how many posts you post in. Your everywhere! Get a job! I've been here since 2006 and only have 50 odd.
Kidding mate, but it makes me laugh.....
buxtahuda said:
Because then it's just 1 process to wipe everything.
And some things that may need clearing out aren't in cache/data?
And as to the cooking in auto-wipe, that would be OK if it was used only when needed, but most likely something like that would then be included regardless and then you'd wipe even if you didn't need to.
Click to expand...
Click to collapse
It takes more clicks to get to siperwipe and start it than to wipe data and caches manually. I don't get the point, but each to its own I guess.
Sent through the wormhole from my CoinInserted Sensation OG.
Full Format
stealthee said:
Can someone zip up a Prime SuperWipe? Im having some problems with roms not functioning the correct way after flash i still cant use home key or tap the time for the setting shortcut. I was flashing my phone just now and i saw it also formats the .android secure. and I realized that i dont remember seeing that get wiped with the current reset clears. anyone know how to do it manually?
Thanks in Advance
Click to expand...
Click to collapse
Not sure what a "SuperWipe" does exactly, but here is a script I made when I was having issues switching from different ROMS... It formats:
/dev/block/mmcblk0p1 - /system
/dev/block/mmcblk0p2 - /cache
/dev/block/mmcblk0p8 - /data
*** WARNING ***
Use this file at your own risk...
Be sure to backup any data you would like to keep, this script formats your internal SD and anything that lives on /dev/block/mmcblk0p8 (/data)
Doesn't CWM include every command you need to completely wipe your TFP before flashing a new rom?
I just got my TFP and I am going to wait a month or so before voiding my warranty by flashing a rom so I do not know what CWM options show for the TFP. On my phone, CWM can wipe user data/factory reset/format; wipe cache partition; wipe Dalvik cache; clear battery stats.
Joe-retired said:
Doesn't CWM include every command you need to completely wipe your TFP before flashing a new rom?
I just got my TFP and I am going to wait a month or so before voiding my warranty by flashing a rom so I do not know what CWM options show for the TFP. On my phone, CWM can wipe user data/factory reset/format; wipe cache partition; wipe Dalvik cache; clear battery stats.
Click to expand...
Click to collapse
Nope It did not in my situation, I tried CWM "wipe user data/factory reset", cleared all stats and cache.. there was still stuff left over in "/data" I believe..
And all the ROMS I have come across do not format "/dev/block/mmcblk0p8",
it's Most likely because:
"/data (which is mmcblk8) contains also /data/media/" which actually is your sdcard. So wiping /data also wipes the sdcard - @Diamondback
Click to expand...
Click to collapse
I'm a little nervous for formatting with that. Wont it also format the internal SD? Would kind of delete the rom i was trying to flash?
Ok tried it and got an error.
-- Installing: /sdcard/Roms/signed_ful-format_tf201.zip
Finding update package...
Opening update package...
Installing update...
E:Error in /sdcard/Roms/signed_ful-format_tf201.zip
(Status 0)
Installation Aborted.
stealthee said:
Ok tried it and got an error.
-- Installing: /sdcard/Roms/signed_ful-format_tf201.zip
Finding update package...
Click to expand...
Click to collapse
Hmm strange..
What ROM are you trying to install? I can make a update-script for it that will do the wipe then install the ROM in one shot if you like..?
Or you can just do it your self...
INSTRUCTIONS:
1. open the ROM(zip file) up with 7-zip or something comparable
2. browse to: META-INF\com\google\android\
3. extract the update-script file to your desktop
4. open the "update-script" with text editor (I use Notepad++)
5. Find the section where it does the formating (You will see something like: format("ext4", "MMC", "/dev/block/mmcblk0p1"); )
6. Now add the following lines from the quotes (before the section that formats the system):
CACHE
ui_print("Formatting cache: /dev/block/mmcblk0p2 ext4");
format("ext4", "MMC", "/dev/block/mmcblk0p2");
run_program("/sbin/tune2fs", "-m", "0", "/dev/block/mmcblk0p2");
Click to expand...
Click to collapse
DATA
ui_print("Formatting data: /dev/block/mmcblk0p8 ext4");
format("ext4", "MMC", "/dev/block/mmcblk0p8");
run_program("/sbin/tune2fs", "-m", "0", "/dev/block/mmcblk0p8");
Click to expand...
Click to collapse
wont that also delete the /Roms directory on my SD card? Trying to flash jermaine151_9.4.2.15.zip
stealthee said:
wont that also delete the /Roms directory on my SD card? Trying to flash jermaine151_9.4.2.15.zip
Click to expand...
Click to collapse
Just the internal SDcard, you would need to use a "external sdcard" which is located somewhere in "/dev/block/vold/" (It won't touch the external sd)
snakeybidder said:
lol, have to say. I regularly check back on these forums and cannot believe how many posts you post in. Your everywhere! Get a job! I've been here since 2006 and only have 50 odd.
Kidding mate, but it makes me laugh.....
Click to expand...
Click to collapse
?? At least quote so we can understand who you're talking about.
tinky1 said:
It takes more clicks to get to siperwipe and start it than to wipe data and caches manually. I don't get the point, but each to its own I guess.
Sent through the wormhole from my CoinInserted Sensation OG.
Click to expand...
Click to collapse
I install tons of apps and therefore it takes an unknown amount of time every time I manually wipe all three. I don't want to have to baby-sit my phone for 5 minutes just to wipe three directories, so I run SuperWipeG2+; then my phone can be unattended and will vibrate me to alert me the format is finished and recovery is rebooting. Then I proceed with flashing/restoring/whatever.
Sent from my Transformer Prime TF201 using XDA Premium HD via my tethered HTC Vision
Ok i was under the impression that you could not flash a rom from external sdcard.
\MicroSD\Rom\jermaine151_9.4.2.15.zip is where it is on my external sd card.
ryun33 said:
Just the internal SDcard, you would need to use a "external sdcard" which is located somewhere in "/dev/block/vold/" (It won't touch the external sd)
Click to expand...
Click to collapse
here is a update script ONLY for: jermaine151_9.4.2.15
It will format /data
Just remove the ".txt" extension and drag it into the zip file:
jermaine151_9.4.2.15.zip\META-INF\com\google\android\
I was able to get my pad working again by modifing that jermaine151 updater-script. i changed the mmcblk1 to 2 and i did not see a format for the mmcblk08 so i changed the mount to a format and added the run command. Crossed my fingers and prayed i did not end up with a huge brick lol. It seemed to flash really fast. then i realized i had keys back to working and rom functioning correctly again. i then factory reset and went to flash the jermaine again but the sdcard was empty lol. had to go back and move a unmodified copy of jermaine to my now factory restored sdcard and reflashed all is well in the Stealtheee house again ! YAY ! Thanks so much. all the normal formats in the world were doing jack didily.
Hi.
What is beeing wiped when we apply "Wipe cache" option from recovery menu? So what does "cache" in the recovery menu refers to? Is doing this useful, without firmware update or wipe data-factory reset?
Thanks.
_lightning_ said:
Hi.
What is beeing wiped when we apply "Wipe cache" option from recovery menu? So what does "cache" in the recovery menu refers to? Is doing this useful, without firmware update or wipe data-factory reset?
Thanks.
Click to expand...
Click to collapse
The cache (cache - another useful article; It's basically the same in android) is being wiped . It refers to all those those files created used as cache. It may be useful to free up some memory (usually not too much though).
Theonew said:
The cache (cache - another useful article; It's basically the same in android) is being wiped . It refers to all those those files created used as cache. It may be useful to free up some memory (usually not too much though).
Click to expand...
Click to collapse
Thanks. I basically know what the cache is. And I took a look at those articles but I don't think that I need such detailed info about caching. Actually, I wanted to know which cache is being wiped. System cache, disk/memory cache, installed apps' cache etc. ?
up
I think that only files from /cache partition are deleted after wipe
Sent using r800i with DoomKernel v14 (1.21ghz)
What are all wiped ?
Theonew said:
The cache (cache - another useful article; It's basically the same in android) is being wiped . It refers to all those those files created used as cache. It may be useful to free up some memory (usually not too much though).
Click to expand...
Click to collapse
hi ,
will the user info game stats contacts are wiped when we "wipe catch"?
vignesh2 said:
hi ,
will the user info game stats contacts are wiped when we "wipe catch"?
Click to expand...
Click to collapse
Nope. One of purpose of cache partition is to keep some data when you do update through recovery
is this going to work for me http://androidteen.com/htc-one-update-to-android-4-2-2-jelly-bean-official-firmware/ ??? sorry im noob in flashing roms i know basics only...if you have the 4.1.2 ruu please provide me with instructions...thanks a lot
Ashraf M said:
is this going to work for me http://androidteen.com/htc-one-update-to-android-4-2-2-jelly-bean-official-firmware/ ??? sorry im noob in flashing roms i know basics only...if you have the 4.1.2 ruu please provide me with instructions...thanks a lot
Click to expand...
Click to collapse
I don't know if it'll work for you since you haven't even stated your device . It also seems that you are ahead of yourself at the moment . Read through and learn more before attempting anything or else you may screw up your device.
P.S. - Your question doesn't belong in this thread.
Sent from my Nexus 4
Hello all
How often should you clear cache or fix permission using CWM?
Jim
Sent from my VEGAn-TAB using XDA
Personally I do it when ever the ROM that I am on starts acting a bit quirky. Which is not very often if you are running a stable build like VeganTab, CM7 or even the Froyo ROMs that have been out for a while. If you ever see yourself loading up a bunch of apps and running them allot. Over time you might would want to clear the cache and definitely fix permissions to get things back in order.
jweir said:
How often should you clear cache or fix permission using CWM?
Click to expand...
Click to collapse
They're not something you need to do often, or even occasionally, as part of some preventive maintenance regimen.
If you switch ROMs, then you will have to clear cache. Actually, it's best to do a "wipe data/factory reset" in CWM in this case--cache will get formatted in the process.
You would want to clear cache if you upgrade the current ROM; it is better, though, to instead wipe dalvik-cache. Similarly, if you upgrade an app manually--ie. not via the Market or the usual Android update process: eg. by overwriting an app in /system/app or /data/app and rebooting the system--you might want to clear cache.
You might have to clear cache after powering on the tablet after a long (weeks, months) period of inactivity. In this case, the battery will go flat and the system will lose its date and time--going back in time, so to speak. This might, in turn,cause cached data to go out of whack--though Android should take care of this normally.
The "fix permissions" step is needed even less. This link explains why you would want to use it: Again, it might be needed after a ROM update, and not otherwise. This means that doing a fix permissions after a SD card repartition or a wipe data/factory reset step is nonsensical--the fix_permissions script operates on existing data.
hi,
this ROM works very nice for me, thanks all the deveopers!
i have few questions:
(1) since this ROM has OTA updater (it seems, from the changelog), next time when the new version is realeased, can i just update the ROM via OTA updater?
(2) i dont really understand what “Wipe cache/dalvik” and “Wipe data / factory reset” really do. my guess is that “Wipe data / factory reset” repartitions the internal flash memory of the original memory, so we can use all the memory for our purpose. (not like original Nook Tablet, in which they dedicate only 1GB for personal usage)
if i understand all these correctly, this means next time if i flash the new ROM and want to keep the old data, i should not do "Wipe data / factory reset", but only need to do "Wipe cache/dalvik"? is this correct?
thanks so much,
Jun
junkoi said:
hi,
this ROM works very nice for me, thanks all the deveopers!
i have few questions:
(1) since this ROM has OTA updater (it seems, from the changelog), next time when the new version is realeased, can i just update the ROM via OTA updater?
(2) i dont really understand what “Wipe cache/dalvik” and “Wipe data / factory reset” really do. my guess is that “Wipe data / factory reset” repartitions the internal flash memory of the original memory, so we can use all the memory for our purpose. (not like original Nook Tablet, in which they dedicate only 1GB for personal usage)
if i understand all these correctly, this means next time if i flash the new ROM and want to keep the old data, i should not do "Wipe data / factory reset", but only need to do "Wipe cache/dalvik"? is this correct?
thanks so much,
Jun
Click to expand...
Click to collapse
Wipe data/factory reset is an option in CWM Recovery. Really all it does (from the screen messages) is format both /data and /cache.
Assuming you have CWM Recovery (though I imagine that there are similar entries in TWRP, I've just never used it), to wipe both of the caches you will first need to go to the entry "Wipe Cache Partition", which I believe is directly below Wipe Data/Factory Reset. Do that 3x (that's always been the recommendation, anyway) then go to Advanced and click on Wipe Dalvik Cache (again, 3x).
Again, assuming CWM Recovery, when you're in the recovery Vol Up/Down goes up and down in the list, the 'n' key is for Enter, and the Pwr button goes back.
I don't know about the OTA Updater. I always download and install ROMs (on both my phone and my NT) via Recovery.
Since this is a CM10 based rom you probably don't want to do the ota updater since that is a Cyanogenmod feature. This rom is optimized for the Nook from the CM10 Source I would presume. I personally tried the ota uldater since i get the notifications all the time but i get an error message something like "can't verify the source with a string of numbers". Stick to the recovery based flash installation.
Sent from my SPH-L710 using xda app-developers app
---------- Post added at 10:48 AM ---------- Previous post was at 10:10 AM ----------
I agree with liquidzoo that you should probably do the wipe cache, wipe dalvik cache and factory reset 3times seems like overkill but you can never be too safe. Also i use twrp recovery and click the system button and wipe system a few times as well.
Sent from my SPH-L710 using xda app-developers app
kobhomye said:
I agree with liquidzoo that you should probably do the wipe cache, wipe dalvik cache and factory reset 3times seems like overkill but you can never be too safe. Also i use twrp recovery and click the system button and wipe system a few times as well.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I wipe /system 3x as well (under Mounts in CWM Recovery) when I'm installing a new ROM.
liquidzoo said:
I wipe /system 3x as well (under Mounts in CWM Recovery) when I'm installing a new ROM.
Click to expand...
Click to collapse
I'm not picking on you personally, but deleting and/or wiping partitions (in the case of /system) or directories (dalvik-cache) three times as opposed to once is completely unnecessary. You'll gain nothing by running the command three times over running it once, assuming you received no errors the first time.
When wiping the dalvik cache, both CM recovery and TWRP perform an "rm -rf /data/dalvik-cache" command using the shell. It's not Windows, and is unlikely to fail when passed the "-f (force)" option along with the "-r (recursive)" option.
In the case of wiping the /system partition, again both CM and TWRP write out zeros to clear the data on the partition. I would be suprised if CWM acted differently from CM and TWRP when wiping dalvik-cache and /system.
The only reason I bothered to look into what these commands actually do is to prevent a user from thinking there's a corellation between a failure to wipe 3x versus a problem they're having. If a 3x wipe "fixes" something for you, whatever the problem was, it's very unlikely that the second or third wipe was what fixed it but instead it was more likely a result of a clean install of the ROM.
References from source:
TWRP Wipe Dalvik - https://github.com/TeamWin/Team-Win...548de276b62c0e9af8661e/extra-functions.c#L986
TWRP Wipe/Format System - https://github.com/TeamWin/Team-Win...8de276b62c0e9af8661e/mtdutils/mtdutils.c#L498
CM Wipe Dalvik - https://github.com/CyanogenMod/andr...aa7ff3d06d5dd115b16c/extendedcommands.c#L1292
CM Wipe/Format System - https://github.com/CyanogenMod/andr...aa7ff3d06d5dd115b16c/mtdutils/mtdutils.c#L498
Have fun modding!
No worries, it's just something I've always done as it's been recommended to me in the past (there are some ROM developers that recommend 5x, actually). I'm not saying that 3x over 1x is any better, but I've never had issues. YMMV, but it doesn't take much more time and I like being thorough.
liquidzoo said:
Wipe data/factory reset is an option in CWM Recovery. Really all it does (from the screen messages) is format both /data and /cache.
Assuming you have CWM Recovery (though I imagine that there are similar entries in TWRP, I've just never used it), to wipe both of the caches you will first need to go to the entry "Wipe Cache Partition", which I believe is directly below Wipe Data/Factory Reset. Do that 3x (that's always been the recommendation, anyway) then go to Advanced and click on Wipe Dalvik Cache (again, 3x).
Click to expand...
Click to collapse
sorry, but can you confirm that when i upgrade to the new ROM (from the same author), it is really necessary to Wipe cache &Dalvik cache?
i am confused because somebody told me that i can just flash the ROM by installing the ZIP file (containing the ROM), and reboot the Nook without having to wipe or clean anything.
thanks,
JK
Flashing a ROM
junkoi said:
sorry, but can you confirm that when i upgrade to the new ROM (from the same author), it is really necessary to Wipe cache &Dalvik cache?
i am confused because somebody told me that i can just flash the ROM by installing the ZIP file (containing the ROM), and reboot the Nook without having to wipe or clean anything.
thanks,
JK
Click to expand...
Click to collapse
I don't know if I am doing it right or wrong but I have flashed numerous ROMs and lately have flashed every version of SGT7+CM10+Cherry Picks,By meghd00t. from 24/09 thru my current installation of 08/10 with only one glitch and that was when I flashed enhancements v2 on top of v1.
I have never had any other issues with the above mentioned ROMs except when I flashed 04/10 with enhancement v2. I didn't have the tablet option.
The way I do it is as follows:
1. format /system
2. format /data
3. Flash ROM
4. Flash CWM emmc
5. Flash GAPPs
6. Reset Factory/format data
7. Remove CWM SD card put in data SD Card with Flash Player (no longer avail on Google Play)
8. Boot from CWM menu
Takes awhile to boot this first time. When booted up I bypass the setup screens.
9. Manually set up wireless (need to access auth web site at work and need wireless to be working to accomplish that)
10. Browse to a web site and get redirected to auth page.
11. Auth
12. Set up Google account and other settings, especially under Security <Install from other locations>
13. Download apps I want from Google.
At this first boot SD card is not mounted.
14. Shut down and do a cold boot.
Now I can see SD Card.
15. Install Flash Player from External SD Card.
16. Install Crackle from Play Store.
Now I check Pandora for Audio, Crackle for Video, other apps I use, utilities, keyboards, launchers, games, etc.
So far since Version 24/09 everything has worked for me with the two exceptions above, tablet mode with 04/10 with enhancement v2 and when I flashed enhancement v2 over enhancement v1.
I am now running 08/10 and am very happy with the performance, battery drain is more than CM7 but that is to be expected from a fairly new ROM but not so bad that it is unacceptable, to me at least.
I have never had a black screen or arbitrary reboot (knock on wood). However I do turn my tablet off when I am finished using it, so don't know about deep sleep. I'm using OnDemand, and three launchers without one being the default....Apex, Nova and Trebucket.
All I can say is these developers really ROCK, way to go guys!
--------------------------------------------------------------------------------
MojoGB said:
The way I do it is as follows:
1. format /system
2. format /data
3. Flash ROM
4. Flash CWM emmc
5. Flash GAPPs
6. Reset Factory/format data
7. Remove CWM SD card put in data SD Card with Flash Player (no longer avail on Google Play)
8. Boot from CWM menu
Click to expand...
Click to collapse
You don't need to re-flash CWM every time you flash a ROM. Also, it doesn't make sense to me why you would do a factory reset/format after flashing the new ROM, I would think it would be done prior to flashing the ROM but maybe it doesn't make a difference, I don't know.
I've got TWRP installed to the emmc so I just download the new ROM to the SD with GooManager, reboot into recovery, do a backup, factory reset, flash new ROM & GApps and reboot. Only takes a few minutes.
Reflash ROM
LifeWOutMilk said:
You don't need to re-flash CWM every time you flash a ROM. Also, it doesn't make sense to me why you would do a factory reset/format after flashing the new ROM, I would think it would be done prior to flashing the ROM but maybe it doesn't make a difference, I don't know.
I've got TWRP installed to the emmc so I just download the new ROM to the SD with GooManager, reboot into recovery, do a backup, factory reset, flash new ROM & GApps and reboot. Only takes a few minutes.
Click to expand...
Click to collapse
Tried it as you mentioned, doing a factory reset before flashing the ROM and got a black screen and wouldn't boot. May have been a fluke but the way I mentioned above gives me a good image and alway boots. Don't know why, but if it works for me, I will continue to do it this way as long as it works for me. I have flashed numerous other ROMs the same way with good results each time.
junkoi said:
sorry, but can you confirm that when i upgrade to the new ROM (from the same author), it is really necessary to Wipe cache &Dalvik cache?
i am confused because somebody told me that i can just flash the ROM by installing the ZIP file (containing the ROM), and reboot the Nook without having to wipe or clean anything.
thanks,
JK
Click to expand...
Click to collapse
For an update, yes it is recommended to clear both caches. To be clear, this is only for an update. If it is a new ROM, or if the author recommends it, you should also wipe /data and /system first.
You can just flash without clearing them, but you might run into unexpected issues, so it's not recommended.
MojoGB said:
Tried it as you mentioned, doing a factory reset before flashing the ROM and got a black screen and wouldn't boot. May have been a fluke but the way I mentioned above gives me a good image and alway boots. Don't know why, but if it works for me, I will continue to do it this way as long as it works for me. I have flashed numerous other ROMs the same way with good results each time.
Click to expand...
Click to collapse
I get a black screen for a while on first boot too, but it only last a couple minutes at the most and if you shine a bright light at the screen you can see the CM logo spinning. Are you sure it was hung?
Sent from my Barnes & Noble Nook Tablet using xda premium
When you clear the Dalvik cache, it clears out data stored in your applications. When you turn on your Nook after clearing the Dalvik, the first thing it does is it rebuilds the Dalvik cache, that's why it seemed like it hung on startup. I believe the long black screen in the beginning is when it rebuilds Dalvik for core Android apps and then when it says "Optimizing Apps", that's for the rest of your applications. The more apps you have, the longer it will take to build the Dalvik. No need to freak out, just a little patience is all you need. Correct me if I'm wrong, however, as I'm still pretty much a noob at this... :laugh:
Flash a Rom
topdawg7793 said:
When you clear the Dalvik cache, it cleares out data stored in your applications. When you turn on your Nook after clearing the Dalvik, the first thing it does is it rebuilds the Dalvik cache, that's why it seemed like it hung on startup. I believe the long black screen in the beginning is when it rebuilds dalvik for core Android apps and then when it says "Optimizing Apps", that's for the rest of your applications. The more apps you have, the longer it will take to build the dalvik. No need to freak out, just a little patience is all you need. Correct me if I'm wrong, however, as I'm still pretty much a noob at this... :laugh:
Click to expand...
Click to collapse
Well fhe screen was black, no light at all and I waited for over five minutes for the Flash Screen to come up and it never did. Yes I know when you are waiting time drags. But due to the ROMS always taking awhile to boot up the first time I actually pay attention to how long it takes. No more then 2 minutes in my experience. I had to hold the power button in for a long time until it finally booted in B&N Recovery. Used my sequence mentioned in earlier post to flash the ROM again and everything worked as it should, GREAT. The number of APPs shouldn't be an issue as these ROMS only have the very basic apps.
I have read this forum and see the various and asundry errors some are getting, so far I have never gotten a major error, except for when I forgot to do the Wipe Data/Factory Reset after flashing.
I also got the "No Tablet Mode Option" with 04/10 with enhancement v2.
But I consider these minor issues and currently am running 08/10 with no issues, works smoother then any version of Microsoft Windows I have dealt with.
These developers are exceptional.
MojoGB said:
I don't know if I am doing it right or wrong but I have flashed numerous ROMs and lately have flashed every version of SGT7+CM10+Cherry Picks,By meghd00t. from 24/09 thru my current installation of 08/10 with only one glitch and that was when I flashed enhancements v2 on top of v1.
I have never had any other issues with the above mentioned ROMs except when I flashed 04/10 with enhancement v2. I didn't have the tablet option.
The way I do it is as follows:
1. format /system
2. format /data
3. Flash ROM
4. Flash CWM emmc
5. Flash GAPPs
6. Reset Factory/format data
7. Remove CWM SD card put in data SD Card with Flash Player (no longer avail on Google Play)
8. Boot from CWM menu
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oh, so you always reset factory every time you upgrade the ROM? that way will delete all the old data/apps you installed, so you need to install all the apps again?
this is my concern, because i dont want to reinstall apps, or lose my data. so i think i just need flash the new ROM, then Wipe cache/Dalvik cache, and hopefully all the old apps and data are still intact.
thanks.
MojoGB said:
I don't know if I am doing it right or wrong but I have flashed numerous ROMs and lately have flashed every version of SGT7+CM10+Cherry Picks,By meghd00t. from 24/09 thru my current installation of 08/10 with only one glitch and that was when I flashed enhancements v2 on top of v1.
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i have some questions on the "Enhancements":
(1) the correct way to install them is to flash version 1 first, then immediately flash version 2 right after version 1 (without having to reboot first)?
(2) i am not sure what i will get with this "enhancements". they will make video/audio playing more smoothly? is the quality improvement really noticable? anything else, like they make the battery last longer, for example?
thanks,
Jun
If you're running 08/10, the enhancements are not needed. That's my understanding at least. I had problems with V2 so I decided to not install them while on 04/10.
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Flash Rom
junkoi said:
i have some questions on the "Enhancements":
(1) the correct way to install them is to flash version 1 first, then immediately flash version 2 right after version 1 (without having to reboot first)?
(2) i am not sure what i will get with this "enhancements". they will make video/audio playing more smoothly? is the quality improvement really noticable? anything else, like they make the battery last longer, for example?
thanks,
Jun
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If you flash enhancement v2 on top of version 1 you will have problems, UI will stop. If you only flash v2 you will not have the Tablet Mode Option. So my understanding is that you can use either v1 or v2 but not both.
ROM 08/10 does not need either enhancement as indicated by the developer. ROM 08/10 works great by itself is my experience.
If I'm installing a ROM, backup the existing ROM and wipe everything.
If I'm installing a .zip package like GApps or an enhancement, backup the existing ROM, wipe Data/Dalvik.
Folks, these are development ROMS. Thar be bugs in thet thar code. It's going to take you longer than the time you think you're going to save by doing a dirty flash, and then having to restore the thing to stock (worse case) only to start all over.
Don't ask how I know.
wellersl said:
If I'm installing a ROM, backup the existing ROM and wipe everything.
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so it is possible to back up the existing data/apps, then restore them back after the new ROM is flashed? could you please confirm this?
if so, how & what is the right steps to do the backup? can we still use CWM, or use ROM Manager, or other tools?
thanks